""" Objects to modify the dynamic range and sample quality of audio signals. """ """ Copyright 2009-2015 Olivier Belanger This file is part of pyo, a python module to help digital signal processing script creation. pyo is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. pyo is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with pyo. If not, see . """ from ._core import * from ._maps import * class Clip(PyoObject): """ Clips a signal to a predefined limit. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. min: float or PyoObject, optional Minimum possible value. Defaults to -1. max: float or PyoObject, optional Maximum possible value. Defaults to 1. .. seealso:: :py:class:`Mirror`, :py:class:`Wrap` >>> s = Server().boot() >>> s.start() >>> a = SfPlayer(SNDS_PATH + "/transparent.aif", loop=True) >>> lfoup = Sine(freq=.25, mul=.48, add=.5) >>> lfodown = 0 - lfoup >>> c = Clip(a, min=lfodown, max=lfoup, mul=.4).mix(2).out() """ def __init__(self, input, min=-1.0, max=1.0, mul=1, add=0): pyoArgsAssert(self, "oOOOO", input, min, max, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._min = min self._max = max self._in_fader = InputFader(input) in_fader, min, max, mul, add, lmax = convertArgsToLists(self._in_fader, min, max, mul, add) self._base_objs = [ Clip_base(wrap(in_fader, i), wrap(min, i), wrap(max, i), wrap(mul, i), wrap(add, i)) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setMin(self, x): """ Replace the `min` attribute. :Args: x: float or PyoObject New `min` attribute. """ pyoArgsAssert(self, "O", x) self._min = x x, lmax = convertArgsToLists(x) [obj.setMin(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setMax(self, x): """ Replace the `max` attribute. :Args: x: float or PyoObject New `max` attribute. """ pyoArgsAssert(self, "O", x) self._max = x x, lmax = convertArgsToLists(x) [obj.setMax(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(-1.0, 0.0, "lin", "min", self._min), SLMap(0.0, 1.0, "lin", "max", self._max), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def min(self): """float or PyoObject. Minimum possible value.""" return self._min @min.setter def min(self, x): self.setMin(x) @property def max(self): """float or PyoObject. Maximum possible value.""" return self._max @max.setter def max(self, x): self.setMax(x) class Mirror(PyoObject): """ Reflects the signal that exceeds the `min` and `max` thresholds. This object is useful for table indexing or for clipping and modeling an audio signal. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. min: float or PyoObject, optional Minimum possible value. Defaults to 0. max: float or PyoObject, optional Maximum possible value. Defaults to 1. .. note:: If `min` is higher than `max`, then the output will be the average of the two. .. seealso:: :py:class:`Clip`, :py:class:`Wrap` >>> s = Server().boot() >>> s.start() >>> a = Sine(freq=[300,301]) >>> lfmin = Sine(freq=1.5, mul=.25, add=-0.75) >>> lfmax = Sine(freq=2, mul=.25, add=0.75) >>> b = Mirror(a, min=lfmin, max=lfmax) >>> c = Tone(b, freq=2500, mul=.15).out() """ def __init__(self, input, min=0.0, max=1.0, mul=1, add=0): pyoArgsAssert(self, "oOOOO", input, min, max, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._min = min self._max = max self._in_fader = InputFader(input) in_fader, min, max, mul, add, lmax = convertArgsToLists(self._in_fader, min, max, mul, add) self._base_objs = [ Mirror_base(wrap(in_fader, i), wrap(min, i), wrap(max, i), wrap(mul, i), wrap(add, i)) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setMin(self, x): """ Replace the `min` attribute. :Args: x: float or PyoObject New `min` attribute. """ pyoArgsAssert(self, "O", x) self._min = x x, lmax = convertArgsToLists(x) [obj.setMin(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setMax(self, x): """ Replace the `max` attribute. :Args: x: float or PyoObject New `max` attribute. """ pyoArgsAssert(self, "O", x) self._max = x x, lmax = convertArgsToLists(x) [obj.setMax(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(0.0, 1.0, "lin", "min", self._min), SLMap(0.0, 1.0, "lin", "max", self._max), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def min(self): """float or PyoObject. Minimum possible value.""" return self._min @min.setter def min(self, x): self.setMin(x) @property def max(self): """float or PyoObject. Maximum possible value.""" return self._max @max.setter def max(self, x): self.setMax(x) class Degrade(PyoObject): """ Signal quality reducer. Degrade takes an audio signal and reduces the sampling rate and/or bit-depth as specified. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. bitdepth: float or PyoObject, optional Signal quantization in bits. Must be in range 1 -> 32. Defaults to 16. srscale: float or PyoObject, optional Sampling rate multiplier. Must be in range 0.0009765625 -> 1. Defaults to 1. .. seealso:: :py:class:`Disto`, :py:class:`Clip` >>> s = Server().boot() >>> s.start() >>> t = SquareTable() >>> a = Osc(table=t, freq=[100,101], mul=.5) >>> lfo = Sine(freq=.2, mul=6, add=8) >>> lfo2 = Sine(freq=.25, mul=.45, add=.55) >>> b = Degrade(a, bitdepth=lfo, srscale=lfo2, mul=.3).out() """ def __init__(self, input, bitdepth=16, srscale=1.0, mul=1, add=0): pyoArgsAssert(self, "oOOOO", input, bitdepth, srscale, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._bitdepth = bitdepth self._srscale = srscale self._in_fader = InputFader(input) in_fader, bitdepth, srscale, mul, add, lmax = convertArgsToLists(self._in_fader, bitdepth, srscale, mul, add) self._base_objs = [ Degrade_base(wrap(in_fader, i), wrap(bitdepth, i), wrap(srscale, i), wrap(mul, i), wrap(add, i)) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setBitdepth(self, x): """ Replace the `bitdepth` attribute. :Args: x: float or PyoObject New `bitdepth` attribute. """ pyoArgsAssert(self, "O", x) self._bitdepth = x x, lmax = convertArgsToLists(x) [obj.setBitdepth(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setSrscale(self, x): """ Replace the `srscale` attribute. :Args: x: float or PyoObject New `srscale` attribute. """ pyoArgsAssert(self, "O", x) self._srscale = x x, lmax = convertArgsToLists(x) [obj.setSrscale(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(1.0, 32.0, "log", "bitdepth", self._bitdepth), SLMap(0.0009765625, 1.0, "log", "srscale", self._srscale), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def bitdepth(self): """float or PyoObject. Signal quantization in bits.""" return self._bitdepth @bitdepth.setter def bitdepth(self, x): self.setBitdepth(x) @property def srscale(self): """float or PyoObject. Sampling rate multiplier.""" return self._srscale @srscale.setter def srscale(self, x): self.setSrscale(x) class Compress(PyoObject): """ Reduces the dynamic range of an audio signal. Compress reduces the volume of loud sounds or amplifies quiet sounds by narrowing or compressing an audio signal's dynamic range. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. thresh: float or PyoObject, optional Level, expressed in dB, above which the signal is reduced. Reference level is 0dB. Defaults to -20. ratio: float or PyoObject, optional Determines the input/output ratio for signals above the threshold. Defaults to 2. risetime: float or PyoObject, optional Used in amplitude follower, time to reach upward value in seconds. Defaults to 0.01. falltime: float or PyoObject, optional Used in amplitude follower, time to reach downward value in seconds. Defaults to 0.1. lookahead: float, optional Delay length, in ms, for the "look-ahead" buffer. Range is 0 -> 25 ms. Defaults to 5.0. knee: float optional Shape of the transfert function around the threshold, specified in the range 0 -> 1. A value of 0 means a hard knee and a value of 1.0 means a softer knee. Defaults to 0. outputAmp: boolean, optional If True, the object's output signal will be the compression level alone, not the compressed signal. It can be useful if 2 or more channels need to be linked on the same compression slope. Defaults to False. Available at initialization only. .. seealso:: :py:class:`Gate`, :py:class:`Expand` >>> s = Server().boot() >>> s.start() >>> a = SfPlayer(SNDS_PATH + '/transparent.aif', loop=True) >>> b = Compress(a, thresh=-24, ratio=6, risetime=.01, falltime=.2, knee=0.5).mix(2).out() """ def __init__( self, input, thresh=-20, ratio=2, risetime=0.01, falltime=0.1, lookahead=5.0, knee=0, outputAmp=False, mul=1, add=0, ): pyoArgsAssert( self, "oOOOOnnbOO", input, thresh, ratio, risetime, falltime, lookahead, knee, outputAmp, mul, add ) PyoObject.__init__(self, mul, add) self._input = input self._thresh = thresh self._ratio = ratio self._risetime = risetime self._falltime = falltime self._lookahead = lookahead self._knee = knee self._in_fader = InputFader(input) in_fader, thresh, ratio, risetime, falltime, lookahead, knee, outputAmp, mul, add, lmax = convertArgsToLists( self._in_fader, thresh, ratio, risetime, falltime, lookahead, knee, outputAmp, mul, add ) self._base_objs = [ Compress_base( wrap(in_fader, i), wrap(thresh, i), wrap(ratio, i), wrap(risetime, i), wrap(falltime, i), wrap(lookahead, i), wrap(knee, i), wrap(outputAmp, i), wrap(mul, i), wrap(add, i), ) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setThresh(self, x): """ Replace the `thresh` attribute. :Args: x: float or PyoObject New `thresh` attribute. """ pyoArgsAssert(self, "O", x) self._thresh = x x, lmax = convertArgsToLists(x) [obj.setThresh(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setRatio(self, x): """ Replace the `ratio` attribute. :Args: x: float or PyoObject New `ratio` attribute. """ pyoArgsAssert(self, "O", x) self._ratio = x x, lmax = convertArgsToLists(x) [obj.setRatio(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setRiseTime(self, x): """ Replace the `risetime` attribute. :Args: x: float or PyoObject New `risetime` attribute. """ pyoArgsAssert(self, "O", x) self._risetime = x x, lmax = convertArgsToLists(x) [obj.setRiseTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setFallTime(self, x): """ Replace the `falltime` attribute. :Args: x: float or PyoObject New `falltime` attribute. """ pyoArgsAssert(self, "O", x) self._falltime = x x, lmax = convertArgsToLists(x) [obj.setFallTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setLookAhead(self, x): """ Replace the `lookahead` attribute. :Args: x: float New `lookahead` attribute. """ pyoArgsAssert(self, "n", x) self._lookahead = x x, lmax = convertArgsToLists(x) [obj.setLookAhead(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setKnee(self, x): """ Replace the `knee` attribute. :Args: x: float New `knee` attribute. """ pyoArgsAssert(self, "n", x) self._knee = x x, lmax = convertArgsToLists(x) [obj.setKnee(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(-60.0, 0.0, "lin", "thresh", self._thresh), SLMap(1.0, 10.0, "lin", "ratio", self._ratio), SLMap(0.001, 0.3, "lin", "risetime", self._risetime), SLMap(0.001, 0.3, "lin", "falltime", self._falltime), SLMap(0, 25, "lin", "lookahead", self._lookahead, dataOnly=True), SLMap(0, 1, "lin", "knee", self._knee, dataOnly=True), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def thresh(self): """float or PyoObject. Level above which the signal is reduced.""" return self._thresh @thresh.setter def thresh(self, x): self.setThresh(x) @property def ratio(self): """float or PyoObject. in/out ratio for signals above the threshold.""" return self._ratio @ratio.setter def ratio(self, x): self.setRatio(x) @property def risetime(self): """float or PyoObject. Time to reach upward value in seconds.""" return self._risetime @risetime.setter def risetime(self, x): self.setRiseTime(x) @property def falltime(self): """float or PyoObject. Time to reach downward value in seconds.""" return self._falltime @falltime.setter def falltime(self, x): self.setFallTime(x) @property def lookahead(self): """float. Delay length, in ms, of the "look-ahead" buffer.""" return self._lookahead @lookahead.setter def lookahead(self, x): self.setLookAhead(x) @property def knee(self): """float. Shape of the transfert function around the threshold.""" return self._knee @knee.setter def knee(self, x): self.setKnee(x) class Gate(PyoObject): """ Allows a signal to pass only when its amplitude is above a set threshold. A noise gate is used when the level of the signal is below the level of the noise floor. The threshold is set above the level of the noise and so when there is no signal the gate is closed. A noise gate does not remove noise from the signal. When the gate is open both the signal and the noise will pass through. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. thresh: float or PyoObject, optional Level, expressed in dB, below which the gate is closed. Reference level is 0dB. Defaults to -70. risetime: float or PyoObject, optional Time to open the gate in seconds. Defaults to 0.01. falltime: float or PyoObject, optional Time to close the gate in seconds. Defaults to 0.05. lookahead: float, optional Delay length, in ms, for the "look-ahead" buffer. Range is 0 -> 25 ms. Defaults to 5.0. outputAmp: boolean, optional If True, the object's output signal will be the gating level alone, not the gated signal. It can be useful if 2 or more channels need to linked on the same gating slope. Defaults to False. Available at initialization only. .. seealso:: :py:class:`Compress`, :py:class:`Expand` >>> s = Server().boot() >>> s.start() >>> sf = SfPlayer(SNDS_PATH + '/transparent.aif', speed=[1,.5], loop=True) >>> gt = Gate(sf, thresh=-24, risetime=0.005, falltime=0.01, lookahead=5, mul=.4).out() """ def __init__(self, input, thresh=-70, risetime=0.01, falltime=0.05, lookahead=5.0, outputAmp=False, mul=1, add=0): pyoArgsAssert(self, "oOOOnbOO", input, thresh, risetime, falltime, lookahead, outputAmp, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._thresh = thresh self._risetime = risetime self._falltime = falltime self._lookahead = lookahead self._in_fader = InputFader(input) in_fader, thresh, risetime, falltime, lookahead, outputAmp, mul, add, lmax = convertArgsToLists( self._in_fader, thresh, risetime, falltime, lookahead, outputAmp, mul, add ) self._base_objs = [ Gate_base( wrap(in_fader, i), wrap(thresh, i), wrap(risetime, i), wrap(falltime, i), wrap(lookahead, i), wrap(outputAmp, i), wrap(mul, i), wrap(add, i), ) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setThresh(self, x): """ Replace the `thresh` attribute. :Args: x: float or PyoObject New `thresh` attribute. """ pyoArgsAssert(self, "O", x) self._thresh = x x, lmax = convertArgsToLists(x) [obj.setThresh(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setRiseTime(self, x): """ Replace the `risetime` attribute. :Args: x: float or PyoObject New `risetime` attribute. """ pyoArgsAssert(self, "O", x) self._risetime = x x, lmax = convertArgsToLists(x) [obj.setRiseTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setFallTime(self, x): """ Replace the `falltime` attribute. :Args: x: float or PyoObject New `falltime` attribute. """ pyoArgsAssert(self, "O", x) self._falltime = x x, lmax = convertArgsToLists(x) [obj.setFallTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setLookAhead(self, x): """ Replace the `lookahead` attribute. :Args: x: float New `lookahead` attribute. """ pyoArgsAssert(self, "n", x) self._lookahead = x x, lmax = convertArgsToLists(x) [obj.setLookAhead(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(-100.0, 0.0, "lin", "thresh", self._thresh), SLMap(0.0001, 0.3, "lin", "risetime", self._risetime), SLMap(0.0001, 0.3, "lin", "falltime", self._falltime), SLMap(0, 25, "lin", "lookahead", self._lookahead, dataOnly=True), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def thresh(self): """float or PyoObject. Level below which the gate is closed.""" return self._thresh @thresh.setter def thresh(self, x): self.setThresh(x) @property def risetime(self): """float or PyoObject. Time to open the gate in seconds.""" return self._risetime @risetime.setter def risetime(self, x): self.setRiseTime(x) @property def falltime(self): """float or PyoObject. Time to close the gate in seconds.""" return self._falltime @falltime.setter def falltime(self, x): self.setFallTime(x) @property def lookahead(self): """float. Delay length, in ms, of the "look-ahead" buffer.""" return self._lookahead @lookahead.setter def lookahead(self, x): self.setLookAhead(x) class Balance(PyoObject): """ Adjust rms power of an audio signal according to the rms power of another. The rms power of a signal is adjusted to match that of a comparator signal. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. input2: PyoObject Comparator signal. freq: float or PyoObject, optional Cutoff frequency of the lowpass filter in hertz. Default to 10. >>> s = Server().boot() >>> s.start() >>> sf = SfPlayer(SNDS_PATH + '/accord.aif', speed=[.99,1], loop=True, mul=.3) >>> comp = SfPlayer(SNDS_PATH + '/transparent.aif', speed=[.99,1], loop=True, mul=.3) >>> out = Balance(sf, comp, freq=10).out() """ def __init__(self, input, input2, freq=10, mul=1, add=0): pyoArgsAssert(self, "ooOOO", input, input2, freq, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._input2 = input2 self._freq = freq self._in_fader = InputFader(input) self._in_fader2 = InputFader(input2) in_fader, in_fader2, freq, mul, add, lmax = convertArgsToLists(self._in_fader, self._in_fader2, freq, mul, add) self._base_objs = [ Balance_base(wrap(in_fader, i), wrap(in_fader2, i), wrap(freq, i), wrap(mul, i), wrap(add, i)) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. Input signal to process. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Default to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setInput2(self, x, fadetime=0.05): """ Replace the `input2` attribute. Comparator signal. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Default to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input2 = x self._in_fader2.setInput(x, fadetime) def setFreq(self, x): """ Replace the `freq` attribute. Cutoff frequency of the lowpass filter, in Hertz. :Args: x: float or PyoObject New `freq` attribute. """ pyoArgsAssert(self, "O", x) self._freq = x x, lmax = convertArgsToLists(x) [obj.setFreq(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [SLMap(0.1, 100.0, "log", "freq", self._freq), SLMapMul(self._mul)] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def input2(self): """PyoObject. Comparator signal.""" return self._input2 @input2.setter def input2(self, x): self.setInput2(x) @property def freq(self): """float or PyoObject. Cutoff frequency of the lowpass filter.""" return self._freq @freq.setter def freq(self, x): self.setFreq(x) class Min(PyoObject): """ Outputs the minimum of two values. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. comp: float or PyoObject, optional Comparison value. If `input` is lower than this value, `input` is send to the output, otherwise, `comp` is outputted. >>> s = Server().boot() >>> s.start() >>> # Triangle wave >>> a = Phasor([249,250]) >>> b = Min(a, comp=a*-1+1, mul=4, add=-1) >>> c = Tone(b, freq=1500, mul=.5).out() """ def __init__(self, input, comp=0.5, mul=1, add=0): pyoArgsAssert(self, "oOOO", input, comp, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._comp = comp self._in_fader = InputFader(input) in_fader, comp, mul, add, lmax = convertArgsToLists(self._in_fader, comp, mul, add) self._base_objs = [Min_base(wrap(in_fader, i), wrap(comp, i), wrap(mul, i), wrap(add, i)) for i in range(lmax)] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Default to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setComp(self, x): """ Replace the `comp` attribute. :Args: x: float or PyoObject New `comp` attribute. """ pyoArgsAssert(self, "O", x) self._comp = x x, lmax = convertArgsToLists(x) [obj.setComp(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [SLMap(0, 1, "lin", "comp", self._comp), SLMapMul(self._mul)] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def comp(self): """float or PyoObject. Comparison value.""" return self._comp @comp.setter def comp(self, x): self.setComp(x) class Max(PyoObject): """ Outputs the maximum of two values. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. comp: float or PyoObject, optional Comparison value. If `input` is higher than this value, `input` is send to the output, otherwise, `comp` is outputted. >>> s = Server().boot() >>> s.start() >>> # Assimetrical clipping >>> a = Phasor(500, mul=2, add=-1) >>> b = Max(a, comp=-0.3) >>> c = Tone(b, freq=1500, mul=.5).out() """ def __init__(self, input, comp=0.5, mul=1, add=0): pyoArgsAssert(self, "oOOO", input, comp, mul, add) PyoObject.__init__(self, mul, add) self._input = input self._comp = comp self._in_fader = InputFader(input) in_fader, comp, mul, add, lmax = convertArgsToLists(self._in_fader, comp, mul, add) self._base_objs = [Max_base(wrap(in_fader, i), wrap(comp, i), wrap(mul, i), wrap(add, i)) for i in range(lmax)] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Default to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setComp(self, x): """ Replace the `comp` attribute. :Args: x: float or PyoObject New `comp` attribute. """ pyoArgsAssert(self, "O", x) self._comp = x x, lmax = convertArgsToLists(x) [obj.setComp(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [SLMap(0, 1, "lin", "comp", self._comp), SLMapMul(self._mul)] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def comp(self): """float or PyoObject. Comparison value.""" return self._comp @comp.setter def comp(self, x): self.setComp(x) class Expand(PyoObject): """ Expand the dynamic range of an audio signal. The Expand object will boost the volume of the input sound if it rises above the upper threshold. It will also reduce the volume of the input sound if it falls below the lower threshold. This process will "expand" the audio signal's dynamic range. :Parent: :py:class:`PyoObject` :Args: input: PyoObject Input signal to process. downthresh: float or PyoObject, optional Level, expressed in dB, below which the signal is getting softer, according to the `ratio`. Reference level is 0dB. Defaults to -20. upthresh: float or PyoObject, optional Level, expressed in dB, above which the signal is getting louder, according to the same `ratio` as the lower threshold. Reference level is 0dB. Defaults to -20. ratio: float or PyoObject, optional The `ratio` argument controls is the amount of expansion (with a ratio of 4, if there is a rise of 2 dB above the upper threshold, the output signal will rises by 8 dB), and contrary for the lower threshold. Defaults to 2. risetime: float or PyoObject, optional Used in amplitude follower, time to reach upward value in seconds. Defaults to 0.01. falltime: float or PyoObject, optional Used in amplitude follower, time to reach downward value in seconds. Defaults to 0.1. lookahead: float, optional Delay length, in ms, for the "look-ahead" buffer. Range is 0 -> 25 ms. Defaults to 5.0. outputAmp: boolean, optional If True, the object's output signal will be the expansion level alone, not the expanded signal. It can be useful if 2 or more channels need to be linked on the same expansion slope. Defaults to False. Available at initialization only. .. seealso:: :py:class:`Compress`, :py:class:`Gate` >>> s = Server().boot() >>> s.start() >>> # original to the left channel >>> sf = SfPlayer(SNDS_PATH + "/transparent.aif", loop=True, mul=0.7) >>> ori = Delay(sf, 0.005).out() >>> # expanded to the right channel >>> ex = Expand(sf, downthresh=-20, upthresh=-20, ratio=4, mul=0.5).out(1) """ def __init__( self, input, downthresh=-40, upthresh=-10, ratio=2, risetime=0.01, falltime=0.1, lookahead=5.0, outputAmp=False, mul=1, add=0, ): pyoArgsAssert( self, "oOOOOOnbOO", input, downthresh, upthresh, ratio, risetime, falltime, lookahead, outputAmp, mul, add ) PyoObject.__init__(self, mul, add) self._input = input self._downthresh = downthresh self._upthresh = upthresh self._ratio = ratio self._risetime = risetime self._falltime = falltime self._lookahead = lookahead self._in_fader = InputFader(input) ( in_fader, downthresh, upthresh, ratio, risetime, falltime, lookahead, outputAmp, mul, add, lmax, ) = convertArgsToLists( self._in_fader, downthresh, upthresh, ratio, risetime, falltime, lookahead, outputAmp, mul, add ) self._base_objs = [ Expand_base( wrap(in_fader, i), wrap(downthresh, i), wrap(upthresh, i), wrap(ratio, i), wrap(risetime, i), wrap(falltime, i), wrap(lookahead, i), wrap(outputAmp, i), wrap(mul, i), wrap(add, i), ) for i in range(lmax) ] self._init_play() def setInput(self, x, fadetime=0.05): """ Replace the `input` attribute. :Args: x: PyoObject New signal to process. fadetime: float, optional Crossfade time between old and new input. Defaults to 0.05. """ pyoArgsAssert(self, "oN", x, fadetime) self._input = x self._in_fader.setInput(x, fadetime) def setDownThresh(self, x): """ Replace the `downthresh` attribute. :Args: x: float or PyoObject New `downthresh` attribute. """ pyoArgsAssert(self, "O", x) self._downthresh = x x, lmax = convertArgsToLists(x) [obj.setDownThresh(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setUpThresh(self, x): """ Replace the `upthresh` attribute. :Args: x: float or PyoObject New `upthresh` attribute. """ pyoArgsAssert(self, "O", x) self._upthresh = x x, lmax = convertArgsToLists(x) [obj.setUpThresh(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setRatio(self, x): """ Replace the `ratio` attribute. :Args: x: float or PyoObject New `ratio` attribute. """ pyoArgsAssert(self, "O", x) self._ratio = x x, lmax = convertArgsToLists(x) [obj.setRatio(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setRiseTime(self, x): """ Replace the `risetime` attribute. :Args: x: float or PyoObject New `risetime` attribute. """ pyoArgsAssert(self, "O", x) self._risetime = x x, lmax = convertArgsToLists(x) [obj.setRiseTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setFallTime(self, x): """ Replace the `falltime` attribute. :Args: x: float or PyoObject New `falltime` attribute. """ pyoArgsAssert(self, "O", x) self._falltime = x x, lmax = convertArgsToLists(x) [obj.setFallTime(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def setLookAhead(self, x): """ Replace the `lookahead` attribute. :Args: x: float New `lookahead` attribute. """ pyoArgsAssert(self, "n", x) self._lookahead = x x, lmax = convertArgsToLists(x) [obj.setLookAhead(wrap(x, i)) for i, obj in enumerate(self._base_objs)] def ctrl(self, map_list=None, title=None, wxnoserver=False): self._map_list = [ SLMap(-90.0, 0.0, "lin", "downthresh", self._downthresh), SLMap(-60.0, 0.0, "lin", "upthresh", self._upthresh), SLMap(1.0, 10.0, "lin", "ratio", self._ratio), SLMap(0.001, 0.3, "lin", "risetime", self._risetime), SLMap(0.001, 0.3, "lin", "falltime", self._falltime), SLMap(0, 25, "lin", "lookahead", self._lookahead, dataOnly=True), SLMapMul(self._mul), ] PyoObject.ctrl(self, map_list, title, wxnoserver) @property def input(self): """PyoObject. Input signal to process.""" return self._input @input.setter def input(self, x): self.setInput(x) @property def downthresh(self): """float or PyoObject. Level below which the signal is reduced.""" return self._downthresh @downthresh.setter def downthresh(self, x): self.setDownThresh(x) @property def upthresh(self): """float or PyoObject. Level above which the signal is boosted.""" return self._upthresh @upthresh.setter def upthresh(self, x): self.setUpThresh(x) @property def ratio(self): """float or PyoObject. in/out ratio for signals outside thresholds.""" return self._ratio @ratio.setter def ratio(self, x): self.setRatio(x) @property def risetime(self): """float or PyoObject. Time to reach upward value in seconds.""" return self._risetime @risetime.setter def risetime(self, x): self.setRiseTime(x) @property def falltime(self): """float or PyoObject. Time to reach downward value in seconds.""" return self._falltime @falltime.setter def falltime(self, x): self.setFallTime(x) @property def lookahead(self): """float. Delay length, in ms, of the "look-ahead" buffer.""" return self._lookahead @lookahead.setter def lookahead(self, x): self.setLookAhead(x)