From owner-freebsd-multimedia Mon Jun 16 03:49:47 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id DAA28355 for multimedia-outgoing; Mon, 16 Jun 1997 03:49:47 -0700 (PDT) Received: from elch.heim4.tu-clausthal.de (100@elch.heim4.tu-clausthal.de [139.174.244.250]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id DAA28350 for ; Mon, 16 Jun 1997 03:49:45 -0700 (PDT) Received: (from olli@localhost) by elch.heim4.tu-clausthal.de (8.8.5/8.8.5) id MAA25704 for multimedia@FreeBSD.ORG; Mon, 16 Jun 1997 12:49:41 +0200 (MET DST) Message-Id: <199706161049.MAA25704@elch.heim4.tu-clausthal.de> Subject: Re: SB Pro & MPEG audio To: multimedia@FreeBSD.ORG Date: Mon, 16 Jun 1997 12:49:41 +0200 (MET DST) In-Reply-To: <9706160716.AA11966@merlin.ukrv.de> from "Udo Wolter" at Jun 16, 97 09:16:29 am From: oliver.fromme@heim3.tu-clausthal.de (Oliver Fromme) X-Mailer: ELM [version 2.4 PL24 PGP6] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-multimedia@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Udo Wolter : > Can anyone tell me why it's impossible to play MPEG audio with SB PRO cards ? > Is this a problem with the driver or a problem with the program ? > I think it must be a driver problem because I tried mpg123. This program > is able to play MPEG audio with 22kHz, but it was the same crap as > normally. At home I have a SB16 now and everything works fine. Why I can't > play them at work ? Is there a workaround maybe a patch for the SB PRO > driver ? Or maybe it's better to use MS sound system ? mpg123 _requires_ a soundcard capable of playing 16 bit stereo data at 44.1 kHz. Even when using the lower quality options, the data sent to the sound card is still 44.1 kHz. The purpose of that option is to reduce CPU load, not to enable playing with older soundcards. For the same reason, the -m (mono) option still produces stereo output (with both channels being the same). If you need to convert the output data to 22 kHz, 8 bit, mono or whatever, you should use another tool, for example sox(1). By the way, all of that is explained in the manual page. ;-) Regards Oliver -- Oliver Fromme, Leibnizstr. 18-61, 38678 Clausthal, Germany (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de)