Re: [Alsa-user] Software midi synth and alsa

[Frank B. <fb...@fo...>]

Hallo,
Brice Méalier hat gesagt: // Brice Méalier wrote:

> With iiwusynth, the problem is that the sound seems to
> be read with a variable speed (like before I passed
> the option dxs_support with the wave), so it crackles.
> I have the following output when I start the program:
> 
> iiwusynth: warning: Couldn't set high priority
> scheduling for the audio output
> iiwusynth: warning: Failed to disable paging of sample
> data
> iiwusynth: warning: Couldn't set high priority
> scheduling for the MIDI input

iiwusynth is called fluidsynth now. Bug in iiwusynth will thus not get
fixed there anymore.

> With fluidsynth it's worst: the cpu power used raises
> up to 100% and sometimes the system hangs!!! (I have
> an AMD Athlon XP 2200+ with 256 MB Ram!!) and only a
> part of the instruments in the soundfont is loaded.

This probably is a fluidsynth problem, so you might want to ask this
on the fluid-dev mailing list. Is your soundfont available for
testing? Is it very large?

> PS: How can I automatically force the sampling rate to
> 48000 Hz with alsa (I know how to do that with artsd &
> esd but, as you know, arts & jackd & iiwusynth aren't compatibles...)

Either use an ~/.asoundrc that automatically converts to 48 kHz or
start the application with 48 kHz samplerate. With fluidsynth this
goes like this: 

$ fluidsynth --help | grep sample
 -r, --sample-rate
    Set the sample rate

ciao
-- 
 Frank Barknecht                               _ ______footils.org__