I’d like to use the microphone to pick up an ultrasonic signal (above 20 Mhz) - 8-bit binary pulses - on both the iPhone and Android. Is there a way to
- adjust the input volume to maximum
- adjust the low and high-pass filters to accept only 20-25 Mhz?
Anyone know if the microphone cut-off filtering is in hardware or software?
Thanks All,
Derm