In Assistive tech

Haptic Speaker Lets Blind and Visually Impaired People Read Braille in Midair

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German researchers have developed an ultrasonic haptic speaker that allows them to display Braille numbers without contact.

Researchers at Germany’s Bayreuth University have been working to develop a special speaker system that emits ultrasound waves with the purpose of letting people read braille in midair. It does this by using acoustic force to stand in for the usual tactile embossed braille writing.


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