Poltergeist
Il termine poltergeist deriva dal tedesco e significa spirito rumoroso (geist significa spirito, poltern bussare).
play{a = PMOsc;b= SinOsc;d=137; a.ar(b.kr(0.1,d),d/2+b.kr(d*0.01,pi ),1,a.ar(4,2,1,0,a.ar(d*0.01,2,1)),b.kr(0.1))!2}// #supercollider
{ arg freq = 90; SinOsc.ar(freq * [1,1.000001] * ( 1 + ( SinOsc.ar(freq * LFPulse.kr(4,0, 0.5).range(0,1) * 1.50 )))) * 0.2; }.play
PMOsc phase modulation oscillator pair
PMOsc.ar(carfreq, modfreq, pmindex, modphase, mul, add)
Phase modulation sine oscillator pair.
carfreq - carrier frequency in cycles per second.
modfreq - modulator frequency in cycles per second.
pmindex - modulation index in radians.
modphase - a modulation input for the modulator's phase in radians
