vincent159 0 Report post Posted July 8, 2010 Hi guys, Why whenever i plug in my mic, i hear a ZZZZZZZZZZZZZZZZZZZZZZZZZ sound on the background, this happends only when i tick the microphone boost in my realtek hd audio manager because if i dont do it, my friend cannot hear what im talking. Last time, i didnt use the mic boost but my friend can use, after that i duno what i do to the manager and become very soft for my mic and need to turn on the mic boost. Thanks for help if can. Share this post Link to post Share on other sites