StartNinja

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Macs don't have a built-in way to mute or silence the system start up chime. If you’re in a library or coffee shop you don’t always want that start up chime to play. Now you can silence the Mac OS X Lion start up chime with StartNinja. It is a free and simple desktop utility that silences the start up chime and will resume previous sound level after logging in.

 

Note 1: Does not work with iMacs

Note 2: The system start up chime is played through the internal speaker. If speakers or headphones are plugged in the system start up chime will still play.

 

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