Hello. I was wondering if someone might be able to help me with the setup I am trying to achieve. I spent the last 2 days reading all kinds of ALSA documentation, so I have some understanding of how things work, but looks like I still need help. GOAL: Create a virtual ALSA sound device that will send the sound to 2 separate sound cards. Just in case, here is a link to my alsa-info output: http://www.alsa-project.org/db/?f=56263629b834fb330ba729b3e3074bd9daa3ec20 Here is the important part though: -------------- 0 [M2496 ]: ICE1712 - M Audio Audiophile 24/96 M Audio Audiophile 24/96 at 0xa800, irq 22 1 [nForce2 ]: NFORCE - NVidia nForce2 NVidia nForce2 with ALC650F at 0xe8080000, irq 17 -------------- pcm.nforce "plughw:nForce2,0" pcm.audiophile "plughw:M2496,0" pcm.both { type plug slave { pcm multi } ttable.0.0 1.0 ttable.1.1 1.0 ttable.0.2 1.0 ttable.1.3 1.0 } pcm.multi { type multi slaves.a { pcm "audiophile" channels 2 } slaves.b { pcm "nforce" channels 2 } bindings.0.slave a bindings.0.channel 0 bindings.1.slave a bindings.1.channel 1 bindings.2.slave b bindings.2.channel 0 bindings.3.slave b bindings.3.channel 1 } -------------- The sound cards work individually. i.e aplay -Dnforce test.wav aplay -Daudiophile test.wav both work. I thought that 'aplay -Dboth test.wav' would do what I want with the above config, but I only get sound on the nforce card. I tried to simplify like this: -------------- pcm.multi { type multi slaves.a { pcm "audiophile" channels 2 } bindings.0.slave a bindings.0.channel 0 bindings.1.slave a bindings.1.channel 1 } -------------- 'aplay -Dmulti test.wav' still produces no sound. However, if I do the same to 'nforce', it works. Conclusion: 'multi' plugin is doing something to the sound that somehow makes it unplayable by my Audiophile 2496 card (even though it's wrapped with 'plug'!) But why? What is going wrong here? What steps can I take to get more info about what is going on? I am still an ALSA noob so *any* advice would be greatly appreciated. Thanks. Val ------------------------------------------------------------------------- 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
