// Simple positive-going zero crossing counter
// implemented native (per sample) in ChucK

adc => Gain inp => blackhole;
0.0 => float lastIn;
0 => int zeroXings;

while (1)  {
    for (0 => int i; i < 44100; i++) { // every second at 44.1 SRATE
	    if ((lastIn < 0.0) && (inp.last() >= 0.0)) {
	        1 +=> zeroXings;
	    }
	    inp.last() => lastIn;
	    samp => now;
    }
    <<< "Zero Crossings this 1/10th second =", zeroXings >>>;
    0 => zeroXings;
}