Sound Display is an app that brings the world of "seeing sounds" to users by recognizing ambient sounds and providing notifications. It aims to eliminate the inconveniences and potential dangers faced by individuals with hearing impairments, such as the deaf, hard of hearing, and elderly, facilitating their social participation.

The app's key feature is its sound recognition function powered by AI, which identifies various preset sounds like emergency earthquake alerts, fire alarms, emergency vehicles (police cars, fire trucks, ambulances), and doorbells. For sounds not covered by presets, users can record and register custom sounds within the app for personalized recognition.