Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Patent
1996-04-25
1998-09-08
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
G10L 900
Patent
active
058060316
ABSTRACT:
A tonal sound recognizer determines tones in a tonal language without the use of voicing recognizers or peak picking rules. The tonal sound recognizer computes feature vectors for a number of segments of a sampled tonal sound signal in a feature vector computing device, compares the feature vectors of a first of the segments with the feature vectors of another segment in a cross-correlator to determine a trend of a movement of a tone of the sampled tonal sound signal, and uses the trend as an input to a word recognizer to determine a word or part of a word of the sampled tonal sound signal.
REFERENCES:
patent: 4783807 (1988-11-01), Marley
patent: 5625749 (1997-04-01), Goldenthal et al.
Kroon, Peter et al., "Pitch Predictors with High Temporal Resolution", Proceedings IEEE 1990 International Conference on Acoustics, Speech, and Signal Processing, Apr. 3-6, 1990.
Rabiner, Lawrence R. et al., "A Comparative Performance Study of Several Pitch Detection Algorithms" Reprinted from IEEE Trans. Acoust., Speech, and Signal Process., vol. ASSP-24, pp. 399-417, Oct. 1976.
Dunlop Hugh C.
Hudspeth David R.
Motorola
Wieland Susan
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