Re: [LAU] Is ALSA using hrtimer?

BTW, now that I've enabled hr timer, I notice that qtractor 's View->Options->MIDI->Playback has an entry for "Queue timer (resolution): [ (default), system timer (1000 Hz), HR timer (1000000000 hz), PCM Playback 0-0-0. (slave), PCM Playback 0-0-1 (slave), ... ]" What happens if I use "HR timer" instead of "(default)" or a specific PCM slave, when recording/playing back audio clips ? Does "PCM playback (slave)" mean the audio sample-clock is sync'd to the midi clock, or vice-versa? And if snd-hrtimer is available, wouldn't both audio and midi be using the same clock? (per Grant's comment ''CONFIG_SND_HRTIMER says: "ALSA uses the hrtimer as a precise timing source. The ALSA sequencer code also can use this timing source."'' ) W/r/t qtractor, does (default) "do the right thing" or should I be choosing a specific option based on use? I guess I'll find out... Niels http://nielsmayer.com