SuperCollider CLASSES (extension)

WarpOverlap
ExtensionExtension

Create a texture of Warps
Inherits from: Object
 

Description

Inspired by Chad Kirby's SuperCollider2 Warp1 class, which was inspired by Richard Karpen's sndwarp for CSound. A granular time strecher and pitchshifter. See the Warp1 helpfile for more information about Warp1's specifics. This texture will create a series of Warp1s that keep up with the current time.

Class Methods

*ar (numChans: 1, buffer, overlaps: 4, starttime: 0, stretch: 1, harm: 1, windowsize: 6, step: 1, warpwindowsize: 0.11, warpwindowoverlaps: 8, warpwindowran: 0.1, mul: 1, add: 0)

Arguments:

numChans
buffer

The buffer number of a mono soundfile.

overlaps

The number of overlapping warps to create (should be equal to or greater then 3). This must be a fixed integer. The architechture of the SynthDef cannot change after it is compiled.

starttime

An initial starttime for the warp pointer (in the total buffer)

stretch

A stretch factor for the individual Warps.

harm

A float, or an instance of a Ref. If a Ref is used, its values are sequentially distributed among the larger overlapping windows.

windowsize

The windowsize in seconds of the larger overlapping windows.

step

A control on the pointer increment. 1 keeps the pointer up with the current time, 0 will halt time.

warpwindowsize

A float, or an instance of a Ref. The size of the individual warp windows.

warpwindowoverlaps

A float, or an instance of a Ref. The number of window overlaps for each warp.

warpwindowran

A float, or an instance of a Ref. The amount of randomness in each warp's windows.

Inherited class methods

Instance Methods

Inherited instance methods

Examples

s.boot;

(
s.sendMsg(\b_allocRead, 0, "sounds/a11wlk01.wav", 0, -1);

SynthDef(\warpoverlap, {arg buffer = 0, stretch = 1, windowsize = 6, mul = 1, gate = 1;
    var out, env, overlaps, harm, wwinsize, wwinoverlap, wwinran;
    overlaps = 8;
    harm = [3, 7, 5, -12].midiratio.asRef;
    wwinsize = `[0.11, 0.11, 0.11, 0.2];
    wwinsize = 0.11;
    wwinoverlap = 8;
    wwinran = 0.1;
    env = EnvGen.kr(Env([0.01, 1, 0.01], [0.1, 0.1], 'exp', 1), gate, doneAction: 2);
    out = WarpOverlap.ar(1, buffer, overlaps, 0, stretch, harm, windowsize, wwinsize, wwinoverlap, wwinran, mul);
    Out.ar(0, out * env);
}).send(s);

)

s.sendMsg(\s_new, \warpoverlap, a=s.nextNodeID, 0, 1, \buffer, 0, \stretch, 30, \mul, 0.1)

s.sendMsg(\n_free, a);