Is there a way to record only game sound?

[Abuser]

I am using version 1.17 beta and I was wondering if there is a way to record only game sound?
I tried messing with settings but it always records my teamspeak also.
Anyway to only record game sound? If not maybe implement something to do so?
Thanks.

[radi]

TeamSpeak is considered as a system sound because it's an application, not a sound device.