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[fluid-dev] Fluid/qsynth/rosegarden not giving stable audio output after
[fluid-dev] Fluid/qsynth/rosegarden not giving stable audio output after a while-Blame Jack
Tue, 15 Mar 2005 08:49:09 +0000
Are you by any chance using an SB-Live with 44.1khz samplerate? If so this
is a known issue with this card, it works much better at 48khz.
If not... I don't know ;)
Since this message I've identified the problem to be with the Jack Audio
Connection kit only. If I configure qsynth/fluidsynth to playback directly
via ALSA, the problem does not occur (of course, with the drawback that the
synth output cannot be routed, for example, to freqtwear or rezound).
Also, yes, I was running at 44.1 khz. The music is intended for burning to
CD, and resampling from 48 khz to 44.1 in the end of the process introduces
some (albeit not a lot) loss of quality. Also I figured running at 44.1
should allow for about 10% more instruments because there's less to
I realize that the problem is attributed to the card itself (an audigy, not
a live, but also using an emu10k1, so it has the same problem). But if
playing direct-to-ALSA can play back smoothly through the hardware at
44.1kHz, I see no reason why Jack using ALSA driver shouldn't be able to do
the same, so to me this looks like a software problem. For now I'm running
Jack at 48 khz.
The Jack list recommends this (playing at 48 khz) stating "please see if the
problem still occurs then so that we can isolate it being a problem with
jack or not), which seems to solve the audio stability problem, however Jack
still quits on me after a while, so I'll take this problem to that list.
They'll be thrilled to find out this particular problem in the end seems to
be a software issue ;)
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- [fluid-dev] Fluid/qsynth/rosegarden not giving stable audio output after a while-Blame Jack,
Marc Brevoort <=