Q: disable start up sound

I installed StartNinja on my OSX Lion  and once enabled it has now successfully muted my startup sound.

I just installed StartNinja with my system completely up to date with Lion (10.7.4) as of 05.18.12.

And no, it doesn't work. Apple must have updated something to stop its effects since the last post

Hello,

After my 2008 MacBook Pro was being repaired at a Mac repair office, the startup sound completely disappeard. What a joy it was!

(To me this looks like there must be a secret way to switch off the startup sound of the MacBook Pro under Lion.)

... But, then last week the main board was replaced (due to NVIDIA problems) in the same repair office. AND, the startup sound is there again! Oh, dear.

Now, I'm considering to open the Mac myself and cutting the wires off the internal speaker . Has anybody tried that?

Cheers,

Tiitu.

F I N A L L Y !  This is working incase of my 2008 MacBook Pro running OS X 10.7.4:

http://download.cnet.com/Psst/3000-2344_4-54891.html?tag=vtredir

http://www.satsumac.com/Psst.php

I'm on OS 10.7.4 Lion and on a late 2007 Mac Pro 8-core and someone else on these forums offered this solution a while back and it's worked for me.

Go to your System Preferences and choose "Sound" - click on the middle tab on the top "Output", select "Internal Speakers" within the window, then click the checkmark for the "Mute" next to the "Output Volume" on the bottom right.

I use external speakers for the rest of my system, music, etc., and only turn on the speakers after I've turned the Mac on. No startup chime.

If you have a MacBook Pro why don't you just put it to sleep by closing the lid? Generally my MacBook Pro and any other laptops I've owned are only restarted once in a blue moon if there is a kernel panic or if some hardware needs replacing. Onyx will clear out any caches that build up.

Hi,

When i try and do step 2, i copy and pasted what you typed, it gives me a warning and tells me to type in password but doesnt allow me to typ it....
I would appreciate and suggestions.

Thanks,

Zo

I posted earlier:

I'm on OS 10.7.4 Lion and on a late 2007 Mac Pro 8-core and someone else on these forums offered this solution a while back and it's worked for me.

Go to your System Preferences and choose "Sound" - click on the middle tab on the top "Output", select "Internal Speakers" within the window, then click the checkmark for the "Mute" next to the "Output Volume" on the bottom right.

I use external speakers for the rest of my system, music, etc., and only turn on the speakers after I've turned the Mac on. No startup chime.

Addition:

Make sure when you're in the Output tab after applying mute to the Internal speakers, that if you are indeed using external speakers, that you then click on the line below that says "line out / audio line out port" to make sure that is active.

As far as I know it always worked that way on a Mac Pro.  More difficult situation is on MacBook Pro, where most of the people use internal speakers for normal operation.

I have a MacPro IntelCore2Duo, 2.33GH with the latest Lion. 

Nothing worked to this point, but yesterday I installed Psst (it's a 2007 application, but it works with Lion).  After installing it, the start-up sound is GONE, and all sound controls work as they should.

It may not work on some systems, but try that.

Cheers,

Jack

Jack, good point about my suggestion for the sound settings when using external speakers versus the no solutions yet situation for sound setting when in the no-choice-but-to-use-internal-speakers on the MacBooks. Thanks for the tip about Psst.

Great tip for me - thanks a lot.

This script does not work for my 27" mid 2011 iMac

Why??

First off, it's so darn annoying that Apple haven't addressed this issue in all these years!

I have been using StartupSound.prefPane 1.1b3 (http://www.macupdate.com/app/mac/16425/startupsound.prefpane) on my mid-2010 17" MacBook Pro and other Macs for eons. I upgraded to mountain lion and it didn't work anymore. I simply redownloaded and used the uninstaller and then reinstalled it and it was all good again :-).

andressade

If you have headphones connected to your Imac but still hearing annoying startup sound, try following steps:

1.  open "System preferences", Sound and "Output" tab

2. Unplug your headphones and watch "select a device for output" list

3. After a while there should be appearing "Internal Speakers"

4. Check "mute" checkbox from bottom

5. Plug your headphones back, mute checkbox shold change back to unchecked

now startup sound should be muted

This is the one that worked for me.  Thanks, andressade.

Works well in my late 2008 MacBook (when you don't need to hear the loadspeakers). Thank you adressade!

Psst did do the same well too, but sometimes it was stopped (I don't know why) and had to be restarted manually.