This theoretically COULD be done with USB DACs, but it could be a little iffy. Running a USB DAC is FAR more "touchy" on the Touch, you can get ticks and pops etc quite easily, using TWO of them is going to make this WAY more likely to happen.
The best bet would be very simple 16 bit only DACs, just 44.1, adaptive (NO asynchronous 24 bit DACs need apply for this). DACs that use the 2706 type USB chip would probably work. You would set the ALSA config using the existing method for having the data stream sent to two different DACs, then use amixer to change the volume between then. It might work. You would have to write an applet that got events from the IR system and then ran amixer with the right options to change the volumes. Another major issue is going to be setting the names between the two DACs. With two DACs you are going to have bizzare things happening as to names and card numbers. Someone recently posted a UDEV scheme for properly naming USB DACs, you would need to extend this for two DACs so you could guarantee that ALSA was talking to the right things all the time. So yes it might be possible, but its not going to be trivial. NOTE: I am NOT volunteering to do this! John S. -- JohnSwenson ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=87592 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
