HEARING WITH THEIR EYES Two instruments developed recently at the University of Michigan enable deaf children to hear with their eyes. Speech sounds are transformed by one instrument with the speed of light on to a fluorescent screen; and the other, called the acoustical spectograph, produces speech patterns on paper. / About the size of a wireless set, the second instrument has on top a spinning drum covered with a specially treated paper. A small metal finger transmits the voice through a megaphone on to the paper, which is sensitive to electrical impulses. The result is a speech pattern in varying shades of black, and children after learning the various patterns produced on the paper, are able to listen to the radio or, carry on telephone conversations.
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Lake County Mail, Issue 14, 27 August 1947, Page 9
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126Page 9 Advertisements Column 1 Lake County Mail, Issue 14, 27 August 1947, Page 9
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