disable start up sound

mialemat wrote:

Doesn't work on my iMac early 2009 😟

That's too bad...

If you wish, you could try submitting your configuration to the developers, and let them check what is making the app not to work.

(When you open Psst, under the main menu there is the "Submit Configuration" item to click)

I pretty sure Psst works the same way as the AppleScript in my Aug 18 post. Just a more elegant package.

I'm agree with you.

I think PSST is an elegant way to create and activate the files.

IMHO I think the only solution is to try to edit / modify the EFI Firmware but I can't find an editor on Internet.

Bye.

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 🙂

I figured out what might be wrong for a lot of you after some testing. StartupSound.prefPane does work you just have to set it up correctly. Here is what I did:

1. Enable the root user. Use the following instructions and when you do use the Directory Utility...it's easier.

http://www.macosliontips.com/tips/enable-root-account-in-mac-os-x-lion.html

2. Once you have the root user enabled. Go to System Preferences> Other> Startup Sound while still logged in as the root user.

3. Check the "Turn onstartup volumecontrol" box.

4. Turn the "Startup volume" all the way down.

5. Check the "Mute" box.

6. Shutdown (don't restart) your mac and from now on the startup sound should be muted regardless of whether you shutdown or restart.

7. Make sure to keep your root user enabled. Disabling it disables StartupSound.prefPane.

The few problems I was having was that I was just restarting and I had the mute box checked but didn't have the volume turned all the way down. It seems dependent on the volume being turned all the way down and making sure you shutdown once.

Hope this helps some people.

I agree!! This is the simplest and best way to disable startup sound. All the other stuff is making a simple solution very complicated. Thanks andressade!!!

FWIW: MacPilot has a feature to mute the startup chime and it works in Lion. I don't work for them, just love the app.

After searching for all the soluitons, Andressade's instruction is the easiest way to disable the startup sound on my Imac Lion OS. Thanks Andressade now my problem is solved yes!!! 😎

Andressade you saved my life.

Thank you very much.

I putted my iMac back in my bedroom and my wife can sleep without any boring noise.

Thanks a lot.

Thanks andressade. This worked great on my imac 27

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 🙂

What's wrong in my iMac?

Since the third boot I can't mute anymore startup sound.

I repaired permissions and resetted PRAM.

I tried to follow the Andressade's Instructions and...... the boring sound comes out the internal speakers each time I reboot!!!

Andressade's instructions worked only three times for me.

😠 😠 😢 😢

my iMac: 24" Early 2009 - Intel Core 2 Duo - 2,66 Ghz - 8Gb Ram - 640 Gb Internal HD - NVIDIA GeForce 9400 -256 Mb - Mac OSX 10.7.1

I turn the volume down and there is no start chime, I'm running 10.7.1

This AppleScript mutes the internal speakers (startup sound volume). Substitute your password.

do shell script "osascript -e 'set volume with output muted'" password "yourPassword" with administrator privileges

This sets the internal speakers volume to 50%, which is what I use.

do shell script "osascript -e 'set volume output volume 50'" password "yourPassword" with administrator privileges

mialemat,

what happens if you open "System preferences", Sound and "Output" tab, unplug your headphones (i fyou have any), check mute checkbox, without pluging headphones back restart your mac.. After restarting is mute checkbox still checked ? If not then i suspect you should have some startup script or program that unmutes internal seaker

This is a very strange behaviour in my mac.

System Preferences->Sound->Output-Internal Speakers->Muted and no external speakers plugged in.

Restarted mac and no sound.

Restarted again and sound is back again.

System Preferences->Sound->Output-Internal Speakers->and Mute checkbox is checked!!!!

in terminal I did a sudo defaults read com.apple.loginwindow LoginHook and here is the followind answer:

The domain/default pair of (com.apple.loginwindow, LoginHook) does not exist

System Preferences->Users and Group->Login Items here is what I can see:

iTunesHelper (hidden)

Hyperdock Helper

Vmare Fusion Helper

Shades

MagicPrefs

I don't know what's wrong.

I'm trying to read logs to figure out a kext / script which try to set on the volume and back muted when lion is completed started.

I' don't know what else I can do to solve my problem.

(all permissions are repaired with disk utility and no file corruption in my volume).

Thanks in advance for any kind of support.

😮