公开(公告)号：US20220335962A1

公开(公告)日：2022-10-20

申请号：US17857725

申请日：2022-07-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin WANG ,  Bingyin XIA ,  Zhe WANG ,  Jiantong ZHOU

IPC: G10L19/02 ,  G10L19/22 ,  G10L25/18

Abstract: An audio encoding method and device and an audio decoding method and device are provided. The audio encoding method includes: obtaining a current frame of an audio signal, where the current frame includes a high frequency band signal and a low frequency band signal; obtaining a compatible layer encoding parameter of the current frame based on the high frequency band signal and the low frequency band signal; obtaining an enhancement layer encoding parameter of the current frame based on the high frequency band signal; and performing bitstream multiplexing on the compatible layer encoding parameter and the enhancement layer encoding parameter to obtain an encoded bitstream.