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Date:      Tue, 26 Oct 2004 16:50:09 -0600
From:      Travis Poppe <tlpbsd@gmail.com>
To:        Suleiman Souhlal <ssouhlal@freebsd.org>
Cc:        Travis Poppe <tlp@liquidx.org>
Subject:   Re: Mild sound distortion with FreeBSD 5.3-BETA7
Message-ID:  <9533da6c0410261550432bb1d5@mail.gmail.com>
In-Reply-To: <1098771878.63451.5.camel@localhost>
References:  <20041019111518.1f6a76a4@maya.liquidx.org> <1098771878.63451.5.camel@localhost>

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Thanks!

This seems to be an effective workaround for the problem. However,
what causes it in the first place? I don't recall having a problem
with any of this in the 4.X series (the default buffer worked fine).

-Travis


On Tue, 26 Oct 2004 02:24:38 -0400, Suleiman Souhlal
<ssouhlal@freebsd.org> wrote:
> Hello,
> 
> On Tue, 2004-10-19 at 13:15, Travis Poppe wrote:
> > I've recently noticed a mild sound distortion in XMMS and other
> > applications that output sound. I'm not sure when I started noticing
> > this, but I don't believe it has always been present in the 5.x branch
> > (and if it has, I haven't noticed it up until a month or two ago).
> 
> You should be able to fix it by using a bigger buffer. To do this,
> change line 48 of src/sys/dev/sound/pci/emu10k1.c from:
> 
> #define EMU_DEFAULT_BUFSZ       4096
> 
> To something like:
> 
> #define EMU_DEFAULT_BUFSZ       8192
> 
> and recompile the kernel/modules. If this doesn't work, you can also try
> using an even bigger buffer size, such as 16384, but then, you will have
> a noticeable delay between the time you press play and start hearing the
> music (it shouldn't be too bad, unless you play games).
> 
> Bye.
> --
> Suleiman Souhlal    | ssouhlal@vt.edu
> The FreeBSD Project | ssouhlal@FreeBSD.org
> 
> 
> 
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