From owner-freebsd-multimedia Wed Mar 15 10:42:32 2000 Delivered-To: freebsd-multimedia@freebsd.org Received: from tele-post-20.mail.demon.net (tele-post-20.mail.demon.net [194.217.242.20]) by hub.freebsd.org (Postfix) with ESMTP id 01CAF37BFEC for ; Wed, 15 Mar 2000 10:41:37 -0800 (PST) (envelope-from gandalf@vilnya.demon.co.uk) Received: from vilnya.demon.co.uk ([158.152.19.238]) by tele-post-20.mail.demon.net with esmtp (Exim 2.12 #2) id 12VIje-000OiA-0K; Wed, 15 Mar 2000 18:41:34 +0000 Received: from NENYA (nenya.rings [10.2.4.3]) by vilnya.demon.co.uk (Postfix) with SMTP id B7A07D9A8; Wed, 15 Mar 2000 18:41:26 +0000 (GMT) Message-ID: <003101bf8eae$123bdcf0$0304020a@NENYA> From: "Cameron Grant" To: "Nick Sayer" , References: <38CF3022.C4D51D23@quack.kfu.com> Subject: Re: Understanding AC97 Date: Wed, 15 Mar 2000 18:41:26 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6700 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700 Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I have been seeing more and more reference to AC97. It sounds to me like > some sort of standardization > for soundcard innards, but I can't find any information about the scope > of the standard. ac97 defines an interface to a codec which sits between an isa/pci audio controller and the analogue world. an ac97 codec handles mixing of various digital and analogue audio sources, generating a final output signal. > Particularly, > my K7M motherboard has a VIA 82C686 AC97 codec on it. 'device pcm' > doesn't pick it up, so there's clearly > more to it. i will have an 82c686 driver shortly. - cg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message