"25 August 2011 Last updated at 02:17 GMT Help
People who are deaf or hard of hearing have long complained that going to watch a film can be an unsatisfactory experience, with subtitled films on at unsociable times and often suffering from technical problems.
But a solution could soon available in the form of special glasses which allow the wearer to see subtitles directly in front of their eyes, giving them the freedom of choice afforded to hearing people.
Graham Satchell reports."
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