公开(公告)号：US20140172420A1

公开(公告)日：2014-06-19

申请号：US14187523

申请日：2014-02-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  Jianfeng Xu ,  Liyun Pang ,  Lei Miao

IPC: G10L21/0224

CPC classification number: G10L21/0224 ,  G10L19/005 ,  G10L21/04 ,  H04J3/0632 ,  H04L29/06462 ,  H04L29/06489 ,  H04L29/06517 ,  H04L29/06523 ,  H04N21/4392 ,  H04N21/4398 ,  H04N21/44209 ,  H04N21/6437

Abstract: A voice or audio signal processor for processing received network packets received over a communication network to provide an output signal, the voice or audio signal processor comprising a jitter buffer being configured to buffer the received network packets, a voice or audio decoder being configured to decode the received network packets as buffered by the jitter buffer to obtain a decoded voice or audio signal, a controllable time scaler being configured to amend a length of the decoded voice or audio signal to obtain a time scaled voice or audio signal as the output voice or audio signal, and an adaptation control means being configured to control an operation of the time scaler in dependency on a processing complexity measure.

Abstract translation: 一种用于处理通过通信网络接收的接收的网络分组以提供输出信号的语音或音频信号处理器，所述语音或音频信号处理器包括被配置为缓冲所接收的网络分组的抖动缓冲器，语音或音频解码器被配置为解码 接收到的由抖动缓冲器缓冲的网络分组以获得解码的语音或音频信号，可控时间缩放器被配置为修改解码的语音或音频信号的长度，以获得时间缩放的语音或音频信号作为输出语音，或 音频信号和适配控制装置被配置为根据处理复杂度测量来控制时间缩放器的操作。

公开(公告)号：US20140006016A1

公开(公告)日：2014-01-02

申请号：US13918263

申请日：2013-06-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengyan Qi ,  Lei Miao

IPC: G10L19/00

CPC classification number: G10L19/0017 ,  G10L19/24 ,  H04B7/0647

Abstract: A voice signal encoding and decoding method, device, and codec system are provided. The coding method includes: encoding an input voice signal to obtain a broadband code stream, where the broadband code stream includes a core layer bit stream and an extension enhancement layer bit stream (101); compressing the core layer bit stream to obtain a compressed code stream (102); and packing the compressed code stream and the extension enhancement layer bit stream to obtain a packed code stream (103). The core layer bit stream compressed, and the compressed code stream and the extension enhancement layer bit stream are packed, thereby reducing transmission bandwidth occupied by the input voice signal. Since the broadband voice encoding is performed on the input voice signal, a broadband voice code stream is transmitted by using narrowband transmission bandwidth, thereby improving the cost performance of voice signal transmission.

Abstract translation: 提供语音信号编码和解码方法，设备和编解码系统。 编码方法包括：编码输入语音信号以获得宽带码流，其中宽带码流包括核心层比特流和扩展增强层比特流（101）; 压缩核心层比特流以获得压缩码流（102）; 以及打包压缩码流和扩展增强层比特流以获得打包码流（103）。 压缩核心层比特流，压缩码流和扩展增强层比特流被打包，从而减少输入语音信号占用的传输带宽。 由于在输入语音信号上执行宽带语音编码，所以通过使用窄带传输带宽来发送宽带语音码流，从而提高语音信号传输的成本性能。

公开(公告)号：US12154577B2

公开(公告)日：2024-11-26

申请号：US18361028

申请日：2023-07-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: G10L19/008 ,  H04S3/00

Abstract: A method for encoding an audio signal includes obtaining an ITD value of a current frame of an audio signal; obtaining a characteristic parameter of the current frame, wherein the characteristic parameter comprises at least one of a signal-to-noise ratio of the current frame or a peak feature of cross-correlation coefficients of the current frame; determining, based on the characteristic parameter, whether to use the initial ITD value as the finalized ITD value of the current frame; and encoding the current frame based on the finalized ITD value of the current frame, wherein if the initial ITD value is determined as not used as the finalized ITD value of the current frame, the finalized ITD value of the current frame is the same as a finalized ITD value of a previous frame of the current frame.

公开(公告)号：US20240185867A1

公开(公告)日：2024-06-06

申请号：US18538381

申请日：2023-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Wang ,  Lei Miao ,  Zexin Liu

IPC: G10L19/02 ,  G10L19/002

CPC classification number: G10L19/0204 ,  G10L19/002 ,  G10L19/02

Abstract: A signal processing method and device includes obtaining spectral coefficients of a current frame of an audio signal, in which N sub-bands of the current frame comprises at least one of the spectral coefficients. A total energy of M successive sub-bands of the N sub-bands, a total energy of K successive sub-bands of the N sub-bands, and an energy of a first sub-band are obtained to determine whether to modify original envelope values of the M sub-bands. When the original envelope values of the M sub-bands are modified, encoding bits are allocated to each of the N sub-bands according to the modified envelope values of the M sub-bands.

公开(公告)号：US20240161756A1

公开(公告)日：2024-05-16

申请号：US18419794

申请日：2024-01-23

Applicant: Huawei Technologies Co., Ltd.

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

IPC: G10L19/008 ,  G10L19/022

CPC classification number: G10L19/008 ,  G10L19/022 ,  H04S3/00

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：US20240135938A1

公开(公告)日：2024-04-25

申请号：US18393866

申请日：2023-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zexin Liu ,  Lei Miao

IPC: G10L19/008 ,  G10L19/02 ,  G10L19/032

CPC classification number: G10L19/008 ,  G10L19/0204 ,  G10L19/032

Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal, determining an initial reverberation gain parameter of the first channel signal and the second channel signal, determining a target reverberation gain parameter of the first channel signal and the second channel signal based on a correlation between the first channel signal and the downmixed signal, a correlation between the second channel signal and the downmixed signal, and the initial reverberation gain parameter, quantizing the first channel signal and the second channel signal based on the downmixed signal and the target reverberation gain parameter, and writing a quantized first channel signal and a quantized second channel signal into a bitstream.

公开(公告)号：US11915709B2

公开(公告)日：2024-02-27

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 ,  G10L19/022 ,  G10L19/18 ,  G10L19/02 ,  G10L19/00 ,  G10L25/18

CPC classification number: 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：US20240056764A1

公开(公告)日：2024-02-15

申请号：US18493319

申请日：2023-10-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zexin Liu ,  Lei Miao

IPC: H04S7/00 ,  G10K15/08 ,  G10L19/008 ,  G10L19/16 ,  G10L19/22

CPC classification number: H04S7/305 ,  G10K15/08 ,  G10L19/008 ,  G10L19/173 ,  G10L19/22

Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, and reverberation gain parameters corresponding to different subbands of the first channel signal and the second channel signal, where the obtained reverberation gain parameters belong to at least two reverberation gain parameter groups. The method further includes selecting, from the at least two reverberation gain parameter groups, a target reverberation gain parameter group. The method further includes generating parameter indication information, where the parameter indication information indicates the target reverberation gain parameter group. The method further includes encoding reverberation gain parameters corresponding to the target reverberation gain parameter group, the parameter indication information, and the downmixed signal to obtain a bitstream.

公开(公告)号：US20240029746A1

公开(公告)日：2024-01-25

申请号：US18361028

申请日：2023-07-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: G10L19/008 ,  H04S3/00

CPC classification number: G10L19/008 ,  H04S3/00 ,  H04S2420/03

Abstract: A method for encoding an audio signal includes obtaining an ITD value of a current frame of an audio signal; obtaining a characteristic parameter of the current frame, wherein the characteristic parameter comprises at least one of a signal-to-noise ratio of the current frame or a peak feature of cross-correlation coefficients of the current frame; determining, based on the characteristic parameter, whether to use the initial ITD value as the finalized ITD value of the current frame; and encoding the current frame based on the finalized ITD value of the current frame, wherein if the initial ITD value is determined as not used as the finalized ITD value of the current frame, the finalized ITD value of the current frame is the same as a finalized ITD value of a previous frame of the current frame.

公开(公告)号：US11881226B2

公开(公告)日：2024-01-23

申请号：US18157518

申请日：2023-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Wang ,  Lei Miao ,  Zexin Liu

IPC: G10L19/02 ,  G10L19/002

CPC classification number: G10L19/0204 ,  G10L19/002 ,  G10L19/02

Abstract: A signal processing method and device includes obtaining spectral coefficients of a current frame of an audio signal, in which N sub-bands of the current frame comprises at least one of the spectral coefficients. A total energy of M successive sub-bands of the N sub-bands, a total energy of K successive sub-bands of the N sub-bands, and an energy of a first sub-band are obtained to determine whether to modify original envelope values of the M sub-bands. When the original envelope values of the M sub-bands are modified, encoding bits are allocated to each of the N sub-bands according to the modified envelope values of the M sub-bands.