I have been having a probelm with the internal mic on my laptop.
Model: HP Envy m6-1178sa
Operating System: Windows 8.1
I'm not having any error messages and my system is picking up on the fact there is a mic but it isn't registering that any sound is being picked up.
I have followed any guides that I have seen on the forums.
I uninstalled and reinstalled the drivers with restarts.
My internal mic is set as default, gain is 100% and +10db boost, exclusive mode is unchecked etc.
I have also removed any virtual audio devices and 3rd party drivers.
I used to use the mic with Skype and Google Hangouts with no issues, it just seemed to suddenly stop worling.
Any ideas or help would be greatly appreciated.