@screwtape I have no idea, and in general signal processing theory stuff is extremely incompatible with my brain, so....
Anyway, I just want to do something a bit smarter than the usual voice chat thing of thresholding by volume, with the hopes I'll prevent it from being triggered by random noises.
Since I want to use it to drive the avatar's mouth open/close, having minor noise be treated as signal is far worse than in a voice chat app situation.