object AmpCompA extends Serializable
A UGen that produces a psychoacoustic amplitude compensation factor for a given frequency. It uses the A-weighting curve that is based on the Fletcher-Munson curve for rather low volume sounds (40 phon).
Only the freq parameter can be modulated, the other parameters are read at
initialization time only.
Examples
// activate with mouse button play { val freq = MouseX.kr(300, 15000, 1) val mod = freq * SinOsc.ar(MouseY.kr(3, 200, 1)).madd(0.5, 1) val corr = AmpCompA.ar(mod, 300) * 2 val amp = Select.ar(MouseButton.kr(lag = 0), Seq(DC.ar(1), corr)) SinOsc.ar(mod) * 0.1 * amp }
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def
ar(freq: GE = 1000.0f, root: GE = 0.0f, minAmp: GE = 0.32f, rootAmp: GE = 1.0f): AmpCompA
- freq
the frequency in Hertz for which to determine the compensation factor
- root
the root frequency in Hertz, relative to which the curve is calculated. This is usually lowest expected frequency. (init-time only)
- minAmp
amplitude at the minimum point of the curve. This is the factor output when
freqis approx. 2512 Hz. (init-time only)- rootAmp
amplitude at the root frequency of the curve. This is the factor output when
freq == root. (init-time only)
- def ar: AmpCompA
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def
ir(freq: GE = 1000.0f, root: GE = 0.0f, minAmp: GE = 0.32f, rootAmp: GE = 1.0f): AmpCompA
- freq
the frequency in Hertz for which to determine the compensation factor
- root
the root frequency in Hertz, relative to which the curve is calculated. This is usually lowest expected frequency. (init-time only)
- minAmp
amplitude at the minimum point of the curve. This is the factor output when
freqis approx. 2512 Hz. (init-time only)- rootAmp
amplitude at the root frequency of the curve. This is the factor output when
freq == root. (init-time only)
- def ir: AmpCompA
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def
kr(freq: GE = 1000.0f, root: GE = 0.0f, minAmp: GE = 0.32f, rootAmp: GE = 1.0f): AmpCompA
- freq
the frequency in Hertz for which to determine the compensation factor
- root
the root frequency in Hertz, relative to which the curve is calculated. This is usually lowest expected frequency. (init-time only)
- minAmp
amplitude at the minimum point of the curve. This is the factor output when
freqis approx. 2512 Hz. (init-time only)- rootAmp
amplitude at the root frequency of the curve. This is the factor output when
freq == root. (init-time only)
- def kr: AmpCompA
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