From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: problems with mono audio. Date: Thu, 11 Mar 2004 19:10:05 +0000 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <4050B98D.3030104@superbug.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Which devices can a mono stream be played on? It seems that the only device a mono stream can be played on is the "default" pcm device. Devices like "front" and "rear" are stereo only devices. It would be nice if alsa-lib would open one of these devices, and if the application tries to set 1 channel instead of 2, then somehow make alsa-lib do the duplication of the channels. A similar thing should happen for "surround40" device. If 1 channel is asked for, alsa-lib should duplicate it for all channels. If 2 channels are asked for, then alsa-lib should create 4 channels automatically. alsa-lib seems to manage to do this sort of thing for sample rates, and sample formats, why not number of channels ? Cheers James ------------------------------------------------------- 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