On Sat, 14 Jul 2007 19:39:57 +0400 Vladimir <kv11111@xxxxxxx> wrote: > Hello All, > > I have Revolution 5.1 sound card and stereo 2.0 setup. I've > accidentally broken my front connector in the sound card and now I > want to use the other connectors. I've found .asoundrc file which > duplicates front channel to the rear channel on this forum: > http://ubuntuforums.org/showthread.php?t=400268 > > Are the output to the front and rear channel equivalent when using > this .asoundrc or they are different ? > Hi Vladimir, I think you are asking if the quality of the sound will be the same if routed to the back channels of the card. I just looked at the .asoundrc at the link and it looks to me like the output will be the same as long as you use this version that takes front channels and routes them to the back channels at full volume. # upmixing: pcm.ch51dup { type route slave.pcm dmix6 slave.channels 6 ttable.0.0 1 ttable.1.1 1 ttable.0.2 1 <--- routing to rear ttable.1.3 1 <--- at full volume ttable.0.4 0.5 ttable.1.4 0.5 ttable.0.5 0.5 ttable.1.5 0.5 } It does some unnecessary mixing for your case, but you won't hear the difference, it will only make the cpu work a little harder. There is one caveat: That the plugins don't alter the quality of the sound as it passes through them. If you feel like experimenting you could change the ch51dup to ch20dup as follows: # upmixing: pcm.ch20dup { type route slave.pcm dmix6 slave.channels 6 ttable.0.2 1 ttable.1.3 1 } Beyond that you could change the dmix6 to use only 4 channels, 0, 1, 2, 3. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
