DocumentCode :
323543
Title :
Pronunciation modelling using a hand-labelled corpus for conversational speech recognition
Author :
Byrne, W. ; Finke, M. ; Khunanpur, S. ; McDonough, J. ; Nock, H. ; Riley, M. ; Saraclar, M. ; Wooters, C. ; Zavaliagkos, G.
Author_Institution :
Center for Language & Speech Process., Johns Hopkins Univ., Baltimore, MD, USA
Volume :
1
fYear :
1998
fDate :
12-15 May 1998
Firstpage :
313
Abstract :
Accurately modelling pronunciation variability in conversational speech is an important component of an automatic speech recognition system. We describe some of the projects undertaken in this direction during and after WS97, the Fifth LVCSR Summer Workshop, held at Johns Hopkins University, Baltimore, in July-August, 1997. We first illustrate a use of hand-labelled phonetic transcriptions of a portion of the Switchboard corpus, in conjunction with statistical techniques, to learn alternatives to canonical pronunciations of words. We then describe the use of these alternate pronunciations in an automatic speech recognition system. We demonstrate that the improvement in recognition performance from pronunciation modelling persists as the system is enhanced with better acoustic and language models
Keywords :
acoustic signal processing; natural languages; speech recognition; Switchboard corpus; acoustic models; automatic speech recognition system; canonical pronunciations; conversational speech recognition; hand-labelled corpus; hand-labelled phonetic transcriptions; language models; projects; pronunciation modelling; pronunciation variability; recognition performance; statistical techniques; Automatic speech recognition; Costs; Decision trees; Dictionaries; Natural languages; Robustness; Speech processing; Speech recognition; Vegetation mapping; Vocabulary;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
ISSN :
1520-6149
Print_ISBN :
0-7803-4428-6
Type :
conf
DOI :
10.1109/ICASSP.1998.674430
Filename :
674430
Link To Document :
بازگشت