Title:
IMPROVED METHOD AND DEVICE FOR AUDIO ENCODING AND/OR DECODING USING TIME-FREQUENCY CORRELATION
Document Type and Number:
Japanese Patent JP3824607
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an improved method for audio encoding and/or decoding using a time-frequency correlation and a device therefor.
SOLUTION: Disclosed is a digital audio encoding method of generating a time-frequency band table on the basis of an input audio signal, searching the block closest to a block which is currently encoded according to the generated time-frequency band table to generate information regarding the closest block which is searched for, and generating a bit stream including the generated information regarding the closest block. As compared with an existent audio codec, a transmission bit rate is decreased without any deterioration of sound quality and the sound quality is improved without any increase in transmission bit rate.
Inventors:
Matthew Manu
Zhang tin
Zhang tin
Application Number:
JP2003425850A
Publication Date:
September 20, 2006
Filing Date:
December 22, 2003
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G10L19/00; G10L19/02; G10L21/02; G11B20/10; H03M7/30; (IPC1-7): G10L19/00; G10L19/02; H03M7/30
Domestic Patent References:
| JP2003186499A | ||||
| JP2002222000A | ||||
| JP2004004530A | ||||
| JP2002328699A |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Takashi Watanabe
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