BitCrusher

[morganpackard]

Snap values to an arbitrary bit depth.

I think the way to do this is to find the max int for a given bit depth, multiply the current sample by that maximum depth, cast to an int, then divide back down by that max value to get to a float again. Like this:

int bitDepth = 8;
int bitDepthMax = pow(2, bitDepth);
for( float* currentSample in buffer){
    int snapped = bitDepthMax *  (*currentSample);
    (*currentSample) = (float)snapped/bitDepthMax;
}

Any reason I should force the bit depth to be an int? Fractional bit depths doesn't actually make sense, of course, but it could potentially be interesting musically.

[ndonald2]

That approach works. Fractional bit depths don't make sense in a conventional way, but you're right - that could be pretty interesting.

[morganpackard]

Ok. Wrote the class, but got tangled up in git/compile issues and don't want to jump out of creative time for organization time. Class is here: https://gist.github.com/morganpackard/5a45c855b81a7adca882

[morganpackard]

Done. Branch ready for merge.