Pause recording callback for AudioQueue

Question

Hi,

I have a basic doubt about AudioQueues, I am using AudioQueue to record and am basically following the SpeakHere app. I found out that whenever I pause recording using the api: AudioQueuePause on AudioQueue object, the recording is not paused immediately. Is there a callback in AudioQueues which intimates the delegate that audio recording is paused?

Or am I wrong in understanding that AudioQueuePause api is asynchronous? The API as depicted in the docs is:

OSStatus AudioQueuePause (
   AudioQueueRef inAQ
);

It does return OSStatus, but which one of them indicates a successful call and whether they (OSStatus) indicate that the call is synchronous?

Thanks, Raj

Answer 1

You could try

AudioQueueGetCurrentTime or AudioQueueDeviceGetCurrentTime

as soon as the "pause request" fromn your UI occurs. Then you can ignore/delete the additional samples that were recorded after your "pause request" due to the asynchronous AudioQueuePause command.