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fessen

macrumors regular
Original poster
May 4, 2011
104
12
One of the features I have most hated in Mac OS X: whenever the computer boots up, it announces it's alive. Extremely annoying if you are trying not to disturb other people around you (classrooms, libraries, airplanes, late at night at home, etc).

I've seen several suggestions for how to disable the startup chime for Mavericks and previous OSX versions. One is to install a third-party app, like StartNinja, but I did not want to do that.

Another recommended option is to mute the volume before each time you shut down the computer. Good luck with consistently remembering to do that.

Another option is to execute in terminal:
Code:
sudo nvram SystemAudioVolume="%00"
[Another article says "%00" should be "%80".]

That would be great, except it did not work for me at all.

The one thing that has worked without requiring a third-party app -- a one-line script set to run at startup that sets System Volume to 0.

Code:
#!/bin/bash

osascript -e "set Volume 0"

http://grammarofdev.blogspot.com/2014/01/disable-mac-start-up-chime-in-os-x-109.html
The instructions in the linked blogpost describe how to arrange for the script to be executed each time the computer boots.
 
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