On Fri, 2013-11-22 at 13:56 +0100, Daniel wrote: > Dear list, > > I ask you for some assistance with null-sink and skipping/stutter. > > On client connect/disconnect and volume changes and many more things, > pulseaudio does a buffer rewind to let the changes take effect immediately. > So far,s o good, on all my soundcards this works like a charm. > > Now I have some audio stream setup where I play audio to a null-sink and > record it from null.monitor. This works really great, until some action > like pause/play, volume change, or connecting another audio client is > causing a rewind. Then the recorded audio hangs for approx 200ms or even > more. On soft volume changes, there are many many rewinds done, and so I > have many of these skips. > > The skipping audio is actually hanging, it does not drop any data. There is > just a silent break of about 200ms inserted into the stream. > > Of course it would be great to make rewinding on null sink just work as it > does on alsa sinks, but in case this is inevitable, I would be fine with > some possibility to disable rewinding. I know that all action then are > delayed, but that would be okay for me as the stream is delayed about 8 > seconds anyway, until it reaches the receiver. There's no reason why those glitches should be inevitable, so probably module-null-sink or the rewind handling of monitor sources in general has some bug. Now we just need someone to send a fix for the bug... Not that this will help you much, but this bug might have the same root cause: https://bugs.freedesktop.org/show_bug.cgi?id=68107 -- Tanu
