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21 Cards in this Set
- Front
- Back
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2 types of EQ
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Finite impulse response-digital eq linear phase
IIR-analogoue eq phase inconsistant |
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micro dynamics
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processed by automatic devices (compressors)
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macro dynamics
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fader moves by hand
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ideal processing chain
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filter
subtractive eq compress/expand additive eq |
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1 bit =
16 24 |
6
96 144 |
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wavelength
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1130/freq=lambda
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freq
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1130/lambda=freq
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freq from time
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1/t=freq
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coincident
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uses intensity differences IID
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near coincident
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uses ITD (time differences)
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3 types of masking
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amplitude
temporal directional |
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1st null of comb filter
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1/2 the freq
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artifacts of poor LPF
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Aliasing(dist)
short delays(ringing) time smearing(ripple) |
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slew rate
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speed at which an amp comes up to voltage
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Attack rates
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recording/mixing 15ms-100ms
mastering 50ms-300ms |
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release rates
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recording/mixing 50-500ms
mastering in upwards of 1 sec. |
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hard knee
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generally for a limiter.
aggressive, may distort |
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soft knee
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smooth sweet. used for compressing
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types of compressors
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1vari mu-tube gain reduction
2optical-led/photo resistor 3fet-transistor gain reduction 4vca 5dca-vca with digital control 6digital/pwm-pulse wave mod. 7plug in-emulation |
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Key issues with fidelity in DAW's
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poor filters in a/d-d/a
low sample rate poor converters low bit res. clock leakage/jitter inferior power supply/shielding fixed vs floating point math single or double precision math |
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asrc=
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asynchronous sample rate conversion: studies incoming clock source and adjusts accordingly.
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