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iOS8: AudioOutputUnitStart() always fails after rejecting a phone call
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iOS8: AudioOutputUnitStart() always fails after rejecting a phone call

  • Subject: iOS8: AudioOutputUnitStart() always fails after rejecting a phone call
  • From: Beinan Li <email@hidden>
  • Date: Mon, 19 Jan 2015 15:11:02 -0500
Hi CoreAudio,

Our app used to handle interruption correctly with the registered interruption listener.
Now on iOS 8 under kAudioSessionCategory_AmbientSound category,
whenever we reject a phone call, the call to AudioOutputUnitStart() for resuming the 
audio pipeline always returns: 

ERROR:     [0x3afe09dc] 1230: AUIOClient_StartIO failed (561015905)

And our apps will have no sound as a result.

We set it to retry on fails but it would always fail on retries.

We were we missing?

Thanks,
Beinan

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