UI Sounds

What Are UI Sounds?

UI sounds are the short audio cues built into digital interfaces to confirm actions, signal events and give software a tactile, responsive feel: keyboard clicks, send whooshes, error tones and notification alerts. Typically under a second long, they are functional first, yet collectively form one of a brand’s most frequently heard sonic touchpoints.

UI Sounds in Practice

UI sounds are the fastest-growing surface for sonic identity, because brands now meet their audiences inside apps far more often than in adverts. The iPhone keyboard click is arguably one of the most frequently heard sounds on the planet, while Slack’s default notification, a knuckle tap the company calls Knock Brush, is instantly recognisable across open-plan offices worldwide. Good UI sound design balances utility and restraint: cues must be informative at low volume, pleasant on the thousandth hearing, and consistent with the brand’s wider sonic DNA. The discipline overlaps with earcons, notification sounds and haptic audio, and increasingly the same motif that ends a television commercial is atomised into the micro-interactions of the product itself.

Famous Example

The iPhone keyboard click and Slack’s Knock Brush notification