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CGT 154 -- Sound Editing
CGT 154 -- Sound Editing
61
Other
Undergraduate 1
11/12/2010

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Term
Compression
Definition
Air is pushed
Term
Rarefaction
Definition
Air is pulled
Term
Sound pressure waves
Definition
Where air moves in wavelike fashion, carrying sounds to the membranes in your ears.
Term
Sine wave
Definition
The up and down wave form depicting a sound. One up and one down equals a full wave
Term
Frequency
Definition
How many times the sound cycles; the more _____ the higher the pitch (not volume).
Term
Omni directional mike
Definition
Closed case
Term
Bi-directional mike
Definition
Open case
Term
Cadioid mike
Definition
Ported case
Term
.wav, .aiff, sdii
Definition
Audio files from the program (computer)
Term
mp3, wma, cda, ac3
Definition
End product (consumer/commercial/compressed) files
Term
Mic & preamp
Definition
Input
Term
Direct routing
Definition
Button or mic right to the track
Term
Bussies
Definition
Wire that carries more than 1 signal a ta time to the track
Term
Main Mix Buss
Definition
Feeds thespeaker from all the inputs/tracks that mix to form the final product.
Term
FX
Definition
Effects, i.e. echo, reverb, etc.
Term
Outboard Interfaces
Definition
Special effects, compressors, equalizers, gates
Term
Digital Audio Interfaces
Definition
Breakout boxes with input/output (I/O)
Term
3:1 Rule
Definition
Keep mics 3 time saway from each other so there is zero phase cancellation
Term
Phase
Definition
Where one mic is hearing hte other, cancelling out the noise complete (white space)
Term
2:1 Rule
Definition
Double the distance from something and the volume gets cut in half.
Term
Reverb
Definition
Accoustical reflection; where the sounds hits the ear, then the wall, then the sound from the wall hits the ear.
Term
Fletcher Munson
Definition
When the volume goes down, thelow frequency becomes less apparent; when it goes up thelow frequency is more apparent.
Term
Pitch change
Definition
When it goes louder and the low frequence can start to sound flat.
Term
Bass directionality
Definition
Hard to tell where the low frequency (wave length) comes from.
Term
Masking
Definition
Where musical instruments or voices are too similar and there is not enough harmonic contract to separate one from another.
Term
Transparency
Definition
Where the sound is captured and recorded and comes out the same as the original sound.
Term
Ribbon mic
Definition
A magnet with a holder with a wafer of foil and the ribbon vibrates.
Term
Dynamic mic
Definition
Coil of wire surrounded by magnetic can and the coil vibrates.
Term
Condenser mic
Definition
Plates and electronis, battery, resistor and cord (more expensive; used in studios)
Term
Feedback
Definition
When themic hears itself.
Term
Polar graph
Definition
Comes with a new mic to show legend of Hz, etc. for setup.
Term
Frequency response
Definition
Line graph showing loudness and frequencies.
Term
Proximity effect
Definition
Giving the mic a bigger base effect by bringing it closer to the mouth.
Term
Patterns
Definition
Screens, filters, etc. for when the sound is too loud for the speakers.
Term
Pads (mostly condensers)
Definition
To prevent distortion.
Term
Analog
Definition
Draws a comparative relationship; cassette tapes, vinyl records.
Term
Noisy
Definition
Random energy (the white noise you hear on a tape or record in between sounds or tracks).
Term
Digital
Definition
Binary Os & 1s, bits & bytes (one byte is 8 bits).
Term
Sampling
Definition
Each sample is given a number so it's quantified and the computer recognizes it and associates it with a sound.
Term
NYQUIST Rule
Definition
Need to take 2 x times as many samples as you have cycles/second to get an accurate sample.
Term
48 khz
Definition
professional sampling frequency for video
Term
44.1 khz
Definition
sampling rate for end product audio
Term
Bit depth
Definition
gives you more possible volumes; the dynamics is different between loud & quiet
Term
Shuffle
Definition
When there are more than 1 audio track, you can rearrange them automatically when you drag them.
Term
Slip
Definition
Can slide audio in the window to the L or R
Term
Spot
Definition
When you know what time frame you want and can just type in the number and go to it.
Term
Grid
Definition
Shows the track on grid lines and allows you to place sound files at predetermined units of time depending on how the counter is set.
Term
Bars/beats
Definition
4 beats = 1 bar
Term
Min/sec
Definition
Goes by the number of minutes and seconds in the file.
Term
Time code
Definition
h:m:s:frame -- used to synchronise with video machines, etc.
Term
Feet/frames
Definition
Use for celluloid film not video
Term
Sample
Definition
Align the sample to an audio file.
Term
Latency
Definition
When the plugins are too many and it bogs down the processor and it comes back late.
Term
Buffer
Definition
The amount of computer space set aside for the processing; the bigger the buffer the worse the latency.
Term
Equalizers
Definition
Takes a range of high frequencies and turns it up or down.
Term
Dynamic processor
Definition
Starts out low then goes loud or vice versa this is the dynamic range
Term
Reverb
Definition
Time based special effect meant to simulate an effect of a particular space, i.e. room with echo, etc.
Term
Diffusion
Definition
How many surfaces there are to reflect sound; i.e. a cube has low diffusion; a room with lots of stuff in it has high diffusion.
Term
Decay
Definition
How long does the reverb hang around.
Term
Predelay
Definition
The time between the original sound and when the reverb comes back.
Term
MIDI
Definition
Musical Instrument Digital Interface
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