// Example using wind on microphone
// to excite virtual bamboo wind chimes
// by Perry R. Cook, based on examples from 2000-
// this version for ICAD Sonification Workshop, June 2012

Shakers bamboo => JCRev rev => dac.right;       // bamboo wind chimes
5 => bamboo.preset; 1.0 => bamboo.decay; 4 => bamboo.objects;
adc => LPF lp => LPF lp2 => LPF lp3;   // chain of low pass filters
50.0 => lp.freq => lp2.freq => lp3.freq; // set them up to pass
4.0 => lp.Q => lp2.Q => lp3.Q;           // only low frequencies
lp3 => OnePole envFollow => blackhole; // envelope follower
0.999 => envFollow.pole;  200.0 => envFollow.gain; // wind detector
3 => envFollow.op;  lp3 => envFollow;              // square input
0.03 => rev.mix;

1 => bamboo.noteOn;                        // git this party started

while (1)  {
    0.05 :: second => now;                  // update wind signal to 
    envFollow.last() => bamboo.energy;     // drive particle model
}