i tried messing with the dac envelopes yesterday, but didn't get any
predictable results. the resistor that looks like it would control the
decay rate (with the cap) only seems to change the volume. i'm going
to compare it to other drum decay envs and see what i can figure out.
it would be nice to be able to shorten the sounds down to clicks, even
if it was one knob for all the sounds!