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    • 2. 发明申请
    • METHOD AND DEVICE FOR PERFORMING FRAME ERASURE CONCEALMENT ON HIGHER-BAND SIGNAL
    • 用于对高频信号进行帧擦除的方法和装置
    • US20090076808A1
    • 2009-03-19
    • US12273391
    • 2008-11-18
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • G10L11/04
    • G10L19/005G10L19/0204
    • 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.
    • 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。
    • 4. 发明授权
    • Method and device for performing frame erasure concealment on higher-band signal
    • 在较高频带信号上执行帧擦除隐藏的方法和装置
    • US07552048B2
    • 2009-06-23
    • US12273391
    • 2008-11-18
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • G10L11/04G10L19/00
    • G10L19/005G10L19/0204
    • 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.
    • 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。
    • 5. 发明授权
    • Method and device for performing frame erasure concealment to higher-band signal
    • 用于对较高频带信号进行帧擦除隐藏的方法和装置
    • US08200481B2
    • 2012-06-12
    • US12129118
    • 2008-05-29
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • Jianfeng XuLei MiaoChen HuQing ZhangLijing XuWei LiZhengzhong DuYi YangFengyan QiWuzhou ZhanDongqi Wang
    • G10L11/04G10L19/00
    • G10L19/005G10L19/0204
    • 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.
    • 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。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR IMPLEMENTING SPEECH DECODING IN SPEECH DECODER FIELD OF THE INVENTION
    • 用于在语音解码器中实现语音解码的方法和装置技术领域
    • US20090204396A1
    • 2009-08-13
    • US12426379
    • 2009-04-20
    • Jianfeng XuLijing XuQing ZhangWei LiShenghu SangZhengzhong DuChen Hu
    • Jianfeng XuLijing XuQing ZhangWei LiShenghu SangZhengzhong DuChen Hu
    • G10L11/04
    • G10L19/005G10L19/09G10L19/107
    • 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.
    • 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。
    • 8. 发明授权
    • Method and apparatus for implementing speech decoding in speech decoder field of the invention
    • 在本发明的语音解码器领域中实现语音解码的方法和装置
    • US08145480B2
    • 2012-03-27
    • US12426379
    • 2009-04-20
    • Jianfeng XuLijing XuQing ZhangWei LiShenghu SangZhengzhong DuChen Hu
    • Jianfeng XuLijing XuQing ZhangWei LiShenghu SangZhengzhong DuChen Hu
    • G10L21/02G10L19/00
    • G10L19/005G10L19/09G10L19/107
    • 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.
    • 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。
    • 9. 发明授权
    • Signal processing method, processing apparatus and voice decoder
    • 信号处理方法,处理装置和语音解码器
    • US07835912B2
    • 2010-11-16
    • US12539158
    • 2009-08-11
    • Wuzhou ZhanDongqi WangYongfeng TuJing WangQing ZhangLei MiaoJianfeng XuChen HuYi YangZhengzhong DuFengyan Qi
    • Wuzhou ZhanDongqi WangYongfeng TuJing WangQing ZhangLei MiaoJianfeng XuChen HuYi YangZhengzhong DuFengyan Qi
    • G10L13/00G10L19/00
    • G10L19/005
    • The present invention discloses a signal processing method adapted to process a synthesized signal in packet loss concealment. The method includes the following steps: receiving a good frame following a lost frame, obtaining an energy ratio of energy of a signal in the signal of the good frame signal to energy of a synthesized signal corresponding to the same time of the good frame; and adjusting the synthesized signal in accordance with the energy ratio. The present invention also discloses a signal processing apparatus and a voice decoder. Through using the method provided by the present invention, the synthesized signal is adjusted in accordance with the energy ratio of the energy of the first good frame following the lost frame to the energy of the synthesized signal to ensure that there be not a waveform sudden change or an energy sudden change at the place where the lost frame and the first good frame following the lost frame are jointed in the synthesized signal, to realize the waveform's smooth transition and to avoid music noises.
    • 本发明公开了一种适用于处理分组丢失隐藏中的合成信号的信号处理方法。 该方法包括以下步骤:接收丢失帧之后的良好帧,获得良好帧信号的信号中的信号的能量与对应于良好帧的相同时间的合成信号的能量的能量比; 并根据能量比调整合成信号。 本发明还公开了一种信号处理装置和语音解码器。 通过使用本发明提供的方法,根据丢失帧之后的第一好帧的能量​​与合成信号的能量的能量比来调整合成信号,以确保没有波形突然变化 或者丢失帧和丢失帧之后的第一好帧相连接在合成信号中的位置处的能量突然变化,以实现波形的平滑过渡并避免音乐噪声。