EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology
2nd INTERSPEECH Event

Aalborg, Denmark
September 3-7, 2001

                 

Pronunciation Variation Analysis with respect to Various Linguistic Levels and Contextual Conditions for Mandarin Chinese

Ming-yi Tsai (1), Fu-chiang Chou (2), Lin-shan Lee (3)

(1) National Taiwan University / Applied Speech Technology, Taiwan
(2) Applied Speech Technology, Taiwan
(3) National Taiwan University, Taiwan

Chinese language has quite different characteristic structures from those of English. There are at least word, character, syllable, Initial-Final levels in Chinese, each carrying different levels of information with complicated correlations among them. In this paper, we investigate the dependency of pronunciation variation in conversational Mandarin speech on these different levels under various contextual conditions considering the structural features of the language. The influence of speaking rate and word frequency on such pronunciation variation is also analyzed. Different pruning methods, for including pronunciation variation in speech recognition were also evaluated, and the experimental results showed that improved accuracy is obtainable if the characteristics of the pronunciation variation found in the analysis can be properly taken into account. All discussions here are based on tests with the LDC Mandarin Call Home corpus.

Full Paper

Bibliographic reference.  Tsai, Ming-yi / Chou, Fu-chiang / Lee, Lin-shan (2001): "Pronunciation variation analysis with respect to various linguistic levels and contextual conditions for Mandarin Chinese", In EUROSPEECH-2001, 1445-1448.