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Date:      Wed, 17 May 2000 06:25:41 +0200
From:      Gregor Moeller <gmoeller@HTWM.De>
To:        freebsd-stable@FreeBSD.ORG
Subject:   Re: 4.0-STABLE and sound
Message-ID:  <20000517062541.A47633@sulaco.mcn.htwm.de>
In-Reply-To: <20000516152656.B8258@pir.net>; from pir@pir.net on Tue, May 16, 2000 at 03:26:56PM -0400
References:  <39214A3B.C73230E4@thehousleys.net> <20000516152656.B8258@pir.net>

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On Tue, May 16, 2000 at 03:26:56PM -0400, Peter Radcliffe wrote:

> I'm having some odd problems with my Creative ViBRA16X;
> 
> sbc0: <Creative ViBRA16X> at port 0x220-0x22f,0x330-0x331,0x388-0x38b
>  irq 5 drq 1,3 on isa0
> sbc0: setting card to irq 5, drq 1, 3
> pcm0: <SB DSP 4.16 (ViBRA16X)> on sbc0
> 
> It seems to mostly work, but xmms is producing static a lot of the time
> on the same mp3s that work ok on another 4.0-S machine with a SBLive.

Exactly the same odd thing here:

sbc0: <Creative ViBRA16X> at port 0x220-0x22f,0x330-0x331,0x388-0x38b 
irq 5 drq 1,3 on isa0
sbc0: setting card to irq 5, drq 1, 3
pcm0: <SB DSP 4.16 (ViBRA16X)> on sbc0

(on freebsd 4.0-stable with kernel sources from 05-16-2000)

When starting playback of a sound file in 1 of 3 cases there will be
loud static. Stopping the player and then continuing playback mostly
helps. No matter if using xmms, gqmpeg, mpg123, realplayer etc.

The chance for getting this noise is higher by using gqmpeg or xmms,
because they seem to detach/reattach to the sound device after every
song. with mpg123, once the playback of the first song in the list is
ok, there won't be a problem with the remaining songs.

There is a problem report about this:

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=17923

Btw: in fbsd 3.x i got the same loud static when the sound output
continued after it stopped due to high load on the machine. This
doesn't occur on 4.0 anymore.

cu,
Gregor


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