The optophone is a device, used by the blind, that scans text and generates time-varying chords of tones to identify letters. It is one of the earliest known applications of sonification. Dr. Edmund Fournier d`Albe of Birmingham University invented the optophone in 1913, which used selenium photosensors to detect black print and convert it into a....
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device transforming light into sound
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The optophone is an instrument invented by Fournier d'Albe, by means of which the letters of ordinary print are caused to produce characteristic musical sounds by being projected optically on to a screen composed of a number of selnium cells connected to an AC electrical source of audio frequency, and to a loud speaker, thereby enabling the blind t...
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optophone An instrument to enable one to hear the murmur of muscular contractions.
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an electronic device that scans ordinary printed characters and produces combinations of sounds, enabling a blind reader to recognize the characters.
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