[LAU] latency issues (practical aid needed on a practical example)

From: Julien Claassen <julien@email-addr-hidden-lab.de>
Date: Tue Jun 10 2008 - 22:38:48 EEST

Hi everyone!
   I just compiled a sound generator, which can be controlled vai MIDI, it uses
simpe raw-midi and jack as output, via bio2jack.
   Now I have horrible latency 0.2-0.5sec (rough estimate). Where should I
start looking in my setupt. I know others had the software running without
problems.
   Sorry for being so abstract, but I'm not allowed to mention the software.
:-( But I could post parts of the source if necessary.
   My setup is:
Debian Lenny with custom built kernel 2.6.24-rt1
   JACK subversion 0.109.0
   jack-commandline:
jackd --timeout 4500 -R -d alsa -d hw:1 -r 48000 -p 128 -H -M -z shaped
   ALSA version 1.0.15
   Any idea where to optimise?
   Kindest regards
          Julien

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Received on Wed Jun 11 00:15:02 2008

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