Question / Help Two avermedia cards in one PC

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kckoch

New Member
I have two avermedia cards in one PC so I can capture my brothers game (he is on the PC with the two avermedia cards) and my PC. The issue I'm having is when we are streaming sounds are overlapping. How can I mute a video capture device?
 
Ah, its probably because he plays/works on that PC. OBS will grab the desktop sound. I was confused by the 2 Avermedia Cards.
Technically you only need one to capture your PC`s Video material. To capture your brothers desktop you could use monitor/window/game capture in OBS right away, to save resources. The sound will be a bit complicated:
  • If you want to capture your desktop sound, you have to send it over hdmi to your brothers PC and he aforementioned audio setting has to be set to "Use Device Audio" (output to stream only). And you probably want to mute the desktop sound in the OBS interface to mute your brothers deskop sound.
  • If you want to capture your brothers desktop sound, disable the audio of your avermedia and just let OBS record the PC`s audio device
Hope that helps!

And if you are wondering why I would recommend to use only one Avermedia card:
R1CH said:
There's no point using a capture card on a single PC. The only possible use is to capture the entire screen when circumstances don't allow otherwise (eg capturing a game which is highly incompatible with hooks)

Single PC with game capture:
GPU Output -> GPU -> GPU Render -> System Memory -> Encode -> Stream

Single PC with capture card:
GPU Output -> Capture Card -> PCI Bus -> System Memory -> GPU -> GPU Render -> System Memory -> Encode -> Stream

Dual PC with capture card:
PC1 (Gaming): GPU Output -> Capture Card
PC2 (Encoding): PCI Bus -> System Memory -> GPU -> GPU Render -> System Memory -> Encode -> Stream

As you can see, with the dual PC setup, you offload a lot of the work onto the 2nd PC, so it provides a large CPU reduction on the PC you're gaming on. This is the only situation in which a capture card makes sense for PC games.
Click to expand...
So, one capture card is needed, but the other uses parts of your system that dont have to be used.
 
Okay. So I will only use one Avermedia card to my capture my PC and game capture for my brothers game. The sound on my PC is fine so now I just have to understand how to mute my brother’s desktop sound for when I'm on the "main screen". I have look for an option but cannot find anything.
 
You have the two volume sliders on the main obs interface, the left is the microphone, the right is the desktop sound, sound that comes from your avermedia capture card should not be muted if you mute the desktop sound (which should be the sound from your brother).
 
Thanks Jack0r. Looks like that did the job. I wish I would have came here before buying another Avermedia capture card but I love extra hardware anyway. I will always come here for help first from now on. Thanks for the time and help.
 
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