Audio output and input coming in one source

[Sivaji]

My mic/aux and music that I play on my computer for background music for stream is all coming in one source. I want to decrease the music ( that I play on my computer) volume to half or less so that viewers can hear what I say but since both sources are going to the same place I am not able to do that. I tried adding audio output source but there is no option to select. How to separate these two so that I can decrease the music volume to half and set my mic/aux volume to 100%. Please help me, I have researched many places but nothing helped.

 

[Sivaji]

My mic/aux and music that I play on my computer for background music for stream is all coming in one source. I want to decrease the music ( that I play on my computer) volume to half or less so that viewers can hear what I say but since both sources are going to the same place I am not able to do that. I tried adding audio output source but there is no option to select. How to separate these two so that I can decrease the music volume to half and set my mic/aux volume to 100%. Please help me, I have researched many places but nothing helped.

In the properties for audio output capture no devices are showing up for me to select the source. How to fix this issue?