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Date:      Thu, 1 Apr 2004 10:05:42 -0500
From:      Mathew Kanner <mat@cnd.mcgill.ca>
To:        "Karel J. Bosschaart" <karelj@kayjay.xs4all.nl>
Cc:        Mathew Kanner <mat@cnd.mcgill.ca>
Subject:   Re: UT2004 sound problem
Message-ID:  <20040401150542.GG6187@cnd.mcgill.ca>
In-Reply-To: <20040401145806.GA89990@kayjay.xs4all.nl>
References:  <20040331171848.GA86712@kayjay.xs4all.nl> <20040331174206.GE6187@cnd.mcgill.ca> <20040401010159.GA87719@kayjay.xs4all.nl> <20040401141639.GF6187@cnd.mcgill.ca> <20040401145806.GA89990@kayjay.xs4all.nl>

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On Apr 01, Karel J. Bosschaart wrote:
> > > 
> > > Thanks for the quick reply!
> > > 
> > > My sound devices:
> > > 
> > > pcm0: <CMedia CMI8738> at io 0xa400 irq 10 (1p/1r/0v channels duplex default)
> > > pcm1: <Avance Logic ALS4000> at io 0xa000 irq 9 (1p/1r/0v channels duplex)
> > > 
> > > Both sound cards have the same problem.
> > > 
> > > > would suggest that you play with enabling, disabling vchans and see if
> > > 
> > > I tried
> > > 
> > > sysctl hw.snd.pcm0.vchans=4
> > > sysctl hw.snd.maxautovchans=4
> > > 
> > > but it doesn't help. I'm getting a bunch of extra 
> > 
> > 	And setting them to 0?
> 
> Isn't that the default value? Anyway, I tried it and the sound is still
> not good. (Only one 'native_blitbuffer: select error occured')

	It's a little weird.  The default is

	Sound card with one output channel -> maxautovchans=1
	Sound card with multiple output channels -> maxautovchans=0

	Can you also experiment with soft mixing, (I'm forgotting what
we actually call it), y'know auto-rate/format conversion.

	--Mat

-- 
	(on the United States) Living next to you is in some ways
	like sleeping with an elephant. No matter how friendly and
	eventempered the beast, one is affected by every twitch and
	grunt.
			- Pierre Elliott Trudeau



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