I mostly use business Skype on work to join online meeting and I take a headset with use/blue tooth in order to not bother my colleagues beside me. Most of time I want to record the online meeting in Skype with voice. The function Record System Audio can only record sound from computer speaker. If I use headset, no voice or audio is recorded. It would be nice to have this feature, it is very very important for most employees.
It's the way Skype works but it can be done.
I don't know the specs or configuration of your system
so I'll just throw a few things on the board that may work.
First just some basics.
There are some options for the audio in the recorder. I'll assume your using one-click
and the bar.
When you select video there will be two audio buttons. One for the system sound and one
for the mic. Click on the mic button.
If your system has a audio card select it and see if that records the sound.
In a lot of Windows machines it's Realtek High Definition Audio
Usually the recorder will grab this even when using headphones. but...
Because of the nature of Skype and recording voices from it you will probably find you still
can't record the audio.
The best way to record Skype is by using a third party Skype recording software ( do a Google for them) or what I recommend is using a virtual mixer. Not only works for Skype but it's useful for bringing together many different audio inputs for instance two mics or a mic and sound effects board.
Here is the one I use and it has worked well. Maybe it will work for your situation if you want to try this route.
If you do try this it will be the input to use in the Snagit audio settings once you install and configure it.
If you click the speaker on the taskbar you can quickly change the soundcard.
Then start the recording and you will get the audio recorded.
This is an ugly hack and mostly show the current inner workings.
One idea would be to add an output selector similar to the input selector shown in Dubie's post.
Better yet, record all interfaces on individual tracks.
You shouldn't have to bother making the correct choice when recording, you should be able to edit out them afterwards.