公开(公告)号：US20240153511A1

公开(公告)日：2024-05-09

申请号：US18544935

申请日：2023-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin WANG ,  Haiting LI ,  Lei MIAO

IPC: G10L19/008 ,  G10L19/22

CPC classification number: G10L19/008 ,  G10L19/22

Abstract: An audio encoding and decoding method and a related apparatus are provided. The audio encoding method includes: determining a channel combination scheme for a current frame; when the channel combination scheme for the current frame is different from a channel combination scheme for a previous frame, performing segmented time-domain downmix processing on left and right channel signals in the current frame based on the channel combination scheme for the current frame and the channel combination scheme for the previous frame, to obtain a primary channel signal and a secondary channel signal in the current frame; and encoding the obtained primary channel signal and secondary channel signal in the current frame.

公开(公告)号：US20240105188A1

公开(公告)日：2024-03-28

申请号：US18523738

申请日：2023-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiting LI ,  Zexin LIU ,  Bin WANG

IPC: G10L19/008 ,  G10L25/18 ,  G10L25/21 ,  H04S1/00

CPC classification number: G10L19/008 ,  G10L25/18 ,  G10L25/21 ,  H04S1/007 ,  H04S2420/03

Abstract: This application discloses a downmixed signal calculation method and apparatus. The method includes: when a current frame or a previous frame of the current frame of a stereo signal is not a switching frame and a residual signal in the current frame or the previous frame does not need to be encoded, obtaining a second downmixed signal in the current frame and a downmix compensation factor of the current frame, correcting the second downmixed signal in the current frame based on the downmix compensation factor of the current frame, to obtain the first downmixed signal in the current frame and determining the first downmixed signal in the current frame as a downmixed signal in the current frame in a preset frequency band.

公开(公告)号：US20240096343A1

公开(公告)日：2024-03-21

申请号：US18522743

申请日：2023-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shanyi WEI ,  Chao WU ,  Yan QIU ,  Meng LIAO ,  Fan FAN ,  Shiqiang PENG ,  Bin LI ,  Wenbin ZHAO ,  Jiang LI ,  Haiting LI ,  Xueyan HUANG

IPC: G10L21/0232 ,  G10L21/0308

CPC classification number: G10L21/0232 ,  G10L21/0308

Abstract: This application relates to the artificial intelligence (AI) field, and specifically, to a voice quality enhancement method and a related device. The method includes: after a PNR mode is enabled, obtaining a noisy voice signal and target voice-related data, where the noisy-carrying voice signal includes a voice signal of a target user and an interfering noise signal, and the target voice-related data indicates a voice feature of the target user; and performing noise reduction on the noisy voice signal based on the target voice-related data by using a trained voice noise reduction model to obtain a noise-reduced voice signal of the target user, where the voice noise reduction model is implemented based on a neural network. In embodiments of this application, voice of a target person can be enhanced, and interference can be suppressed.

公开(公告)号：US20220310101A1

公开(公告)日：2022-09-29

申请号：US17663913

申请日：2022-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin WANG ,  Haiting LI ,  Lei MIAO

IPC: G10L19/008 ,  G10L19/22

Abstract: An audio encoding and decoding method and a related apparatus are provided. The audio encoding method includes: determining a channel combination scheme for a current frame; when the channel combination scheme for the current frame is different from a channel combination scheme for a previous frame, performing segmented time-domain downmix processing on left and right channel signals in the current frame based on the channel combination scheme for the current frame and the channel combination scheme for the previous frame, to obtain a primary channel signal and a secondary channel signal in the current frame; and encoding the obtained primary channel signal and secondary channel signal in the current frame.

公开(公告)号：US20210375292A1

公开(公告)日：2021-12-02

申请号：US17400289

申请日：2021-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin WANG ,  Haiting LI ,  Lei MIAO

IPC: G10L19/008 ,  G10L19/22

Abstract: A non-transitory computer-readable medium is provided. The non-transitory computer-readable medium having computer instructions stored therein, which when executed by one or more processors, cause the one or more processors to perform operations. The operations comprise: determining a channel combination scheme for a current frame, where the determined channel combination scheme for the current frame is one of a plurality of channel combination schemes; and determining a coding mode of the current frame based on a channel combination scheme for a previous frame and the channel combination scheme for the current frame, where the coding mode of the current frame is one of a plurality of coding modes.

公开(公告)号：US20210264926A1

公开(公告)日：2021-08-26

申请号：US17319353

申请日：2021-05-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingtao ZHANG ,  Haiting LI ,  Zexin LIU ,  Lei MIAO

IPC: G10L19/008 ,  G10L19/032 ,  H04S3/00

Abstract: This application discloses an IPD parameter encoding method, including: obtaining a reference parameter used to determine an IPD parameter encoding scheme of a current frame of a multi-channel signal; determining the IPD parameter encoding scheme of the current frame based on the reference parameter, where the determined IPD parameter encoding scheme of the current frame is one of at least two preset IPD parameter encoding schemes; and processing an IPD parameter of the current frame based on the determined IPD parameter encoding scheme of the current frame. The technical solutions provided in this application can improve encoding quality of the multi-channel signal.

公开(公告)号：US20210082442A1

公开(公告)日：2021-03-18

申请号：US17104425

申请日：2020-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiting LI ,  Bin WANG ,  Zexin LIU

IPC: G10L19/008 ,  G10L19/02 ,  G10L19/08

Abstract: A method and an apparatus for calculating a downmixed signal and a residual signal are provided. According to the method, if a first target frame (a current frame or a previous frame of the current frame) is a switching frame, a to-be-encoded downmixed signal and a to-be-encoded residual signal of the subband corresponding to the preset frequency band in the current frame is calculated based on a switch fade-in/fade-out factor of a second target frame, an initial downmixed signal and an initial residual signal of the preset frequency band.

公开(公告)号：US20210082441A1

公开(公告)日：2021-03-18

申请号：US17102190

申请日：2020-11-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiting LI ,  Zexin LIU ,  Bin WANG

IPC: G10L19/008 ,  H04S1/00 ,  G10L25/21 ,  G10L25/18

Abstract: This application discloses a downmixed signal calculation method and apparatus. The method includes: when a current frame or a previous frame of the current frame of a stereo signal is not a switching frame and a residual signal in the current frame or the previous frame does not need to be encoded, obtaining a second downmixed signal in the current frame and a downmix compensation factor of the current frame, correcting the second downmixed signal in the current frame based on the downmix compensation factor of the current frame, to obtain the first downmixed signal in the current frame and determining the first downmixed signal in the current frame as a downmixed signal in the current frame in a preset frequency band.