From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000258]: Recording from line-in produces noise Date: Wed, 17 Nov 2004 19:21:19 +0100 Message-ID: <2fa1abe9c74c4c27e60ca366dd09b5b7@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 6E9D51D2 for ; Wed, 17 Nov 2004 19:21:19 +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 A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: Fancia Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 258 Category: PCI - emu10k1 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Debian Kernel Version: 2.4.22 ====================================================================== Date Submitted: 05-06-2004 22:03 CEST Last Modified: 11-17-2004 19:21 CET ====================================================================== Summary: Recording from line-in produces noise Description: Attempting to record audio from the sound card's line-in port causes audible pops and crackle in the resulting recording, regardless of recording software used. These artefacts are not present in the input itself and are not audible during the recording itself, but are present in the resulting recording. I've tried recording from several different devices on the same line-in port, and the noise is consistent. I've spoken to several other AmigaOne owners with the same sound card, all of whom can reproduce the problem. Attached is a recording from my Roland MT-32 synthesizer module. Aside from normalization, it's unaltered from the original recording. ====================================================================== ---------------------------------------------------------------------- Fancia - 05-06-04 22:14 ---------------------------------------------------------------------- Uploading seems to be causing some trouble; here's a link to the recording on my university webspace: http://is2.dal.ca/~br263779/testtune3.ogg ---------------------------------------------------------------------- rlrevell - 11-17-04 19:21 ---------------------------------------------------------------------- Can you verify this bug still exists with latest ALSA version, 1.0.7? Issue History Date Modified Username Field Change ====================================================================== 05-06-04 22:03 Fancia New Issue 05-06-04 22:03 Fancia Distribution => Debian 05-06-04 22:03 Fancia Kernel Version => 2.4.22 05-06-04 22:05 Fancia Issue Monitored: Fancia 05-06-04 22:06 Fancia Issue End Monitor: Fancia 05-06-04 22:14 Fancia Note Added: 0001064 11-17-04 19:21 rlrevell Note Added: 0002440 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by: InterSystems CACHE FREE OODBMS DOWNLOAD - A multidimensional database that combines robust object and relational technologies, making it a perfect match for Java, C++,COM, XML, ODBC and JDBC. www.intersystems.com/match8