From owner-freebsd-questions@FreeBSD.ORG Tue May 30 23:49:15 2006 Return-Path: X-Original-To: questions@freebsd.org 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 784D616AE91 for ; Tue, 30 May 2006 23:49:15 +0000 (UTC) (envelope-from reitz@eecs.cwru.edu) Received: from beta.eecs.cwru.edu (beta.EECS.CWRU.Edu [129.22.150.110]) by mx1.FreeBSD.org (Postfix) with ESMTP id BFED743D4C for ; Tue, 30 May 2006 23:49:14 +0000 (GMT) (envelope-from reitz@eecs.cwru.edu) Received: from brak ([::ffff:129.22.151.63]) (TLS: TLSv1/SSLv3,168bits,DES-CBC3-SHA) by beta.eecs.cwru.edu with esmtp; Tue, 30 May 2006 19:49:13 -0400 id 000AC02B.447CD9F9.000008C8 Date: Tue, 30 May 2006 19:48:03 -0400 (EDT) From: Andy Reitz X-X-Sender: reitz@brak To: Mac Newbold In-Reply-To: <20060530171512.O26913@bas.flux.utah.edu> Message-ID: References: <20060530171512.O26913@bas.flux.utah.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: questions@freebsd.org Subject: Re: audio playback glitches while using CD drive X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 May 2006 23:49:16 -0000 On Tue, 30 May 2006, Mac Newbold wrote: > > For quite a while now I've put up with this annoyance, and finally decided > to see if I can find anything about it or how to fix it. Google didn't > turn up anything that I could find, so hopefully someone here might be > able to help or point me in the right direction. > > My FreeBSD workstation, currently running 5.5-PRERELEASE though this > happend with various 5.x versions, can't seem to use the > CD-ROM/CD-RW/DVD-RW drive at the same time that it is trying to play an > audio file, like an mp3. I'm set up using the esound daemon, esd, and play > mp3s using mpg123 usually, though other sounds (from gaim, xmms, etc.) are > affected too. Whenever I use the drive, whether using abcde/cdparanoia to > rip or using cdrecord or growisofs to record, I get lots of glitches in my > audio. The glitches come in the form of cracking, crackling, popping, and > other distortion, in addition to slowing down the playback due to the > breaks in it. I get similar crackling and popping while the hard disk > drives are under heavy use, like when rsnapshot/rsync are running backups. > I've confirmed that high CPU usage isn't the cause, because when I don't > use the drives heavily, but am using the CPU a lot, it doesn't occur, like > when lame is encoding an mp3. > > Most of the times my CD/DVD drive is in heavy use, my hard disk is also > being heavily used, so maybe that has something to do with it. > > I've tried turning up the buffering of the audio in the mp3 player to > extreme levels, such that it probably has buffered the entire song, but it > still doesn't help the problem, not even before the buffer is used up. > > Any suggestions or ideas of what might be causing this or what might help > fix it are welcome. Has anyone seen or heard anything like this before? Hi Mac, This doesn't sound like a FreeBSD problem to me, but rather a problem with your sound card being starved for PCI resources when your IDE controller is being exercised. To remedy this, you may need to play around a bit. I found a KB article at creative that seems to cover this topic in a general fashion: http://dmzweb4.europe.creative.com/SRVS/CGI-BIN/WEBCGI.EXE/,/?St=173,E=0000000000127129525,K=5503,Sxi=1,Kb=ww_english_add,VARSET=ws:http://us.creative.com/,Case=obj(6516) Good luck, -Andy Reitz