It shall be noted that the OP is trying to get audio to work via PCI passthrough.
Have you tried leaving the audio devices in dom0 (not assigning any to the VM), then right clicking on the AppVM on Qubes Manager and hitting the magic "microphone" button? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CAF0bz4Q2M%2BChTBz7sZ1x4qoLHVbUo%2BLgERKHH6V%2BRtRMgw00aw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.