Hi all,

I get the same results: "audiobuf" must be at least 12 for me.

Also, there's probably 3 more milliseconds of latency in the audio hardware if not more.

Have you tried running at 96 kHz? That should cut it in half.

I don't know if the 8-buffer minimum is a Pd thing or a driver thing but I suspect the latter...

cheers Miller

On Wed, Jun 12, 2002 at 10:07:45PM -0700, Andrew (Andy) W. Schmeder wrote:

Hi all,

I'm trying to fine tune the latency for a pd/realtime setup.

The system: Debian/Unstable Intel P4 1.8ghz M-Audio Delta-44 (ice1712 driver) Alsa 0.9 Kernel 2.4.19-pre10 + A. Morton's latest Low-Latency patch

echo 1 > /proc/sys/kernel/lowlatency pd -alsadev hw:0,0 -rt

So far PD's best possible latency is 8 fragments (11 millisec. audio buffer). Below this it is completely unable to keep up.

Is there room for improvement in this setup? (Replacing the sound device is an option... I need as many channels as possible and latency in the 1-3 ms range).

-- Andy