hey so im thinking of building a soundvore type robot, that moves to chase loud sounds.
so here is the thing, im having trouble figuring out the circuit that takes microphone noise, amplifies it, and stabilizes it as a voltage that lasts about quarter a second or so.
in the end i want it to go to an ADC of a microcontroller for a reasonable 8 bit reading.
my guess . . .
sound -> audio op-amp (how much do i amplify it?) -> diode (to remove negative voltagess) -> capacitor between signal and ground (for signal smoothing, but what value?) -> ADC of microcontroller
im not doing frequency matching, just amplitude analysis.