Welcome To The Freedom Family!
I Got PS4!
I Play Games Alot, But My Channel Focuses On Tech More Than Gaming.
Check Me Out. https://www.youtube.com/channel/UCTMkqKp_fC1zoZWLTRrtRJA
If Your Using Console, You Should Be Able To Go In The Settings.
Elgato Should Split The Audio for you. and just use Sony Vegas To Delete The Audio, then use audacity to record over.