Title:
STEREO AUDIO ENCODING DEVICE, STEREO AUDIO DECODING DEVICE, AND METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2008/016097
Kind Code:
A1
Abstract:
Disclosed is a stereo audio encoding device capable of improving a spatial image of
a decoded audio in stereo audio encoding. In this device, an original cross correlation
calculation unit (101) calculates a mutual relationship coefficient (C1)
between the original L channel signal and the original R channel signal. A stereo
audio reconfiguration unit (104) subjects the inputted L channel signal and
the R channel signal to encoding and decoding so as to generate an L channel reconfigured
signal (L') and an R channel reconfigured signal (R'). A reconfiguration
cross correlation calculation unit (105) calculates a cross correlationcoefficient
(C2) between the L channel reconfigured signal (L') and the R
channel reconfigured signal (R'). A cross correlation comparison unit
(106) calculates and outputs a comparison result α between the cross correlation
coefficient (C1) and the cross correlation coefficient (C2).
Inventors:
ZHOU, Jiong (())
チョウ ジオン (())
チョウ ジオン (())
Application Number:
JP2007/065132
Publication Date:
February 07, 2008
Filing Date:
August 02, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 5718501, JP)
松下電器産業株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 5718501, JP)
ZHOU, Jiong (())
松下電器産業株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 5718501, JP)
ZHOU, Jiong (())
International Classes:
G10L19/00; G10L19/00
Attorney, Agent or Firm:
WASHIDA, Kimihito (5th Floor, Shintoshicenter Bldg.24-1, Tsurumaki 1-chom, Tama-shi Tokyo 34, 2060034, JP)
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