usb audio clock question

Edward Hervey bilboed at
Tue Jun 3 01:19:33 PDT 2014

On Tue, 2014-06-03 at 00:28 -0700, mattes wrote:
> GStreamer is typically using the audio clock to provide 
> synchronization for Playback and Recording of a media AV stream.
> I was just wondering if one would to use a USB audio dongle,
> instead of the internal built-in audio, which clock is actually
> to be used. The actual audio playback device is located on 
> the other side of the 'usb' wire.
> So there is no direct access to the clock of the USB audio chip.
> In such setup, which clock is used by GStreamer?

  The GstClock returned by an audio sink will be at the rate of
consumption of your audio device (whichever device it is). Just select
that device with the audio sink of your choosing.


> Mat
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Edward Hervey
bilboed at

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