Device for normalizing voice pitch for voice recognition

Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition

Reexamination Certificate

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Details

C704S207000, C704S243000

Reexamination Certificate

active

07107213

ABSTRACT:
In a voice pitch normalization device equipped in a voice recognition device VRAp for recognizing an incoming command voice Sva uttered by any speaker, and used to normalize the incoming command voice to be in an optimal pitch for voice recognition, a target voice generator produces a target voice signal by changing the incoming command voice Svd on the basis of a predetermined degree. A probability calculator calculates a probability indicating a degree of coincidence among the target voice signal and a plurality of words in sample data. A voice pitch changer repeatedly changes the target voice signal in voice pitch until a maximum probability becomes a predetermined probability or greater.

REFERENCES:
patent: 4284846 (1981-08-01), Marley
patent: 4489434 (1984-12-01), Moshier
patent: 4783807 (1988-11-01), Marley
patent: 4803729 (1989-02-01), Baker
patent: 4813076 (1989-03-01), Miller
patent: 5617486 (1997-04-01), Chow et al.
patent: 5644678 (1997-07-01), Di Ronza
patent: 5694520 (1997-12-01), Lyberg
patent: 5790754 (1998-08-01), Mozer et al.
patent: 5839099 (1998-11-01), Munsell et al.
patent: 5960393 (1999-09-01), Cohrs et al.
patent: 5966687 (1999-10-01), Ojard
patent: 6310833 (2001-10-01), Guyett et al.
patent: 6687665 (2004-02-01), Oda et al.
patent: 07-271392 (1995-10-01), None
patent: 9-325798 (1997-12-01), None
Heironymus J.L.: “Formant Normalisation for Speech Recognition and Vowel Studies” Speech Communications, Elsevier Science Publishers, Amsterdam, NL, vol. 10, No. 5/06, Dec. 10, 1991, pp. 471-478, XP000271195 ISSN: 0167-6393.
Arslan L. M.: “Speaker Transformation Algorithum using Segmental Codebooks (STASC)” Speech Communication, Elsevier Science Publishers, Amsterdam, NL, vol. 28, No. 3, Jul. 1999, pp. 211-226, Xp004172905 issn:0167-6393.
Stylianou et al. (“A System for Voice Conversion Based On Probabilistic Classification and a Harmonic Plus Noise Model”, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech, and Signal Processing, May 1998).
Lee et al. (“A Very Low Bit Rate Speech Coder Based on a Recognition/Synthesis Paradigm”, IEEE Transactions on Speech an Audio Processing, Jul. 2001).

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