Title:
AUDIO ENCODING APPARATUS, DECODING APPARATUS, METHOD, CIRCUIT AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/048815
Kind Code:
A1
Abstract:
An encoding apparatus (1) comprises: a pitch contour analyzing unit (101) for detecting information; a dynamic time warping unit (102) for generating, based on the detected information, a pitch change ratio (Tw_ratio: FIG. 18) that is the domain of a range (86) including a range (86a) in which the absolute value of the cent of the pitch change ratio is equal to or greater than 42; a first lossless encoding unit (103) for encoding the generated pitch parameter (102x); a time scaling unit (104) for shifting the signal pitch in accordance with the foregoing information; and a second encoder for encoding the shifted signal (104x).
Inventors:
ISHIKAWA, Tomokazu (())
石川 智一 (())
NORIMATSU, Takeshi (())
則松 武志 (())
CHONG, Kok Seng (())
石川 智一 (())
NORIMATSU, Takeshi (())
則松 武志 (())
CHONG, Kok Seng (())
Application Number:
JP2010/006234
Publication Date:
April 28, 2011
Filing Date:
October 21, 2010
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
ISHIKAWA, Tomokazu (())
石川 智一 (())
NORIMATSU, Takeshi (())
則松 武志 (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
ISHIKAWA, Tomokazu (())
石川 智一 (())
NORIMATSU, Takeshi (())
則松 武志 (())
International Classes:
G10L19/00; G10L19/02; G10L21/04
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg.,3-10, Nishi Nakajima 5-chome, Yodogawa-ku, Osaka-cit, Osaka 11, 〒5320011, JP)
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