HDMI cable audio I'd guess.
Ah, yes, that would make sense. I forgot I'd actually used HDMI for this.
I presume I can disable it/them in Device Man to get rid of them from the list?
Shouldn't need device manager. Sound properties has a 'Don't allow' button which should do the trick. I also use it to remove displays from the list.
@hippy started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
HDMI cable audio I'd guess.