Hi! Back in early 90's (in my teens) i built a soundsystem with 4 speakers where signal to rear speakers was taken by substracting one stereo signal from another and routing it to rear speakers in reversed phase. That is: Front left speaker has left stereo channel. Front right has right stereo channel. Rear left has left stereo channel minus right stereo channel. Rear right has right stereo channel minus left stereo channel. I wonder can this setup be done in alsa? -- Markko Merzin ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user