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Patent Searching and Data


Title:
STEREO ENCODING METHOD, STEREO DECODING METHOD AND DEVICES
Document Type and Number:
WIPO Patent Application WO/2021/000723
Kind Code:
A1
Abstract:
A stereo encoding method, a stereo decoding method and devices, which are used to improve the stereo encoding and decoding performance, the encoding method comprising: downmixing a left channel signal of a current frame and a right channel signal of the current frame to obtain a primary channel signal of the current frame and a secondary channel signal of the current frame (401); and when it is determined to perform differential encoding on the pitch period of the secondary channel signal, using an estimated pitch period value of the primary channel signal to differentially encode the pitch period of the secondary channel signal so as to obtain an pitch period index value of the secondary channel signal, the pitch period index value of the secondary channel signal being used to generate a stereo encoding code stream to be sent (403).

Inventors:
SHLOMOT, Eyal (US)
GAO, Yuan (CN)
WANG, Bin (CN)
Application Number:
CN2020/096296
Publication Date:
January 07, 2021
Filing Date:
June 16, 2020
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (CN)
International Classes:
G10L19/008
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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