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Re: [fluid-dev] slow direct midi playback

From: Josh Green
Subject: Re: [fluid-dev] slow direct midi playback
Date: Mon, 24 Nov 2003 15:05:25 -0800

On Sun, 2003-11-23 at 13:50, Menteco wrote:
> Hi, I've solved the sound artifacts problem(1), but there's one issue left:
> if I play a MIDI file this way...
> fluidsynth -m alsa_seq 8MBGMSFX.SF2 celebrat_d.mid
> ...the playback is steady but slow.
> on the other hand, if I play it this way...
> fluidsynth -m alsa_seq 8MBGMSFX.SF2
> MIDI file plays with KMid through fluidsynth
> ...playback is the right tempo.
> What could it be the cause of that playback lag?
> Cheers,
> Paul www.menteco.tk
> (1) I have:
> a. recompiled the kernel 2.4.22 with ALSA, capabilities and Andrews' low 
> latency patch
> b. set the IRQ priority of my soundcard higher than that of my videocard
> c. and made fluidsynth suid root.

I've heard this from others as well. I haven't really tested playing
MIDI files with FluidSynth myself. Likely something related to the
sequencer or MIDI file parsing. I'll see if I can find anything obvious.
        Josh Green

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