The Caption Accuracy Metrics Survey, which takes 15-20 minutes to fill out and is anonymous, gives screen shots from news broadcasts with caption errors. These errors have been caused by stenocaptioner error (stencaptioners create captions for programs in real time using a phonetic keyboard) or by transmission problems. It asks the respondent if they noticed the error, and if they consider it minor or major.
The survey is part of the Caption Accuracy Metrics Project, funded by a grant from the US Department of Education, which is exploring automated methods to analyse closed caption errors on live news programming.
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