1 2/* A simple chorus effect. */ 3 4declare name "chorus -- a simple chorus effect"; 5declare author "Albert Graef"; 6declare version "1.0"; 7 8import("music.lib"); 9 10level = hslider("level", 0.5, 0, 1, 0.01); 11freq = hslider("freq", 2, 0, 10, 0.01); 12dtime = hslider("delay", 0.025, 0, 0.2, 0.001); 13depth = hslider("depth", 0.02, 0, 1, 0.001); 14 15tblosc(n,f,freq,mod) = (1-d)*rdtable(n,wave,i&(n-1)) + 16 d*rdtable(n,wave,(i+1)&(n-1)) 17with { 18 wave = 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 25chorus(d,freq,depth) = fdelay(1<<16, t) 26with { t = SR*d/2*(1+depth*tblosc(1<<16, sin, freq, 0)); }; 27 28process = vgroup("chorus", (c, c)) 29with { c(x) = x+level*chorus(dtime,freq,depth,x); }; 30