Title:
音声符号化方法および関連装置
Document Type and Number:
Japanese Patent JP6888051
Kind Code:
B2
Abstract:
An audio coding method and a related apparatus are disclosed. The audio coding method includes: performing time-frequency transformation processing on a time-domain signal of a current audio frame, to obtain spectral coefficients of the current audio frame (101); acquiring a reference coding parameter of the current audio frame (102); and if the acquired reference coding parameter of the current audio frame satisfies a first parameter condition, coding spectral coefficients of the current audio frame based on a transform coded excitation algorithm, or if the acquired reference coding parameter of the current audio frame satisfies a second parameter condition, coding spectral coefficients of the current audio frame based on a high quality transform coding algorithm (104). The audio coding method and the related apparatus help improve coding quality or coding efficiency of audio frame coding.
Inventors:
Liu Sawa Shin
Seedling
Seedling
Application Number:
JP2019106061A
Publication Date:
June 16, 2021
Filing Date:
June 06, 2019
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
G10L19/02
Domestic Patent References:
| JP2007534020A |
Foreign References:
| WO2016015485A1 |
Other References:
3GPP TS 26.445 v1.0.0 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Codec for Enhanced Voice Services (EVS); Detailed Algorithmic Description (Release 12),2014年 9月,pp.124-138
Attorney, Agent or Firm:
Shinya Mitsuhiro
Keiji Kiuchi
Keiji Kiuchi