On Mon, 11 Sep 2006 23:57:34 +0100 Jochen Voss <[EMAIL PROTECTED]> wrote:
> Hello, > > do you have a M-Audio Revolution 5.1 card? Do you have a microphone? > If the answer to both questions is "yes", you could help to improve > the ALSA support for this card by doing a little experiment: > > With ALSA version 1.0.12 or newer, recording with the card is supposed > to work. In alsa-mixer you can find a capture volume stereo control. > > The problem: For me, left and right capture volume are interchanged. > For example when I set left=0%, right=100% and try to record something > from the microphone, I only get sound on the left (= wrong) channel. > > I would like to find out the cause of this problem. Possibilities: > > a) maybe I made a stupid mistake somewhere? > > b) or maybe my copy of the card is somehow broken in a weird way? > > c) or maybe it is a bug in the driver? > > So my question is: Can you reproduce this behaviour on your machine? > This would help to rule out possibilities a) and b). > > Many thanks, > Jochen I have 7.1, not 5.1, and there are no capture volumes, just the playback ones. There is no HW ADC gain control on 7.1. Can it be that your speakers are swapped (left <-> right) ? Or 5.1. is indeed more advanced ? By the way, typically microphone inputs are mono - the plug has only three wires - ground, signal and power - the latter is needed because PC microphones are typically electret ones. Stereo recording is expected to work from Line In input though. --Sergei. -- Visit my http://appsfromscratch.berlios.de/ open source project. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/alsa-user
