Title:
METHOD AND APPARATUS FOR DETERMINING ENCODING RATE IN VARIABLE RATE VOCODER
Document Type and Number:
Japanese Patent JP2007293355
Kind Code:
A
Abstract:
To provide a method and an apparatus for determining an encoding rate in a variable rate vocoder.
The apparatus for determining an encoding rate in a variable rate vocoder comprises: subband energy computation means 4 and 6 for receiving an input signal and determining a plurality of subband energy values in accordance with a predetermined subband energy computation format; and an encoding rate determination means 16 for receiving the plurality of subband energy values and selecting or determining the encoding rate in accordance with the plurality of subband energy values.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
DEJACO ANDREW P
GARDNER WILLIAM R
GARDNER WILLIAM R
Application Number:
JP2007145736A
Publication Date:
November 08, 2007
Filing Date:
May 31, 2007
Export Citation:
Assignee:
QUALCOMM INC
International Classes:
G10L19/24; G10L19/00; G10L19/02; G10L19/035; G10L21/0208; G10L25/18; G10L25/78; H03M7/30
Domestic Patent References:
| JPH06511320A | 1994-12-15 | |||
| JPH0537395A | 1993-02-12 | |||
| JPH0287731A | 1990-03-28 | |||
| JPH066313A | 1994-01-14 |
Foreign References:
| WO1992022891A1 | 1992-12-23 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Ryo Hashimoto
Tetsuya Kazama
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Ryo Hashimoto
Tetsuya Kazama