I'm developing mac application with reference to the CAPlayThrough apple example project.
My application has features that playing audiofile to the output audio device and recording audio from the input audio device.
The playing and recording operation is a periodic task about every 10 minutes.
play operation: create AUHAL resource and start , play 15s , stop and release resource
record operation: create AUHAL resource and start , record 15s , stop and release resource
