公开(公告)号：US20240428807A1

公开(公告)日：2024-12-26

申请号：US18823108

申请日：2024-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

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

Abstract: An encoding method includes determining an adaptive broadening factor based on a quantized line spectral frequency (LSF) vector of a first channel of a current frame of an audio signal and an LSF vector of a second channel of the current frame, and writing the quantized LSF vector and the adaptive broadening factor into a bitstream.

公开(公告)号：US12112761B2

公开(公告)日：2024-10-08

申请号：US18451975

申请日：2023-08-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

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

CPC classification number: G10L19/008 ,  G10L19/038 ,  G10L19/06 ,  G10L19/032 ,  G10L19/07

Abstract: An encoding method includes determining an adaptive broadening factor based on a quantized line spectral frequency (LSF) vector of a first channel of a current frame of an audio signal and an LSF vector of a second channel of the current frame, and writing the quantized LSF vector and the adaptive broadening factor into a bitstream.

公开(公告)号：US20240021209A1

公开(公告)日：2024-01-18

申请号：US18362453

申请日：2023-07-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

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

CPC classification number: G10L19/008 ,  G10L19/038 ,  G10L19/06 ,  G10L19/032

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：US20220406316A1

公开(公告)日：2022-12-22

申请号：US17893488

申请日：2022-08-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Haiting Li

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

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：US11501784B2

公开(公告)日：2022-11-15

申请号：US17135548

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 ,  G10L19/07 ,  G10L19/032

Abstract: An encoding method includes determining a target adaptive broadening factor based on a quantized line spectral frequency (LSF) parameter of a primary channel signal in a current frame and an LSF parameter of a secondary channel signal in the current frame, and writing the quantized LSF parameter of the primary channel signal in the current frame and the target adaptive broadening factor into a bitstream.

公开(公告)号：US11917391B2

公开(公告)日：2024-02-27

申请号：US17359871

申请日：2021-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Wang ,  Jonathan Alastair Gibbs

IPC: H04S7/00 ,  G10L21/034

CPC classification number: H04S7/303 ,  G10L21/034 ,  H04S2420/01

Abstract: In an audio signal processing method, a processing device obtains a current position relationship between a sound source and a listener. The processing device then obtains a current audio rendering function based on the current position relationship. When the current position relationship is different from a stored previous position relationship, the processing device adjusts an initial gain of the current audio rendering function based on the current position relationship and the previous position relationship, to obtain an adjusted gain of the current audio rendering function. The processing device then obtains an adjusted audio rendering function based on the current audio rendering function and the adjusted gain, and generates a current output signal based on a current input signal and the adjusted audio rendering function.

公开(公告)号：US11776553B2

公开(公告)日：2023-10-03

申请号：US17962878

申请日：2022-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Shlomot ,  Jonathan Alastair Gibbs ,  Halting Li

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

CPC classification number: G10L19/008 ,  G10L19/038 ,  G10L19/06 ,  G10L19/032 ,  G10L19/07

Abstract: An encoding method includes determining an adaptive broadening factor based on a quantized line spectral frequency (LSF) vector of a first channel of a current frame of an audio signal and an LSF vector of a second channel of the current frame, and writing the quantized LSF vector and the adaptive broadening factor into a bitstream.

公开(公告)号：US11636863B2

公开(公告)日：2023-04-25

申请号：US17552682

申请日：2021-12-16

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：US20220108709A1

公开(公告)日：2022-04-07

申请号：US17552682

申请日：2021-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Eyal Schlomot ,  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：US20210329399A1

公开(公告)日：2021-10-21

申请号：US17359871

申请日：2021-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin Wang ,  Jonathan Alastair Gibbs

IPC: H04S7/00

Abstract: In an audio signal processing method, a processing device obtains a current position relationship between a sound source and a listener. The processing device then obtains a current audio rendering function based on the current position relationship. When the current position relationship is different from a stored previous position relationship, the processing device adjusts an initial gain of the current audio rendering function based on the current position relationship and the previous position relationship, to obtain an adjusted gain of the current audio rendering function. The processing device then obtains an adjusted audio rendering function based on the current audio rendering function and the adjusted gain, and generates a current output signal based on a current input signal and the adjusted audio rendering function.