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Guitar, Music and Martial Arts Glossary


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Term Definition
3:1 Rule A microphone placement rule that recommends that when mixing multiple microphones to the same channel, the distance between microphones should be at least three times the distance from each microphone to the source of the sound. This prevents audible phase interference from changing the sound.
A Cappella Unaccompanied vocal music
A Tempo Return to the preceding tempo
A-B A listening comparison between two distinct audio sources, whose levels have been matched. The comparison is done by rapidly switching from one to another. You can use this technique to reference your mix against that of a commercial CD.
A-Weighted A type of measurement made through a filter with a specific frequency response. An A-weighted measurement is taken through a filter that simulates the frequency response of the human ear.
Accelerando Gradually getting faster
Accent Emphasis placed on a note
Accent Microphone Also referred to as 'spot microphone', a closely-placed mic that is ultimately mixed with a distantly-placed mic to improve the tonal balance, as a special effect, or to add presence.
Access Jacks Two separate jacks or one tip-ring-sleeve jack on a mixing board that allow the signal to be routed from the input channel, to an effects device or signal processor, and back into the input channel. Inserting a plug into the access jacks breaks the signal flow, and allows the inclusion of a compressor, exciter or other device.
Acid Rock Rock music with a repetitive beat and lyrics that suggest psychedelic experiences.
Action The height of the strings above the fret board.
Ad/Da Converters AD converters convert analog audio signals to digital; DA converters convert digital audio back to analog.
Adagio A slow tempo, but not as slow as largo
ADSR An acronym for attack, decay, sustain, and release, the four stages of a standard envelope generator.
AES An acronym for the Audio Engineering Society.
AES/EBU Professional digital audio standard developed jointly by the Audio Engineering Society (AES) and the European Broadcast Union (EBU). The standard describes a format for transmitting stereo digital audio through a stereo cable (such as fiber optic, coaxial, or balanced XLR).
Aftertouch A MIDI message that reports the amount of pressure applied to the keys after they have been pressed.
Airy A mix where the instruments sound as though they are surrounded by a large reflective space full of air, with good high-frequency reflections. Also refers to tracks where true stereo imaging has been captured, as opposed to panned mono tracks.
Algorithm A method or script for creating an outcome. For synthesizers, an algorithm generally refers to the parameter values that create a specific sound.
Alignment The fine-tuning of tape-head azimuth and tape-recorder circuitry to achieve optimum performance from the type of tape being used.
Alignment Tape A pre-recorded tape containing various tones for alignment of a tape recorder.
Allegretto A little slower than allegro
Allegro Lively, fast
Alternating Bass A style of playing where the right hand alternates between two or more strings.
Alternative Guitar-based rock with desultory male vocalists or chirpy female vocalists. It grew in response to the last gasp of dinosaur bands from the 1970s and from the commercial success of bands such as Nirvana and Pearl Jam. Also known as modern rock.
Alto A low female voice
Ambiance The acoustics, reverberation and early-reflections in a room. Also the audible sense of a room surrounding a recorded instrument.
Ambiance Microphone A mic placed at a distance from the sound source in order to pickup room ambience.
Amplifier A device that increases the amplitude of the voltage, power, or current of a source signal, making an audio signal louder.
Analog An audio signal is an electrical representation of, i.e., is analogous to, a sound waveform. The signal's voltage fluctuates in the same pattern as the speaker cone that reproduces it. Analog synths use oscillators, filters, amplifiers and other electrical components to create electrical signals analogous to the audio wave forms they are trying to represent.
Analog-To-Digital Converter Also known as 'A/D converter', an electrical circuit or chip that converts an analog audio signal into a digital bit stream.
Andante walking tempo
Aria a song for a solo singer and orchestra
Arpeggiate To play the notes of a chord one after another instead of at the same time.
Arpeggio A chord played one note at a time.
Arrangement an adaptation of a musical composition from one medium to another
Arranger one who reworks preexisting musical compositions
Articulation clarity and distinct rendition in musical performance
Ascap An acronym for the American Society of Composers, Authors, and Publishers. ASCAP is one of several performing rights organizations which protect artists' and publishers' performing rights. ASCAP collects, handles and distributes royalties for member composers and publishers whose music has been played or performed publicly.
Ascii An acronym for American Standard Code for Information Interchange. A standard code for representing text (characters, numbers, special characters, etc.) inside a computer. ASCII is also one of the codes used in the transfer of data or files between computers.
Assign Also known as 'channel assign', to send or route an audio signal to one or more selected mixer channels.
Atonal The absence of all tonality in music; the term originally came about to describe the music of Schoenberg.
Attack The beginning of a note. The first portion of a note's envelope in which a note rises from relative silence to its maximum volume.
Attack Time When using a compressor, the time it takes for gain reduction to occur in response to a musical attack.
Attenuate To reduce the level of a signal.
Attenuator In a mixing console, an adjustable resistive network that reduces the microphone signal level to prevent overloading of the input transformer and mic preamplifier.
Authenticity performing music as nearly as possible the way it was performed at the time it was created
Auto Punch The process of automating punch in and punch out on a digital recorder, sequencer or tape recorder. Typically, the exact times (down to the hundredth of a second) of punch in and out may be entered, allowing precise overdubbing.
Automated Mixing Using a computer or computer-enhanced mixer to remember mixer settings, mute switchings and fader movements, so that a mix can be duplicated, edited or refined in multiple stages.
Auxiliary Bus Also known as 'Effects bus' or 'Aux bus', the bus that feeds signal processors, monitor mixes, or effects devices.
Auxiliary Send Also known as 'Effects send' or 'Aux send', the control on a mixer that determines the level of channel signal sent to a signal processor, such as a reverb or chorus unit.
Azimuth In a tape deck, the angular relationship between the head gap and the tape path.
Azimuth Alignment The adjustment of the playback or record head to achieve proper alignment (90 degrees) with the tape path.
Back-Timing A recording technique of cueing up a musical background to a voice track so that the music ends simultaneously with the voice-over.
Backbeat accents on beats 2 and 4
Balance The relative volume levels of various instruments or tracks.
Balanced Line A cable (such as a three-pin XLR mic cable) with two conductors surrounded by a shield in which each conductor is at equal impedance to the ground. With respect to ground, the conductors are at equal potential but opposite polarity. The balanced line reduces noise because as the two conductors pick up noise, the opposing polarity ensures the noise is canceled when the inverted signal on one conductor is 'added' to the original signal on the second conductor after the signal reaches the destination.
Ballsy A track or mix with emphasized low frequencies, at about 200-250 kHz. Also, an acoustic or electric guitar with a good low-midrange frequency response.
Bandpass Filter a large instrumental ensemble consisting of wind and percussion instruments
Bandpass Filter In a crossover network, a filter that passes a band or range of frequencies but sharply attenuates or rejects frequencies outside the band.
Bar A sub division of time in music.
Bar Line A vertical line which shows the end of a bar of music.
Barbershop Harmony harmony which is created by four male voices; bass, baritone, lead (has the melody), and tenor (who sings higher in pitch than the melody)
Baritone the male voice between bass and tenor
Baroque a period of music between 1600 and 1750
Basic Tracks Recorded tracks of rhythm instruments (bass, rhythm guitar, drums, keyboards).
Bass a low male voice
Bass Trap An assembly whose function is to absorb low-frequency sound waves.
Bass-Strum Style A right hand technique which involves picking a bass note then strumming the rest of the chord.
Bassy A track or mix with emphasized low frequencies, at about 200-250 kHz.
Baud Rate The symbol frequency being used to transmit data over a communications line or a MIDI cable. Baud rate is often used interchangeably with bps (bits per second), although incorrectly. For example, both CCITT V.22bis (2400 bps) and CCITT V.22 (1200 bps) transmit data at 600 baud, but V.22bis modems use 4 bits per symbol while V.22 modems use 2 bits per symbol.
BBS An acronym for Bulletin Board Systems. An electronic form of a bulletin board, containing graphics, sounds and text files that may be downloaded from the BBS to a personal computer. A BBS can be established on computers of all sizes, and can be accessed by PCs all over the world.
Beam A horizontal line which shows two eighth or sixteenth notes belonging to the beat shown on the bottom of the time signature.
Beat A sub division of time usually felt as the pulse within a piece of music.
Bi-Amplification Also known as 'Bi-amping', driving a woofer and tweeter with different power amplifiers. A crossover is typically connected ahead of these power amplifiers.
Bi-Directional Communications The ability of a keyboard, sound module or drum machine to send and receive MIDI messages simultaneously from a computer or other device.
Bi-Directional Microphone Also called a 'cosine microphone' or 'figure-eight microphone' due to the shape of its polar pattern, a microphone whose pickup pattern is sensitive to sound arriving at the front and behind the microphone. It rejects sounds approaching either side of the mic.
Bias In tape-recorder electronics, an ultrasonic signal that drives the erase head, and also is mixed with the audio signal applied to the record head to reduce distortion.
Binary Form two part form; AB
Binaural Recording A two-channel recording made with an omnidirectional microphone in each ear of a human or a simulated head for playback over headphones. The object is to represent sound as closely as possible at all frequencies.
Bit Short for binary digit, the smallest unit of information in a binary number system. A bit may take on one of two values; either a 0 (off) or 1 (on).
Bits Per Second Also known as 'bps', it indicates the maximum number of bits of data transferred per second, through a phone line, communication line, or MIDI cable.
Blanketed A track or mix with weak highs; muffled as though a blanket was covering the loud speakers.
Bloated A sound with emphasized or excessive mid-bass around 250 kHz.
Bloom A sound or track with excellent reproduction of dynamics and reverberation, and a good low-frequency response. Also referred to as 'Spacious'.
Bluegrass An early form of country music that combines the gospel-tinged vocals of the Blue Ridge Mountain region with folk melodies. Instrumentation generally includes guitars, banjos, mandolins and fiddles.
Blues A style of music that evolved from southern African-American secular songs and is usually characterized by slow tempo and flatted thirds and sevenths. Blues influenced the development of rock, rhythm and blues and country music.
Blumlein Array A stereo miking technique where two coincident bi-directional mics are angled 90 degrees apart (45 degrees to the left and right of center).
Blurred An unfocused sound with vague or poor stereo imaging. A sound or track with poor transient response.
Bmi An acronym for Broadcast Music International. BMI is one of several performing rights organizations which protect artists' and publishers' performing rights. BMI collects, handles and distributes royalties for member and publishers whose music has been played or performed publicly.
Board Also known as 'mixing console', a large unit having additional functions such as tone control, equalization, pan pots, channel assigns, monitoring sends, and control of signals sent to external signal processors.
Body The main part of a guitar (not the neck).
Boogie-Woogie A style of jazz piano characterized by a repeated rhythmic and melodic pattern in the bass and a series of improvised variations in the treble.
Book the story and the dialogue of a musical
Boomy A sound or mix with excessive bass response around 125 Hz.
Bop A style of jazz characterized by rhythmic and harmonic complexity, improvised solo performances and a virtuoso execution.
Bottom Another term for low frequencies, usually below 125 Hz.
Bouncing Tracks When two or more separate tracks are mixed onto an empty track. The submixed tracks can then be erased, freeing them up for new music.
Boundary Microphone A mic designed to be used on a hard, reflective surface. The mic is mounted as close to the surface as possible so that direct and reflected sounds arrive at the microphone diaphragm in phase at all frequencies.
Boundary Microphone A mic designed to be used on a hard, reflective surface. The mic is mounted as close to the surface as possible so that direct and reflected sounds arrive at the microphone diaphragm in phase at all frequencies.
Boxy A mix having resonances as if the music were played from the inside of a box, perhaps due to a boost at 250 to 50o Hz.
Brass wind instruments who derive their sound from lip vibrations transmitted through cup shaped mouthpieces
Breathing Also known as 'pumping', the undesired audible rise and fall of background noise that may occur with a compressor.
Breathy Flute, clarinet, or sax recordings with audible breath sounds. Also, sounds with a good response the upper midrange and high frequencies.
Bridge A connective part of a musical composition; the "b" section of AABA song form; a support to raise the strings of a stringed instruments
Bright A tonal balance with emphasized high frequencies or upper harmonics. Sounds having harmonics which are strong relative to fundamentals.
Brittle A sound or mix with high-frequency peaks or weak fundamentals; lacking roundness and fullness.
Broadway Musical a stage presentation which combines the four fine arts of visual art, music, drama, and dance
Buffer A storage or 'holding' area for data in the computer's memory until it can be processed.
Bulk Tape Eraser A large electromagnet used to erase a whole reel of recording tape or an entire cassette at once.
Bus Can mean the output of a mixer or submixer, or a channel that feeds a tape track, digital recorder, signal processor, or power amp.
Bus Master Located in the output section of a mixing console, a fader or knob that controls the output level of a bus.
Bus Trim Located in the output section of a mixing console, a control that provides variable gain of a bus, used in conjunction with the bus master for fine adjustment.
Buzz An unwanted edgy tone than can be present in an audio signal, containing harmonics of 60Hz.
Byte A group of eight adjacent bits recognized as a single unit. A byte can represent characters, numbers, punctuation or any special codes. Bytes are to computers what words are to humans.
Cadence a breathing break; termination of a musical phrase
Cadenza a solo section in an improvisatory style
Cakewalk an exuberant dance with syncopated rhythms that may represent an early form of jazz
Calibration Commonly referred to as 'alignment', the adjustment of tape-recorder electronics and head alignment to achieve the best performance for the type of tape being used.
Call And Response question and answer pattern in which a soloist leads and group responds
Calypso A type of music that originated in the West Indies and is characterized by humorous, improvised lyrics often on topical subjects.
Canon a musical form that uses exact imitation
Cans A slang word for headphones.
Capstan In a tape-recorder transport, a rotating post that contacts the tape (along with the pinch roller) and pulls the tape past the heads at a constant speed during recording and playback.
Cd Rom An acronym for Compact Disc Read Only Memory. A compact disc full of data such as programs, graphics, sounds, movies, etc., that can be read by a computer, but cannot be written to or changed.
Channel A single path of an audio channel. Usually, each channel contains a different signal or one half of a stereo pair.
Charleston a kind of fox trot with a characteristic syncopated rhythm, probably named for the city in South Carolina
Chart a jazz score
Chase Lock A synchronization system for audio equipment..
Chesty A track in which the vocalist sounds as if his chest was very large, due to an emphasis in the low-frequency response around 125 to 300 Hz.
Chops Ability to play an instrument. To have great chops is to be technically or stylistically profient on a musical instrument.
Chorale a hymn tune
Chord simultaneous combination of at least three different pitches
Chord A group of three or more notes played simultaneously.
Chord Chart A diagram which shows a chord progression.
Chord Progression A sequence of chords played one after another.
Chorus A special effect in which a single sound source is made to sound like several, through the use of time delay and detuning. Delaying the input by a slowly varying time between 15 and35 milliseconds and mixing the dry input signal back in, a wavy, multiple-voice effect is achieved. It's also possible to feed a portion of the signal back into the input.
Classical Music art music of any culture; distinguished from folk, jazz or popular music
Classical Music European music of the Classical Period; 1750 - 1825
Clean Free of noise, distortion, overhang, leakage. Not muddy sounding.
Clear Easy to hear or differentiate; not distorted. Reproduced with sufficient high freqencies.
Clef the symbol indicating pitch designations for the lines and spaces of the staff
Click A component of a bass drum sound, the attack of the beater on the head of the drum.
Click Track Audio 'clicks' recorded on one track of a multitrack recorder, to indicate the tempo of the music on the tape. Clicks can be translated by certain devices into MIDI sync to control a sequencer, or can simply be used to keep musicians in time when overdubbing.
Clinical A track or mix which is too clean, lacking both warmth and an edge.
Close Miking A recording or sound reinforcement technique whereby the mikes are placed close to vocalists and to instruments or amplifier speakers. Close miking yields a great deal of presence and detail for the nearby sound source, while avoiding leakage from more distant sound sources. Most of today's popular music recordings use close miking techniques.
Coda tail; a concluding section of a musical composition
Coincident Pair Two separate mikes placed so that the microphone diaphragms occupy approximately the same point in space. The are mounted one directly above the other, and angled apart.
Coloration Non-uniform frequency response resulting in distortion of the tonal quality of the source.
Colored A sound that is not true to life, perhaps due to an unnatural use of external processors. A mix that has a not-flat response with peaks and dips.
Comb-Filter Effect The frequency response caused by combining a sound with its delayed duplicate. The frequency response displays a series of peaks and dips caused by phase interference. The peaks and dips look like the teeth of a comb, with very narrow, deep notches where signals are attenuated.
Combining Amplifier An amplifier in which the outputs of two or more signal paths are mixed together, to feed a single track of tape or hard-disk recorder.
Complete Cadence a cadence which ends on the tonic
Complex Wave A sound wave with more than one frequency component.
Composer a person who creates musical works
Composition a musical work or the craft of making a musical work
Compressed A sound, recorded track, or mix where the dynamics are restricted or narrowed.
Compression The intentional reduction in dynamic range to increase sustain and/or add punchiness, caused by a the use of a compressor/limiter.
Compression Ratio Also known as 'slope', in a compressor/limiter, the ratio of change in input level (in dB) to the change in output level (in dB). For example, a 4:1 ratio means that for every 4dB change in input level, the output level changes 1dB.
Compressor A signal processor that reduces dynamic range by using automatic volume control. Also, an amplifier whose gain decreases as the input signal level increases above a pre-set point.
Concerto a multimovement composition (usually three movements) for solo instrument or instruments and orchestra
Condenser Microphone Also known as 'Cardioid microphone, a mike that works on the principle of variable capacitance to generate an electrical signal.
Conductor the director or leader of a musical group
Configure To prepare a program, modem, keyboard, or other electronic device to operate with specific characteristics.
Conjunct stepwise movement in the melody
Connector Also known as a 'plug', the physical interface on cabling or equipment used to connect or hold together a cable and an electronic component that permits a sound signal or data to flow into an external destination, such as a mixing board or a computer.
Console Also known as 'mixing console' or 'board', a large unit having additional functions such as tone control, equalization, pan pots, channel assigns, monitoring sends, and control of signals sent to external signal processors.
Consonance absence of tension or discord in music
Constricted A sound or track with poor reproduction of dynamics; overly compressed or pinched, with distortion at high levels.
Contact Pickup A transducer that contacts a guitar or other musical instrument and converts its vibrations into an electrical signal.
Contemporary music or art that is current
Continuous Controller A type of MIDI message intended to control dynamics (volume, modulation, etc.) or continually changing aspects of a performance. Continuous controllers allow enhanced musical expression for keyboardists and previously sequenced tracks, and also can be used to modulate effects device parameters such as reverb time or chorus depth,
Contour the shape of a melody or its rise and fall
Contralto low female voice; same as alto
Contrapuntal the combining of melodic lines
Control Room The room in which the producer and engineer monitor and control the recording.
Control Voltage An electrical signal used to adjust the values of settings in analog circuits. If you send a specific electrical voltage to a module of a synthesizer (such as an ASDR envelope, you can specify what you want the module to do (perhaps lengthen the decay time).
Count In A count at the start of a piece of music to show when to start and how fast to play (usually the top number on the time signature).
Counterpoint the technique of combining melodic lines to create a polyphonic texture
Crack A snare drum sound in which the sharp attack of the stick on the head of the snare has been boosted for emphasis at around 5 to 10 kHz.
Creative License the liberty artists take when interpreting another artist's work
Crescendo gradually get louder
Crisp A sound or track with an extended high-frequency response. A cymbal sound with sizzle and presence.
Crossover An electronic network that divides an incoming signal into two or more frequency bands. Crossovers can be active (with amplifying components) or passive (non-amplifying).
Crossover Frequency The single frequency at which both filters of a crossover network are down 3dB.
CSA An acronym for the Canadian Standards Organization, that regulates and controls Canadian data communications standards.
Cue Also known as 'Cue send', in mixer input module, a control that adjusts the amount of signal feeding the cue mixer which, in turn, feeds a signal to headphones in the studio. Also, a section of music or sound effects used in film or video production. The points in the film where the cues are played to sync with elements of the picture are called hits or cue points.
Cue Mixer A submixer in a mixer input module that takes signals from cue sends as inputs and mixes them into a composite signal that can be used to drive headphones in the studio.
Cue Sheet Typically used during the mixdown stage, a chronological list of mixer control adjustments and fader movements needed at various points in the recorded tracks. The list may have tape-counter or elapsed-time readings to indicate exactly when the adjustments should be made.
Cue System A monitor system that allows musicians to hear themselves and previously recorded tracks through headphones.
Culture the customs, ideas, tastes, and beliefs acquired from a person's background; the sum total of one's lifestyle
Cutoff Frequency The designated frequency of a filter after which the sound is not allowed to pass. In a high-pass filter, a high cutoff frequency will be excessively trebly and bright, as no low frequencies will be present. In a low-pass filter, a low cutoff frequency may be too muted and dark, as no high frequencies or overtones will be present.
Daisy Chain A term used when a group of modules (such as music modules or SCSI hard drives) are interconnected as follows: Module A's output is connected to module B's input; module B's output is connected to module C's input; module C's output is connected to module D's input, etc.
Dark A sound or track with weak high frequencies; opposite of bright.
DAT An acronym for Digital Audio Tape, a proprietary tape format used in DAT recorders. Similar to VHS VCR machines, DAT recorders use a helical scanning process to encode the digital audio. The digital audio is represented by streams of ones and zeros that are encoded onto the digital tape.
Data Information that is processed or stored by a computer.
DAW An acronym for Digital Audio Workstation, a stand-alone system of hardware and software which will allow the recording, playback, editing, and storage of digital audio.
dB Abbreviation for decibel, a unit of measurement of audio level. dB is a logarithmic expression of a ratio comparing two sounds, such as how much louder one sound is than another, or how much quieter the level is at the output of a compressor than at the input.
De-Esser A signal processor that removes musically excessive sibilant sounds ("sh" and "s" sounds) by compressing the high frequencies around 5-10kHz.
Dead Having very little or no reverberation; dry.
Decay The segment of the envelope of a note in which the envelope goes from maximum to some mid-range level. Also, the decline in level of reverberation over time.
Decay Time Also known as 'Reverberation time' or 'RT', the time it takes for reverberation to decay to 60dB below the original sustained level.
Decibel The unit of measurement of audio level. Ten times the logarithm of the ratio of two power levels. Twenty times the logarithm of the ratio of two voltages. Standard abbreviations using decibels include: dBV (decibels relative to 1 volt), dBu (decibels relative to 0.775 volt), dBm (decibels relative to 1 milliwatt) and dBA (decibels, A weighted).
Decoded Tape A tape that is expanded after having been compressed/coded by a noise reduction system, such as Dolby. The tape will have normal dynamic range.
Decrescendo gradually get softer
Delay The time interval between a signal and its repetition. Processors that can delay a signal for anywhere from 10 milliseconds to 10 seconds are called digital delays or delay lines.
Delicate A sound with high frequencies up to 15 to 20 kHz, without peaks. Delicate sounds are also described as airy, sweet and open.
Demagnetizer Also known as a 'Degausser', an electromagnet with a probe tip that can eliminate residual magnetism by touching it to elements of the tape path (such as tape heads and tape guides).
Depth The audible sense of nearness and farness of recorded instruments or elements of a mix. We perceive close instruments to be those with a high ratio of direct-to-reverberant sound, and distant instruments to be those with a low ratio of direct-to-reverberant sound.
Design Center The portion of fader travel (usually marked), about 10-15dB from the top, where console gain is distributed for optimum headroom and signal-to-noise ratio. As a starting point in gain staging, each fader being used should be placed at, or close to, design center.
Designation Strip A strip of paper taped near console faders to indicate the instrument that each that each fader controls.
Desk An alternate (England, Ireland) word for mixing console or board.
Detailed A mix or track in which it is easy to hear tiny details in the music; also described as 'articulate'. Characterized by sharp transient response and good high-frequency response.
Development the section of sonata form in which thematic reworkings and modifications occur
Diatonic the tones of a major or minor scale
Diffusion An even distribution of sound in a room.
Digital A circuit, processor, or other device using a binary numeric (1 or 0) system to represent and process information. A digital tape recorder converts the incoming analog audio signal into a stream of ones and zeros that are stored onto the tape. Upon playback, the series of numbers are converted back to a analog signal.
Digital Audio Audio signals converted into binary digits (ones and zeros) onto digital tape, CD-R or a hard drive, readable by a computer.
Digital Recording A recording system in which the audio signal is stored in the form of binary digits.
Digital-To-Analog Converter A circuit or chip that converts a digital audio signal into an analog audio signal.
Dim To temporarily reduce the monitor volume by a preset amount.
Diminuendo gradually get softer
Direct Box A device used for connecting an amplified instrument directly to a mixer mike input. The function of the direct box is to convert a high-impedance unbalanced audio signal to a low-impedance balanced audio signal.
Direct Injection Also known as 'DI', the process of recording with a direct box.
Direct Output Also known as 'Direct out', an output connector used to feed the signal of an instrument to one track of a tape recorder.
Direct Sound Sound traveling directly from the sound source to the microphone (or to the listener) without early or late reflections.
Directional Microphone A microphone that has sensitivty in specific directions. Examples include unidirectional or bidirectional microphones.
Directivity Factor For a loudspeaker, a measurement of how much the speaker focuses sound in a given direction. Directivity is measured by taking the ratio of the average sound level in a circle around the speaker to the maximum sound level in front of the speaker (at a given distance and frequency).
Disjunct melody formed by leaps rather than by steps
Dissonance discord in music, suggesting tension
Distant A quiet or reverberant sound; opposite of forward.
Distant Miking Also known as ambient miking, a microphone placement technique where one or more mikes are located at a distance of at least several feet from the speakers or performers. Distant miking allows a greater area to be covered using fewer microphones than close miking. Distant miking will not generally provide the presence and detail possible with close mike placement.
Distortion An intentional desired, or unintentional unwanted, change in the audio waveform, causing a raspy or edgy sound quality.
Dolby Tone A reference tone recorded at the start of a Dolby-encoded tape, mainly for alignment purposes.
Doo-Wop A style of music popularized in the 1950s with words and nonsense syllables sung in harmony by small groups.
Double Bar Line Two vertical lines which show the end of a section or piece of music.
Doubling An effect in which an audio signal is combined with its 15-35 millisecond delayed replica. It can sound as if there are two identical voices or instruments playing in almost-perfect unison.
Down Stroke Right hand movement from top to bottom.
Downbeat the accented first beat in a measure
Drone a long sustained note; usually in the lower part
Drop Frame In video production, a mode of SMPTE timecode which causes the timecode to match a regular clock. Once every minute, except for the tenth minute, frame numbers 00 and 01 are dropped.
Drop In/Out Alos known as 'punch in/out', a feature of a tape or hard-disk recorder that permits insertion of a corrected musical part into a previously recorded track by going into and out of record mode at designated time.
Dropout During playback of an analog tape recording, a momentary loss of high frequencies caused by loss of contact of the tape from the playback head due to dust, tape-oxide deterioration, etc.
Drum Machine A device (stand-alone or within a synthesizer) capable of producing drum-like sounds or digital recordings of real drum sounds.
Dry A sound or track having little or no audible reverberation or other effects. Lacking spaciousness. Also, a close-sounding signal that has not been processed by a reverb or delay effect. A sound with an overdamped transient response.
Dsp Board An acronym for Digital Signal Processing Board, which may encompass both audio and video processing, that manipulates signals internally within a custom chip in the digital domain.
Dubbing putting all the elements of sound; dialogue, sound effects, and music onto one soundtrack
Duet composition for two performers
Dull A sound or track with weak high frequencies; opposite of bright.
Duple beats grouped into sets of two (strong-weak)
Dynamic Microphone A type of mike generating electricity when sound waves cause a conductor to vibrate in a stationary magnetic field. Ribbon mikes and moving-coil mikes are two examples of dynamic microphones.
Dynamic Range The difference (usually measured in dB) between the loudest and the softest sounds in a song or track.
Dynamics the loudness or softness of a musical passage
Earth Ground A connection to the physical ground or 'earth'. This connection can be made either to a cold water pipe or a special copper rod driven into the soil.
Echo A delayed repetition of a sound or signal, usually at least 50 milliseconds after the original sound.
Echo Chamber A hard-surfaced room or enclosed space containing a microphone placed at a distance from a loudspeaker. When sound is played through the speaker, the mic will pick up reverberation from the room.
Echo Return Also known as 'Echo receive' or 'Effects return', a control on the mixing console that adjusts the amount of signal received from an echo unit or reverb unit. The echo return signal is combined with the program buss signal.
Echo Send Also known as 'Effects send', similar to an auxiliary send, the control on a mixer that determines the level of channel signal sent to a dedicated echo unit or reverb device.
Edgy A sound or track with too many high frequencies resulting in a overly trebly sound. Also, a sound with harmonics which are too strong relative to the fundamentals, resulting in distortion and/or a raspy sound.
Editing To modify, add, or delete sections or parts from a song, track, sample, MIDI track, etc.
Editing Block A metal block that secures the magnetic tape to assure accurate splicing/editing cuts.
Editor/Librarians Computer programs specializing in synthesizer sound editing and patch organization. The librarian retrieves sound parameter data from synthesizers, and the editor permits the altering of sounds in the computer.
Eeprom An acronym for Electrically Erasable Programmable Read Only Memory. A computer chip that can be loaded with data (sound samples, program patches, etc.) and later erased (with an electrical voltage) and loaded with updated information.
Effects A generic term for the enhancement or modification of sound by the use of signal processors such as delay, echo, chorus, reverberation, pitch shifting, etc.
Effects Buss A buss that feeds external or internal (to the mixing board) effects devices and signal processors.
Effects Mixer A submixer in a mixing console that combines signals from effects sends and directs the mixed signal to the input of another effects device.
Efficiency In a loudspeaker, the ratio of acoustic power output to electrical power input.
EIA An acronym for the Electrical Industries Association.
EIA Rating A specification of microphone sensitivity that states the microphone output level in dBm into a matched load for a given sound pressure level or SPL. The formula is SPL + dB (EIA rating) = dBm output into a matched load.
Eighth Beat A beat half as long in time as a quarter beat.
Electret Condenser Microphone A type of condenser mic where the electrostatic field of the capacitor in generated by an electret, a substance which permanently stores an electrostatic charge.
Electric Guitar A guitar which can be electrically amplified (usually with a solid body).
Electrostatic Field The force field between two conductors charged with static electricity.
Electrostatic Interference The undesired presence of an electrostatic hum field in signal conductors.
Encoded Tape A tape having a signal compressed by noise reduction.
Ensemble a group of musicians performing together; the quality of togetherness
Entr'Acte Music music that is performed between acts of a staged production
Envelope The rise and fall in amplitude (volume) of a note. The envelope of a note consists of the four stages: attack, decay, sustain, and release.
Envelope Generator Also known as a 'Contour generator', a device, circuit, or software algorithm that generates an ADSR envelope.
Eprom An acronym for Erasable Programmable Read Only Memory. A computer chip that can be loaded with data (sound samples, program patches, etc.) and later erased (with an ultra-violet light) and loaded with updated information.
Equalization Often abbreviated to 'EQ', the adjustment of specific frequencies (bands) to alter the tonal balance or to remove unwanted frequencies.
Equalizer A circuit with the ability to change the frequency response of a signal passed through it.
Erase To remove an audio signal from magnetic tape by applying a varying magnetic field that randomizes the magnetization of the magnetic particles on the tape.
Erase Head A head in a tape recorder that erases the signal from tape.
Etched A sound that is clear but very close to being edgy, with an emphasis in the frequency response around 100 kHz or higher.
Expander A signal processor that increases the dynamic range of a signal.
Exposition the opening section of a sonata form in which the main thematic material is given its first complete statement
Fade Out To slowly and smoothly reduce the level of the last few seconds of a track or recorded song, by gradually pulling down the fader.
Fader A linear or sliding volume control, used to adjust audio level.
Fat A sound which has been slightly distorted by means of analog tape saturation or tube distortion, yielding a warm, full sound. Also, a sound which is spatially diffuse, accomplished by panning a signal hard left in the stereo spectrum, then delaying the signal slightly and panning the delayed signal hard right.
FCC An acronym for the Federal Communications Commission, the U.S. government agency responsible for regulating and approving data communications devices, telecommunications devices and the public airwaves.
Feed The act of sending a signal to some device, channel input or bus. A feed can also be an output signal send to a device, bus or input.
Feed Reel The left-side reel on a cassette tape or tape recorder that unwinds during recording or playback.
Feedback The return of a portion of the output signal to a device's input. A common source of feedback is sending the output of a guitar amp's speaker into a guitar's pickups, by stepping close to the amp.
Fermata a hold
Filter A circuit that attenuates or removes frequencies from a sound or waveform above or below a certain frequency. Filters can be used to reduce unwanted noise above or below the frequency range of a voice or instrument. One type of filter, a bandpass filter, allows the frequencies within a specified range to pass, while a notch filter inhibits the frequencies in a specified range. Even MIDI data can be filtered, using a MIDI data filter, to remove specified messages (pitch bend, modulation) from the MIDI data stream.
Finale concluding movement or passage in a musical work
Fingerstyle A right hand technique which involves using some or all your right hand fingers.
Flanging An effect in which a delayed signal is varied between 0 and 20 milliseconds of delay and combined with the original signal. The resulting swishing, hollow sound is reminiscent of a jet passing overhead. Usually a variable comb filter is used to produce the flanging effect.
Flat symbol that lowers a pitch by one half step (b)
Flat Lower in pitch.
Fletcher-Munson Effect The psycho acoustical phenomenon in which the subjective frequency response of the human ear changes with the audio level. The result of this effect is that a sound played at a lower relative volume appears to lose both low and high frequency response.
Float To disconnect from ground.
Flutter A rapid and periodic variation in tape speed.
Flutter Echoes A rapid series of echoes occurring between two parallel walls.
Flux Magnetic lines of force.
Fluxivity The measure of the flux density of a magnetic recording tape, per unit of track width.
Fly-Wheeling A feature of a sync box that allows it continue to generating reliable MIDI sync even when a bad sync stripe is being read from tape.
Fm Synthesis A type of synthesis based on complex combinations of sine waves.
Focused A sound which is easy to locate in the stereo field, due to a small spatial spread.
Foldback Also known as 'FB' or 'Cue system', a monitor system that permits musicians to hear previously recorded tracks, along with their live performance, through headphones.
Foley Film term used to describe the process of triggering the proper sound effect at the precise time. Usually the trigger time is specified as a SMPTE time given in hours, seconds, minutes, and frames.
Folk Music 1. Music that originates among the common people of a nation or region and is spread about or passed down orally. It is characterized by simple melodies. 2. Contemporary music based on traditional folk that often contains political or satirical lyrics.
Folk Music uncomplicated music that speaks of everyday matters, the first popular music
Form musical design; incorporating repetition and contrast, unity, and variety
Forte (F) loud
Fortissimo (Ff) very loud
Forward A sound or track which sounds close to the listener, often described as an intimate sound. Also, a sound with a boost in the frequency response at about 2 to 5 kHz.
Four/Four Time A time signature of four quarter beats in one bar of music.
Fox Trot an American ballroom dance dating from about 1915 that became the basis for most subsequent dance steps in duple time
Frequency Measured in hertz (Hz), the number of cycles per second of a sound wave or audio signal. A high-frequency sound (example, 12,000 Hz) has a high pitch, and a low-frequency sound (example, 200 Hz) has a low pitch.
Frequency Response The range of frequencies that an audio device will reproduce at an equal level, within a tolerance, such as +/- 2dB.
Fret Board The front side of a guitar neck which contains the frets.
Frets The vertical metal bars on a guitar fret board.
Fretting Placing a finger next to a fret.
Fsk An acronym for Frequency Shift Keying. FSK is an older method (pre-MIDI) of keeping drum machines and tape recorders in sync. An audio tone would be generated by a drum machine or sequencer and recorded onto one track of the multitrack tape recorder. The tone would alternate between two distinct frequencies and the rate of alteration would correspond to the tempo of the music.
Fugue a polyphonic composition consisting of a series of successive melody imitations
Full When used to describe a sound's tonal balance, complete or near-complete reproduction of low or fundamental frequencies, with adequate level around 200 Hz. A sound with strong fundamental frequencies relative to harmonics. Female voices tend to sound full around 250 Hz, whereas male voices sound full around 125 Hz.
Fundamental The lowest frequency in a complex sound wave.
Funk A type of popular music combining elements of jazz, blues and soul and characterized by syncopated rhythm and a heavy, repetitive bass line.
Gain Also known as 'Amplification', the ratio between the input voltage and the output voltage, or between the input power and the output power. Gain is usually expressed in decibels.
Gangsta Rap A form of rap music characterized by violent, often degrading lyrics.
Gap The thin break in the electromagnet that contacts the tape in a tape recorder head.
Gate To shut down a signal when its volume falls below a given value. Also a short name for 'Noise gate, a processor used to eliminate noise between notes.
General Midi A superset of the MIDI standard that describes sound mappings in MIDI instruments. Music written and sequenced for General MIDI should play back with the same instrument sounds on any General MIDI (GM) sound source.
Generation A copy of a tape. An original master recording is referred to as a first generation tape. If you make a copy of the original master tape, you have a second generation tape. Copy the second generation tape and you have a third generation tape. With audio tape, each generation suffers degradation through increased noise and hiss. Digital tape generations created in the digital domain generally experience little or no degradation.
Generation Loss The degradation of signal quality that occurs with each successive generation of audio tape. The generation loss is usually in the form of increased hiss, distortion and noise.
Genre a general type or kind of music
Gentle A sound having harmonics in the upper midrange and high frequencies which are not boosted, or may be slightly attenuated or cut. Gentle is similar to mellow.
Glare Sound which is too bright, trebly or edgy.
Glassy Sound which is too bright and has an unpleasant high frequency response.
Glissando a sliding movement from one pitch to the other
Gobo Short for 'go-between', a portable partition used when recording to prevent sound leakage between adjacent microphones.
Gospel a type of religious popular music sung largely in black churches
Grainy Sound which suffers from harmonic distortion or has been digitally converted using a low sample rate or inferior A/D converters. It has the overall effect of making music sound like it has been separated into 'grains' of sound, lacking warmth and fluidity.
Grand Staff the combined treble and bass clefs
Graphic Equalizer Also known as graphic EQ, a type of equalizer with a horizontal row of faders; each fader's position indicates the frequency response or frequency correction of the equalizer within a preset frequency range; viewing all faders gives a graphic representation of the desired frequency response. Graphic equalizers can be used as a special effect or to flatten monitor speaker response for the current listening environment.
Groove Quantize A sequencing quantization method that uses a performance template instead of an absolute value to alter the rhythmic characteristics of a sequence. Usually involves preset grooves (i.e. funk, swing, etc.) or uses one rhythmic sequence as a model for quantizing another sequence.
Ground The zero signal reference point for a group or system of audio components. Also, a short term for 'Earth ground'.
Ground Bass a repeated bass line over which melodic variations occur
Ground Buss A heavy plate (typically copper) used as a common connection point to which audio equipment is grounded.
Ground Loop A loop formed when unbalanced circuits or components are connected together via two ground paths (the connecting cable shield and the power ground), causing unwanted hum in the system.
Grounding The act of connecting audio or electrical components to ground. When components are grounded correctly, there is no voltage difference between equipment chassis.
Group Also known as 'Submix', a smaller mix of tracks or instruments feeding a larger or master mixing board. Typical groups include a vocal group, keyboard group and percussion group.
Growl As applied to the bass guitar, a boost or peak in the frequency response around 600 Hz.
Grunge The label applied to a rock form featuring distorted guitars, whining vocals and flannel-shirt-wearing band members. Popularized by and associated primarily with Seattle bands such as Nirvana and Alice in Chains.
Grungy A sound or track with an abundance of harmonic distortion.
GS An extension to the General MIDI standard that describes tone editing parameters, effects and an enhanced instrument set.
Guard Band The space or extra track between tracks on a multitrack tape machine or tape head, whose purpose is to prevent crosstalk between recorded tracks.
Guitar Tablature A system of reading and writing guitar music (abbreviated to TAB).
Half Beat A beat twice as long as a quarter beat.
Half Step the closest pitch above or below any given pitch
Half-Track An audio tape track recorded on half the width of the recording tape. A half-track recorder records two tracks concurrently in the same direction for stereo recording.
Hard A sound or track which has too much upper midrange (around 3 kHz) combined with a good transient response.
Hard-Disk Recording Recording audio digitally to a computer hard drive or to a dedicated hardware device.
Harmonic An overtone at a frequency that is a whole number multiple of the fundamental frequency.
Harmonize To bring two or notes together in harmony.
Harmonizing the ability to invent a vocal line that will compliment a melody as one is singing
Harmony vertical blocks of different tones which sound simultaneously
Harmony Two or more notes sounding simultaneously.
Harsh Sound which has peaks in the upper midrange area (about 2 to 6 kHz) of the frequency response. Harshness can also be caused by too much phase shift from the low-pass filter in a digital recorder.
Hass Effect Also known as the precedence effect, this effect describes our ability to perceive the location of a sound source based on the relative level and arrival time of the sound in each ear. This phenomenon was first discovered by Helmut Hass.
Head In a tape recorder, the electromagnet that plays back what has been recorded on tape, records audio onto tape, or erases signals already on the tape.
Head Gap Also known as simply 'Gap', The thin break in the electromagnet that contacts the tape in a tape recorder head.
Headphones A transducer, worn on the head, that covers or surrounds both ears which converts electrical audio signals to sound waves, used for monitoring or recreational listening.
Headroom A margin of audio safety between the current signal level and the maximum signal level possible without introducing distortion. Headroom is usually measured in decibels. When referring to a tape recorder, headroom is the difference between the standard operating level (0VU on the VU meter) and a level causing 3 percent total harmonic distortion. You can increase high frequency headroom by recording audio tape at higher speeds.
Headstock The part of a guitar situated on the end of the neck which houses the machine heads.
Heavy A music track or sound with good low-frequency response below 50 Hz. It suggests an object of great mass or power, such as a jet or thunder.
Heavy Metal A ponderous rock form characterized by brittle, flashy guitar work, unnaturally high-pitched male vocals and an adolescent fascination with the darker side of human experience. Born in the late 1960s of bands such as Deep Purple and Black Sabbath, heavy metal is currently associated with bands such as Metallica and Soundgarden. Also called metal and speed metal.
Hertz Vibrations or cycles per second, abbreviated 'Hz', a measurement of the frequency of a vibrating object. If you play the open A string on a concert-tuned guitar, the string's tone is at 110Hz, which is 110 vibrations per second. The human range of frequency perception, on average, is roughly 20 Hz to 20,000 Hz.
Heterophony musical texture that occurs when performers play or sing the same melody simultaneously, but in different ways
High-Pass Filter Also known as a 'Low-cut' filter, a filter that passes frequencies above a given frequency and cuts frequencies below that same frequency.
Hip-Hop The cultural context of rap music found in the urban style of dress, speech and art.
Hollow A sound, recorded track or mix which has too much reverberation or a dip in the midrange frequency response. Also, too much spaciousness or room ambiance.
Homophonic Texture a texture in which a melody is supported by chords
Honky A track or entire mix which sounds the way your voice does if you cover your mouth with an object. Honkiness can be caused (or achieved) by a peak in the frequency response around 500 to 700 Hz.
Hook a repeated motive that accompanies the words to the title of a popular song
Hot Recording signals to tape at a high level, causing a mild distortion or tape saturation to occur, used as an effect. Hot can also refer to the conductor in a mic cable which has a positive voltage on it at the moment sound pressure moves the diaphragm inward. Hot is also used to describe a chassis or circuit that has a potentially harmful voltage on it.
Hum An undesired low-pitched sound (at around 60 Hz and its harmonics) that can be heard along with the audio signal.
Hymn a strophic song sung within a religious service by the congregation
Hypercardioid Microphone A directional mic with a polar pattern that has 12dB attenuation at the sides, a 6dB roll-off at the rear, and two points of maximum rejection at 110 degrees off-axis.
I/O An abbreviation for Input/Output for data flow.
Idler Wheel Also known as a 'Pinch roller', in a tape recorder transport, the rubber wheel that traps the tape between itself and the capstan, so that the capstan can move the tape forward.
IMA An acronym for International MIDI Association. A member-supported MIDI information network.
Image The illusory sound field located between two stereo speakers.
Imitation the restatement in succession of identical musical material in two or more parts
Impedance The complex sum of resistance and reactance. The opposition or resistance of a circuit to the flow of alternating current.
Improvisation spontaneous musical invention
Incidental Music music that occurs in connection with a drama
Incomplete Cadence a resting point at the end of a musical phrase that does not sound complete, because the pause is on the dominant seventh chord
Input The connection going into an audio device or computer. In a mixing board, a connector for a microphone or other signal source.
Input Module In a mixing board, the group of controls affecting a single input signal, possibly including a fader, equalizer, trim, effect sends, cue send, solo, and bus assignment controls.
Input Section Refers to all of the input modules of a mixing board.
Interval the distance in pitch between two notes
ISO An acronym for International Standards Organization. An international organization that controls data communications standards, as well as a number of other standards.
Jack A receptacle-type connector for audio signals into which a plug or other input is inserted. The plug is the 'male' connector and the jack is the 'female' connector.
Jam Sync The ability of a sync box to continue to read SMPTE time code even when the time code on the tape is corrupted.
Jazz American music born in the early part of the century from African rhythms and slave chants. It has spread from its African-American roots to a worldwide audience. Jazz developed from early ensemble improvisation to big band swing to the soloing brilliance of bop to thorny atonality and back to the current rearticulation of melody and harmony.
Jazz a style of American dance music originated in the South by black Americans; it is characterized by strong, prominent meter, improvisation, and dotted, or syncopated patterns
Jitterbug a fast dance of the 1940s to swing music
Key the tonality of a composition
Key Signature designation of sharps and flats at the beginning of a composition to indicate its tonality
Keyboard Controller A keyboard instrument that transmits MIDI data, but has no onboard sounds.
Keyboard Workstation A keyboard that typically includes an internal sequencer, effects processor, and multitimbral sound module.
Kilo A unit of measurement prefix meaning one thousand, and commonly abbreviated 'k'. A kilogram is a weight of one thousand grams and 1 kilohertz (1 kHz) is a frequency of one thousand hertz.
Largo very slow
Leader Tape Plastic or paper tape (without the oxide coating) used for spacing or absolute silence between takes or songs.
Leadering Describes the process of manually splicing leader tape between program material on an audio tape.
Leakage Also known as 'Bleed' or 'Spill', the overlap of an instrument's sound into another instrument's mic.
Led Indicator A recording level indicator using one or several light emitting diodes, or LEDs.
Lede An abbreviation for 'Live End, Dead End', referring to acoustical treatment in the control room, in which the front half of the control room (around the mixing board) is deadened with acoustical tile to prevent early reflections from coloring the sound, while the back section of the room is left 'live', to reflect sound back to the mixing area.
Legato smooth articulation
Level The degree of strength of an audio signal measured as power, voltage, or sound pressure level.
Level Setting Adjusting the amount of signal sent to an input channel of a mixer or to the record head of a tape recorder. The amount of signal is usually monitored visually through the use of an LED meter, VU meter, or other indicator.
Librettist the author of the libretto
Libretto the complete book of words for an opera, oratorio, cantata, operetta, or musical
Limiter A signal processor whose output is constant when the input signal exceeds a designated level. You can make a compressor into a limiting device by setting the compression ratio to 10:1 or greater, and by setting the threshold just below the distortion point of the device following the compressor in the signal path. Limiting is most useful for preventing damage to hearing (in-ear monitors), or distortion from signal peaks or transients.
Line Level In semi-pro or home devices (unbalanced), a signal whose level is at -10dBV (0.316 volt). In professional gear (balanced), a signal whose level is at +4dBm (1.23 volts).
Lip Synching moving one's lips to music that has been prerecorded
Live Occurring in person, or in real time. Also applies to sound which has reverberation.
Live Recording A recording made at a club, concert hall, stadium, or other venue with an audience. Also refers to a recording made with a band or group playing all together, without the use of overdubbing.
Localization The ability of the human ear and brain to discern the direction of a real or pseudo sound source.
Loundspeaker A transducer that changes electrical energy (the signal source) into acoustical energy (sound waves) that you can hear.
Low-Pass Filter Less commonly known as a 'High-cut filter', a filter that does not alter frequencies below an established frequency and cuts frequencies above that same frequency.
Lows Bass sounds or other low frequency sounds.
Lyricist the writer of lyrics
Lyrics the words of a song
Machine Heads Used for tuning up each string and housed on the headstock (sometimes referred to as tuning heads or tuning keys).
Madrigal a non religious vocal form in several parts
Magnetic Recording Tape A recording medium made of magnetic particles suspended in a binder and coated on a long strip of thin plastic.
Major Scale scale built as follows: two whole steps, half step, three whole steps, half step
Major Triad chord built on a major third (bottom) and minor third (top)
Mambo an Afro Cuban dance in 4/4 time with heavy accents on two and four
March music with a steady beat in 2/4, 4/4, 6/8 time, suitable for a parade or procession
Mariachi a Mexican instrumental ensemble consisting of violin, trumpet, and various guitars
Mask To cover up one sound with another sound. To make it difficult or impossible to hear a sound by playing another sound in the same frequency range at a louder volume.
Master When syncing two devices together, the controlling device becomes the master and the other device becomes the slave. The slave only responds to commands from the master; it does not also control the master. When syncing a sequencer to tape, the tape deck usually acts as the master and the sequencer becomes the slave.
Master Fader A volume control that adjusts the level of all program busses at the same time.
Master Tape The final mix or completed tape used as the duplication source for CDs and tapes.
Mdm An acronym for Modular Digital Multitrack. Examples include the original Alesis ADAT and Roland DA-88. MDMs typically allow multiple machines to be connected to increase the number of tracks available.
Measure the division of beats into set groups; a measure is denoted by a bar line
Melismatic a melody in which each syllable of text is set to several pitches
Mellow a sound or recorded track with reduced high frequencies, not edgy.
Melody a succession of musical tones
Melody A succession of musical notes played one after another (usually the most recognizable tune of a song).
Memory Integrated circuit chips used to temporarily or permanently store digital data, such as computer data or digital audio.
Memory Rewind A function of some tape recorders to automatically rewind the tape to a designated position. The tape recorder stores the tape counter position in memory and will return to that position when the memory rewind button is pressed.
Merge A unique ability of hard disk recording systems. Similar to audio bouncing, except it is not necessary to have open, available tracks. For example, in a four track system, all four tracks can be mixed to two, thus freeing up two additional tracks.
Meter A device that indicates signal level strength. Meters are also used to show current, voltage and resistance.
Meter the organization and grouping of musical beats
Mezzo medium
Mezzo Forte (Mf) medium loud
Mezzo Piano (Mp) medium soft
Mezzo-Soprano one who sings in the lower part of the soprano range
Mic An abbreviation for microphone. Also, the act of picking up or recording an audio signal with a microphone.
Mic Level The level or voltage of a signal typically produced by a microphone, about 2 millivolts.
Microphone A device that converts sound into an electrical signal. Common microphones include cardioid, ribbon, stereo, omnidirectional and condenser.
Microphone Technique The choosing and placing of microphones to pick up sound sources in order to achieve the desired sound.
MIDI An acronym for Musical Instrument Digital Interface. A method of communication between computers, mixers, musical instruments and accessories consisting of a set of messages that can represent musical performance, mixing movements, or patch data. If a keyboard is hooked to a computer, using MIDI, a computer sequencing program is capable of recording a musical performance.
Midi Channels Electronic "highways" for communicating with MIDI instruments. The original MIDI spec called for 16 separate channels. However, multi-port devices now exist that allow for more channels.
Midi Controllers Performance characteristics within the MIDI standard. Characteristics include volume, modulation, panning, etc. Most sequencers allow recording and editing of controller data.
Midi Cue Sheet A list of MIDI events that have to be transmitted at specific times. The MIDI events typically consist of note-ons, controller changes, or program changes. The times as usually specified as SMPTE times that are given in hours, minutes, seconds, frames, and sometimes sub frames (1/80 of a frame).
Midi Merging When two individual MIDI data streams are brought together and forwarded as a single MIDI event stream. For example, the two data streams might be from two keyboards, or a single keyboard and a foot controller, and you may wish to record the sum of the two into a sequencer.
Midi Patch Bay A patch bay wired with MIDI cables that controls the routing of messages to and from all MIDI devices in a studio.
Midi Time Code Also known as 'MTC', it is the MIDI equivalent to SMPTE. SMPTE timing data can be converted to MIDI time code messages that can be sent to a sequencer for synchronization purposes.
Midi Timing Byte Message As set forth in the MIDI standard, one MIDI timing byte is sent 24 times every quarter note. Therefore, if the tempo of a sequenced song speeds up, MIDI timing data is sent at a faster rate. MIDI timing bytes contain no indication as to where in a song they occur; they are similar to the tick of a metronome. With MIDI, location within a song is given by a song pointer message.
Mike An older, less-used abbreviation for microphone. Also, the act of picking up or recording an audio signal with a microphone.
Milli- A metric system prefix meaning one thousandth, commonly abbreviated as 'm'. One millisecond is 0.001 of a second.
Minor Scale scale built as follows: whole step, half step, two whole steps, half step, two whole steps
Minor Triad chord built on a minor third (bottom) and major third (top)
Minuet a slow French dance in triple meter
Mix To combine two or more audio signals or MIDI data streams into a single audio signal or data stream. A stereo mix combines two or more audio signals into a left-right pair of audio signals. Mix can also refer to the control on an effects processor that controls the amount of effect versus the amount of unprocessed signal sent to the output of the processor.
Mixdown The process of playing pre-recorded tracks (audio or digital) and/or 'virtual' MIDI tracks through a mixing board combining the signals, and sending the result to another tape deck or digital recorder. A typical mixdown is done in stereo.
Mixed Meter changing meter
Mixer A device that combines and controls the levels of individual audio signals. A MIDI mixer, combines, merges, or filters the data streams of two or more MIDI cables and sends the resulting MIDI stream down another MIDI cable.
Mixing Console Also called a 'Mixing board', a large mixer with additional functions like EQ, panning, effect sends, soloing, muting, trim, etc.
Mma An acronym for MIDI Manufacturers Association, a manufacturers trade organization that develops technical standards for MIDI.
Mmc An acronym for MIDI Machine Control, a way for software to remotely control hardware (tape deck transports) via MIDI. Tape decks must support MMC with a MIDI to tape transport control interface.
Modal based on a diatonic scale other than major or minor
Modem A data communications device whose name derives from its function: modulator/demodulator. The modem converts digital signals from a computer to analog signals (modulation) for transmission over telephone lines, and vice versa (demodulation).
Moderato moderate tempo
Modulation changing from one key to another in a composition
Monaural Listening or monitoring with one ear.
Monitor A pair of stereo loudspeakers in a control room or a set of headphones, used to assess sound quality and balance. On stage, a floor mounted loudspeaker with a mix appropriate to the musician in front of the speaker. For example, if a singer wishes to have a monitor mix which is bass-heavy, their monitor can deliver a mono mix which includes boosted bass frequencies.
Monitoring Listening to an audio signal with a monitor.
Mono An abbreviation for monophonic.
Mono-Compatible A stereo program which can be safely combined into a single channel of audio without experiencing phase cancellation, or altering the tonal balance or frequency response.
Monophonic Refers to a single channel of audio.
Monophonic Texture a single melodic line with no accompaniment
Motive a short, distinctive musical pattern used by composers as a building block
Movement one part of a larger musical composition; like a chapter of a book
Moving-Coil Microphone A type of dynamic microphone in which the conductor is a coil of wire moving in a fixed magnetic field. The coil is attached to a diaphragm which vibrates when sung or shouted into.
Muddy Sound which lacks clarity, exhibits a smeared time response, or has weak harmonics. Also used to describe a mix where the individual instruments are overlapping each other's frequency range.
Muffled A track or mix which sounds as if the loudspeakers were covered with a blanket. Characterized by a weak upper midrange or weak high frequency response.
Multi-Timbral Capable of producing different sounds (timbres) at the same time.
Multiple-D Microphone A type of directional microphone having minimal proximity effect due to multiple sound path lengths between its front and rear sound entry points.
Multiprocessor A signal processor or type of computer capable of performing several different processing functions. In the case of the computer, the functions are done simultaneously; in the case of the signal processor, the functions are performed in series, yet appears to a musician as if all functions or effects are happening at the same time.
Multitrack A tape recorder or digital recorder having more than two tape tracks.
Music Critic a person who judges the quality of a musical performance
Musical Expression the particular feeling conveyed by a performance
Musical Style the distinct manner or character of musical expression
Mute To silence an input signal on a mixing board (usually by pressing a mute switch) by severing the connection between the input module's output from the direct out and the master out. Muting is used to help create quieter final mixes by eliminating noise from temporarily or permanently unused tracks.
Namm An acronym for the National Association Of Music Merchants, a not-for-profit association which provides a variety of tangible services to retail and commercial members of the music products industry.
Nasal A vocal sound that seems as if the singer has his nose pinched, which can be caused by the mic positioned too close to the singer's mouth. A nasal, or honky instrument sound can be caused by a peak in the frequency response around 600 Hz.
Natural a mark that cancels a sharp or flat
Near-Coincident A stereo miking technique where two mics are angled apart in a symmetric fashion, and spaced a few inches apart.
Near-Field Monitoring A monitor speaker arrangement in which the speakers are situated very close to the listener, to reduce the effect of the room acoustics when tracking or mixing.
Neck The part of a guitar which houses the fret board.
New Age Modern music characterized by quiet improvisation on the acoustic piano, guitar and synthesizer and a dreamy, relaxing sound.
New Romanticism a style of contemporary art music that relies on dramatic effects
New Wave An emotionally detached style of rock music characterized by a synthesized sound and a repetitive beat.
Noise Unwanted sound, such as hum from the power system or hiss from a tape recorder.
Noise Gate A device or circuit used to reduce or eliminate noise between notes or musical phrases.
Noise Reduction System A device used to reduce or nearly eliminate hiss from the signal introduced as a by-product of the recording process. When used with tape-based systems, certain processors encode the tape, and decode it again on playback. Single-ended noise reduction processors simply reduce noise without encoding.
Non-Destructive Editing Edits that do not alter primary recordings. Typically these edits, if they are performed on a hard-disk recording system, are stored as new files, allowing for multiple levels of undo.
Normalization A process that increases the overall level of an audio recording to maximize its output and reduce system noise.
Nylon String Guitar An acoustic guitar which has three nylon strings.
Obligato a subordinate melody above a main melody
Octave The interval between any two frequencies where the upper frequency, 880 Hz for example, is twice the lower frequency, say 440 Hz. The frequency of the open A string on a guitar is at 440 Hz and the frequency of the note A, one octave up on the A string 12th fret, is at 880 Hz.
Off-Axis Not directly in front of a microphone or speaker, the axis being the center of the mic or speaker.
Off-Axis Coloration The alteration of tone quality for sounds arriving off-center to the microphone.
Offbeat emphasis on the weak beats in a measure
Omnidirectional Microphone A mic that is equally sensitive to sounds coming from all directions.
On-Location Recording A recording made outside the studio, in a club, concert hall, or other venue with a live audience.
Open A string played with no left hand fingers fretting any note.
Open Tracks On a multitrack tape or digital recorder, the unused tracks.
Opera a staged drama sung with orchestral accompaniment
Opus work; a number indicating the order in which compositions were composed
Oratorio a large vocal work similar to an opera; but it is neither staged nor acted out
Orchestra a large musical ensemble consisting of string, woodwind, brass, and percussion instruments
Orchestration the process of scoring for an orchestra
Ostinato a rhythmic or melodic passage that is repeated continuously
Out-Take An entire recorded performance or a portion of a recorded performance that is to be discarded and not used.
Outboard Equipment Signal processors or other effect devices that are not internal to the mixing board.
Output A connector in an audio device from which the signal exits into a cable. An output on a MIDI device is called a MIDI output, or MIDI out, and is connected to another device's MIDI in.
Overdub To record a new musical part on an unused track while listening to the previously recorded tracks.
Overhang The continuation of a signal at the output of a device or mixer after the original input signal has faded.
Overload The distortion resulting from a signal exceeding a input's maximum input level.
Overtone A frequency component that is higher than the fundamental frequency in a complex sound wave.
Overture an extended orchestral introduction to an opera, ballet, or similar type of musical presentation
Pan An acronym for Performing Artists Network, an information network that offers a subscription and allows you access to the PAN bulletin board information system.
Papery A kick drum sound characterized by a boost between 300 and 900 Hz.
Parametric Eq Also known as parametric equalization, a type of equaliztion where the range of frequencies affected by cuts and boosts in level is adjustable.
Patch A set of parameters and their values on an effect unit or synthesizer that create a specific sound. Patch originally referred to the cables, or patch cords, that were used to connect components from early synths; it now refers to a named or numbered set of parameters that can usually be altered and saved.
Patch Bay A unit that allows the user to reconfigure audio equipment connections without having to access to the rear of the unit. All inputs and outputs to the audio equipment are connected to the back of the patch bay, and patch points are provided at the front of the unit to redirect audio using patch chords.
Peak Amplitude On a graph of a sound wave, the sound pressure of the waveform peak. The amplitude of a sound wave when measured using a meter is 0.707 times the peak amplitude.
Pentatonic Scale a five tone scale
Perceptive Listening the ability to discern musical characteristics
Percussion instruments that derive their sound from being shook or struck
Phasey A sound that sounds out of phase, resulting in a directionless quality and/or a flanging effect. It can be caused by picking up sound from more than one microphone, or when recording an instrument using a mic close to a surface.
Phrase a complete musical idea
Pianissimo (Pp) very soft
Piano (P) soft
Pickups An electromagnet housed underneath the strings on an electric guitar which produces a signal to be amplified by a guitar amplifier.
Piercing A strident, shrill sound which is hard on the ears. A piercing sound usually has peaks in the frequency response around 3 to 10 kHz.
Pinched A sound or track with a very narrow frequency range, or a sound with peaks in the frequency response in the midrange or upper-midrange area.
Pink Noise A mixture of all frequencies between 18Hz and 1kHz.
Pitch the highness or lowness of sound based on frequency of vibration
Pitch To Midi Converter A device that detects the pitch from a microphone or guitar and translates the information into corresponding MIDI messages (note on, pitch bend, etc.).
Pizzicato plucking the string with the finger rather than bowing
Plectrum A small triangular shaped piece of plastic used for striking the guitar strings with the right hand.
Polka a rapid dance in duple meter
Polyphonic Synth A musical instrument in which two or more independent voices are capable of sounding at the same time.
Polyphonic Texture a texture in which several melodies sound at the same time
Polyphony The maximum number of notes (simultaneous pitches) a unit (keyboard, sound module, etc.) can produce at the same time.
Pop Music American music that has wide appeal; commercial
Powerful A sound with good bass response below about 60 Hz.
PPQ An acronym for Pulses Per Quarter Note. Sometimes abbreviated at PPQN.
Presence The aural characteristic of feeling that the instrument is in the listening room, or the feeling of being "up front". You can usually achieve presence or clarity with most instruments by boosting the response around 5 kHz, or between 2 to 5 kHz for low instruments, such as bass and kick drum.
Presence Range The area of the audio frequency spectrum which affects the perceived presence of the sound.
Presto Very fast
Puffy A music track or sound sample with a bump or peak in the response around 500 Hz.
Punchy A sound or track with a good reproduction of dynamics, having good transient response. Bass sounds can be boosted at 200 Hz, and other instruments can be boosted at around 4 to 6 kHz to add punchiness.
Punk A rock form characterized by aggressive volume, short, angry vocals and often bitter political or hopeless emotional content. It was born as a reaction to the bland, corporate rock of the 1970s. Early exponents of punk include Sex Pistols, The Clash, Ramones and Buzzcocks. Punk's recent revival is attributed to the dominance of sound-alike “alternative” bands.
Quantization The correction of rhythms in a MIDI sequence.
Quarter Beat A sub division of time in music twice as long as an eighth beat.
Quartet four voices or instruments
Quintet five voices or instruments
Rack A wooden or metal cabinet with standardized dimensions and hole spacings used to mount audio equipment. The rack holes are spaced exactly 19 inches apart, side to side.
Rack Mount Unit Any unit that conforms to the 19-inch E.I.A. (Electronic Industry Association) specifications for rack hole alignment.
Radio Frequency Interference Also known by the abbreviation 'RFI', the presence of electronic waves at AM or FM frequencies in audio cables or equipment, causing unwanted noise in the audio signal.
Raga A traditional form in Hindu music, consisting of a theme that expresses an aspect of religious feeling and sets forth a tonal system on which variations are improvised within a framework of progressions, melodic formulas and rhythmic patterns.
Ragtime A style of jazz with elaborately syncopated rhythm in the melody and a steadily accented accompaniment.
Ram An acronym for Random Access Memory, memory that can be read from and written to (as opposed to ROM). Data stored in RAM is lost when the power is turned off.
Range The distance between the highest and lowest pitches
Rap Urban, typically African-American music that features spoken lyrics, often reflecting current social or political issues, over a background of sampled sounds or scratched records.
Raspy A harsh sound, like a rasp. Also used to describe vocals with excessive sibilance or sounds with a piercing quality, which can be caused by peaks in the frequency response at about 6 to 7 kHz.
Real Time Recording Recording notes or other MIDI performance data into a sequencer at the tempo at which it was performed. Also, recording and mixing a performance directly to two-track tape or lacquer disk.
Recapitularion the section of a sonata form that is basically a repetition of the exposition
Recitative a speech like style of singing used in opera, oratorio, and cantata
Record To store a visual, MIDI, or audio event in a permanent form.
Record Equalization Adjustments to specific frequencies applied to the signal by a tape recorder to compensate for certain frequency losses.
Record Head The head in a tape recorder that puts the audio signal on tape by magnetizing the tape particles in a pattern corresponding to the signal.
Reflected Sound Those sound waves that reach the listener or audience after being reflected from one or more surfaces (walls, ceilings, floors, etc.)
Refrain a chorus (melody and text) that is repeated at intervals in a song, especially following each verse
Regeneration The process of taking incoming SMPTE, which may have shaping problems or dropouts, and generating new, perfect SMPTE, that is perfectly time-locked to old SMPTE. This process is called regeneration because instead of being generated for the first time, the SMPTE is being "regenerated" from another SMPTE source. Also, the feeding of the output of a delay device back into its input to create multiple echoes.
Reggae Popular music of Jamaican origin having elements of Calypso, soul and rock and characterized by a strongly accentuated offbeat.
Regions User-defined sections of audio that can be edited, looped, or processed.
Register the high, middle, or low section of the vocal or instrumental range
Release The final portion of a sound's envelope in which the sound falls from its sustain level back to silence.
Release Time Also known as 'Recovery time', the time it takes for the gain to return to normal from its processed level in a signal processor. Also, pertaining to a synthesizer, the time it takes for the sound to go from its sustained level to silence.
Remix To do another mixdown with different edits or different mixing parameters.
Remote Recording Also known as 'On location recording', a recording made outside the studio, in a room, club, or other venue where live music is usually performed.
Renaissance the period in Western Europe from 1400-1600; the style of music from this period
Repeat Sign Two dots placed before a double line indicating the repeat of a section of music.
Repertoire an inventory of compositions mastered and performed by a musician or ensemble
Requiem Mass a Mass for the dead
Resistance The opposition of a circuit to the flow of current . Resistance is measured in ohms, and can be calculated by dividing the voltage by current.
Resolution the succession of a dissonant sound to a consonant sound
Return-To-Zero A function on a tape recorder that rewinds the tape to the zero counter position on the tape. The zero counter position can be anywhere on the tape, since it is established whenever the user resets the counter.
Reverberation Often shortened to 'Reverb', the persistence of sound in a room or other space, even after the original sound has ended, caused by many sound reflections that decrease in intensity with time. The reflections, or echoes, are so closely spaced in time as to merge into a single continuous sound. The reflected sound eventually decays completely by being absorbed into the surfaces of the room. Reverberation in modern recordings is commonly generated by signal processors, rather than acoustically.
Reverberation Time The time it takes for reverberation to decay to 60dB below the original level. Reverb time is commonly abbreviated to RT60, and is usually measured at 500Hz.
Reverse Echo An echo that precedes the sound that caused it, building up from silence into the original sound. Reverse echo can be created either electronically (using a signal processor), or by reversing a tape track, adding the echo effect, and reversing the tape back to the original direction.
Rhumba a ballroom dance based on the Afro Cuban rumba
Rhythm A sequence of events played with the right hand on a guitar which gives a piece of music a distinct beat.
Rhythm And Blues The all-encompassing term used to describe the African-American wellspring of postwar popular music. From rhythm and blues has come rock, soul, funk, rap and regional and stylistic offshoots. Critics consider rhythm and blues's birth to coincide with the decline of big bands and jazz's turn toward the bop emphasis on soloing. Rhythm and blues retained an emphasis on vocals while adding a more pronounced beat characteristic of the blues.
Rhythm Notation A system of reading and writing music which shows rhythm.
Rhythm Tracks The generic name for the recorded tracks of the rhythm instruments (rhythm guitar, bass, drums, keyboards).
Ribbon Microphone A dynamic mic in which the conductor is a long metallic diaphragm (ribbon) suspended in a magnetic field.
Rich Tracks or sounds having euphonic distortion made of even-order harmonics (harmonics sometimes added by aural exciters). A rich sound is also frequently described as 'full'.
Ride Gain To manually adjust the volume of a microphone or mixer channel,. raising the fader when the signal is quiet, and lowering the fader when the signal is loud, in an attempt to reduce the dynamic range of the signal. Using a compressor is an automatic way to solve the same problem.
Riff A common word for a musical motif or phrase, especially popular with guitarists and keyboard players.
Ritardando gradually slow down
RJ11 Standardized 6 pin telephone interface in North America. Also used in most telecommunications equipment worldwide.
Rock Perhaps the most popular form of 20th-century music, a combination of African-American rhythms, urban blues, folk and country music of the rural South. It has developed since the early 1950s into hundreds of subgenres, each with its own audience, record labels and radio formats.
ROM An acronym for Read Only Memory, memory that can only be read and cannot be used for temporary storage. ROM retains its contents even when power is turned off.
Romantic Music music written from 1825 - 1910 in which composers were inspired to express emotion through their music
Rondo an instrumental form based on an alternation between a repeated section and contrasting episodes; e.g. ABACA etc.
Round A sound with a high-frequency rolloff or dip. A track or sound which is not trebly or edgy.
Round a composition in which the same melody is started at different times and sounded together
Rubato robbed time; the free treatment of meter in a performance
Running Gag a visual or spoken joke which is varied and repeated throughout a show
Sacred religious music
Safety Copy A duplicate of the master tape or disc, to be used if the master tape or disc is lost or damaged.
Salsa A popular form of Latin-American dance music, characterized by Afro-Caribbean rhythms, Cuban big-band dance melodies and elements of jazz and rock.
Samba an Afro Brazilian dance in duple meter that is faster and jazzier than the tango or rhumba
Sampling The recording of a short sound event into a sampler or computer. The audio signal is converted into digital data representing the signal's waveform, and is then stored onto magnetic disk for editing and playback.
Saturation Overload of a magnetic tape. The saturation point is the point at which an increase in magnetizing force does not cause a corresponding increase in magnetization of the tape oxide particles.
Scale a sequence of tones arranged in rising pitches
Scat Singing a style of vocal jazz improvisation in which nonsense syllables are used to imitate the sound of a musical instrument
Scherzo a movement in triple meter; usually the third movement of a sonata, symphony or quartet; introduced by Beethoven to replace the minuet
Score a notation showing all the parts of a musical composition
Scoring composing music expressly for film or TV
Scratch Vocals Vocal performances that are typically done as the rhythm instruments are being recorded so that the musicians can get a feel for the song and keep track of where they are in the tune. If the scratch vocals are recorded, they can contain leakage from other instruments, in which case they are usually deleted or erased. At times, the scratch vocals are so good they are kept as the main vocal tracks of the song.
SCSI An acronym for Small Computer System Interface, a communications system that loads massive amounts of sound data into samplers, or data into computers at extremely high speeds, then returns the data back out to removable media hard disks and optical drives for storage.
SDS An acronym for Sample Dump Standard, a standard for transferring samples via MIDI.
Secular music without religious associations
Sensitivity The output of a microphone in volts for a given input in sound pressure level. Sensitivity can also mean the sound pressure level (SPL) a loudspeaker produces at one meter when driven with one watt of pink noise.
Sequence repetition of a melodic idea at a higher or lower pitch
Sequencer A dedicated device that records a series of synthesizer note parameters (via MIDI) into a storage device for subsequent editing and playback. Or, a software program that records note data onto a computer's disk drive. Most sequencers can also record system exclusive messages, MIDI mixer or recorder data, and store bulk dumps of parameter data from signal processors. During playback, the sequencer triggers the synthesizer sound generators and sample playback devices as well as reproducing mixer movements and controlling signal processing programs and parameters.
Sharp a symbol that raises a pitch by one half step (#)
Shelving Equalizer An equalizer that applies a constant boost or cut to a signal either above or below a chosen frequency. The resulting waveform shape resembles a shelf.
Shield A conductive enclosure (usually metallic) around one or more signal conductors, used to keep out electrostatic fields that can cause hum, buzz, or other noise.
Shock Mount A suspension system that mechanically separates a mic from its stand or boom, preventing the transfer of vibrations.
Shuffle A rhythm of which each main beat is divided into three smaller beats (prominent in blues music).
Sibilance In a vocal recording, excessive peaks in the frequency response in the 6-10kHz range, due to an overemphasis of 's' and 'sh' sounds. Sibilance can usually be minimized in a recorded track through the use of a signal processor known as a de-esser.
Sibilant A vocal track with excessive or exaggerated 's' and 'sh' sounds, due to a peak in the frequency response around 6 to 10 kHz. Also known as 'essy'.
Signal A varying electrical voltage that represents sound.
Signal Path The route a signal travels from input to output in a piece of audio gear or in an audio system.
Signal Processor A device that is used to deliberately alter a signal in a controlled manner. Examples of signal processors include reverberation units, digital delays, flangers, equalizers, etc.
Signal-To-Noise Ratio The ratio in decibels between an audio signal voltage and noise voltage. A device with a low signal-to-noise ratio is considered noisy, and a device with a high signal-to-noise ratio is considered clean or quiet, with little background noise accompanying the signal.
Sine Wave The wave form of a sound containing just a fundamental frequency without overtones, commonly referred to as a "pure tone".
Single-D Microphone A type of directional mic having an identical distance between its front and rear sound entry points.
Single-Ended A noise reduction system that only needs to be placed at the output end of the signal chain. Single-ended noise reduction does not involve encoding of the signal, and therefore does not need to be decoded by a device receiving the signal.
Sizzly When describing vocals, a track with excessive or exaggerated 's' and 'sh' sounds. Also used to refer to a cymbal sound with too many high frequencies.
Ska A brisk form of Jamaican-born rock derived from reggae and rock energy. It was popularized in the early 1980s by British “black-and-white” multiracial bands that formed a lighter faction of the punk movement.
Slapback A repetition of a sound approximately 50 to 200 milliseconds after the original sound is heard.
Slave When syncing two devices together, the controlling device becomes the master and the other device becomes the slave. The slave only responds to commands from the master; it does not also control the master. When syncing a sequencer to tape, the tape deck usually acts as the master and the sequencer becomes the slave.
Smeared A sound sample or track lacking detail and clarity. Also a track exhibiting poor transient response or excessive leakage between mics.
Smf An acronym for Standard MIDI File, a file exchange format that allows different sequencer programs to share the same MIDI information.
Smooth Sounds which are not harsh and easy on the ears, due to a nearly flat frequency response, especially in the midrange response. Also used to describe sounds which have a lack of dips and peaks in the frequency response.
Smpte A timing standard (and an acronym) created by the Society of Motion Pictures and Television Engineers. This standard describes how hours, minutes, seconds, and frames are encoded (along with other miscellaneous data) into an audio signal that can be recorded to tape and read back.
Smpte Formats SMPTE time code can be written in several ways, called formats. The formats differ depending on whether the time code is for film, European video, American video or music. Some common SMPTE formats are 24 frames per second, 25 frames per second, 30 frames per second or 30 drop frame.
Snake A multi-pair or multi-channel microphone cable. Also, a multi-pair microphone cable hooked to a connector junction box.
Snap When applied to a snare drum, the attack of the stick on the head, usually around 5 kHz. When describing a kick drum sound, the attack of the beater on the head of the kick drum. To emphasize the snap, you can boost the frequencies around 3 to 6 kHz and/or use a wooden beater.
Soca A West-Indian style of music that is a blend of soul and Calypso.
Soft Sounds or recorded tracks with poor transient response; too mellow or gentle. Sounds in which the peaks seem squashed or smeared.
Solfege A method of singing music that employs syllables (do,re,mi,fa,so,la,ti) to represent pitches, with a single syllable corresponding to a single note.
Solo On an input module to a mixer, a switch allowing you to monitor the selected input signal by itself. All other inputs are muted so you may hear the input in isolation.
Sonata a multimovement composition for solo instrument, or instruments and keyboard accompaniment
Sonata-Allegro Form a large form consisting of exposition, development, and recapitulation; sometimes also including an introduction and/or coda
Song Form ternary form (ABA or AABA)
Song Pointer Message The MIDI message that specifies, to a 16th note, how far into a piece you are. This permits a master device to send a song position pointer to a slave device, such as a drum machine, to begin playing at any point in the song
Song Position Message A message sent by a master device that allows slaves to begin at any point within a sequence or song.
Soprano the highest female voice
Soul The name for a type of rhythm and blues built on elements of gospel and spiritual music. Often, practitioners such as Sam Cooke maintained two careers simultaneously in soul and popular music.
Sound Longitudinal vibrations in a medium in the frequency range 20Hz to 20,000Hz.
Sound Generator A sample-playback module or synthesizer without a keyboard. The sounds are triggered by MIDI signals from an external keyboard, a dedicated hardware sequencer, or a computer sequencing program.
Sound Hole The hole in the front of an acoustic guitar body from which the sound is projected.
Sound Pressure Level Abbreviated SPL, the acoustic pressure of a sound wave, measured in decibels above the threshold of hearing.
Soundtrack a strip along the side of the film which contains optical coding of sound
Source Music music that comes from a visual source
Spaced Pair A method of miking in which two microphones are spaced horizontally several feet apart. The mics are typically aimed straight ahead toward the sound source.
Spacious Conveying a sense of ambiance or room around the instruments. Sounds with noticeable reverberation and early reflections.
SPDIF The consumer standard for digital audio transfers, using RCA-type plugs.
Speaker Also known as a 'Loudspeaker', a transducer that converts electrical energy (the signal) into acoustical energy (sound waves).
Spectrum The output versus the frequency of a sound source, including the fundamental frequency and overtones.
Spiritual a religious song of the American Negro
SPL An abbreviation for 'Sound pressure level', the acoustic pressure of a sound wave, measured in decibels above the threshold of hearing.
Splice To join the ends of two pieces of magnetic tape with adhesive tape. Splice also refers to the taped joint between two sections of magnetic tape.
Splitter A circuit used to divide a signal into two or more identical signals to feed separate inputs. Split signals can then be processed or amplified in different ways.
Spot to determine which scenes in a film should have music
Spot Microphone A microphone placed close to the sound source. Usually spot microphone signals are mixed with signals from more distant microphones to add presence.
Squashed Sound with a very limited dynamic range; highly compressed.
Staccato played in a detached or separated manner, as opposed to legato
Stacking Tracks The technique of recording several performances of a musical part on separate tracks. so that the best portions of each performance can be played in sequence during mixdown.
Staff a set of five lines and four spaces on which music is notated
Standard Midi File A universal MIDI file format, read by almost all MIDI software. Two formats are available--type 0, which is a single track sequence, and type 1, which is a multi-track sequence.
Standing Wave A stationary waveform, created by multiple reflections between opposite room surfaces. At certain points along the standing wave, the direct and reflected waves cancel, and at other points the waves add together or reinforce each other. In a room prone to standing waves, this resonance causes drastic changes in the perceived loudness of sounds at certain frequencies based on where you may be listening.
Stanza the verse of a text
Steely Sounds with an emphasized upper midrange response around 3 to 6 kHz. Also used to describe sound with a peaky, non-flat high-frequency response, or with too many overall high frequencies.
Stem The vertical line in music or rhythm notation which appears above or below a note or rhythm.
Step-Time Recording Recording data into a sequencer one chord or note at a time, choosing the note durations for each chord or note. The sequence can then be played back at a normal tempo.
Stereo Originally an abbreviation for 'Stereophonic', an audio recording and reproduction system with correlated information between two discrete channels, meant to be heard over two or more loudspeakers to give the illusion of sound source localization and depth.
Stereo Imaging The ability of a stereo recording or monitor system to accurately position audio images at various locations between a stereo pair of speakers.
Stereo Microphone A microphone containing two coincident microphone capsules in a single housing for stereo recording.
Strap Used to hold the guitar while in standing position.
Stretto a polyphonic texture in which the imitating voices overlap
Strident A distorted track having unwanted harmonics, adding an edge or raspiness to the overall sound.
Strophic using the same melody for each verse of a song
Strumming A technique where the right hand plays the noted of a chord simultaneously either with down or up strokes.
Style the particular character of a musical composition, performance or historical period
Sub Dominant A music theory term literally meaning the scale degree of four. May refer to a note or the chord based on a note.
Sub Mediant A music theory term literally meaning the scale degree of six. May refer to a note or the chord based on a note.
Submaster A master volume control for an output buss.
Submix A smaller mix within a larger mix. Submixes are typically made for drums, keyboards, and/or effects.
Submixer A small mixer, which can be a separate mixer or contained within a larger mixer, that is used to feed submixed drums, keyboards, effects, etc. to an overall mix.
Supercardioid Microphone A unidirectional microphone that attenuates sounds arriving from the sides and rear, with maximum sound rejection occurring at 125 degrees either side off-axis.
Supply Reel Also known as the 'Feed reel', the reel on the left side of a tape recorder that unwinds during recording or playback.
Sustain The portion of the envelope of a sound in which the level is constant. It can also mean the ability of a sound to continue without decaying noticeably.
Sweet Delicate sounds exhibiting low distortion and a flat high-frequency response extended to the full range of human hearing (up to 20 kHz).
Sweetening The addition of brass, strings, chorus, harp, orchestra, etc. to previously recorded rhythm tracks.
Swing A rhythm in music in which the down beat is felt slightly longer than the up beat (sometimes called a shuffle).
Swing Era roughly from 1935 to 1945
Syllabic a setting of text in which each syllable is sung to one pitch
Sync Short for 'synchronize' or 'synchronous recording'.
Sync Box 1. A box that synchronizes a MIDI sequencer (either computer- or hardware- based) to a tape recorder, so the sequencer becomes a natural extension of the tape deck and does not waste audio tracks. The sync box permits the computer to shuttle forward and backward and stay precisely synched to what is on tape. 2. A unit that translates between the sync messages of MIDI and a special sync signal that is recorded on one tape track.
Sync Stripe A special audio signal recorded to one track on a tape that contains specially encoded digital information. This information can be decoded by a sync box and converted into meaningful MIDI sync information that is then sent to a sequencer.
Synchronization The process of keeping two devices or software systems precisely locked together, typically through the use of SMPTE, MIDI time code, or MC/SPP standards. An example is keeping a sequencer precisely locked to a tape deck, maintaining the same location and speed.
Synchronous Recording The technique of using a record head as a playback head during an overdub session to keep the overdubbed parts in sync with the previously recorded music.
Syncopation accents which go against the steady beat
Synphony a work in several movements for orchestra
Synthesizer A musical instrument (usually with a keyboard) that generates sound electronically, and allows changes to the sound parameters to simulate conventional instruments or to create entirely new sounds.
Synthesizer Programming Creating new sounds, or changing existing sounds in a synthesizer.
System Exclusive Also known as 'Sys Ex', messages that represent unique or proprietary characteristics of devices or instruments.
Tabulature A notation system for stringed instruments based on fingering numbers rather than standard musical symbols.
Tails Out A term describing a reel of tape wound with the end of the audio toward the outside of the reel. Tape stored in this manner is less likely to have audible print-through, since the tape must be rewound before playback. Any print-through that does happen to occur will sound after the original sound (instead of before), which is less problematic.
Take A recorded performance of a song, solo, or part. Many times, several takes are done of the same musical performance and the best one becomes the final product. At times, the best parts of several takes are brought together (digitally, or with tape splicing) to form a composite take.
Take Sheet A paper or computer notepad listing each take by number for each song, along with any notes on effects, performance, etc.
Take Up Reel The reel on the right side of a reel-to-reel tape recorder that winds up the tape as is playing or recording.
Talkback An intercom in the mixer for the producer and/or engineer and producer to talk from the control room and give feedback to the musicians in the studio room.
Tango an Argentinean dance in duple meter with long, gliding steps
Tape Originally a short name for magnetic recording tape, a recording medium made of magnetic particles (usually ferric oxide) suspended in a binder and coated on a long strip of thin plastic, usually Mylar.
Tape Editing The splicing and rejoining of magnetic tape (not digital tape) to insert leader tape, to reorder recorded takes into a new sequence, or to delete entire musical passages.
Tape Loop An endless loop of tape made by splicing a length of tape end to end, used for continuous repetition of several seconds of audio.
Tape Recorder A device that converts an electrical audio signal into a magnetic audio signal on magnetic tape, and upon playback, converts the magnetic signal back to an electrical audio signal. Tape recorder parts include electronics, heads, and a transport to move the tape.
Tearsheet A tearsheet is an entire page from an actual print publication that has carried an advertisement, not just a clip of the ad. Tearsheets clearly show how the ad was produced in the publication, exactly how prominently it was placed on the page in relation to other ads and news, and whether or not competing ads were run on the same page.
Technique the mechanical (motor) skill required to sing or play an instrument
Tempo The speed of a piece of music.
Tenor a high pitched male voice
Ternary a three part form, ABA
Terraced Dynamics dynamic changes which occur suddenly, without gradual transition
Tessitura A musical term meaning the range, from high to low, of a specific voice or instrument.
Texture the character of the different layers of the horizontal and vertical sound
Theme a melody that assumes importance in the development of a composition due to its continued use
Theme And Variations a musical form in which a theme is stated, then varied in a succession of musical statements
Thin A sound or track where the fundamental frequencies are weak, relative to the harmonics. If the fundamental frequencies of an instrument are high, around 300 to 800 Hz for example, and the monitor system has a dip in the 400 Hz area, the instrument may sound thin, even though the monitor system is stronger in the lower range (below 200 Hz) of the frequency spectrum.
Three Quarter Beat A beat which is one and a half times as long as a half beat.
Three-Pin Connector Also known as an XLR-connector, a professional audio connector for balanced audio signals. Pin 1 is connected to the cable shield, pin 2 connects to the signal hot lead and the third pin is connected to the signal return lead. Sometimes equipment is manufactured with pin 2 and 3 reversed, which causes problems when going from a balanced line to an unbalanced line.
Three/Four Time A time signature of three quarter beats in one bar of music.
Threshold In a compressor or limiter, the input level above which compression or limiting takes place. Therefore the level of the audio must be above the threshold setting, or no effect is heard. In an expander or gate, the input level below which expansion or gating occurs.
Through Composed a setting of a text which uses different music for each stanza of a poem
Thumpy A track or sound sample with audible low-pitched thumps, which can be caused by miking an acoustic guitar too closely, or by a guitar with excessive lows around 50 to 80 Hz.
Thunderous A sound with an extremely deep bass, almost rumbling quality, with extended low-frequency response below 60 Hz.
Tie A curved line which shows two notes of the same pitch joined together and played as one with the time value of both.
Tight A track or mix demonstrating good low-frequency transient response and detail. Tight is also used to describe the sound of a damped kick drum. It can also mean the absence of leakage between microphones.
Timbral The property of having tone color, or the distinctness of the sound of an instrument from any other.
Timbre The impression of a sound based upon its harmonic spectrum and envelope, i.e.. the distinctness of a sound that allows a person to differentiate it from other sounds. For example, when you hear a guitar, cymbal, or violin, each has a unique set of harmonics (therefore, tonal quality) that identifies it as a particular instrument.
Time Code A signal used to synchronize two or more tape transports, or a computer to a tape transport. As it applies to video, the signal describes the location on the tape in terms of hours, minutes, seconds and frames. Types of time code include SMPTE and MIDI.
Time Signature A sign at the beginning of a piece of music (looks like a fraction) which shows how many beats in each bar (top number) and how long each beat lasts (bottom number).
Tinny A sound with a telephone-like tone having weak lows and a boosted mid-range, with a very narrow frequency range. The sound seems almost as if it is coming from the inside of a tin can.
Tonal Balance The balance or volume relationships between different regions of the frequency spectrum, including bass, lower midrange, midrange, upper midrange and highs.
Tonality the pitch that is the tonal center, which is the tonic
Tone Color The sound or property of an instrument, as distinct from any other.
Tonic the first pitch of a diatonic scale
Top Refers to both high frequencies (i.e. "the top end") and the beginning of a song ("let's take it from the top").
Tracks Separate locations for recordings, usually containing a single channel of audio or MIDI data. Organizes recordings in a multi-track environment.
Tranparent A track or mix which is clear, detailed, not muddy, and which has a wide, flat frequency response. Also a mix exhibiting very low noise and distortion.
Transcription an arrangement of a piece of music for a voice, instrument, or ensemble other than that for which it was originally written
Transducer A device that converts energy from one form to another, such as a microphone or speaker.
Transformer An electronic component containing two magnetically coupled coils of wire. The input signal is transferred magnetically to the output, without a direct connection between input and output.
Transient A relatively high amplitude, rapidly decaying, peak signal level. Untreated transients can cause audible distortion if levels are high enough.
Transient Response The ability of an audio component, such as a speaker or microphone, to accurately follow a transient.
Transport The mechanical system in a tape recorder that moves tape past the heads. The transport controls tape motion during recording, playback, fast forward and rewind.
Trashy A sound with weak lows and boosted mid-range, with a very narrow frequency range, as if it was heard on a telephone or from the inside of a metal trash can.
Tremolo the quick repetition of one or two pitches
Triad a chord of three tones
Trim A control on a mixer for precise adjustment of level. Also, a control that adjusts the gain of a mic preamp to compensate for various signal levels of different strengths.
Trio a work or movement for three instruments or voices
Truss Rod A curved metal bar implanted into the neck of a guitar used to adjust the amount and direction of bend in the neck.
Tubby A sound having low-frequency resonances, almost as if the sound were coming from inside a bathtub.
Tutti everyone together
Tweeter A high frequency cone on a speaker.
Twelve/Eighth Time A time signature of twelve eighth beats in one bar of music.
Unbalanced Line An audio cable having one conductor surrounded by a shield that carries the return signal. The main disadvantage of an unbalanced line as compared to a balanced line is the potential for ground loops and hum, which balanced lines avoid.
Unidirectional Microphone A microphone that is most sensitive from sounds arriving in one (uni-) direction. Some examples of unidirectional mics include hypercardioid, supercardioid and cardioid
Up Stroke Right hand movement from bottom to top.
Upbeat a weak beat preceding the downbeat
Vamp A continuously repeated musical phrase.
Vco An acronym for Voltage-Controlled Oscillator. The VCO is the tone generator or sound source in an analog synth. The pitch that a VCO produces is a direct result of how much voltage it receives.
Veiled A track or sound sample with a slight amount of noise or and/or distortion, as if the speakers were covered with a silk veil. Veiled also describes a sound with slightly weak high frequencies. Opposite of transparent.
Velocity How loudly a note is struck.
Verse a stanza
Vibrato a slight wavering or pulsating of a tone in singing or playing an instrument
Virtual Tracking When a MIDI sequencer is locked via a sync box to a tape deck, the sequencer tracks become virtual additions or extensions to those on tape, since it is not necessary to record the sequencer tracks to tape.
Virtuoso a performer of extraordinary technical and expressive capabilities
Vocal Range the distance between the highest and lowest pitches one can sing
Vocal Register different portions of the vocal range; i.e. high, low etc.
Voicing The careful equalization of a speaker/amplifier system (as in a recording studio monitor or sound reinforcement system) to achieve a particular sound or effect.
VU Meter A voltmeter with a specific transient response, calibrated in VUs (volume units). A VU meter is used to display the relative volume of various audio signals, and to set the optimum recording level.
Waist Part of the body of a guitar which is smallest in dimension from top to bottom.
Waltz a nineteenth century dance in triple meter
Warm A music track or mix with good bass, sufficient low frequencies and adequate fundamentals relative to harmonics. Opposite of thin. It can also mean pleasantly spacious with good reverberation at low frequencies. Some engineers will talk about a mix having warm highs, meaning sweet highs.
Wav A short name for Wave Files, a Microsoft Windows file format for digital audio data.
Waveform A graph of an audio signal's sound pressure or voltage over time. The waveform of a pure tone is a sine wave.
Wavelength The physical length between corresponding points of successive cycles of a wave. Low frequencies have long wavelengths; high frequencies have short wavelengths.
Weber A unit of magnetic flux.
Weighted Referring to a measurement made through a filter with a certain specific frequency response. An A-weighted measurement is taken through a filter that simulates the frequency response of the human ear.
Weighty A music track or sound with good low-frequency response below 50 Hz. It suggests an object of great mass or power, such as a jet or thunder.
Whammy Bar A Metal Bar Attached To The Bridge Assembly On An Electric Guitar. When Pushed Down Or Pulled Up, It Changes The Position Of The Bridge, Altering The Pitch Of The Notes Being Played. It Can Be Used To Acheive Either A Tremolo Effect Or A More Dramatic Bending Of Pitch.
White Noise A mixture of all frequencies between 18Hz and 22kHz at even amplitudes.
Whole Beat A beat in music which lasts for a whole bar in music with a time signature of four/four.
Whole Step the distance of two half steps in the same direction
Whole-Tone Scale a scale in which all the intervals are whole steps
Windscreen Also known as a pop filter, a screen placed between a microphone and a vocalist that attenuates or filters out pop or wind disturbances before they strike the microphone diaphragm. Usually windscreens are made of silk or open-cell plastic.
Woodshedding Practicing an instrument for the purpose of significant improvements in technique, style, or speed.
Woofer A low frequency loudspeaker.
Wooly A sound with weak high frequencies, almost sounding like a speaker with wool blanket over it. For drum tracks, an emphasis around 225 to 600 Hz contributes to a wooly sound.
Word Painting a musical illustration of the meaning of a word or phrase
Wow An undesirable, slow periodic variation in tape speed.
X-Y Pair Also known as coincident pair, a method of stereo recording using a stereo microphone, or two separate microphones, placed so that the microphone diaphragms occupy approximately the same point in space. Normally, the microphones are angled apart and mounted one directly above the other.
Xlr-Type Connector The part number of an ITT Cannon device which has become the popular definition for a three-pin professional audio connector.
Y-Adaptor A cable that connects two cables in parallel in order to feed one signal to two separate inputs.
Zydeco Music of Louisiana's bayous that blends Cajun rhythms with rhythm and blues. Instrumentation includes washboards and accordions, though more generally, electric instruments.



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