SIGNAL PROCESSING DEVICE, METHOD AND PROGRAM

WIPO Patent Application WO/2012/096230

A1

The present technology relates to a signal processing device, a method and a program which allow for the acquisition of sound with higher acoustic quality when decoding a sound signal. An envelope information generating unit (24) generates envelope information indicative of an envelope shape for the high-frequency components of a sound signal to be encoded. A sine wave information generating unit (26) detects a sine wave signal from the high-frequency components of a sound signal, and generates sine wave information indicative of the start position of the appearance of the sine wave signal. An encoded stream generating unit (27) multiplexes the envelope information, the sine wave information and the low-frequency components of the encoded sound signal, and outputs an encoded stream acquired thereby. Hereby, the receiving side of the encoded stream can estimate with higher accuracy the high-frequency components including the sine wave signal from the envelope information and the sine wave information. The present invention can be applied to a signal processing device.

WO/2012/121638	FILING OF NON-CODED SUB-VECTORS IN TRANSFORM CODED AUDIO SIGNALS
JP5694751	Coding method, decoding method, coding device, decoding device, program, recording medium
JP7318645	Encoding device and method, decoding device and method, and program

HATANAKA MITSUYUKI (JP)
CHINEN TORU (JP)

PCT/JP2012/050173

July 19, 2012

January 06, 2012

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SONY CORP (JP)
HATANAKA MITSUYUKI (JP)
CHINEN TORU (JP)

G10L19/02; G10L21/0388; H03M7/30

WO2010024371A1

2010-03-04

JP2007187905A	2007-07-26
JP2004053940A	2004-02-19
JP2001521648A	2001-11-06

See also references of EP 2665061A4

INAMOTO Yoshio et al. (JP)
Yoshio Inemoto (JP)

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