Turn the Mac startup sound on or off
Use Sound settings to turn the startup sound (chime) on or off.
Depending on which Mac and macOS you’re using, you may hear a startup sound shortly after pressing the power button to turn on your Mac. With macOS Big Sur 11 or later, you can control whether your Mac plays this sound.
macOS Ventura or later
Choose Apple menu > System Settings.
Click Sound in the sidebar.
Turn “Play sound on startup” on or off.
macOS Monterey or macOS Big Sur
Choose Apple menu > System Preferences.
Click Sound.
In the Sound Effects pane, use the “Play sound on startup” setting to turn the startup sound on or off.
Earlier versions of macOS
Earlier versions of macOS do not offer a setting to control whether your Mac plays a sound on startup.