[LAU] midi triggering delay

Clemens Ladisch clemens at ladisch.de
Tue Sep 22 04:44:53 EDT 2009


andy baxter wrote:
> The delay is variable - sometimes the note will sound almost 
> immediately, but usually there is a slight delay.
> 
> I've tried with aseqdump, and as far as I can tell there is no delay - 
> 'note on' seems to appear at the same moment that I press the key.

Delays aren't as apparent visually.  Could you record something with
arecordmidi, then play it to the synth with aplaymidi?  When doing this,
are the delays the same when you play it repeatedly?

> I've also tried using zynaddsubfx instead of qsynth / fluidsynth, and 
> the delay is still there.
> 
> Which seems odd - I would have expected that if aseqdump was not showing 
> a delay then the problem must be with qsynth. Maybe there's some library 
> or code snippet that zyn and qsynth both share?

Could you try with another synth, e.g., Timidity?


Best regards,
Clemens



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