Sensory substitution

The technique of conveying information normally received through one sense via a different sensory channel, such as converting audio cues into vibrotactile feedback or visual signals. Sensory substitution is a foundational concept in assistive technology, enabling people who are deaf, blind, or deafblind to access information that would otherwise be unavailable to them. Applications include haptic displays for spatial audio, tactile maps for navigation, and auditory displays for visual data.