After popular request i've made another video on how to fix this audio glitch in other ways, if you haven't seen my first video on how to fix this glitch check it out here -) • How To Fix Mic Picking Up ALL PC Soun...
PLEASE NOTE- If you are are not seeing Realtek audio manager, this means that your motherboard uses a different sound card and therefor a different audio manager with different software. If you would like to mess around with the settings of your motherboards soundcard to try and get it to work, go to device manager, and then sound, video, and game controllers. Find the name of your audio manager under that and then search up the audio manager on your pc. Then you can mess with the settings from there.