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：US20250006209A1

公开(公告)日：2025-01-02

申请号：US18884337

申请日：2024-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhi WANG ,  Zhe WANG ,  Haiting LI

IPC: G10L19/008 ,  G10L19/002

Abstract: This application disclose a multi-channel signal encoding method, a multi-channel signal decoding method, and a terminal device for processing multi-channel signal. The multi-channel signal encoding method includes: obtaining silent flag information of a multi-channel signal, where the silent flag information includes a silent enable flag and/or a silent flag; and performing multi-channel encoding processing on the multi-channel signal to obtain a transmission channel signal of each transmission channel; and generating a bitstream based on the transmission channel signal of each transmission channel and the silent flag information, where the bitstream includes the silent flag information and a multi-channel encoding result of the transmission channel signal. In this application, the transmission channel signal of each transmission channel is encoded based on the silent flag information to generate the bitstream, and a silent status of the multi-channel signal is considered, so that encoding efficiency and encoding bit resource utilization are improved.

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.