Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2011-04-12
2011-04-12
McFadden, Susan (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
Reexamination Certificate
active
07925500
ABSTRACT:
In a pitch conversion method and device which can reduce data throughput while suppressing a degradation of sound quality due to a pitch conversion as much as possible, an input signal pitch pattern per predetermined processing unit and a target pitch pattern are inputted, and a degradation degree indicating how a waveform of the input signal degrades upon pitch conversion from the input signal pitch pattern to the target pitch pattern is calculated. Alternatively, a degradation degree corresponding to a voice state and a phonemic type of the input signal is extracted from a database in which all of combinations of voice states and phonemic types estimated are associated with the degradation degrees to be recorded. Then, a pitch converter which performs a pitch conversion with small data throughput and a pitch converter which performs a pitch conversion with large data throughput are switched over depending on the degradation degree.
REFERENCES:
patent: 2003/0158728 (2003-08-01), Bi et al.
patent: 2-66600 (1990-03-01), None
patent: 7-219597 (1995-08-01), None
patent: 10-78791 (1998-03-01), None
Extended European Search issued in corresponding European Patent Application No. 07108659.9, on Aug. 3, 2007.
Xuejing SUN, “Voice Quality Conversion in TD-PSOLA Speech Synthesis”, IEEE, vol. 2, Jun. 5, 2000, pp. 953-956.
Endo Kaori
Matsumoto Chikako
Ota Yasuji
Togawa Taro
Fujitsu Limited
McFadden Susan
Staas & Halsey , LLP
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