Title:
【発明の名称】音響信号処理方法
Document Type and Number:
Japanese Patent JP3384523
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce operation quantity and to improve accuracy of operation for a post filter of temporal region processing. SOLUTION: For example, a reproduction frequency region coefficient in a conversion coding and decoding method and reproduction spectrum envelope are inputted to terminals 51, 52, a large part of values of spectrum envelope is deformed further larger and a small part is deformed further smaller by an emphasizing part 54, the frequency region coefficient is inversely flatted by an inversely flatting section 55 due to this emphasis-processed spectrum envelope, further, converted into a temporal region signal by a converting section 56.
Inventors:
Naoki Iwakami
Kazunaga Ikeda
Takehiro Moriya
Akio Jin
Kazunaga Ikeda
Takehiro Moriya
Akio Jin
Application Number:
JP23379996A
Publication Date:
March 10, 2003
Filing Date:
September 04, 1996
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G10L15/20; G10L13/00; G10L19/26; G10L21/0208; H03M7/30; (IPC1-7): G10L13/00
Domestic Patent References:
| JP61286900A | ||||
| JP6318876A | ||||
| JP7107053A | ||||
| JP7248794A | ||||
| JP8110796A | ||||
| JP62500138A |
Attorney, Agent or Firm:
Suguru Kusano