公开(公告)号：US20230046850A1

公开(公告)日：2023-02-16

申请号：US17974851

申请日：2022-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianbo MENG ,  Bingyin XIA ,  Zhe WANG

IPC: G10L19/08 ,  G10L19/008 ,  G10L19/032

Abstract: A linear prediction coding (LPC) parameter coding method is provided. The method includes: determining a reference LPC parameter from a plurality of LPC parameters, performing direct coding on the reference LPC parameter, and performing reference coding on a non-reference LPC parameter based on the determined LPC parameter. The method includes: obtaining a direct coding result of the reference LPC parameter and determining a residual coding result of the non-reference LPC parameter.

公开(公告)号：US20230368801A1

公开(公告)日：2023-11-16

申请号：US18224237

申请日：2023-07-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianbo MENG ,  Bin WANG ,  Zhe WANG ,  Bingyin XIA

IPC: G10L19/002 ,  G10L19/02 ,  G10L25/21

CPC classification number: G10L19/002 ,  G10L19/02 ,  G10L25/21

Abstract: A bit allocation method and apparatus for an audio object are disclosed, which relate to the field of audio encoding and decoding technologies. The method includes: separately pre-rendering a plurality of audio objects to be pre-rendered in an audio frame, to obtain a plurality of pre-rendered audio objects; obtaining respective perceptual importance parameter values of the plurality of pre-rendered audio objects; obtaining a bit allocation parameter value of a current audio object to be pre-rendered based on the respective perceptual importance parameter values of the plurality of pre-rendered audio objects; and determining, based on the bit allocation parameter value of the current audio object to be pre-rendered and a total quantity of to-be-allocated bits corresponding to the plurality of audio objects to be pre-rendered, a target quantity of bits allocated to the current audio object to be pre-rendered.