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 JP4645868
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 program storage media therefor. SOLUTION: A digital audio signal D10 is categorized as a class and the digital audio signal D10 is prediction-operated using a prediction coefficient corresponding to the categorized class and the DC component of the digital audio signal D10. Moreover, not only the class of the digital audio signal D10 is categorized, but also the DC component value of the digital audio signal D10 is categorized as a class, and the categorized classes are integrated to generate a new class class', and the digital audio signal D10 is prediction- operated using a prediction coefficient corresponding to the new class class'. In such a manner, it is possible to perform a conversion further adaptive to the characteristics of the digital audio signal D10.
Inventors:
Tetsujiro Kondo
Tsutomu Watanabe
Masaaki Hattori
Kimura Hiroto
Tsutomu Watanabe
Masaaki Hattori
Kimura Hiroto
Application Number:
JP2000238893A
Publication Date:
March 09, 2011
Filing Date:
August 02, 2000
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G10L19/04; G10L19/00; G10L25/90; H03M7/30; H04B14/04
Domestic Patent References:
| JP10313251A | ||||
| JP9198097A | ||||
| JP7147681A | ||||
| JP1204538A | ||||
| JP8265711A | ||||
| JP62102294A | ||||
| JP2000092456A | ||||
| JP61262800A | ||||
| JP5040500A |
Attorney, Agent or Firm:
Keiki Tanabe
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