Re: Problem with AudioQueuePause/AudioQueueStart for recording
Re: Problem with AudioQueuePause/AudioQueueStart for recording
- Subject: Re: Problem with AudioQueuePause/AudioQueueStart for recording
- From: Doug Wyatt <email@hidden>
- Date: Wed, 27 Aug 2008 09:58:14 -0700
Unfortunately, AudioQueuePause doesn't have any reliable effect on
recording. For now, don't do that; stop and restart instead.
On Aug 18, 2008, at 15:45 , Craig Hopson wrote:
Hi list,
I'm using AudioQueuePause/AudioQueueStart to implement pausing a
recording session. Simply pausing & (re)starting the recording is
not producing the results that I expected.
Here is a typical session:
Start recording for about 5 seconds.
Pause recording for about 5 seconds.
Resume recording for another 5 seconds.
Stop recording.
Using the simulator that accompanies the development environment for
Apple's new communications device,
on playback, I hear the first 5 seconds, followed by about the last
1/2 sec of the audio repeated, followed by the resumed audio.
However, when the same sequence is followed on the actual device,
the repeated audio is around 3 seconds. Why, once the audio data
has been written to the file, does it still remain in the buffer(s)
to be written again? I have tried using AudioQueueFlush, but to no
effect.
So, is there a problem with my implementation, or is there a problem
with the AudioQueue? Do I need to manage the contents of the
buffers somehow when AudioQueuePause is called?
Thanks for any insight.
-Craig
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