YouTube is adding captions to millions of internet videos, reports the Associated Press. The feature unveiled March 4 expands upon speech-recognition technology that YouTube began using to make captions available on a limited number of videos late last year. YouTube’s audience will be able to request captions at the press of a button. Video producers also will be able to download the automated captions and improve upon them. For now, YouTube’s captioning tool will only work on videos with English audio, although there are plans to include more languages. The English audio, however, can be translated into 50 different languages…

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