From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001058]: CMI9880 sometimes produces distorted sound Date: Tue, 19 Apr 2005 17:47:02 +0200 Message-ID: <5976b043c911997367f23213e116a2bb@bugtrack.alsa-project.org> 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 [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id 6ACFA18C for ; Tue, 19 Apr 2005 17:47:02 +0200 (MEST) 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 A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: ahessling Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 1058 Category: OTHERS Reproducibility: always Severity: minor Priority: normal Status: new Distribution: Gentoo Kernel Version: 2.6.11.6 ====================================================================== Date Submitted: 04-16-2005 16:37 CEST Last Modified: 04-19-2005 17:47 CEST ====================================================================== Summary: CMI9880 sometimes produces distorted sound Description: I am using the CVS version of alsa-kernel from a few days and because of the soundchip CMI9880, I have to activate Intel HDA in the kernel. Sound is working quite fine in stereo mode, but if I want to play a DVD with 5.1 sound, all speakers are activated but the sound is a little bit distorted. xine uses plug:surround51:0 as the surround device. My asound.conf looks like this: pcm.!default { type plug slave.pcm "svol" } pcm.svol { type softvol slave.pcm "hw:0,0" control { name "PCM Playback Volume" } } I also tried the one from http://www.sabi.co.uk/Cfg/ALSA/ Again, stereo sound works fine and also dmix does its work, but this time I only get stereo sound in xine although the same configuration of xine is used. I also noticed that playing some files using aplay produces the same distortions, e.g.: aplay /usr/share/sounds/k3b_success1.wav Playing WAVE '/usr/share/sounds/k3b_success1.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono Seems to have to do something with sample rate. Using the other asound.conf from the homepage above just gives an error: Playing WAVE '/usr/share/sounds/k3b_success1.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono aplay: set_params:857: Sample format non available Is there a way to play 5.1 sound without these distortions? Maybe some lines added to my asound.conf would do the work. Thanks in advance! Regards, André ====================================================================== ---------------------------------------------------------------------- tiwai - 04-19-05 17:47 ---------------------------------------------------------------------- The noise from aplay with a low-rate sample might be the bug of rate plugin that was fixed recently. Try 1.0.9rc2. Issue History Date Modified Username Field Change ====================================================================== 04-16-05 16:37 ahessling New Issue 04-16-05 16:37 ahessling Distribution => Gentoo 04-16-05 16:37 ahessling Kernel Version => 2.6.11.6 04-19-05 17:47 tiwai Note Added: 0004527 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728