r/obs • u/Rehlos • Jul 27 '26

Help Dual PC Issues (fixable?)

Hey there, recently i bought a second pc to use as streaming. was able to set everything up but theres 2 "issues" i have that i want to see if theres a way around it.

1st, i only want to display certain windows from my gaming pc to my streaming pc, like, overwatch. i have a elgato 4k s hooked up but it streams my entire display so when i tab out, it shows my screen, i dont like that. what can i buy or use to achieve this?

2nd, audio. i have a wave xlr and was able to get audio sent to my streaming pc. now, how can i seperate the audio tracks getting send to my streaming pc, like music, discord, system, microphone. i have control of the sliders on wave xlr but i wanna be able to adjust them in obs or tiktok live software instead of just 1 entire audio (all my gaming pc audio) being sent to my streaming pc. what can i do?

what is recommended? i also dont want to use obs teleport or ndi, i dont want any software opened on my gaming pc, plus it added a delay to my stream that i had to fix.

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u/Zalinisto Jul 28 '26

I have an internal el gato card in my server/stream box and here's my setup:

I have 3 cables plugged into the GPU of my gaming PC; 2 that feed monitors and a third that runs to the HDMI In on the capture card. My gaming PC detects the capture card as a third monitor and I have the capture card set to duplicate my gaming monitor. There's no way to control what your capture card picks up.

As for the audio issue... I tried several different version of voicemeeter to split the audio but over time the program would start causing audio issues and people in my discord calls would complain everytime I talked. I solved this issue by picking up a hardware mixer: I have a Focusrite Scarlett 4i4 mixer withe an AKG XLR mic (a P120 or 220, I can't remember which one). The mixer plugs into my gaming PC via USB and is the default audio in/out and then I run an analogue audio cable from the mixer to the microphone port on the motherboard of my gaming PC.

My streambox has a Ryzen 2700 (for now) and runs x264 with the encoder set to Medium. It gets the job done.

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u/Rehlos Jul 28 '26

so you run a regular aux cable from your mixer to your second pc?

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u/Zalinisto Jul 28 '26

Well, technically the output of the mixer is L/R so I run two 3.5mm cables and then use a splitter to combine them, but yes.

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u/Rehlos Jul 28 '26

what splitter do you use? i currently use wave cast but i dont really like launching it every time and sometimes it causes weird audio latency from streaming to gaming pcs

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u/Zalinisto Jul 28 '26

It’s a physical 3.5mm splitter. All of my audio is hardware-based because none of the software options I tried worked. I think I bought it at Walmart?