While using the VidGrid recorder, you can capture the audio from your computer in addition to the audio from your microphone. This will capture audio from any video while recording with the recorder.
To incorporate audio from your computer into your recordings on Windows:
On the recorder bar, click on the microphone icon.
Click on "Desktop Audio."
Click on "Primary Sound Output Device."
Note: Not available on Mac OS through VidGrid. There is a 3rd party plugin that will allow you to record your system audio: Record Mac system audio