公开(公告)号：US20230145725A1

公开(公告)日：2023-05-11

申请号：US18154633

申请日：2023-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhi WANG ,  Jiance DING ,  Bin WANG ,  Zhe WANG

IPC: G10L19/008 ,  G10L25/21

CPC classification number: G10L19/008 ,  G10L25/21

Abstract: Multi-channel audio signal encoding and decoding methods and apparatuses (1100, 1300) are provided. This can reduce a quantity of bits of multi-channel side information, so that saved bits can be allocated to another functional module of an encoder, to improve quality of a reconstructed audio signal of a decoder side and improve coding quality.

公开(公告)号：US20230154471A1

公开(公告)日：2023-05-18

申请号：US18153128

申请日：2023-01-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhi WANG ,  Jiance DING ,  Bingyin XIA ,  Bin WANG ,  Zhe WANG

IPC: G10L19/008 ,  G10L25/06

CPC classification number: G10L19/008 ,  G10L25/06

Abstract: A multi-channel audio signal encoding method includes: obtaining a to-be-encoded first audio frame; obtaining a correlation value set, where the correlation value set includes respective correlation values of a plurality of channel pairs; selecting M correlation values from the correlation value set, where all the M correlation values are greater than correlation values other than the M correlation values in the correlation value set, and all the M correlation values are greater than or equal to a pairing threshold; obtaining M channel pair sets; determining a target channel pair set from the M channel pair sets, where a sum of correlation values of all channel pairs in the target channel pair set is the largest in those of the M channel pair sets; and encoding the first audio frame based on the target channel pair set.

公开(公告)号：US20240388866A1

公开(公告)日：2024-11-21

申请号：US18785171

申请日：2024-07-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiance DING

IPC: H04S7/00 ,  G10L19/008 ,  H04N19/44

Abstract: This application disclose an audio processing method and a terminal. The method includes: decoding an audio bitstream to obtain audio optimization metadata, basic audio metadata, and M pieces of decoded audio data, the audio optimization metadata includes first metadata of a first optimized listening area and a first decoding audio mixing parameter corresponding to the first optimized listening area; rendering M pieces of decoded audio data based on a current location of a user and the basic audio metadata, to obtain M pieces of rendered audio data; when the current location is in the first optimized listening area, performing first audio mixing on the M pieces of rendered audio data based on the first decoding audio mixing parameter, to obtain M pieces of first audio mixing data; and mixing the M pieces of first audio mixing data, to obtain mixed audio data corresponding to the first optimized listening area.

公开(公告)号：US20230154472A1

公开(公告)日：2023-05-18

申请号：US18154451

申请日：2023-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhi WANG ,  Jiance DING ,  Bin WANG ,  Haiting LI ,  Zhe WANG

IPC: G10L19/008 ,  G10L25/21 ,  G10L19/002

CPC classification number: G10L19/008 ,  G10L25/21 ,  G10L19/002

Abstract: Disclosed are a multi-channel audio signal encoding method and apparatus. Audio signals of P channels in a current frame of a multi-channel audio signal can be obtained, where the audio signals of the P channels include audio signals of K channel pairs; respective bit quantities of the K channel pairs are determined based on the respective energy/amplitudes of the audio signals of the P channels and a quantity of available bits; and the audio signals of the P channels are encoded based on the respective bit quantities of the K channel pairs to obtain an encoded bitstream, to improve encoding quality.

公开(公告)号：US20230133252A1

公开(公告)日：2023-05-04

申请号：US17976474

申请日：2022-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan GAO ,  Jiance DING ,  Bin WANG

IPC: G10L19/002

Abstract: The present disclosure provides a bit allocation method and apparatus for an audio signal. The bit allocation method for an audio signal includes: obtaining T audio signals in a current frame, where T is a positive integer; determining a first audio signal set based on the T audio signals, where the first audio signal set includes M audio signals, M is a positive integer, T ≥ M; determining M priorities of the M audio signals in the first audio signal set; and performing bit allocation on the M audio signals based on the M priorities of the M audio signals.