Question / Help OBS doesn't detect 7.1

[Sifflex]

I'm new at streaming so any help will be appreciated.
I'm using a 7.1 headset and in my OBS app on audio 7.1 is selected.
However when some sound is played that I can hear in 7.1, only two bars of sound are being triggered instead of 7. (cf picture)

It makes the stream sound like it is coming from a cave.
The "echo" sound stops when I go back to stereo but I would prefer streaming in 7.1
I'm currently using a corsair void pro 7.1, and I think it is using a virtual surround system.
Thanks.

 

[Narcogen]

I think the suggestion you're probably going to get is to turn off the virtual surround. You probably aren't actually listening to a 7.1 source, but a stereo source that your headphones' driver is doing post-processing on to create virtual surround. Since that processing is downstream of OBS, OBS probably doesn't have access to it-- all it has access to is the original stereo audio.

 

[Sifflex]

First thanks for the reply.
I've checked by playing 7.1 games such as Fortnite and OBS is still detecting only stereo.
I'm quite lost

 

[Sifflex]

I found a solution, but still did not understand how it works.
I installed VoiceMeeter Banana and using the software's audio output removed the problem.
However now the audio has a bit of delay (~100ms) which can't be reduced.