[pulseaudio-discuss] [with workaround] Fluttered sound with Firefox or Chome when using PA through the network

Tanu Kaskinen tanu.kaskinen at linux.intel.com
Sun Jan 26 07:22:58 PST 2014

On Tue, 2014-01-21 at 16:29 +0100, Nicolas Michel wrote:
> Hi guys,
> When using the tunneling feature of pulseaudio to use the sound card
> of another computer, it works well with VLC, and any app I tested in
> general (I'm on the latest Ubuntu). But when using Firefox or Chromium
> (did'nt tried any other browser) the sound is fluttered. The only way
> to make it working any time is the workaround found in this thread
> (you'll also find in the original question a link to a youtube clip
> with the record of the sound problem):
> http://askubuntu.com/questions/122148/flash-in-browsers-does-not-play-sound-accurately-using-pulse-network-audio
> I have to start firefox specifying my remote PA server with an
> environment variable:
> PULSE_SERVER=192.168.X.X:4713 firefox &
> That way firefox speaks directly to the remote PA without being
> proxied by the local PA but in that case I don't have any control on
> the volume anymore...
> Is this problem known upstream? Is it a PA issue or firefox/chromium
> related issue?

We have a patch[1] in bugzilla that is supposed to fix some problems
with Flash when used with a tunnel sink. Does that patch fix your
problem? If it does, can you reproduce the problem with anything else
than with Flash content? One reason why the patch hasn't been applied
yet is that Flash is closed source, which prevents us from understanding
the issue thoroughly. If there was an open source program that could be
used for reproducing the problem, that might help (although I don't
personally promise to spend any time investigating the problem).

[1] https://bugs.freedesktop.org/show_bug.cgi?id=66962


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