option

system.defaults.NSGlobalDomain."com.apple.sound.beep.volume"

# Apple menu > System Preferences > Sound Sets the beep/alert volume level from 0.000 (muted) to 1.000 (100% volume). 75% = 0.7788008 50% = 0.6065307 25% = 0.4723665.

Declarations
Type
null or floating point number
Default
null