96873bdb5b8697091c72dfa85ee07b05cbfaf559
[Faustine.git] / interpretor / preprocessor / faust-0.9.47mr3 / tools / faust2pd / examples / seqdemo / chorus.dsp
1
2 /* A simple chorus effect. */
3
4 declare name "chorus -- a simple chorus effect";
5 declare author "Albert Graef";
6 declare version "1.0";
7
8 import("music.lib");
9
10 level = hslider("level", 0.5, 0, 1, 0.01);
11 freq = hslider("freq", 2, 0, 10, 0.01);
12 dtime = hslider("delay", 0.025, 0, 0.2, 0.001);
13 depth = hslider("depth", 0.02, 0, 1, 0.001);
14
15 tblosc(n,f,freq,mod) = (1-d)*rdtable(n,waveform,i&(n-1)) +
16 d*rdtable(n,waveform,(i+1)&(n-1))
17 with {
18 waveform = time*(2.0*PI)/n : f;
19 phase = freq/SR : (+ : decimal) ~ _;
20 modphase = decimal(phase+mod/(2*PI))*n;
21 i = int(floor(modphase));
22 d = decimal(modphase);
23 };
24
25 chorus(d,freq,depth) = fdelay(1<<16, t)
26 with { t = SR*d/2*(1+depth*tblosc(1<<16, sin, freq, 0)); };
27
28 process = vgroup("chorus", (c, c))
29 with { c(x) = x+level*chorus(dtime,freq,depth,x); };