From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: correction: audiophile USB stream0 output Date: Fri, 23 May 2003 12:21:32 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <003801c3207b$0c70a140$3700a8c0@jono> Mime-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <003801c3207b$0c70a140$3700a8c0@jono> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Jonathan Gage Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Fri, 23 May 2003 01:58:54 +1000, Jonathan Gage wrote: > > agh, many apologies for my stupidity. posting cat /proc/asound/stream0 with nothing > playing back was a silly, useless excercise :) no, don't worry, it's still useful in many cases. it shows better view than reading the output of lsusb. > here is stream0 while playing back, the > problem seems to be that the later drivers (0.9.3c) are running the card at 96khz > (which results it digital noise) while the older drivers (0.9.0rc5) are running it at > 48khz. I guess this is what the difference in the "momentary frequency" between the > two tests means... is there a way to make the card run at 48khz? (.asoundrc?) what kind of audio (format, rate, channels) did you use? i see the playback and the capture are running in different rates. the reason to get a too high rate is that i disabled the error check in on 0.9.3c (line 408). please remove '#if 0/#endif' there and see what happens. you'll get warning messages (if the driver is compiled with --with-debug option). also, an alternative workaround is to use adaptive out instead of async out mode if both modes exist. of course, it's better to fix the bug of async out mode. thanks, Takashi ------------------------------------------------------- This SF.net email is sponsored by: ObjectStore. If flattening out C++ or Java code to make your application fit in a relational database is painful, don't do it! Check out ObjectStore. Now part of Progress Software. http://www.objectstore.net/sourceforge