On Mon, 2010-01-11 at 13:33 +0100, Stéphane List wrote: [...] > It works well if my PC is already playing a MP3. But if my PC is silent, > the 3 first ticks don't look very accurate. > Any hint ? Sounds like this might be your problem: https://tango.0pointer.de/pipermail/pulseaudio-discuss/2009-December/005893.html Cheers, Arun