Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2006-04-24
2010-12-07
Smits, Talivaldis Ivars (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
C704SE19029, C704S219000
Reexamination Certificate
active
07848923
ABSTRACT:
Provided is a method for converting a dimension of a vector. The vector dimension conversion method for vector quantization includes the steps of: extracting a specific parameter having a pitch period from an input speech signal and then generating a vector of a dimension that varies according to the pitch period; dividing an entire frequency domain of the generated vector of the variable dimension into at least two frequency domains; and converting the vector of the variable dimension into vectors of mutually different fixed dimensions according to the divided frequency domains. Thereby, not only an error due to the vector dimension conversion is suppressed but codebook memory required for the vector quantization is effectively reduced.
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Byun Kyung Jin
Eo Ik Soo
Jung Hee Bum
Borsetti Greg A
Electronics and Telecommunications Research Institute
Ladas & Parry LLP
Smits Talivaldis Ivars
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