Hi, First of all, thanks for the previous responses that I got. All that was very helpful. More questions here... What is the rational behind ALSA's PCM multichannel playback channel assignment? ALSA appears to be using the following channel assignment: 5.1 Channels Channel Assignment: 0: Front left 1: Front right 2: Rear Left 3: Rear Right 4. Center 5. LFE Is this the only format ALSA supported? Why/how it was selected in the beginning? (Just curious about the history...) I think (not sure, really) the channel assignment for Windows (if it is really one standard there) is: 0: Front left 1: Front right 2: Center 3: LFE 4. Rear Left 5. Rear Right I haven't investigated AC3 (Dolby Digital) yet, anybody knows if there is a format for channel assignment there? I'm looking if there is a solution (application API) provided by ALSA to do channel-mapping. If there is one, I can just ask ALSA to do the "heavy-lifting" of swapping the surround sound channels. If not, I'll iterate through the PCM data, mapping the channels to the format expected by ALSA. I read about channel bindings in configuration files, but that isn't an application API that media application can use and it requires the end users to mess with their system. So, that isn't a real solution. Is there anything else that is available? As always, thanks. -- Daniel Yek ------------------------------------------------------------------------- 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-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
