Using Google Hangout, the internal microphone of my QuickCam doesn't work.
The Hangout Settings window pops up and tells me the mic may not me switched on, but it is listed in the 'hangout settings'. (Your microphone is not working or is hardware-muted!)
When I check my sound settings the following devices show up:
Output: Analog Output Input: Microphone QuickCam Messanger (sic)
The Applications-tab shows: WEBRTC VoiceEngine for in- and output.
The mic works in other programs, like Skype, and obviously is detected by the GoogleTalk-plugin, but it (the plugin) thinks it's muted.
OS: Ubuntu 13.04
Tested Browsers: Chromium: Version 25.0.1364.160 Ubuntu 13.04 (25.0.1364.160-0ubuntu3) Chrome: Version 26.0.1410.63
I have this problem already for some time, but never really cared because no-one seemed to use Hangouts, but some oversea colleages want to use it.