On Thu, 2015-12-31 at 19:39 +0200, Alexandros Chronopoulos wrote: > Source and sinks that share the same clock source are those found in the > same sound card, right? I don't know how sound cards are usually designed, but I would guess that yes, the audio pipelines on the same sound card probably share the clock. > Which are the options if this is not the case, if > for example I use a USB mic with my system speakers? Is there any way to > prevent the process from clock driff? You can't just make the problem go away. Either you accept that there will be occasional glitches, or you manipulate the audio data so that it plays back a bit faster or slower than it would normally do. PulseAudio has module-loopback, which can be used to connect a source to a sink, and module-loopback adapts to the clock drift by converting the audio data to slightly different sample rate. I don't know what your application does, but if it doesn't do anything else than move audio from a source to a sink, you can replace your application with module-loopback. --Â Tanu
