On Mon, Jul 13, 2020 at 09:52:00PM +0100, Måns Rullgård wrote: > Jan Stary <hans@xxxxxxxx> writes: > > On Jul 11 14:12:13, mans@xxxxxxxxx wrote: > >> Some effects have additional internal buffers. > > It seems there is a delay even when just playing > > default input to default output; even without the effects: > > sox -d -d > > (So I don't think it's the effect processing that introduces the > > delay.) > No, then it's just the main buffer that is set with the --buffer option. There are some buffers in the kernel and large default buffers in pulseaudio. I have used only small part of the advice in https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting and that decreased the delay from some 1/2 s to few tens of ms if I can judge by ear. There is more to read there though. Modify PulseAudio's configuration file (2/4) /etc/pulse/daemon.conf default-fragments = 3 default-fragment-size-msec = 5 Restart the PulseAudio daemon (3/4) R. -- „Walczy on z całym zapamiętaniem przeciwko intelektowi” - z akt personalnych prof. A. Baeumlera _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users
