This FAQ explains how to turn off user interface sounds on Mac OS X.
The procedure is as follows:
- Click on the Apple menu > Preferences.
- Go to Sounds > Sound Effects
- Uncheck the following option:
- Play user interface sound effects.
This document, titled « Mac OS X - Turn off UI sounds effects », is available under the Creative Commons
license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM