We need to increase the mic volume on our Android Tablets.
Currently we open the case and solder in a 2nd mic, but this still isn't loud enough.
We can adjust the internal wiring in anyway needed (add resistors, additional mics, capacitors, amps, etc). I just don't know what needs to be done to increase volume.
What I need is advice on what to d...
Skills: electrical engineering, electronics, integrated circuits, android