Title:
音声符号化装置、音声復号化装置、音声符号化方法および音声復号化方法
Document Type and Number:
Japanese Patent JP4469400
Kind Code:
B2
Abstract:
The invention provides a voice coding and encoding device, comprising: voice vector generating unit, generating voice vector by voice pulse; expanded pattern generation unit, generating expanded pattern; pulse expanding unit, expanding pulse of said generated voice vector according to said expanded pattern, and said pattern expanding generating unit changes noise of expanded pattern continuously by changing amplitude value for expanded pattern.
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Inventors:
Hiroyuki Ehara
Toshiyuki Morii
Toshiyuki Morii
Application Number:
JP2008087555A
Publication Date:
May 26, 2010
Filing Date:
March 28, 2008
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
G10L19/107
Domestic Patent References:
| JP10063300A | ||||
| JP11282497A |
Other References:
安永和敏 他,"パルス拡散音源を用いた低レート音声符号化",日本音響学会平成10年度秋季研究発表会講演論文集-I-,1998年 9月24日,3-2-17,p.281-282
Attorney, Agent or Firm:
Koichi Washida