headsets

Every time I start OBS this happend, I can't hear any sound that comes from my pc with the headsets. These are not broke, I can still watch videos and listen to music with them, but at the time I start OBS, the sound just cut off. I tried to change the settings establishing my headsets as...

I recently bought the Logitech PRO Gaming Headsets, and the Mic source on the audio Input menu won't show up. the pc only has 1 jack for both mic and headset. but the mic works fine. the only options for my audio output are the in build computer mic, and my camera mic. idk what to do. i've tried...