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[fluid-dev] FS produces unbearably loud noise when playing most instrume
[fluid-dev] FS produces unbearably loud noise when playing most instruments, any soundfont
13 Jan 2005 05:26:08 -0000
Recently I got a MIDI interface and a keyboard, and I'm trying them out with
FluidSynth to render the MIDI. For most soundfonts I've tried, the first piano
instrument (bank 1, program 1) works fine. But when I try almost any other
instrument and play a few notes, FluidSynth ends up producing a horrendously
loud noise! The only way I can stop it is by changing to a new instrument. It's
It seems to happen most easily with instruments that don't naturally fade out
when you hold them down, such as organs, accordions, cellos, and so on. I have
one soundfont in which this happens for the first piano too, but for most
soundfonts I can play the first piano without this bizarre behaviour.
As I said, I tried various soundfonts, and I haven't found one yet in which
this doesn't happen. I tried fiddling around with FluidSynth's various audio
and synth settings, but it made no difference. So it doesn't seem have to do
with chorus, reverb, buffers, periods and so on. I even tried different audio
output drivers, including oss, alsa, and jack, but the behaviour was the same.
The funny thing is, I don't remember this ever happening last year when I was
using FluidSynth just to play MIDI files. It seemed to work like a charm back
then - this noise thing never happened. But then I didn't have a MIDI keyboard
hooked up, although I don't see how that could possibly make any difference
with the sound synthesis.
Another thing that's different, however, is that I'm using kernel 2.6.10 now.
Last time I used FluidSynth I was running kernel 2.4.26 or .27. Maybe
something's changed between versions that's causing this weird thing to happen?
I might try recompiling FluidSynth or trying an older kernel. But has anyone
else experienced such a thing?
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