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From: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Message-Id: <199708261325.PAA00313@labinfo.iet.unipi.it>
Subject: Re: OPTI931 information
To: hasty@rah.star-gate.com (Amancio Hasty)
Date: Tue, 26 Aug 1997 15:25:22 +0200 (MET DST)
Cc: multimedia@FreeBSD.ORG, optimedia@opti.com
In-Reply-To: <199708260223.TAA07018@rah.star-gate.com> from "Amancio Hasty" at Aug 25, 97 07:23:20 pm
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> >From The Desk Of Luigi Rizzo :
> You do software encoding of ulaw to bypass the existing program.

> At least the snd3.5 driver has bits which flag if the card supports
> the audio format. So in your case it should not be hard to implement
> provided of course that you haven't found a work around for your
> problem 8)

so does my driver for the soundblaster, and so I have done yesterday
late night when I decided that the OPTI931 was buggy, but this cuts the
resolution to 8 bits whereas ULAW would have 12-13 (and the codec has
16, but doing 16bit<->ulaw8bit in the driver is a real mess, with the
requirement of large conversion tables and lenghts which must be
recomputed...)

> 	Have fun,

	Not really! :)

	Cheers
	Luigi