Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1996-12-13
1999-03-30
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
704234, G10L 506, G10L 900
Patent
active
058901132
ABSTRACT:
An analyzing unit 1 converts an input speech into a feature vector time series. A reference pattern storing unit 3 stores the feature vector time series obtained by the same manner as in the analyzing unit. A matching unit 2 correlates for time axis the input speech feature vector time series and the reference patterns to one another. An environmental adapting unit 4 performs the environmental adaptation between the input speech feature vector time series and the reference patterns according to the result of matching in the matching unit 2. A speaker adapting unit 6 performs the adaptation concerning the speaker between the environmentally adapted reference patterns from the environmental adapting unit 4 and the input speech feature vector time series.
REFERENCES:
patent: 4720802 (1988-01-01), Damoulakis
patent: 5450522 (1995-09-01), Hermansky
Ming-Whei Feng, Speaker Adaptation Based on Spectral Normalization and Dynamic HMM Parameter Adaptation, Proceedings of IEEE Int'l Conf. on Acoustics, pp. 704-707, May, 1995.
Takagi et al., "Rapid Environment Adaptation for Speech Recognition", Journal of the Acoustical Society of Japan, vol. 16, No. 5, Sep. 1995, pp. 274-281.
Rosenberg et al., "Cepstral Channel Normalization Techniques for HMM-Based Speaker Verification", Proc. of the Int'l Conf. on Spoken Language Processing, Vo. 94, No. 1, 1994, pp. 1835-1838.
Shinoda et al., "Speaker Adaptation Using Spectral Interpolation for Speech Recognition", Institute of Electronics, Information and Comm. Engineers, vol. 77, No. 10, Part 03, 1994, pp. 1-11.
Takagi et al., "Speech Recognition With Environmental Adaptation Function Based on Spectral Copy Images", Spring Proceedings of the Acoustics Engineer's Association, 2-P-8, pp. 173-174, (1994).
Shinoda et al., "Speaker Adaptation With Spectrum Insertion For Speech Recognition", Proceedings of the Electronic Communication Engineer's Association, A, vol. J 77-A, No. 2, pp. 120-127, (1994).
Furui, "Digital Speech Processing" published by Tohkai University, pp. 154-160, (1985).
Shinoda et al., "Speaker Adaptation Using Probability Distributions in A Tree Structure Array", Spring Proceedings of the Acoustical Engineer's Association, 2-5-10, pp. 49-50, (1995).
Rosenberg et al., "Cepstral Channel Normalization Techniques For HMM-Based Speaker Verification", ICSLP 94, pp. 1835-1838, (1994).
Feng, "Speaker Adaptation Based On Spectral Normalization And Dynamic HMM Parameter Adaptation", GTE Laboratories Inc., pp. 704-707, (1995).
Zhao, "Iterative Self-Learning Speaker And Channel Adaptation Under Various Initial Conditions", Department of Electrical and Computer Engineering, pp. 712-715, (1995).
Hudspeth David R.
NEC Corporation
Sax Robert Louis
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