Sorry had posted in a different forum. Hopefully this is the right forum to address this issue:
We are developing an application which takes audio from the microphone and does some analysis. We found during the analysis, that AGC and VAD are implemented on the microphone subsystem. We would like to know if
1. Are there any other post processing done on the audio(PCM) before it is delivered to the application?
2. Is it possible for the application to disable the AGC and VAD post processing? We know that this is disabled if we do a recording in AAC format.
3. Any idea on the characteristics (alogorithm) used for AGC and VAD
Thanks in advance,
John J Chooracken