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49 Cards in this Set
- Front
- Back
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idiophone
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object that when interacted with, it will make a noise
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aerophone
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cylider that when air goes thru it, it will make a noise
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membranophone
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drum
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chordaphone
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guitar
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speed of sound
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is constant across the spectrum except when the temperature changes
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3 to 1 rule
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2 mics same distance from source, 3 times the distance from each other
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volume
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inpercise consumer term with no set definition in terms of sound
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loudness
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listners perception of what they hear
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intensity
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SPL-sound pressure level
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crest factor
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1. its really good for whitening your teeth
2. instanteneous rise from avarage to peak value |
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bit depth
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is dynamic range, and discreet steps of resolution
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0 on VU meter is how much on a digital signal meter
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-18dbFS
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nyquist filter
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low pass filter
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passband
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useful portion of the spectrum
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Haas Effect
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two sounds have to be 30 msecs apart in order to be percieved as two sounds
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benefit of using high sample rate
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a less severe slope in a low pass filter results in less artifacts in the passband
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DSD
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direct stream digital
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Dither
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low level noise introduced into the signal.
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Dither does
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1. modulation of least significant bit
2. provides fake nosie floor 3. increases percieved dynamic range |
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bias
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50k signal
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George Massenberg
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1967, invented parametric EQ
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bandwidth
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difference in 3db downpoints in octaves
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Q
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3db downpoints difference devided by the center frequency
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IIR
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infinite impulse response
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FIR
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Finite impulse response----prevents linear phase distortion
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Gerzone
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resonant shelf, it dips briefly before rising
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Boxandall
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continually rising curve
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300hz-700hz
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frequencies that make the mix sound really boxed
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1khz-4khz
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high frequencies of mixes, too much is harsh and irritating
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musical bottom end
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low frequency info that contains fundemental and or harmonic values that are realted to the rest of the musical program
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NOS stereo mic technique
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two cardiods 30cm apart, angled at 90 degrees,
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analog tape has how much dynamic range?
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70db
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ADSR?
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attack, decay, sustain, release--an envelope
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Calibrated Monitor System
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known system calibrated to a known frequency and amplitude response
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clock
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speed and accuracy with which samples are played
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dynamic range
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dynamic range of 24 bit audio is----24x6=144db
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Noise Shaping
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algorithm applied to dither, pushes dither noise into a frequency that cant be heard.
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ORTF
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Office of Radio Television Francios
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parallel compression
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taking the uncompressed signal and acompressed version of the signal mixing them tigether and getting an upward compression version of them
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Ribbon test
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used to asses your stereo field
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speed of sound #
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1130ft per sec
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truncation
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reduction of bit depth
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7 essential components to D-Control
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1. CPU
2.Console 3.192's 4.digi pres 5.midi i/o's 6.xmon 7.sync i/o |
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mics set to omni shall, or not suffer from close proximity effect
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shall not
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when does comb filtering become and issue
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beyond 6ft
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two mics 4 feet apart enforce pickup of what frequency?
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280hz
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2 mics 1 foot apart enforce pickup of what frequencies?
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1khz
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4 custom fader modes
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1. custom fader groups
2. mix edit groups 3. master or tracks 4. plug ins mode |
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flip?
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sends encoders to the faders, faders to encoders
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