Title:
SOUND SIGNAL PROCESSING APPARATUS, SOUND ENCODING APPARATUS AND SOUND DECODING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/048792
Kind Code:
A1
Abstract:
Provided is a sound signal processing apparatus capable of performing a sound signal processing, such as time scaling or frequency modulation, with only a small calculation amount. A sound signal processing apparatus for converting an input sound signal sequence by use of a predetermined adjustment factor comprises: a filter bank (2601) that is operative to convert an input sound signal sequence to a QMF (Quadrature Mirror Filter) factor sequence by use of a QMF analysis filter; and an adjusting unit (2602) for adjusting the QMF factor sequence by causing the QMF factor sequence to be dependent on the predetermined adjustment factor.
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:
JP2010/006180
Publication Date:
April 28, 2011
Filing Date:
October 19, 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:
G10L21/04; G10L19/02; H03M7/30
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)