From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: Re: Urgent question Date: Mon, 09 Jan 2006 11:17:50 +0000 Message-ID: <43C2465E.8070504@superbug.co.uk> References: <0AEFDFCCEC85B24E8051B23293C2CB640F2503@MMMSTCAE1.muac.corp.eurocontrol.int> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <0AEFDFCCEC85B24E8051B23293C2CB640F2503@MMMSTCAE1.muac.corp.eurocontrol.int> 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: PIVATY Bertrand Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org PIVATY Bertrand wrote: >Dear all, > > > >(Happy New Year) > > > >My name is Bertrand Pivaty and I'm a software engineer. > > > >We use an audio software to simulate sound communication on our Air >Traffic Control simulator. > >The sound quality looks good when using the onboard sound card provided, >but when using any PCI sound card the sound quality is really poor. > >Do you have any idea of what could be the reason, or any track where we >should investigate. > > > >The software is running on Suse 9.0 with the last Alsa version. > > > >Do not hesitate if any question. I will not be allowed to send any part >of the software, but I will do my best to answer. > > > >Any comment would be really appreciated. > > > >Many thanks in advance. > > > >Bertrand > > There is obviously a bug in your software causing this. In order to test this, try the "speaker-test" program that comes with alsa-utils. It can send pink noise, a single tone, or a .wav file to the sound card. Another option is "aplay". If these two application deliver sound to the sound card parfectly, then it is most certainly a bug in your software. Without being able to view the source code, there is very little else we can do to help you. If these test programs, cause exactly the same problems that you are getting with your software, we would need more detailed information regarding your hardware. e.g. cat /proc/asound/cards cat /proc/asound/version ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click