Subject: [linux-audio-dev] Re: [alsa-devel] emu10k soundfont trouble
From: Robert Jonsson (robert.jonsson_AT_dataductus.se)
Date: Thu May 03 2001 - 13:47:09 EEST
Hi,
Sorry for spamming this all over the place, but I wanted to reach as many Alsa-emu10k
users/developers as possible. I would really like to know the extent of this problem. Since I
can reproduce it on two machines I think it's a general error.
Thanks
/Robert
Robert Jonsson wrote:
> Hi,
>
> Thought I'd finally get around to reporting some stuff I found regarding
> soundfont usage with emu10k (Sb Live)
>
> I've used this setup:
>
> Alsa 0.9beta3
> Linux 2.4.2 lowlatency patched and enabled
> SB Live
> 2mbgmgs.sf2 soundfont loaded <among others>
> Testing primarily done with midifile /usr/share/apps/kmidi/Mission_Impossible.mid
> default installed with kmidi, atleast on Mandrake systems.
>
> ================= And ==================
> Alsa 0.5.10
> Linux 2.2.18 lowlatency patched
> SB Live
> <some big soundfont>
> <Same midifile>
>
> Please note that these systems are entirely different machines, there are no
> shared resources to fault for the below behaviour.
>
> What happens is that notes don't get played after a while, pretty soon ALL sound
> is gone. This is very reproducable, To me it sounds pretty much the same on both
> systems.
> The problem is related to the sound-bank, in general with bigger banks (50MB)
> sound start to dissolve sooner. Even loading different banks of about the same
> size affect how soon the problem occurs.
> If I start over (in Muse it means quitting and restarting) the same happens all
> over again, sounds like somekind of allocation error ay?
>
> I tried both systems with:
>
> Muse version 0.3.16 - imported the midifile and played it (only tried on 2.4.2 machine)
> playmidi v2.4 - playmidi -a /usr/share/apps/kmidi/Mission_Impossible.mid
> aplay (can't recall the exact arguments I gave, I think it was just the port and
> midifile)
>
> Muse didn't sound exactly the same as the general midi players, but that could
> be due to Muse using importfilters and a native playformat (or however it works)
>
> Regards,
> Robert
>
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