From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001015]: Static when not playing through the OSS Emulation Date: Fri, 30 Dec 2005 05:20:48 +0100 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [85.132.177.35]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id A0689193 for ; Fri, 30 Dec 2005 05:20:48 +0100 (MET) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org The following issue has been RESOLVED. ====================================================================== ====================================================================== Reported By: wintermute77 Assigned To: rlrevell ====================================================================== Project: ALSA - driver Issue ID: 1015 Category: PCI - ice1724 Reproducibility: always Severity: major Priority: normal Status: resolved Distribution: Gentoo Kernel Version: 2.6.10-ck5 Resolution: fixed Fixed in Version: ====================================================================== Date Submitted: 03-25-2005 04:00 CET Last Modified: 12-30-2005 05:20 CET ====================================================================== Summary: Static when not playing through the OSS Emulation Description: I get crackling static coming in when sound is being output to my speakers (not when there is nothing playing) using the ice1724 driver with my M-Audio Revolution 7.2. The problem appears to go away if I use OSS emulation, but of course this isn't desirable since I cannot use dmix in this case. I am using xmms and mplayer to produce the badness. ====================================================================== ---------------------------------------------------------------------- wintermute77 - 03-26-05 00:50 ---------------------------------------------------------------------- I appear to have resolved my problem. I upgraded to 2.6.11-ck2 (which I think had a newer alsa in the kernel) and used the following dmix configuration, and it worked flawlessly (so far): /etc/asound.conf pcm.ossmix { type dmix ipc_key 1024 slave { pcm "hw:0,0" period_time 0 period_size 1024 buffer_size 4096 # buffer size < 6653, but pow(x, 2) rate 44100 # we want to play CDs only } bindings { 0 0 1 1 } } # Everything shall be dmixed, so redefine "default": pcm.!default { type plug slave.pcm "ossmix" } # OSS via aoss should d(mix)stroyed: pcm.dsp0 { type plug slave.pcm "ossmix" } ctl.mixer0 { type hw card 0 } ---------------------------------------------------------------------- wintermute77 - 03-26-05 00:52 ---------------------------------------------------------------------- Also, it appears the static comes back if I remove the "rate 44100" line. Issue History Date Modified Username Field Change ====================================================================== 03-25-05 04:00 wintermute77 New Issue 03-25-05 04:00 wintermute77 Distribution => Gentoo 03-25-05 04:00 wintermute77 Kernel Version => 2.6.10-ck5 03-25-05 14:57 daspooky Note Added: 0004207 03-25-05 14:58 daspooky Note Edited: 0004207 03-26-05 00:09 wintermute77 Note Added: 0004214 03-26-05 00:50 wintermute77 Note Added: 0004215 03-26-05 00:52 wintermute77 Note Added: 0004216 12-30-05 05:20 rlrevell Status new => resolved 12-30-05 05:20 rlrevell Resolution open => fixed 12-30-05 05:20 rlrevell Assigned To => rlrevell ====================================================================== ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click