post the output of
lsusb -vvvv for your USB audio device if it does not support stereo playback/capture and only support 8 channel playback/capture you need to ask pulseaudio developer how to map those playback volume controls to front, rear, center, lfe and side -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1186512 Title: [USB-Audio - Fast Track Ultra, playback] Playback problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1186512/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
