公开(公告)号：US20160035364A1

公开(公告)日：2016-02-04

申请号：US14879388

申请日：2015-10-09

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Zexin LIU ,  Lei MIAO ,  Anisse TALEB

IPC: G10L19/032 ,  G10L21/038 ,  G10L25/18 ,  G10L19/20

CPC classification number: G10L19/032 ,  G10L19/025 ,  G10L19/20 ,  G10L21/038 ,  G10L25/18 ,  H04N19/60

Abstract: A method and a device for encoding a high frequency signal, and a method and a device for decoding a high frequency signal are provided, which relate to encoding and decoding technology. The method for encoding a high frequency signal includes: determining a signal type of a high frequency signal of a current frame; smoothing and scaling time envelopes of the high frequency signal of the current frame and obtaining time envelopes of the high frequency signal of the current frame that require to be encoded, if the high frequency signal of the current frame is a non-transient signal and a high frequency signal of the previous frame is a transient signal; and quantizing and encoding the time envelopes of the high frequency signal of the current frame that require to be encoded, and frequency information and signal type information of the high frequency signal of the current frame.

公开(公告)号：US20140012571A1

公开(公告)日：2014-01-09

申请号：US13957078

申请日：2013-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse TALEB ,  Jianfeng XU ,  David VIRETTE

IPC: H04L29/06

CPC classification number: H04L29/0651 ,  G10L19/06 ,  G10L19/08 ,  G10L25/06 ,  G10L25/12

Abstract: A method and apparatus for providing signal processing coefficients for processing an input signal at a predetermined signal processing sampling rate, wherein the input signal is received at an input signal sampling rate, the method comprising the steps of computing a correlation or covariance function based on the received input signal at the input signal sampling rate to provide correlation or covariance coefficients at the input signal sampling rate, re-sampling the computed correlation or covariance coefficients having the input signal sampling rate to provide correlation or covariance coefficients at the predetermined signal processing sampling rate, and calculating the signal processing coefficients based on the correlation or covariance coefficients at the predetermined signal processing sampling rate.

Abstract translation: 一种用于以预定的信号处理采样率提供用于处理输入信号的信号处理系数的方法和装置，其中输入信号以输入信号采样率被接收，该方法包括以下步骤：基于 以输入信号采样率接收输入信号，以在输入信号采样率下提供相关或协方差系数，对具有输入信号采样率的计算的相关或协方差系数进行重新采样，以在预定信号处理采样率提供相关或协方差系数 ，并且基于在预定信号处理采样率下的相关或协方差系数来计算信号处理系数。

公开(公告)号：US20130304461A1

公开(公告)日：2013-11-14

申请号：US13940494

申请日：2013-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse TALEB ,  David VIRETTE ,  Jianfeng XU

IPC: G10L21/0208

CPC classification number: G10L21/0208 ,  G10L21/02 ,  G10L25/69 ,  H04Q3/00

Abstract: A voice quality enhancement (VQE) detector for a network element receiving an audio signal from a previous network element of a network, wherein said voice quality enhancement detector is adapted: to perform a voice quality enhancement detection based on the received audio signal, wherein said voice quality enhancement detection comprises detecting that at least one voice quality enhancement function, VQEF, was applied to the received audio signal by at least one previous network element of the network; and to control a voice quality enhancement processing of the received audio signal depending on the detection result.

Abstract translation: 一种用于网络元件接收来自网络的先前网络元件的音频信号的语音质量增强（VQE）检测器，其中所述语音质量增强检测器适于：基于所接收的音频信号执行语音质量增强检测，其中所述 语音质量增强检测包括检测由网络的至少一个先前网络元件将至少一个语音质量增强功能VQEF应用于所接收的音频信号; 并且根据检测结果控制所接收的音频信号的语音质量增强处理。

公开(公告)号：US20130117029A1

公开(公告)日：2013-05-09

申请号：US13728201

申请日：2012-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zexin LIU ,  Lei MIAO ,  Anisse TALEB

IPC: G10L19/008

CPC classification number: G10L19/265 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/20 ,  G10L21/0388

Abstract: Embodiments of the present invention provide a signal classification method and device, and encoding and decoding methods and devices. The encoding method includes: dividing a current frame into a low-frequency band signal and a high-frequency band signal; attenuating the high-frequency band signal or a to-be-encoded characteristic parameter of the high-frequency band signal according to an energy attenuation value of the low-frequency band signal, where the energy attenuation value indicates energy attenuation of the low-frequency band signal caused by encoding of the low-frequency band signal; and encoding the attenuated high-frequency band signal or the attenuated to-be-encoded characteristic parameter of the high-frequency band signal. The technical solutions according to the embodiments of the present invention can improve the effect of combining the low-frequency band signal and the high-frequency band signal at the decoder.

Abstract translation: 本发明的实施例提供信号分类方法和装置，以及编码和解码方法和装置。 该编码方法包括：将当前帧划分成低频带信号和高频带信号; 根据低频带信号的能量衰减值对高频带信号的高频带信号或待编码的特征参数进行衰减，其中能量衰减值表示低频带信号的能量衰减 由低频带信号的编码引起的频带信号; 对衰减的高频带信号或衰减的待编码的高频信号的特征参数进行编码。 根据本发明的实施例的技术方案可以改善在解码器处组合低频带信号和高频带信号的效果。