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What tools or techniques are available for silencing the start up chime on a Mac? I know this can be accomplished by muting the sound before shutdown, but I was hoping that a solution existed that didn't require me to, you know, remember to do anything.

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    Seriously, why is the default volume for the sound SO LOUD? I mean, you go into a library with a sexy Mac and then boot it up and I'm shocked no one has a heart attack. Jul 15, 2009 at 8:05

6 Answers 6

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Check out the StarupSound prefpane. It allows you to control the volume of and mute the chime.

Note: I have not used its on leopard yet, so I'm not sure if it works. But I can confirm it works in 10.4

Edit: I forgot to mention that you could just hold the mute button on you're keyboard when you hit the power button to disable the sound for that boot.

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    Works on Leopard. Jul 15, 2009 at 8:05
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    works on snow leopard too!
    – JT.WK
    Mar 23, 2010 at 10:19
6

This looks like what you want:

StartupSound.prefPane

It adds a pref pane that you can use to disable the startup sound.

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I use a System Preferences plugin called StartupSound.prefPane . Google around for it. You can set the volume.

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Just hold down the mute button during initial boot time. This mutes the startup chime as well.

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I just keep a headphone jack adapter plugged in when I'm in public places, so the volume is effectively muted and there's no disturbance.

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    On newer Macs, the startup chime will still come from the speakers even if headphones are plugged in.
    – hbw
    Jul 18, 2009 at 11:45
  • Well...that sucks! Jul 18, 2009 at 16:24
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On some older machines plugging in headphones works to disable the startup sound. This doesn't seem to work on my MacPro or my unibody MacBookPro 15".

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