By default, the MacBook Pro with TouchBar does not have a startup tone.
Although it was a core part of Apple's product marketing and was a Mac-related iconic sound, Apple removed this sound in the 2016 product update.
But now users find that it takes just a simple terminal command to return this iconic tone.
This sound seems to be reintroduced in the macOS Catalina update, but it remains silent by default. A Twitter user discovered this and shared a video and a sudo command that would bring it back online.
This command can be used on most devices, but it cannot be enabled normally on the 2018 Mac Mini with a 10G network card, but it can be enabled correctly on the 2018 i7 Mac Mini with a Gigabit network card.
Similarly, it will run on the 15-inch i9 MacBook Pro in 2018, but not on the 2016 i7 15-inch MacBook Pro. And foreign media works correctly on all newer iMac devices.
Steps to turn on the Mac startup sound:
1. Open the application folder
2. Open the utility folder
3. Launch the terminal application
4. Type sudo nvram StartupMute =% 00 in the terminal and press Enter
If you want to keep the default mute state again, you can enter “sudo nvram StartupMute =% 01” in the terminal to restore.
