PV_MagAbove:
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Classes | UGens > FFT

PV_MagAbove : PV_ChainUGen : WidthFirstUGen : UGen : AbstractFunction : Object

Pass bins above a threshold.
Source: FFT.sc

Description

Passes only bins whose magnitude is above a threshold.

Class Methods

PV_MagAbove.new(buffer, threshold: 0)

Arguments:

buffer

FFT buffer.

threshold

Magnitude threshold.

Inherited class methods

Instance Methods

Inherited instance methods

Examples

s.boot;
b = Buffer.read(s, Platform.resourceDir +/+ "sounds/a11wlk01.wav");


(
SynthDef("help-magAbove", { arg out=0;
    var in, chain;
    in = SinOsc.ar(SinOsc.kr(SinOsc.kr(0.08, 0, 6, 6.2).squared, 0, 100, 800));
    //in = WhiteNoise.ar(0.2);
    chain = FFT(LocalBuf(2048), in);
    chain = PV_MagAbove(chain, 310);
    Out.ar(out, 0.1 * IFFT(chain).dup);
}).play(s);
)

(
SynthDef("help-magAbove2", { arg out=0;
    var in, chain;
    in = WhiteNoise.ar(0.2);
    chain = FFT(LocalBuf(2048), in);
    chain = PV_MagAbove(chain, MouseX.kr(0, 10));
    Out.ar(out, 0.1 * IFFT(chain).dup);
}).play(s);
)

(
SynthDef("help-magAbove3", { arg out=0, soundBufnum=2;
    var in, chain;
    in = PlayBuf.ar(1, soundBufnum, BufRateScale.kr(soundBufnum), loop: 1);
    chain = FFT(LocalBuf(2048), in);
    chain = PV_MagAbove(chain, MouseX.kr(0, 310));
    Out.ar(out, 0.1 * IFFT(chain).dup);
}).play(s, [\soundBufnum, b]);
)