From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000502]: Mp3+ crackles when on alsa, not when on oss emulation Date: Tue, 30 Aug 2005 20:12:50 +0200 Message-ID: <617648c511669e59e5bd81d8b8d0e0dc@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.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 482ED1C9 for ; Tue, 30 Aug 2005 20:12:50 +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: hhg Assigned To: Clemens Ladisch ====================================================================== Project: ALSA - driver Issue ID: 502 Category: USB - usb-audio Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: Mandrake 9.2 Kernel Version: 2.6.8 ====================================================================== Date Submitted: 09-15-2004 00:44 CEST Last Modified: 08-30-2005 20:12 CEST ====================================================================== Summary: Mp3+ crackles when on alsa, not when on oss emulation Description: this shell-cut-and-paste wil ilustrate my problem: At first when I plug my mp3+ in, it crackles. It is not scraping or static, it is a distinct pop in the sound about 2-3 times/sec not rythmical. The card shows up in alsamixer -c1, and everything about controling it works. Then, without plugging my card in or out, I do this: [root@localhost hhg]# rmmod snd_usb_audio [root@localhost hhg]# modprobe audio [root@localhost hhg]# alsamixer -c1 alsamixer: function snd_ctl_open failed for hw:1: No such file or directory I also have a boult-in intel-8x0-card working fine with alsa. But now the mp3+card works great. Using oss-emulated mixer the card can also be controled. I have to use oss-output, though, as the card no longer is registrered by alsa. even if I do [root@localhost hhg]# modprobe snd-usb-audio alsamixer -c1 fails and the card stil works as an oss-card. ====================================================================== ---------------------------------------------------------------------- jdthood - 08-30-05 12:22 ---------------------------------------------------------------------- Hi. What's the status of this bug. Any improvement in later ALSA releases? ---------------------------------------------------------------------- rlrevell - 08-30-05 20:12 ---------------------------------------------------------------------- I think this is user error. The "audio" module is not related to OSS emulation, it's the real OSS driver, so of course when you remove snd-usb-audio and modprobe audio then alsamixer will not work. Issue History Date Modified Username Field Change ====================================================================== 09-15-04 00:44 hhg New Issue 09-15-04 00:44 hhg Distribution => Mandrake 9.2 09-15-04 00:44 hhg Kernel Version => 2.6.8 09-15-04 13:09 hhg Note Added: 0001760 08-30-05 12:22 jdthood Note Added: 0005974 08-30-05 20:12 rlrevell Note Added: 0005980 ====================================================================== ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf