Patent
1993-07-28
1996-08-06
MacDonald, Allen R.
395 231, G10L 900
Patent
active
055442773
ABSTRACT:
A speech coding apparatus and method measures the values of at least first and second different features of an utterance during each of a series of successive time intervals. For each time interval, a feature vector signal has a first component value equal to a first weighted combination of the values of only one feature of the utterance for at least two time intervals. The feature vector signal has a second component value equal to a second weighted combination, different from the first weighted combination, of the values of only one feature of the utterance for at least two time intervals. The resulting feature vector signals for a series of successive time intervals form a coded representation of the utterance. In one embodiment, a first weighted mixture signal has a value equal to a first weighted mixture of the values of the features of the utterance during a single time interval. A second weighted mixture signal has a value equal to a second weighted mixture, different from the first weighted mixture, of the values of the features of the utterance during a single time interval. The first component value of each feature vector signal is equal to a first weighted combination of the values of only the first weighted mixture signals for at least two time intervals, and the second component value of each feature vector signal is equal to a second weighted combination, different from the first weighted combination, of the values of only the second weighted mixture for at least two time intervals.
REFERENCES:
patent: 4980918 (1990-12-01), Bahl et al.
patent: 5031217 (1991-07-01), Nishimura
patent: 5182773 (1993-01-01), Bahl et al.
patent: 5276766 (1994-01-01), Bahl et al.
patent: 5278942 (1994-01-01), Bahl et al.
patent: 5280562 (1994-01-01), Bahl et al.
Bahl, L. R., et al. "Vector Quantization Procedure For Speech Recognition Systems Using Discrete Parameter Phoneme-Based Markov Word Models." IBM Technical Disclosure Bulletin, vol. 32, No. 7, Dec. 1989, pp. 320-321.
Jelinek, F. "Continuous Speech Recognition by Statistical Methods." Proceedings of the IEEE, vol. 64, No. 4, Apr. 1976, pp. 532-556.
Bakis Raimo
Gopalakrishnan Ponani S.
Kanevsky Dimitri
Nadas Arthur J.
Nahamoo David
Doerrler Michelle
International Business Machines - Corporation
MacDonald Allen R.
Schechter Marc D.
Tassinari, Jr. Robert P.
LandOfFree
Speech coding apparatus and method for generating acoustic featu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Speech coding apparatus and method for generating acoustic featu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech coding apparatus and method for generating acoustic featu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2198617