From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joachim Deguara Subject: Re: rme 9632 crackling when sound > 0db Date: Tue, 13 Apr 2004 08:37:39 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <407B8AB3.2030407@idmt.fraunhofer.de> References: <407A5F99.4040201@wildgooses.com> <407A6A6B.2070201@wildgooses.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mailgw1.fraunhofer.de (mailgw1.fraunhofer.de [153.96.1.62]) by alsa.alsa-project.org (8.9.3/8.9.3/SuSE Linux 8.9.3-0.1) with ESMTP id IAA11972 for ; Tue, 13 Apr 2004 08:37:46 +0200 In-Reply-To: <407A6A6B.2070201@wildgooses.com> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Ed Wildgoose Cc: ALSA development List-Id: alsa-devel@alsa-project.org The good news: you don't have a driver problem! But it sounds like you have a Wordclock problem. Namely, your rme 9632 has a different clock than your playback device (D/A) and they are not in Sync. Check the setting for who is (and should be) Wordclock Master and take adjust accordingly. You can set the mode of synchronisation for you card by editing /etc/asound.state and the running "alsactl restore". -joachim Ed Wildgoose wrote: > >> >> You can also simulate this simply by turning up the mixer controls so >> that normal music starts to clip. Same effect. > > > > > At risk of creating noise. Further experimentation shows that you need > to set the output levels to +4db in hdspconf for this crackling to > occur. So in fairness this could really be an overdriven output...? > > The -10dbv output level is significantly quieter than any other > equipment that I own (I know it's what they call consumer output device > level, but still...) > > Ed W > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-devel -- Joachim Deguara Email: dga@idmt.fraunhofer.de Fraunhofer IDMT, Langewiesener St. 22, 98693 Ilmenau, Germany Phone: +49 3677/69-4851 Fax: +49 3677/69-4399 ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click