公开(公告)号：US20090204396A1

公开(公告)日：2009-08-13

申请号：US12426379

申请日：2009-04-20

申请人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

发明人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

IPC分类号： G10L11/04

CPC分类号： G10L19/005 ,  G10L19/09 ,  G10L19/107

摘要： The present disclosure relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating a pitch lag parameter of the erroneous frame; decoding the data frames according to the calculated pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter includes: determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, wherein the preset adjustment policy is adjusting the determined pitch lag parameter of the current erroneous frame within a preset value range according to the number of the continuous erroneous frames.

摘要翻译： 本公开涉及一种解码方法和装置。 该方法包括：从编码器接收数据帧; 如果出现任何错误帧，则计算错误帧的音调滞后参数; 根据所计算的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。 确定音调滞后参数的过程包括：确定连续错误帧的数量和前一帧的音调滞后参数; 根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，以及计算和确定当前错误帧的音调滞后参数，其中预设调整策略正在调整所确定的音调滞后参数 根据连续错误帧的数量在预设值范围内的当前错误帧。

公开(公告)号：US08145480B2

公开(公告)日：2012-03-27

申请号：US12426379

申请日：2009-04-20

申请人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

发明人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

IPC分类号： G10L21/02 ,  G10L19/00

CPC分类号： G10L19/005 ,  G10L19/09 ,  G10L19/107

摘要： The present disclosure relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating a pitch lag parameter of the erroneous frame; decoding the data frames according to the calculated pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter includes: determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, wherein the preset adjustment policy is adjusting the determined pitch lag parameter of the current erroneous frame within a preset value range according to the number of the continuous erroneous frames.

摘要翻译： 本公开涉及一种解码方法和装置。 该方法包括：从编码器接收数据帧; 如果出现任何错误帧，则计算错误帧的音调滞后参数; 根据所计算的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。 确定音调滞后参数的过程包括：确定连续错误帧的数量和前一帧的音调滞后参数; 根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，以及计算和确定当前错误帧的音调滞后参数，其中预设调整策略正在调整所确定的音调滞后参数 根据连续错误帧的数量在预设值范围内的当前错误帧。

公开(公告)号：US08447622B2

公开(公告)日：2013-05-21

申请号：US12427848

申请日：2009-04-22

申请人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du

发明人： Jianfeng Xu ,  Lijing Xu ,  Qing Zhang ,  Wei Li ,  Shenghu Sang ,  Zhengzhong Du

IPC分类号： G10L19/00 ,  G10L19/14

CPC分类号： G10L19/005

摘要： A decoding method and device are provided. The spectrum parameter of a current bad data frame is determined. Specifically, a number of continuous bad frames that occur currently is determined. A spectrum parameter of a good data frame before the current bad data frame is determined. And a constant mean value of a spectrum parameter is determined. Then, the spectrum parameter of the good data frame is adaptively shifted towards the constant mean value of the spectrum parameter according to the number of the continuous bad data frames to calculate and obtain spectrum parameter information of the current bad frame. When the continuous bad data frames occur, the relevance between the spectrum parameter of the nearest good frame and the spectrum parameter of the current bad frame is gradually reduced, so that more accurate spectrum parameter of the current bad data frame can be obtained, thereby obtaining a better speech quality under a same code rate and a same frame error rate.

摘要翻译： 提供了一种解码方法和装置。 确定当前不良数据帧的频谱参数。 具体地，确定当前发生的多个连续的坏帧。 确定当前不良数据帧之前的良好数据帧的频谱参数。 并确定频谱参数的恒定平均值。 然后，根据连续不良数据帧的数量，将良好数据帧的频谱参数自适应地偏移到频谱参数的常数平均值，以计算并获得当前坏帧的频谱参数信息。 当发生连续不良数据帧时，最近好帧的频谱参数与当前不良帧的频谱参数之间的相关性逐渐减小，从而可以获得当前不良数据帧的更准确的频谱参数，从而获得 在相同的码率和相同的帧错误率下，更好的语音质量。

公开(公告)号：US20090299757A1

公开(公告)日：2009-12-03

申请号：US12508103

申请日：2009-07-23

申请人： Wei Guo ,  Peilin Liu ,  Wei Li ,  Lijing Xu ,  Qing Zhang ,  Jainfeng Xu ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

发明人： Wei Guo ,  Peilin Liu ,  Wei Li ,  Lijing Xu ,  Qing Zhang ,  Jainfeng Xu ,  Shenghu Sang ,  Zhengzhong Du ,  Chen Hu

IPC分类号： G10L19/00

CPC分类号： G10L19/18 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/04

摘要： An method for encoding comprising: obtaining, according to a data length of a first overlapped portion between encoding data of a current frame and encoding data of a previous frame, first encoding data corresponding to the data length of the first overlapped portion from the previous frame, if the previous frame is encoded in a first encoding mode and the current frame is to be encoded in a second encoding mode; and encoding, in the second encoding mode, the first encoding data corresponding to the data length of the first overlapped portion from the previous frame and encoding data of the current frame. The corresponding decoding method, encoding and decoding apparatuses are also disclosed.

摘要翻译： 一种用于编码的方法，包括：根据当前帧的编码数据与前一帧的编码数据之间的第一重叠部分的数据长度获得与来自前一帧的第一重叠部分的数据长度相对应的第一编码数据 如果先前帧以第一编码模式编码并且当前帧将以第二编码模式编码; 以及在第二编码模式中，对应于来自前一帧的第一重叠部分的数据长度的第一编码数据和当前帧的编码数据进行编码。 还公开了相应的解码方法，编码和解码装置。

公开(公告)号：US20090076808A1

公开(公告)日：2009-03-19

申请号：US12273391

申请日：2008-11-18

申请人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： G10L11/04

CPC分类号： G10L19/005 ,  G10L19/0204

摘要： A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.

摘要翻译： 用于执行较高频带信号的帧擦除隐藏的方法包括：计算相对于较低频带信号的音调周期信息的较高频带信号的周期性强度; 将周期性强度与预配置的阈值进行比较，并且如果周期性强度大于或等于预配置阈值，则以基于音调周期重复的方法执行帧擦除隐藏。 如果周期性强度小于预配置阈值，则使用先前基于帧数据重复的方法来执行帧擦除隐藏。 用于执行帧擦除隐藏的装置包括周期性强度计算模块，音调周期重复模块和先前的帧数据重复模块。 音调周期重复模块以音调周期重复方式执行帧擦除隐藏; 前一帧数据重复模块利用先前基于帧数据重复的方法执行帧擦除隐藏。

公开(公告)号：US20090076807A1

公开(公告)日：2009-03-19

申请号：US12134410

申请日：2008-06-06

申请人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： G10L11/04

CPC分类号： G10L19/005 ,  G10L19/0204

摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.

摘要翻译： 本发明公开了一种用于对较高频带信号执行帧擦除隐藏的方法，包括：计算相对于较低频带信号的较高频带信号的周期性强度; 判断高频信号的周期性强度是否高于或等于预配置阈值; 如果高频信号的周期性强度高于或等于预配置阈值，则使用音调周期重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏; 并且如果高频信号的周期性强度低于预配置阈值，则使用先前的帧数据重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏。 本发明还公开了一种用于对较高频带信号和语音解码器执行帧擦除隐藏的装置。 避免语音信号质量下降的问题。

公开(公告)号：US07552048B2

公开(公告)日：2009-06-23

申请号：US12273391

申请日：2008-11-18

申请人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： G10L11/04 ,  G10L19/00

CPC分类号： G10L19/005 ,  G10L19/0204

摘要： A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.

摘要翻译： 用于执行较高频带信号的帧擦除隐藏的方法包括：计算相对于较低频带信号的音调周期信息的较高频带信号的周期性强度; 将周期性强度与预配置的阈值进行比较，并且如果周期性强度大于或等于预配置阈值，则以基于音调周期重复的方法执行帧擦除隐藏。 如果周期性强度小于预配置阈值，则使用先前基于帧数据重复的方法来执行帧擦除隐藏。 用于执行帧擦除隐藏的装置包括周期性强度计算模块，音调周期重复模块和先前的帧数据重复模块。 音调周期重复模块以音调周期重复方式执行帧擦除隐藏; 前一帧数据重复模块利用先前基于帧数据重复的方法执行帧擦除隐藏。

公开(公告)号：US08200481B2

公开(公告)日：2012-06-12

申请号：US12129118

申请日：2008-05-29

申请人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： G10L11/04 ,  G10L19/00

CPC分类号： G10L19/005 ,  G10L19/0204

摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.

摘要翻译： 本发明公开了一种用于对较高频带信号执行帧擦除隐藏的方法，包括：计算相对于较低频带信号的较高频带信号的周期性强度; 判断高频信号的周期性强度是否高于或等于预配置阈值; 如果高频信号的周期性强度高于或等于预配置阈值，则使用音调周期重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏; 并且如果高频信号的周期性强度低于预配置阈值，则使用先前的帧数据重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏。 本发明还公开了一种用于对较高频带信号和语音解码器执行帧擦除隐藏的装置。 避免语音信号质量下降的问题。

公开(公告)号：US08219395B2

公开(公告)日：2012-07-10

申请号：US12427112

申请日：2009-04-21

申请人： Ling Shen ,  Jianfeng Xu ,  Yaohua Guan ,  Wei Li ,  Lei Miao ,  Lijing Xu ,  Qing Zhang ,  Zhengzhong Du ,  Chen Hu ,  Yi Yang

发明人： Ling Shen ,  Jianfeng Xu ,  Yaohua Guan ,  Wei Li ,  Lei Miao ,  Lijing Xu ,  Qing Zhang ,  Zhengzhong Du ,  Chen Hu ,  Yi Yang

IPC分类号： G10L21/02 ,  G10L19/00

CPC分类号： H04L1/0083 ,  G10L19/005

摘要： A frame compensation method is provided. The method includes: obtaining a length of a lost frame and a length of a correct frame; determining that the length of the correct frame is integral power of 2 times of the length of the lost frame, and then obtaining a data sequence with the same length as the length of the lost frame according to the correct frame; and compensating the lost frame according to the data sequence to obtain a compensated data frame. A frame compensation system is also provided. Lost frames in various formats are compensated according to correct frames in various formats, so that the limitation of the related art that a lost frame in a single format can be merely compensated according to a correct frame in a single format is eliminated, and the effect of the compensated data frames is better than that of filling comfort noises.

摘要翻译： 提供了帧补偿方法。 该方法包括：获得丢失帧的长度和正确帧的长度; 确定正确帧的长度是丢失帧长度的2倍的整数倍，然后根据正确的帧获得与丢失帧的长度相同长度的数据序列; 并根据数据序列补偿丢失帧以获得补偿数据帧。 还提供了帧补偿系统。 各种格式的丢帧按照各种格式的正确帧进行补偿，因此消除了相关技术的限制，即单个格式的丢失帧只能根据单一格式的正确帧进行补偿，并且效果 的补偿数据帧优于填充舒适噪声。

公开(公告)号：US20090076805A1

公开(公告)日：2009-03-19

申请号：US12129118

申请日：2008-05-29

申请人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

发明人： Jianfeng Xu ,  Lei Miao ,  Chen Hu ,  Qing Zhang ,  Lijing Xu ,  Wei Li ,  Zhengzhong Du ,  Yi Yang ,  Fengyan Qi ,  Wuzhou Zhan ,  Dongqi Wang

IPC分类号： G10L11/04 ,  G10L21/00

CPC分类号： G10L19/005 ,  G10L19/0204

摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.