SPEECH COMPARISON IN The Rosetta Stone TM

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چکیده

The Rosetta StoneTM is a successful CD-ROM based interactive program for teaching foreign languages, that uses speech comparison to help students improve their pronunciation. The input to a speech comparison system is N+1 digitized utterances. The output is a measure of the similarity of the last utterance to each of the N others. Which language is being spoken is irrelevant. This differs from classical speech recognition where the input data includes but one utterance, a set of expectations tuned to the particular language in use (typically digraphs or similar), and a grammar of expected words or phrases, and the output is recognition in the utterance of one of the phrases in the grammar (or rejection). This paper describes a speech comparison system and its application in The Rosetta StoneTM.

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تاریخ انتشار 1999