Title:
METHOD OF ENCODING DIGITAL DATA
Document Type and Number:
Japanese Patent JP3776004
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of encoding digital data which is capable of highly faithfully encoding the data from the digital data of high pure tone characteristics to the digital data of the low pure characteristics without complicating the algorithm.
SOLUTION: This method of encoding the digital data has a power calculating section 31 which calculates the spectral power of the inputted digital data and a pure tone characteristic judging section 32 which judges the rise and fall of the pure tone characteristics of the inputted digital data from the maximum value and mean value of the spectral power and changes over masking characteristics according to the result of the decision.
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Inventors:
Osamu Fujii
Application Number:
JP2001158767A
Publication Date:
May 17, 2006
Filing Date:
May 28, 2001
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G10L19/02; G11B20/10; G10L19/035; H03M7/30; (IPC1-7): G10L19/02; G10L19/00; G11B20/10; H03M7/30
Domestic Patent References:
| JP8211899A | ||||
| JP8272400A | ||||
| JP7295594A |
Foreign References:
| WO1994028633A1 |
Attorney, Agent or Firm:
Shizuo Sano
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