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Re: Bluetooth one way audio with iPhone OS 3.1
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Re: Bluetooth one way audio with iPhone OS 3.1


  • Subject: Re: Bluetooth one way audio with iPhone OS 3.1
  • From: William Stewart <email@hidden>
  • Date: Tue, 27 Oct 2009 19:17:47 -0700

Hi Langtian

We're not sure what exactly is going on. Could you file a bug report and attach some code we could use to reproduce the problem?

Thanks

Bill


From: Langtian Du <email@hidden>
Date: October 27, 2009 10:53:00 AM PDT
To: email@hidden
Subject: Bluetooth one way audio with iPhone OS 3.1

I have play_and_record audio session, it works well with build in speaker & microphone.
I enabled kAudioSessionProperty_OverrideCategoryEnableBluetoothInput to support
bluetooth audio.


If I start the audio session (audioqueue) with kAudioSessionProperty_OverrideCategoryEnableBluetoothInput
enabled directly, it also works on both bluetooth input and bluetooth output.


However, if during the session, I enable the audio route to speaker for a few seconds (either with
kAudioSessionProperty_OverrideCategoryEnableBluetoothInput enabled or not), then I disable the
route to speaker, set kAudioSessionProperty_OverrideCategoryEnableBluetoothInput again, I
only get bluetooth input/MIC, but I can't hear anything on the bluetooth speaker. I checked the audio
queue, which is working. (It has the interrupt yo get data)



I verified all the audio hardware information, like route is Bluetooth, sample rate is 8000, category is play-and_recorder,
actually they all same as the previous working one.


Any one see this issue? Is this a iPhone OS bug? Or where is my problem?

Thanks,

Langtian

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References: 
 >Bluetooth one way audio with iPhone OS 3.1 (From: Langtian Du <email@hidden>)

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