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An automatic caption-superimposing system with a new continuous speech recognizer

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3 Author(s)
Imai, T. ; Sci. & Tech. Res. Labs., Japan Broadcasting Corp., Tokyo, Japan ; Ando, A. ; Miyasaka, E.

This paper describes an automatic caption-superimposing system with a new continuous speech recognizer for efficient production of TV programs. The system which we have developed can recognize continuous speech announced in a hall of Japanese `sumo' wrestling and automatically superimpose the recognition results of wrestlers' names and winning tricks as captions on a TV display. The announcements consist of sentences to inform which wrestler has won a match with what kind of winning trick. They are formed out of small-sized vocabulary with a specific uttered style and are spoken nearly at a Japanese `bunsetsu' unit like a phrase only by some specific speakers. We designed the system to work with the following features: (a) recognition of continuous speech with a specific uttered style; (b) an easy change of vocabulary to be recognized; (c) no requirement of pre-registration of any particular utterances; (d) implementation on multi-microprocessors with high computing speed. The proposed recognizer utilizes general intra-`bunsetsu' grammar which is applicable to various recognition tasks, while conventional Japanese continuous speech recognizers use intra-`bunsetsu' grammar which depends on applied recognition tasks. In a recognition experiment on 40 sentences of `sumo' announcements by two speakers, the system attained `bunsetsu' accuracy of 91.0% with quasi-real-time processing

Published in:

Broadcasting, IEEE Transactions on  (Volume:40 ,  Issue: 3 )

Date of Publication:

Sep 1994

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