App gives paralysed man his voice back

21 February 2013 Last updated at 04:45 ET Help

For the last 27 years, Kevin Beverley has been unable to speak, after a violent attack left him brain damaged and paralysed.

But after years of silence, a new computer app has helped him find his voice again.

His first words were "at last, someone can hear me."

Bryony Mackenzie reports.

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