Android AudioRecord Supported Sampling Rates

Question

I\'m trying to figure out what sampling rates are supported for phones running Android 2.2 and greater. We\'d like to sample at a rate lower than 44.1kHz and not have to re

Answer 1

I have a phone (Acer Z3) where I get a positive buffer size returned from AudioRecord.getMinBufferSize(...) when testing 11025 Hz. However, if I subsequently run

audioRecord = new AudioRecord(...);
int state = audioRecord.getState();
if (state != AudioRecord.STATE_INITIALIZED) ...

I can see that this sampling rate in fact does not represent a valid configuration (as pointed out by user1222021 on Jun 5 '12). So my solution is to run both tests to find a valid sampling rate.