On Wed, May 09, 2018 at 04:06:41PM +0200, John Wilkes wrote: > > OpenBSD 6.3 (GENERIC.MP) #107: Sat Mar 24 14:21:59 MDT 2018 > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
There were a lot of changes in usb audio support, please try -current or at least OpenBSD 6.5
