Is there a way to only record a game's audio?

[Resirek]

I like to listen to music while PvPing and be in Ventrilo at the same time talking to friends and I don't want either their voices or the music in the video, but I definitely want game sound, so I can combine music over it later in a non-clashing way.

[Bandicam Company]

Hello Resirek,

Unfortunately, we don't have a good solution at the moment.
We've forwarded your request to the development team.

Thank you for suggesting it.