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Title:
METHOD AND DEVICE FOR EXTRACTING INTER-CHANNEL PHASE DIFFERENCE PARAMETER
Document Type and Number:
WIPO Patent Application WO/2017/206794
Kind Code:
A1
Abstract:
A method and device for extracting an inter-channel phase difference parameter. The extraction method comprises: obtaining a parameter for determining the information extraction mode for a current frame of a multi-channel signal (S101); determining, on the basis of the parameter for determining the information extraction mode for the current frame of the multi-channel signal, the extraction mode for the inter-channel phase (IPD) parameter of the multi-channel signal of the current frame (S102), the determined extraction mode for the IPD parameter of the multi-channel signal of the current frame being one of at least two pre-configured IPD parameter extraction modes; extracting, on the basis of the determined extraction mode for the IPD parameter of the multi-channel signal of the current frame, the IPD parameter of the multi-channel signal of the current frame (S103). The present invention enhances the selection variety of IPD parameter extraction mode, better keeps phase information, and improves audio encoding quality.

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Inventors:
ZHANG, Xingtao (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
LI, Haiting (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
LIU, Zexin (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
MIAO, Lei (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2017/085909
Publication Date:
December 07, 2017
Filing Date:
May 25, 2017
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, BantianLonggang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
G10L19/00
Domestic Patent References:
2010-04-08
Foreign References:
US20110123031A12011-05-26
CN103262159A2013-08-21
CN104053120A2014-09-17
CN104681029A2015-06-03
CN104205211A2014-12-10
US20110257968A12011-10-20
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