| 摘要 |
PROBLEM TO BE SOLVED: To improve speech recognition accuracy without greatly increasing processing in a speech recognition device for dictation to recognize an inputted speech by dividing it into finite speech sections bordering on silence intervals. SOLUTION: The speech recognition device is provided with a speech analysis means which detects the speech sections to be recognized bordering on the silence intervals from the inputted speech and analyzes speech, a sound pattern storage means which stores a sound pattern, a language information storage means which stores language information, a boundary language information storage means which stores language information to be applied to the boundary of the section, and a speech recognition means which outputs a recognized result to the speech section by using the sound pattern, language information, and language information to be applied to the boundary of the section. The speech recognition device operates so as to output the recognized result for each speech section of the inputted speech. The recognition accuracy is improved by applying a language model to the starting portion and the dead end of the speech section.
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