73 lines
1.1 KiB
Text
73 lines
1.1 KiB
Text
|
#lang scribble/manual
|
||
|
|
@(require (for-label racket))
|
||
|
|
|
||
|
|
@title{PV_MagFreeze}
|
||
|
|
Freeze magnitudes.@section{categories}
|
||
|
|
UGens>FFT
|
||
|
|
|
||
|
|
@section{description}
|
||
|
|
|
||
|
|
|
||
|
|
Freezes magnitudes at current levels when
|
||
|
|
@racketblock[freeze:: > 0.
|
||
|
|
|
||
|
|
|
||
|
|
]
|
||
|
|
@section{classmethods}
|
||
|
|
|
||
|
|
|
||
|
|
@section{method}
|
||
|
|
new
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
buffer
|
||
|
|
|
||
|
|
FFT buffer.
|
||
|
|
|
||
|
|
|
||
|
|
@section{argument}
|
||
|
|
freeze
|
||
|
|
|
||
|
|
If > 0, then magnitudes are frozen at current levels.
|
||
|
|
|
||
|
|
|
||
|
|
@section{Examples}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
@racketblock[
|
||
|
|
|
||
|
|
s.boot;
|
||
|
|
b = Buffer.read(s, Platform.resourceDir +/+ "sounds/a11wlk01.wav");
|
||
|
|
|
||
|
|
|
||
|
|
(
|
||
|
|
SynthDef("help-magFreeze", { arg out=0;
|
||
|
|
var in, chain;
|
||
|
|
in = SinOsc.ar(LFNoise1.kr(5.2,250,400));
|
||
|
|
chain = FFT(LocalBuf(2048), in);
|
||
|
|
// moves in and out of freeze
|
||
|
|
chain = PV_MagFreeze(chain, SinOsc.kr(0.2) );
|
||
|
|
Out.ar(out, 0.1 * IFFT(chain).dup);
|
||
|
|
}).play(s);
|
||
|
|
|
||
|
|
)
|
||
|
|
|
||
|
|
(
|
||
|
|
//trig with MouseY
|
||
|
|
SynthDef("help-magFreeze2", { 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_MagFreeze(chain, MouseY.kr > 0.5 );
|
||
|
|
Out.ar(out, 0.1 * IFFT(chain).dup);
|
||
|
|
}).play(s,[\soundBufnum, b]);
|
||
|
|
)
|
||
|
|
|
||
|
|
b.free
|
||
|
|
|
||
|
|
::
|
||
|
|
]
|
||
|
|
|
||
|
|
|