In New Scientist. Am seeing a number of these approaches lately. Repurposing the activity of the brain as a more general purpose sensory understanding engine.
Smart glasses translate video into sound to help the blind see
Blind people have long relied on sound as a substitution for sight, and some even use echolocation to navigate around objects. But it turns out that sound can be specifically designed to convey visual information. Now, that phenomenon is being used in an attempt to build better navigation aids for blind people.
Researchers from the California Institute of Technology in Pasadena have built smart glasses that translate images into sounds that can be intuitively understood without training. ... "
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