Title:
ステレオ信号エンコード方法および装置
Document Type and Number:
Japanese Patent JP7252263
Kind Code:
B2
Abstract:
This application provides a stereo signal encoding method and an encoding apparatus. The stereo signal encoding method includes: obtaining indication information of an encoding mode of a residual signal of a current frame, where the indication information includes at least one of: an encoding status of a residual signal of a previous frame of the current frame, a value of a updating manner flag for a long-term smooth parameter of a stereo signal of the current frame, or a value of a status change parameter of a stereo signal of the current frame relative to a stereo signal of the previous frame; and determining the encoding mode of the residual signal of the current frame based on the obtained indication information of the encoding mode of the residual signal of the current frame, where the encoding mode is used to indicate whether to encode the residual signal of the current frame. Based on the stereo signal encoding method and the encoding apparatus in the embodiments of this application, encoding quality of a stereo signal can be better improved.
Inventors:
Warn, bin
Riu, Zoasin
Lee, teen
Riu, Zoasin
Lee, teen
Application Number:
JP2020566797A
Publication Date:
April 04, 2023
Filing Date:
May 29, 2019
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
G10L19/008; G10L19/00
Domestic Patent References:
| JP2003330497A | ||||
| JP2012521012A | ||||
| JP2004325633A |
Foreign References:
| US20160064004 |
Other References:
ELFITRI, Ikhwana et al.,"Experimental study on improved parametric stereo for bit rate scalable audio coding",Proc. of the 2014 6th International Conference on Information Technology and Electrical Engineering (ICITEE) [online],2014年10月07日,[Retrieved on 2022.01.31], Retrievedfrom the Internet:
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki