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Chris Ledgard explores the world of voice recognition and finds out how the technology is changing the way we use language. Belfast writer Malachi O'Doherty shows how he's had to train his voice recognition software to recognise his particular accent. Forensic linguist Peter French talks about the qualities of different voices, and how they can be quantified. Tyler Perrachione has found that people with dyslexia also find it difficult to recognise voices. And Chris meets Steve Renals, whose group has been given a 6.2 million pound grant to work on improving synthetic voices and speech recognition. Producer Beth O'Dea.
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