Patent ID: 7729917

Claim:
A method of correcting character strings for a unit of speech in a presentation in real time and for displaying as a caption, the method comprising steps of: recognizing the unit of speech in the presentation, and then outputting, as a result of the speech recognition, one or a plurality of texts of character string candidates and confidence factors of the speech recognition which correspond to the respective character string candidates; selecting between automatic judgment and manual judgment for the unit of speech, the selecting comprising: selecting automatic judgment when a total of a current processing time for the unit of speech and an average time to process unprocessed jobs is less than a predetermined maximum allowable delay time and when the confidence factor of a first character string candidate is greater than a predetermined threshold value, wherein a job is a minimum unit processed by speech recognition for which a confidence factor is determined, and wherein the first character string candidate has the highest confidence factor of the character string candidates for the unit of speech; and selecting manual judgment otherwise; in response to selecting automatic judgment, automatically judging whether to confirm the first character string candidate as a confirmed character string; in response to selecting manual judgment, outputting the speech and the character string candidates to a checker and determining whether to confirm a character string out of the character string candidates as a confirmed character string based on an instruction accepted from the checker; and displaying the confirmed character string as the caption.