Re: [Audacity-devel] Output error to Bluetooth playback devices

[Gale A. <ga...@au...>]

| From Paul Livesey <pau...@bo...> 
| Thu, 1 Jul 2010 00:32:35 +0100
| Subject: [Audacity-devel] Output error to Bluetooth playback devices
> I've started looking at some of the Mac P2 bugs and started with the  
> Bluetooth one, ID 167.
> 
> The problem is easy to reproduce and is down to this line in  
> AudioIS::StartStream
> 
>     if( playbackTracks.GetCount() > 0 )
>        playbackChannels = 2;
> 
>   ----
>   SNIP SNIP SNIP SNIP
>   ----
> 
>     bool successAudio;
> 
>     successAudio = StartPortAudioStream(sampleRate, playbackChannels,
>                                         captureChannels, captureFormat);
> 
> My bluetooth headset, like most, is mono.  Setting playbackChannels to  
> 1 cures the problem and I get playback, but I'm not sure how to test  
> for this condition programatically.
> 
> Any advice welcome, I can give it a try and report back.

Hi Paul 

I'm puzzled though why so many of the complainants claim they don't have
the same problem in 1.3.3. There is an example here:
http://forum.audacityteam.org/viewtopic.php?f=17&t=18280&start=0

but the comment about it "working in 1.3.3" has been consistent. Clearly 
that code hasn't changed in the interim. And since I know of Windows
users with Bluetooth headsets that have no problem, Mac behaviour 
must be figured in here somewhere? 

Have you been into Audio MIDI setup and set the headset up as mono?
A few people say this fixes it, but most don't.  

Should we save e-mails and keep this on Bugzilla as much as possible?  





Gale