Anyone know how to disable that cheesy startup sound when I power on my Mac?
If it makes a difference, I'm running Mac OS X 10.6.
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I've tried two ways to disable the Start-up songs.
First option is manually stopping the sound by pressing the mute key(F10) every time I wish to shutdown or restart my mac. however, it's the temporary solution.
Another way is using Arcana StartupSound.prefPane.
if you'd installed that one, at your System Preferences >> Other , you'll see "Start Up Sound"
I've tried this one and it really works on my Mac.
OK - I had this problem and it was really annoying.
Why, I asked myself, was the startup sound playing so loudly through the speakers even when I always have my headphones plugged in, and why did it still play so loudly when I had set the volume to the minimum or muted it entirely before shutting down.
Here are the answers to these questions:
(note that you could substitute the word "headphones" in this post with "external speakers", if they are plugged into the headphone jack, I imagine they will have different volume setting to the internal speakers as weill)
sudo nvram SystemAudioVolume=%80
If you get lonely and want to re-enable the startup sound repeat steps 1 thru 3 but use this command instead..
sudo nvram -d SystemAudioVolume
Works like a charm on my '12 Macbook Pro w/ OSX Mavericks. Worked when I had Mountain Lion as well.
This software enables you to control the volume of the startup sound of your Macintosh computer from Mac OS X.
This can also be accomplished using a script to mute the computer on every shutdown (more info here: http://aaron-hoffman.blogspot.com/2014/08/mac-disable-turn-off-startup-sound-boot.html)
Check if any hooks already exist (these will be overwritten, so make sure it is OK for you)
sudo defaults read com.apple.loginwindow LogoutHook
Create script file for muting, with the contents below:
osascript -e 'set volume with output muted'
Make file executable:
sudo chmod u+x /path/to/mute.sh
Add hooks for muting
sudo defaults write com.apple.loginwindow LogoutHook /path/to/mute.sh