Mac startup sound: Activate Startup Chime via the terminal

A simple terminal command brings back the classic start-up sound of the Apple Mac. It is still present in many Macs, MacBooks and Co. that are currently still in use, but Apple abolished it with the MacBook Pro models from autumn 2016 (along with the glowing apple). So if you want to have the "Startup Chime" again to hear a startup sound on Mac models from 2016, 2017, 2018, 2019 or newer when booting, simply follow the steps shown here in the terminal;)

Since the MacBook Pro Late 2016, the Mac startup chime is no longer a standard. But it is still included in macOS and has only been muted. It can therefore be reactivated with a terminal command.

Since the MacBook Pro Late 2016, the Mac startup chime is no longer a standard. But it is still included in macOS and has only been muted. It can therefore be reactivated with a terminal command.

Terminal trick: Activate the Mac startup sound on new Apple computers

The macOS startup sound is still included in new operating systems such as macOS 10.14 Mojave and macOS 10.15 Catalina. That's because the systems are also compatible with Mac models that came out before 2016. For models from late 2016, the start sound is simply muted. And this is exactly what the currently functioning terminal trick for reactivating the startup chime aims at. 

The procedure is as follows:

  1. Opens the terminal from the folder Macintosh HD -> Applications -> Utilities or about the Spotlight search
  2. Enter the following command: sudo nvram StartupMute =% 00
  3. Hit Enter to confirm the command
  4. If asked, enter your admin password
  5. Close the Terminal and restart the Mac

Counselor: All Mac operating systems with number and name

Deactivate Mac startup sound: Switch off the boot sound

If you want to achieve exactly the opposite and mute the startup chime, the procedure is very similar. So if the noise has always annoyed you or you have tried the above procedure and now want to go back to the new "normal state", there is also a solution.

To do this, simply use the following steps:

  1. Opens the terminal from the folder Macintosh HD -> Applications -> Utilities or about the Spotlight search
  2. Enter the following command: sudo nvram StartupMute =% 01
  3. Hit Enter to confirm the command
  4. If asked, enter your admin password
  5. Close the Terminal and restart the Mac

As you can see, the playback or non-playback of the Mac startup sound is controlled by a simple mute query (mute = mute). In this case, the value 00 means “No” or “False” and the value 01 means “Yes” or “True”. By the way, you can find more commands to try out in the macOS Terminal here: Interesting and fun commands for the Mac Terminal.

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