How to get sound effects but disable game music?

[Lumario]

As the title suggests, I want to capture the game sound effects but disable the game music, something similar to what is done here by Shady Penguin: https://www.youtube.com/watch?v=9c0-CsKBk5Y

I'm of the impression that this can be achieved with a 2 channel (using Red and white cables) into your PC from the noise filter? This would make sense for at least Pokemon I would presume - the sound effects are on one channel and the music is on the other?

At present I just use USB audio, but also have a ground loop isolator that is one connection to my sound card as opposed to two separate connections.

If someone could confirm this for me, would be appreciated

[Czar_Yoshi]

That has nothing to do with any external hardware. It'll be possible on a game-by-game basis and you'll have to do something like turn off the music in a settings section of the menu.