Output WITHOUT Monitoring Audio

[Lab Rat]

I've looked all over for a solution to this, and I swear it seems like it should be the simplest thing ever, but I seem to only be able to find solutions to the opposite problem. What I want to be able to do is play a game on my PC or TV, hear the audio coming from the original source (NOT from OBS), but still have OBS transmit that game audio through a screen sharing software like Discord. I'll give a detailed example:

• I want to play Smash with friends on Discord and share my screen and game audio
• I open Smash on my Switch, connected to an HD60S+, connected to my PC
• I open OBS with the HD60S+ as a video capture source (set to monitor and output)
• I screenshare my OBS preview over Discord while playing the game on the TV
• As it is right now, my Discord screenshare is perfect, no doubled audio... BUT Smash audio is now coming through both my TV and my PC (via OBS). I don't want that, I ONLY want it coming out of the TV, I don't want to hear two slightly offset audio sources

If I'm playing a console game on my TV, there is a potential easy "fix:" mute my TV and only listen to my OBS audio. I really don't want to do that because there's a tiny delay that genuinely throws me off a little with fast-paced games, and I feel like the quality isn't as good. Maybe I'm wrong, but additionally, that fix doesn't apply if I'm playing a PC game and want the same thing. I obviously don't want to hear double audio from both the source game and OBS. I can't mute the source game audio because then it doesn't get sent to OBS, and I can't mute OBS because then it doesn't get sent to Discord. I feel like there should be an option to set an audio source as "output without monitoring," but as far as I can tell, there's no such thing (I hope I'm wrong lol).
Basically, I want a way for OBS to not play game audio out loud to me, but for it to still "send" it to screensharing/streaming applications. I'm NOT experienced when it comes to audio, so I might have to ask follow-up questions about even simple terminology, sorry!

 

[dqm]

In Advanced Audio Properties you have three options for each audio input: monitor off, monitor only, monitor and output. It sounds like you want monitor off.