Issues with coreaudiod in 10.5.2?

Andi andi at andi.de
Fri Mar 7 12:55:27 EST 2008


Steve Sisak schrieb:
> The audio half of the camera is controlled by Apple's USB Audio Class 
> driver directly, so we don't really have any control over it -- that 
> would be between the camera firmware and Apple's driver.
> 
> If you have access to bugreport.apple.com, please file a bug and send me 
> that bug number -- I will do so as well.
> 
> That said, the video channel can use all of the Isochronous bandwidth on 
> the bus and if the video stream starts up before the audio stream, could 
> cause the audio stream to fail because there's no bandwidth left.
> 
> You could try reducing the setting of the "bandwidth" slider in the 
> video settings, which will force the video driver to limit how much USB 
> bandwidth it uses. If this clears the problem then it's most likely a 
> bug in Apple's audio driver causing it to crash when it can't allocate 
> bandwidth.

I've submitted a bugreport to Apple, I'll send you the report# in a 
private mail, Steve.
Just to mention: the limitation of bandwidth didn't solve the problem, 
I'm not using the audio stream of my camera (system sounds setting is 
'headphone'), but coreaudiod crashes  anyway.

Andi


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