Title :
Syllable structure parsing for continuous speech recognition
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
A probabilistic syllable parsing algorithm used to extract an underlying syllable structure from acoustic speech realizations is described. In the algorithm, phonological objects are represented in terms of features, syllable positions, and distinctive features, and they are organized within hierarchical structures using a probabilistic function. The algorithm parses the syllable structure from the acoustic speech realizations by applying the probabilistic acoustic-phonological constraints and the probabilistic collocational restrictions involved in the internal constituent features. Performance results for 15 test sentences spoken by 5 male speakers indicate that phonemes are recognized at 90.5% accuracy, and that the syllable structure is parsed at 79.7% accuracy
Keywords :
acoustic signal processing; speech recognition; continuous speech recognition; distinctive features; hierarchical structures; phonemes; phonological objects; probabilistic acoustic-phonological constraints; probabilistic collocational restrictions; probabilistic function; probabilistic syllable parsing algorithm; recognition accuracy; syllable positions; syllable structure parsing; test sentences; Acoustic testing; Information technology; Laboratories; National electric code; Speech recognition;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150463