ディジタル信号処理方法、学習方法及びそれらの装置並びにプログラム格納媒体

Title:

ディジタル信号処理方法、学習方法及びそれらの装置並びにプログラム格納媒体

Document Type and Number:

Japanese Patent JP4645869

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a digital signal processing method capable of further improving the waveform reproducibility of a digital signal, a learning method, and their apparatus, and a program storage media therefor. SOLUTION: In this digital signal processing method, power spectrum data are calculated from a digital audio signal D10, the calculated power spectrum is normalized at the maximum value width and normalization data are calculated, the class of the digital audio signal D10 is categorized on the basis of the calculated normalization data, and the digital audio signal D10 is converted by a prediction system corresponding to the categorized class. Thus the method makes it possible to perform conversion further adaptive to the characteristics of the digital audio signal D10.

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Inventors:

Tetsujiro Kondo
Masaaki Hattori
Tsutomu Watanabe
Kimura Hiroto

Application Number:

JP2000238898A

Publication Date:

March 09, 2011

Filing Date:

August 02, 2000

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