How to Turn Noise Off on Mac OS X

Are you often bothered by the sound 'clack clack' which often arise from your Mac computer speakers? Even when you play music from iTunes that connected to the Altec Lansing system, the sound is still audible. Yeah, perhaps you could easily put the earphones or mute the volume to muffle the noise, but the steps below will work more effectively:


SHIFT + VOLUME UP/DOWN

By pressing two buttons