Audio-to-Haptics Translation

A class of techniques that convert audio signals — either recordings of real-world interactions or AI-generated sounds — into vibrotactile patterns that can be rendered through actuators embedded in phones, tablets, wearables, or specialized haptic displays. Because the perceptible frequency ranges of human touch (roughly 20 Hz–1 kHz) and hearing overlap substantially in the low-frequency band, audio signals can be band-limited, compressed, and replayed as vibrations that preserve texture-like characteristics of the source. In accessibility, audio-to-haptics translation supports sensory substitution pipelines that let blind and low-vision users feel material properties, environmental sounds, or media content through touch.