I have a Logitech Quickcam Vision Pro (Quickcam Pro 9000) and Skype doesn't detect it.
When I start
pavucontrol, the only place I can find the microphone is in "Configuration", where it is listed as:
QuickCam Vision Pro
Profile: Analog Mono Input
It is not visible in the input device list:
Audacity does see the microphone as:
USB Device 0x46d:0x9a6: Audio(hw:2,0): FrontMic:0
Skype only sees PulseAudio in Options -> Audio.
My Xubuntu version is: 14.04, Kernel: 3.13.0-45-generic.