I am new to QNX. I have setup my first project with some IPC messaging between two threads.
Now what I want to do is have one thread as a microphone "driver" that samples input from the mic and stores / sends it 
as PCM packets to another thread which plays it out of the speaker.

So, are there any audio support libraries?, what is the best way to achieve recording microphone input and speaker 
output?

Thanks very much.