vocab.cpp

[campag]

matrix[] appears to have 20 elements, yet is declared as matrix[19]

[arjo129]

Whoops... Thanks @campag a lot. Silly me.

[campag]

Ha, we've all done it. I'm looking to play with this on arm (mbed environment). I notice the arduino spins as fast as it can in sample() when doing the adc conversion. Approx what rate is that so I can replicate it?

[arjo129]

9600 Hz by default, this can be increased though. I have used this algorithm at 44.1kHz on an x86 in a processing port. The values really depend on your pre-amp. Im not sure what mbed microcontroller you use but you should be able to perform sampling on most of them at a higher rate.