From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Shirkey Subject: usb audio sound quality Date: Thu, 07 Nov 2002 05:32:21 +0900 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3DC97C55.6000507@boosthardware.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from www7.networkshosting.com (www7.networkshosting.com [66.96.128.106]) by alsa.alsa-project.org (8.9.3/8.9.3/SuSE Linux 8.9.3-0.1) with SMTP id VAA04005 for ; Wed, 6 Nov 2002 21:43:53 +0100 Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org I have done extensive testing now and can say that the jack quality is exactly the same as the quality from accessing alsa directly with the quattro. Before the merge of the modules jack would not work at all but the sound quality of the quattro was crisp and clean. Now jack has absolutely no problems but the quality is inferior. The sound is distorted for any notes that go over a certain volume threshhold. It's like the more full the sound is the more likely it will distort. I have tested with the output level buttons in and out. The sound quality is much improved but still noticibly distorted when the button is in. This is from the manual: 1/2 "Output Level" switch: In the `out' position, the Quattro Outputs 1 & 2 are set to +4dBu line level operation. Pressing in and engaging this switch sets these outputs to -10dBV line level. -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.djcj.org - The Linux Audio Users guide ======================================== "Um...symbol_get and symbol_put... They're kindof like does anyone remember like get_symbol and put_symbol I think we used to have..." - Rusty Russell in his talk on the module subsystem ------------------------------------------------------- This sf.net email is sponsored by: See the NEW Palm Tungsten T handheld. Power & Color in a compact size! http://ads.sourceforge.net/cgi-bin/redirect.pl?palm0001en