From owner-freebsd-questions@FreeBSD.ORG Fri Nov 21 07:00:02 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 41E7716A4CE for ; Fri, 21 Nov 2003 07:00:02 -0800 (PST) Received: from hermes.cs.kuleuven.ac.be (hermes.cs.kuleuven.ac.be [134.58.40.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 401ED43FBF for ; Fri, 21 Nov 2003 07:00:00 -0800 (PST) (envelope-from bert.lagaisse@cs.kuleuven.ac.be) Received: from dr-zook.cs.kuleuven.ac.be (dr-zook.cs.kuleuven.ac.be [134.58.41.20])hALExx224110; Fri, 21 Nov 2003 15:59:59 +0100 (MET) Received: from localhost (localhost [127.0.0.1]) by dr-zook.cs.kuleuven.ac.be (Another_good_MTA) with ESMTP id DEEB41BB6B; Fri, 21 Nov 2003 15:59:53 +0100 (CET) Received: from dr-zook.cs.kuleuven.ac.be ([127.0.0.1]) by localhost (dr-zook [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 13973-06; Fri, 21 Nov 2003 15:59:51 +0100 (CET) Received: from iris.cs.kuleuven.ac.be (imap.cs.kuleuven.ac.be [134.58.41.11]) by dr-zook.cs.kuleuven.ac.be (Another_good_MTA) with ESMTP id 0298E1BB69; Fri, 21 Nov 2003 15:59:51 +0100 (CET) Received: from cs.kuleuven.ac.be (mesh.cs.kuleuven.ac.be [134.58.39.127]) hALExoH14172; Fri, 21 Nov 2003 15:59:50 +0100 (MET) Message-ID: <3FBE295F.1080506@cs.kuleuven.ac.be> Date: Fri, 21 Nov 2003 16:03:59 +0100 From: Bert Lagaisse User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rahul Fernandez , freebsd-questions@freebsd.org References: <20031121143136.16478.qmail@web13501.mail.yahoo.com> In-Reply-To: <20031121143136.16478.qmail@web13501.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new-20030314-p2 (Debian) at cs.kuleuven.ac.be Subject: Re: No sound when playing a CD in FreeBSD 4.9 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Nov 2003 15:00:02 -0000 Rahul Fernandez wrote: I am able to hear sound when watching films using mplayer. > Does that not mean that the audio cable is connected to the sound card (in > response to somebody's suggestion)? I will check later that this is the case. > Thanks, Rahul > Trying to simplify the difference: the sound from a mpg/divx/xvid movie is read as data over the IDE cable. then this data is processed by the playersoftware and send to the the right audio codec (e.g mp3), which sends its output to the soundcard driver, which instructs the soundcard (using the PCI or ISA bus) to make some noise. in the case of an audio cd: The cd-drive receives a "play" instruction for track 5 the cd-drive sends the audio it reads directly to the soundcard using the cable between the 2 devices. -- Bert Lagaisse K.U.Leuven, Dept. computer science Address: Celestijnenlaan 200A 3001 Heverlee Belgium Email: bert.lagaisse@cs.kuleuven.ac.be Tel: +32 16 32 78 24