While on the internet or using windows media player. If I ave my mic plugged in and I talk or someone else talks it automatically reduces the volume for a short period of time before going back to normal. I went and messed with all the audio options including putting communications to do nothing and it stays.
Running the lastest realtek audio drivers
and this occurs at factory settings level.
Not sure what info would be needed to help me so please ask away anything. I know I stopped this problem at one point in time, but that was awhile ago and I have forgotten how I did it.