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Using sound to see
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Toronto, Canada (Globe&Mail): Assistive technology is allowing blind users to "see" by sound. The technology is part of a wave of software and hardware which has evolved as laptops, mobile phones and PDAs converge into powerful handheld computers running common operating systems such as Windows Mobile 5.0 or the RIM Blackberry platform. They're having a profound impact, allowing the blind to navigate streets in unfamiliar cities, to having e-mails read from their mobiles and identifying colours.
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