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To: Chris Shenton <cshenton@it.hq.nasa.gov>
cc: multimedia@freebsd.org
Subject: Re: 2.1.5R Vat with SB16? 
In-reply-to: Your message of "Wed, 31 Jul 1996 17:29:47 EDT."
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Date: Wed, 31 Jul 1996 14:37:51 -0700
From: Amancio Hasty <hasty@rah.star-gate.com>
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>From The Desk Of Chris Shenton :
> On Wed, 31 Jul 1996 14:18:57 -0700
> Amancio Hasty <hasty@rah.star-gate.com> wrote:
> 
> hasty> Try running on dos to find out what the card is configured for or
> hasty> read the card's documentation and that a peek at the card.
> 
> Eeewww, DOS? We ain't got no stinkin' DOS! (seriously, I'll have to
> hunt-down a DOS-box... Isn't there a way to probe/test this without
> having DOS around?)

Then just read the docs for the card thats probably the surest way
of finding out what you have . And maybe someone who knows the SB16 
cards could step in . 


> hasty> Well, the sound driver's  3.5  on rah have not received a lot of 
> hasty> testing on non-gus cards however if you like feel free to download
> hasty> ftp://rah.star-gate.com/pub/snd01041996.tar.gz
> 
> I'm rebuilding the kernel against it right now. Looks like I didn't
> need to merge the files.i386 from your sound distribution into the
> src/sys/i386/config/files.i386 file...
> 
> 
> hasty> vat uses /dev/audio so you don't need  /dev/sb ;additionally, you 
> hasty> can access /dev/audio or /dev/dsp like any sound card on FreeBSD.
> 
> What's the difference between /dev/audio and /dev/dsp? Should I be
> able to do a "cat sorrydave.au > /dev/audio" or to /dev/dsp?

/dev/audio is a mu-law device and /dev/dsp is an unsigned audio device.

if you cat foo.au >/dev/dsp you will hear garbage.


> 
> hasty> With respect to vat , you will have to compile vat in half-duplex mode
> hasty> because we don't have full duplex dma support for SB thingies.
> hasty> Basically, if you download vat from:
> hasty> ee.lbl.gov:/conferencing/vat/alpha/..
> hasty> compile vat with the default voxware module you will have a half-duple
x
> hasty> vat.
> 
> I've already grabbed your vat-and-half from Rah; is this the same as
> doing what you describe?
> 

Pretty much the same except that vat-and-half is probably and older version
than the one you grabbed. I just haven't bother upgrading vat-and-half.

	Have fun,
	Amancio