公开(公告)号：US09047877B2

公开(公告)日：2015-06-02

申请号：US12763573

申请日：2010-04-20

申请人： Jinliang Dai ,  Eyal Shlomot ,  Deming Zhang

发明人： Jinliang Dai ,  Eyal Shlomot ,  Deming Zhang

IPC分类号： G10L19/012 ,  G10L19/24 ,  G10L25/78

CPC分类号： G10L25/78 ,  G10L19/012 ,  G10L19/24

摘要： A DTX decision method includes: obtaining sub-band signal(s) according to an input signal; obtaining a variation of characteristic information of each of the sub-band signals; and performing DTX decision according to the variation of the characteristic information of each of the sub-band signals. With the invention, a complete and appreciate DTX decision result is obtained by making full use of the noise characteristic in the speech encoding/decoding bandwidth and using band-splitting and layered processing. As a result, the SID encoding/CNG decoding may closely follow the characteristic variation of the actual noise.

摘要翻译： DTX判定方法包括：根据输入信号获取子带信号; 获得每个子带信号的特征信息的变化; 并根据每个子带信号的特征信息的变化执行DTX判定。 利用本发明，通过充分利用语音编码/解码带宽中的噪声特性并且使用频带分割和分层处理，可以获得完整和欣赏的DTX判定结果。 结果，SID编码/ CNG解码可以紧密跟随实际噪声的特征变化。

公开(公告)号：US08296132B2

公开(公告)日：2012-10-23

申请号：US12748190

申请日：2010-03-26

申请人： Deming Zhang ,  Jinliang Dai

发明人： Deming Zhang ,  Jinliang Dai

IPC分类号： G10L19/00

CPC分类号： G10L19/012

摘要： The disclosure provides a method for noise generation, including: determining an initial value of a reconstructed parameter; determining a random value range based on the initial value of the reconstructed parameter; taking a value in the random value range randomly as a reconstructed noise parameter; and generating noise by using the reconstructed noise parameter. The disclosure also provides an apparatus for noise generation.

摘要翻译： 本公开提供了一种用于噪声产生的方法，包括：确定重构参数的初始值; 基于重构参数的初始值确定随机值范围; 以随机值范围随机取值作为重构噪声参数; 并通过使用重构的噪声参数产生噪声。 本公开还提供了用于产生噪声的装置。

公开(公告)号：US20100268531A1

公开(公告)日：2010-10-21

申请号：US12763573

申请日：2010-04-20

申请人： Jinliang Dai ,  Eyal Shlomot ,  Deming Zhang

发明人： Jinliang Dai ,  Eyal Shlomot ,  Deming Zhang

IPC分类号： G10L11/06

CPC分类号： G10L25/78 ,  G10L19/012 ,  G10L19/24

摘要： A DTX decision method includes: obtaining sub-band signal(s) according to an input signal; obtaining a variation of characteristic information of each of the sub-band signals; and performing DTX decision according to the variation of the characteristic information of each of the sub-band signals. With the invention, a complete and appreciate DTX decision result is obtained by making full use of the noise characteristic in the speech encoding/decoding bandwidth and using band-splitting and layered processing. As a result, the SID encoding/CNG decoding may closely follow the characteristic variation of the actual noise.

摘要翻译： DTX判定方法包括：根据输入信号获取子带信号; 获得每个子带信号的特征信息的变化; 并根据每个子带信号的特征信息的变化执行DTX判定。 利用本发明，通过充分利用语音编码/解码带宽中的噪声特性并且使用频带分割和分层处理，可以获得完整和欣赏的DTX判定结果。 结果，SID编码/ CNG解码可以紧密跟随实际噪声的特征变化。

公开(公告)号：US07890322B2

公开(公告)日：2011-02-15

申请号：US12820738

申请日：2010-06-22

申请人： Jinliang Dai ,  Libin Zhang ,  Eyal Shlomot

发明人： Jinliang Dai ,  Libin Zhang ,  Eyal Shlomot

IPC分类号： G10L21/02

CPC分类号： G10L19/005 ,  G10L19/012

摘要： A method for speech signal processing is provided. Energy attenuation gain values are set for background noise signals corresponding to obtained background noise frames subsequent to an erasure concealment frame, so that differences between the energy attenuation gain values of the background noise signals corresponding to the background noise frames and the energy attenuation gain values of signals corresponding to their respective previous frames are within a threshold range. Energy attenuation of the background noise signals corresponding to the background noise frames is controlled by using the energy attenuation gain values. An apparatus for speech signal processing is also provided in embodiments of the present invention. By using the embodiments of the present invention, the energy transition between the area of erasure concealment signal and the area of background noise signal may be made natural and smooth, so as to improve the audio comfortable sensation of the listener.

摘要翻译： 提供了一种用于语音信号处理的方法。 对于与擦除隐藏帧之后的获得的背景噪声帧相对应的背景噪声信号设定能量衰减增益值，使得对应于背景噪声帧的背景噪声信号的能量衰减增益值与能量衰减增益值之间的差异 对应于它们各自的先前帧的信号在阈值范围内。 通过使用能量衰减增益值来控制对应于背景噪声帧的背景噪声信号的能量衰减。 在本发明的实施例中也提供了一种语音信号处理装置。 通过使用本发明的实施例，可以使擦除隐藏信号的区域与背景噪声信号的面积之间的能量转换自然平滑，从而提高收听者的音频舒适感。

公开(公告)号：US08370136B2

公开(公告)日：2013-02-05

申请号：US12886151

申请日：2010-09-20

申请人： Jinliang Dai ,  Libin Zhang

发明人： Jinliang Dai ,  Libin Zhang

IPC分类号： G10L21/02

CPC分类号： G10L21/00 ,  G10L19/012

摘要： A method and an apparatus for generating comfortable noises so as to improve user experience are disclosed. The method includes: if a received data frame is a noise frame, calculating a corresponding energy attenuation parameter based on the noise frame and a data frame received earlier than the noise frame; and attenuating noise energy based on the energy attenuation parameter to obtain a comfortable noise signal. An apparatus for generating comfortable noise is also provided.

摘要翻译： 公开了一种用于产生舒适噪音以提高用户体验的方法和装置。 该方法包括：如果接收到的数据帧是噪声帧，则基于噪声帧计算相应的能量衰减参数和在噪声帧之前接收的数据帧; 并基于能量衰减参数衰减噪声能量，以获得舒适的噪声信号。 还提供了一种产生舒适噪音的装置。

公开(公告)号：US20100324917A1

公开(公告)日：2010-12-23

申请号：US12881926

申请日：2010-09-14

申请人： Eyal Shlomot ,  Libin Zhang ,  Jinliang Dai

发明人： Eyal Shlomot ,  Libin Zhang ,  Jinliang Dai

IPC分类号： G10L19/00

CPC分类号： G10L19/012

摘要： An encoding method includes extracting background noise characteristic parameters within a hangover period; for a first superframe after the hangover period, performing background noise encoding based on the extracted background noise characteristic parameters; for superframes after the first superframe, performing background noise characteristic parameter extraction and DTX decision for each frame in the superframes after the first superframe; and for the superframes after the first superframe, performing background noise encoding based on extracted background noise characteristic parameters of the current superframe, background noise characteristic parameters of a plurality of superframes previous to the current superframe, and a final DTX decision. Also, a decoding method and apparatus and an encoding apparatus are disclosed.

摘要翻译： 编码方法包括在宿醉期内提取背景噪声特征参数; 对于在宿醉期之后的第一超帧，基于所提取的背景噪声特征参数执行背景噪声编码; 对于第一超帧之后的超帧，对第一超帧之后的超帧中的每帧执行背景噪声特性参数提取和DTX判定; 并且对于第一超帧之后的超帧，基于当前超帧的提取的背景噪声特性参数，在当前超帧之前的多个超帧的背景噪声特性参数和最终DTX判定来执行背景噪声编码。 另外，公开了一种解码方法和装置以及编码装置。

公开(公告)号：US08370135B2

公开(公告)日：2013-02-05

申请号：US12820805

申请日：2010-06-22

申请人： Eyal Shlomot ,  Libin Zhang ,  Jinliang Dai

发明人： Eyal Shlomot ,  Libin Zhang ,  Jinliang Dai

IPC分类号： G10L21/02

CPC分类号： G10L19/012

摘要： An encoding method includes extracting background noise characteristic parameters within a hangover period, for a first superframe after the hangover period, performing background noise encoding based on the extracted background noise characteristic parameters, for superframes after the first superframe, performing background noise characteristic parameter extraction and DTX decision for each frame in the superframes after the first superframe, and for the superframes after the first superframe, performing background noise encoding based on extracted background noise characteristic parameters of the current superframe, background noise characteristic parameters of a plurality of superframes previous to the current superframe, and a final DTX decision. Also, a decoding method and apparatus and an encoding apparatus are disclosed. Bandwidth occupancy may be reduced substantially while the signal quality may be guaranteed.

摘要翻译： 一种编码方法，包括：在宿醉期后，针对第一超帧，在所述宿醉期后提取背景噪声特性参数，对所述第一超帧之后的超帧执行基于所提取的背景噪声特性参数的背景噪声编码，执行背景噪声特征参数提取，以及 在第一超帧之后的超帧中的每帧的DTX决定以及第一超帧之后的超帧，基于提取的当前超帧的背景噪声特性参数执行背景噪声编码，在先前的多个超帧之前的多个超帧的背景噪声特性参数 目前的超帧，最后的DTX决定。 另外，公开了一种解码方法和装置以及编码装置。 可以在保证信号质量的同时大幅度减小带宽占用。

公开(公告)号：US08078459B2

公开(公告)日：2011-12-13

申请号：US12815028

申请日：2010-06-14

申请人： Jinliang Dai

发明人： Jinliang Dai

IPC分类号： G01L19/00 ,  G01L21/00 ,  G10L21/04

CPC分类号： G10L19/24 ,  G10L19/06

摘要： A method and device for updating statuses of synthesis filters are provided. The method includes: exciting a synthesis filter corresponding to a first encoding rate by using an excitation signal of the first encoding rate, outputting reconstructed signal information, and updating status information of the synthesis filter and a synthesis filter corresponding to a second encoding rate. In the present disclosure, the status of the synthesis filter corresponding to the current rate and the statuses of the synthesis filters at other rates are updated. Thus, synchronization between the statuses of the synthesis filters corresponding to different rates at the encoding terminal may be realized, thereby facilitating the consistency of the reconstructed signals of the encoding and decoding terminals when the encoding rate is switched, and improving the quality of the reconstructed signal of the decoding terminal.

摘要翻译： 提供了一种用于更新合成滤波器状态的方法和装置。 该方法包括：通过使用第一编码率的激励信号，输出重构的信号信息和更新合成滤波器的状态信息和对应于第二编码率的合成滤波器来激励对应于第一编码率的合成滤波器。 在本公开中，更新与当前速率对应的合成滤波器的状态和其它速率的合成滤波器的状态。 因此，可以实现与编码终端的不同速率对应的合成滤波器的状态之间的同步，从而在切换编码速率时有助于编码和解码终端的重建信号的一致性，并且提高重构的编码速率的质量 解码终端的信号。

公开(公告)号：US20100217753A1

公开(公告)日：2010-08-26

申请号：US12772190

申请日：2010-05-01

申请人： Eyal Shlomot ,  Jinliang Dai ,  Fuliang Yin ,  Xin Ma ,  Jun Zhang

发明人： Eyal Shlomot ,  Jinliang Dai ,  Fuliang Yin ,  Xin Ma ,  Jun Zhang

IPC分类号： G06F17/30

CPC分类号： G10L19/06 ,  G10L19/07 ,  G10L2019/0005 ,  G10L2019/0007 ,  H03M7/3082

摘要： The invention discloses a multi-stage quantization method, which includes the following steps: obtaining a reference codebook according to a previous stage codebook; obtaining a current stage codebook according to the reference codebook and a scaling factor; and quantizing an input vector by using the current stage codebook. The invention also discloses a multi-stage quantization device. With the invention, the current stage codebook may be obtained according to the previous stage codebook, by using the correlation between the current stage codebook and the previous stage codebook. As a result, it does not require an independent codebook space for the current stage codebook, which saves the storage space and improves the resource usage efficiency.

摘要翻译： 本发明公开了一种多级量化方法，包括以下步骤：获得根据前一级码本的参考码本; 根据参考码本和缩放因子获得当前阶段码本; 并通过使用当前阶段码本量化输入向量。 本发明还公开了一种多级量化装置。 利用本发明，可以通过使用当前阶段码本和前一级码本之间的相关性，根据前一级码本获得当前级码本。 因此，不需要当前级码本的独立码本空间，可以节省存储空间，提高资源使用效率。

公开(公告)号：US08494846B2

公开(公告)日：2013-07-23

申请号：US12886159

申请日：2010-09-20

申请人： Jinliang Dai ,  Libin Zhang

发明人： Jinliang Dai ,  Libin Zhang

IPC分类号： G10L21/02 ,  G10L19/00

CPC分类号： G10L19/012

摘要： A method for generating background noise and a noise processing apparatus are provided in order to improve user experience. The method includes: if an obtained signal frame is a noise frame, a high band noise encoding parameter is obtained from the noise frame; weighting and/or smoothing is performed on the high band noise encoding parameter to obtain a second high band noise encoding parameter; and a high band background noise signal is generated according to the second high band noise encoding parameter. A noise processing apparatus is also provided.

摘要翻译： 提供了一种用于产生背景噪声的方法和噪声处理装置，以便改善用户体验。 该方法包括：如果获得的信号帧是噪声帧，则从噪声帧获得高频带噪声编码参数; 对高频带噪声编码参数进行加权和/或平滑以获得第二高频带噪声编码参数; 并根据第二高频带噪声编码参数产生高频带背景噪声信号。 还提供了一种噪声处理装置。