I'm trying to create a microphone array and take readings into a raspberry pi. I'm having an 8 bit ADC connected to the pi via I2C (SCL and SDA pins). I'm able to read samples (0-255) into my pi using this.
What I actually want to do is read input from 2 mics and find the cross correlation between the signals (to find direction of arrival of sound). Is an 8 bit ADC and I2C the right choice of tools for this? I would also want to do FFT on the signals.
If I'm using a 10-bit ADC, will I be able to plot an approximate waveform on my raspberry pi?