I've had my Asus N56VV-S4021H for about 1 year and a half. It runs Windows 8.1.
Recently, it started making a sound every time I touch it. Whenever I type, knock on the laptop's case, touch the screen, etc., the speaker makes a corresponding echo. When I turn the volume down, the echo is weaker and when I turn off the volume completely, I can't hear it at all. I don't know what happened.
Can anyone help me get rid of these bizarre sounds?