Medal clips aren't recording your voice/microphone.
1. Make sure your Microphone has been set to the Default Recording Device in Windows.
1.1 You can do this by pressing the Windows Icon on the Start Bar or your Keyboard. Type in Sound and press Enter. A new pop up window should appear.
1.2 Click on the Recording tab in the new window and find your Microphone.
1.3 Once you have found your Microphone, right-click your device and select 'Set as Default Device'.
That's it! Your Microphone is all set up to be captured in Medal. (Medal may require a restart to recognize the changes)