71 lines
1.1 KiB
Text
71 lines
1.1 KiB
Text
|
#lang scribble/manual
|
||
|
|
@(require (for-label racket))
|
||
|
|
|
||
|
|
@title{PV_Diffuser}
|
||
|
|
Random phase shifting.@section{related}
|
||
|
|
Classes/FFT, Classes/IFFT, Classes/PV_PhaseShift, Classes/PV_PhaseShift90, Classes/PV_PhaseShift270
|
||
|
|
@section{categories}
|
||
|
|
UGens>FFT
|
||
|
|
|
||
|
|
@section{description}
|
||
|
|
|
||
|
|
|
||
|
|
Adds a different constant random phase shift to each bin. When triggered, it selects a new set of random phases.
|
||
|
|
|
||
|
|
|
||
|
|
@section{classmethods}
|
||
|
|
|
||
|
|
|
||
|
|
@section{method}
|
||
|
|
new
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
buffer
|
||
|
|
|
||
|
|
FFT buffer.
|
||
|
|
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
trig
|
||
|
|
|
||
|
|
A trigger, that selects a new set of random values.
|
||
|
|
|
||
|
|
|
||
|
|
@section{Examples}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
@racketblock[
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
(
|
||
|
|
// trig with MouseY crossing center of screen
|
||
|
|
{
|
||
|
|
var in, chain;
|
||
|
|
in = Mix.ar(SinOsc.ar(200 * (1..10), 0, Array.fill(10, { rrand(0.1, 0.2) }) ));
|
||
|
|
chain = FFT(LocalBuf(2048), in);
|
||
|
|
chain = PV_Diffuser(chain, MouseY.kr > 0.5 );
|
||
|
|
0.5 * IFFT(chain).dup;
|
||
|
|
}.play
|
||
|
|
);
|
||
|
|
|
||
|
|
(
|
||
|
|
b = Buffer.read(s, Platform.resourceDir +/+ "sounds/a11wlk01.wav");
|
||
|
|
|
||
|
|
// trig with MouseY crossing center of screen
|
||
|
|
{
|
||
|
|
var in, chain;
|
||
|
|
in = PlayBuf.ar(1, b, BufRateScale.kr(b), loop: 1);
|
||
|
|
chain = FFT(LocalBuf(2048), in);
|
||
|
|
chain = PV_Diffuser(chain, MouseY.kr > 0.5 );
|
||
|
|
0.5 * IFFT(chain).dup;
|
||
|
|
}.play
|
||
|
|
);
|
||
|
|
|
||
|
|
::
|
||
|
|
|
||
|
|
]
|
||
|
|
|
||
|
|
|