//--// name: Tracking.ck// desc: class and process for tracking a peak and amplitutde via FFT//       the Tracking class can be accessed from external shreds//// author: Ge Wang + Rebecca Fiebrink// date: 2007//--  // public classpublic class Tracking{    static float the_freq;    static float the_gain;    static Event @ the_event;} // initialize separately (due to a bug)new Event @=> Tracking.the_event; // analysisadc => PoleZero dcblock => FFT fft => blackhole; // set to block DC.99 => dcblock.blockZero;// set FFT params2048 => fft.size;// windowWindowing.hamming( fft.size() ) => fft.window; // go for itwhile( true ){    // take fft    fft.upchuck() @=> UAnaBlob blob;        // find peak    0 => float max; float where;    for( int i; i < blob.fvals().size()/8; i++ )    {        // compare        if( blob.fvals()[i] > max )        {            // save            blob.fvals()[i] => max;            i => where;        }    }        // set freq    (where / fft.size() * (second / samp)) => Tracking.the_freq;    // set gain    (max / .5) => Tracking.the_gain;    // clamp    if( Tracking.the_gain > 1 )        1 => Tracking.the_gain;    // fire!    Tracking.the_event.broadcast();     // hop    (fft.size()/4)::samp => now;}