公开(公告)号：US12231841B2

公开(公告)日：2025-02-18

申请号：US18173625

申请日：2023-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhipeng Chen ,  Jiang Li ,  Shiqiang Peng ,  Xiangyu Zhao ,  Fan Fan ,  Haiting Li ,  Tizheng Wang

IPC: H04R1/26 ,  H04R1/28

Abstract: Embodiments of this application provide an audio data processing method and apparatus, and a sound box system, which are related to the field of audio technologies, and improve sound quality of an audio playing device. The sound box system includes a full-frequency sound box and a low-frequency sound box. The full-frequency sound box is physically connected to the low-frequency sound box by using a first fastening part of the full-frequency sound box and a second fastening part of the low-frequency sound box. Furthermore, the full-frequency sound box communicates with the low-frequency sound box by using a first communication part of the first fastening part and a second communication part of the second fastening part, where the first fastening part and the second fastening part are a group of paired connection parts, and the first communication part and the second communication part are a group of paired communication parts.

公开(公告)号：US12175987B2

公开(公告)日：2024-12-24

申请号：US18339062

申请日：2023-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haiting Li ,  Bin Wang ,  Lei Miao

IPC: G10L19/008 ,  G10L19/18 ,  G10L19/22 ,  G10L25/03

Abstract: A time-domain stereo parameter encoding method and a related product are provided. The time-domain stereo parameter encoding method includes: determining a channel combination scheme for a current frame; determining a time-domain stereo parameter of the current frame based on the channel combination scheme for the current frame; and encoding the determined time-domain stereo parameter of the current frame, where the time-domain stereo parameter includes at least one of a channel combination ratio factor or an inter-channel time difference.

公开(公告)号：US20240274136A1

公开(公告)日：2024-08-15

申请号：US18430694

申请日：2024-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Eyal Shlomot ,  Haiting Li ,  Zexin Liu

IPC: G10L19/008 ,  G10L19/032

CPC classification number: G10L19/008 ,  G10L19/032

Abstract: Various embodiments provide a method and an apparatus for determining a weighting factor during stereo signal encoding. In those embodiments, a parameter value corresponding to the encoding mode of the to-be-encoded signal is determining based on an encoding mode of a to-be-encoded signal in a stereo signal and a correspondence between an encoding mode and a parameter value. Based on the determined parameter value and an energy spectrum of a linear prediction filter corresponding to an original line spectral frequency parameter of the to-be-encoded signal is a weighting factor for calculating a distance between the original line spectral frequency parameter and a target original line spectral frequency parameter is calculated.

公开(公告)号：US20230077905A1

公开(公告)日：2023-03-16

申请号：US17983724

申请日：2022-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Wang ,  Haiting Li ,  Lei Miao

IPC: G10L19/008 ,  G10L19/032

Abstract: In a stereo encoding method, a channel combination encoding solution of a current frame is first obtained, and then a quantized channel combination ratio factor of the current frame and an encoding index of the quantized channel combination ratio factor are obtained based on the obtained channel combination encoding solution, so that an obtained primary channel signal and secondary channel signal of the current frame meet a characteristic of the current frame.

公开(公告)号：US20220328053A1

公开(公告)日：2022-10-13

申请号：US17842284

申请日：2022-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingtao Zhang ,  Haiting Li ,  Zexin Liu ,  Lei Miao

IPC: G10L19/008

Abstract: An inter-channel phase difference (IPD) parameter extraction method includes obtaining a parameter for obtaining an information extraction manner for a current frame of a multi-channel signal; obtaining an IPD parameter extraction manner for the current frame based on the parameter for obtaining the information extraction manner, where the obtained IPD parameter extraction manner is one of at least two preset IPD parameter extraction manners; and obtaining an IPD parameter of the current frame based on the obtained IPD parameter extraction manner for the current frame.

公开(公告)号：US11462223B2

公开(公告)日：2022-10-04

申请号：US17135539

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

IPC: G10L19/008 ,  G10L19/038 ,  G10L19/06 ,  G10L19/032 ,  G10L19/07

Abstract: A stereo signal encoding method includes performing spectrum broadening on a quantized line spectral frequency (LSF) parameter of a primary channel signal in a current frame in a stereo signal to obtain a spectrum-broadened LSF parameter of the primary channel signal, determining a prediction residual of an LSF parameter of a secondary channel signal in the current frame based on an original LSF parameter of the secondary channel signal and the spectrum-broadened LSF parameter of the primary channel signal, and performing a quantization on the prediction residual of the LSF parameter of the secondary channel signal.

公开(公告)号：US11244691B2

公开(公告)日：2022-02-08

申请号：US16797484

申请日：2020-02-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

IPC: G10L19/008 ,  G10L19/04

Abstract: A stereo signal encoding method includes determining a window length of an attenuation window based on an inter-channel time difference, determining a modified linear prediction analysis window based on the window length of the attenuation window, where values of at least some points from a point (L−sub_window_len) to a point (L−1) in the modified linear prediction analysis window are less than values of corresponding points from a point (L−sub_window_len) to a point (L−1) in an initial linear prediction analysis window, and the window length of the modified linear prediction analysis window is equal to a window length of the initial linear prediction analysis window, and performing linear prediction analysis on a to-be-processed sound channel signal based on the modified linear prediction analysis window.

公开(公告)号：US11200907B2

公开(公告)日：2021-12-14

申请号：US16682484

申请日：2019-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Haiting Li ,  Lei Miao

IPC: G10L19/008 ,  H04S1/00

Abstract: A stereo signal processing method and apparatus, where the method includes performing delay estimation on a stereo signal of a current frame to determine an inter-channel time difference of the current frame, identifying a sign of the inter-channel time difference of the current frame is different from a sign of an inter-channel time difference of a previous frame of the current frame, performing delay alignment processing on the first-channel signal of the current frame based on the inter-channel time difference of the current frame, and performing delay alignment processing on the second-channel signal of the current frame based on the inter-channel time difference of the previous frame.

公开(公告)号：US20210383815A1

公开(公告)日：2021-12-09

申请号：US17408116

申请日：2021-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zexin Liu ,  Xingtao Zhang ,  Haiting Li ,  Lei Miao

IPC: G10L19/008 ,  G10L19/022

Abstract: A multi-channel signal encoding method includes obtaining a multi-channel signal of a current frame; determining an initial multi-channel parameter of the current frame; determining a difference parameter based on the initial multi-channel parameter of the current frame and multi-channel parameters of previous K frames of the current frame, where the difference parameter represents a difference between the initial multi-channel parameter of the current frame and the multi-channel parameters of the previous K frames, and K is an integer greater than or equal to one; determining a multi-channel parameter of the current frame based on the difference parameter and a characteristic parameter of the current frame; and encoding the multi-channel signal based on the multi-channel parameter of the current frame.

公开(公告)号：US11120807B2

公开(公告)日：2021-09-14

申请号：US16785274

申请日：2020-02-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Wang ,  Haiting Li ,  Lei Miao

IPC: G10L19/008 ,  G10L19/22

Abstract: A method for determining an audio coding mode and a related apparatus are provided. The method may include: 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. The technical solutions provided in embodiments of this application help improve encoding quality.