'Twas brillig, and Thomas Rich? at 30/01/11 12:28 did gyre and gimble: > Ok, I've set up a tunnel. > It is working as expected, the volume keys now affects the selected sink !! > Thank you. > > However, I noticed a degradation in sound quality: > - the sound is sometimes missing > - when i change track in vlc, the beginning of the sound is chopping > > do you have any idea what could be causing this ? Well the two methods are quite different in architecture terms: Old Way: Application -> TCP: Remote PA -> Speakers New Way: Application -> Local PA -> TCP: Remote PA -> Speakers So as you can see there is an extra thing in the middle with the new setup. This adds overhead (although not too much) but gains flexibility. The real problem with the chopping is really a combination of things: 1. VLC is quite fixed with how it deals with PA and the buffer metrics. It's on my todo list to rewrite the PA layer in VLC, but I've not had a chance yet. 2. The tunnel module does not cope very well with underruns. In theory the tunnel support should try to dynamically address underruns by attempting to request more data from the application when an underrun occurs (e.g. read ahead more) to reduce the likelihood of a further underrun in the future. Again, it would be nice if someone would help spruce up the tunnel code to make it more featureful (there are also requests to dynamically change the sample rate of data passed over the tunnel) Sadly with both of these problems, there does tend to be some degree of quality loss at times. On a suitably fast network, it's generally not a problem tho'. If you really want to keep using padevchooser if it suits you better, then that's OK. You can also do the following before starting the application: export PULSE_SERVER=remoteip This does basically the same thing as padevchooser (although it uses X11 properties on the root X11 window rather than environment variables but the principle is the same) HTHs Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]
