公开(公告)号：US20090116486A1

公开(公告)日：2009-05-07

申请号：US12264593

申请日：2008-11-04

申请人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

发明人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

IPC分类号： H04L12/56 ,  G10L11/00

CPC分类号： G10L19/005 ,  G10L19/0204 ,  G10L19/097

摘要： The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a signal; obtaining an attenuation factor, according to the change trend of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.

摘要翻译： 本发明公开了一种获得衰减因子的方法。 该方法适用于处理分组丢失隐藏中的合成信号，包括：获得信号的变化趋势; 根据信号的变化趋势获得衰减因子。 本发明还公开了一种用于获得衰减因子的装置。 通过使用本发明的历史信号的最新变化趋势来动态调整自适应衰减因子。 实现从历史数据到最后接收的数据的平滑过渡，使得尽可能地使补偿信号和原始信号之间的衰减速度保持一致，以适应各种人声的特征。

公开(公告)号：US20090316598A1

公开(公告)日：2009-12-24

申请号：US12556048

申请日：2009-09-09

申请人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

发明人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

IPC分类号： H04L12/26 ,  H04L12/66

CPC分类号： G10L19/005 ,  G10L19/0204 ,  G10L19/097

摘要： The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a pitch of a signal; obtaining an attenuation factor, according to the change trend of the pitch of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.

摘要翻译： 本发明公开了一种获得衰减因子的方法。 该方法适用于处理分组丢失隐藏中的合成信号，包括：获得信号间距的变化趋势; 根据信号音调的变化趋势获得衰减因子。 本发明还公开了一种用于获得衰减因子的装置。 通过使用本发明的历史信号的最新变化趋势来动态调整自适应衰减因子。 实现从历史数据到最后接收的数据的平滑过渡，使得尽可能地使补偿信号和原始信号之间的衰减速度保持一致，以适应各种人声的特征。

公开(公告)号：US20090292542A1

公开(公告)日：2009-11-26

申请号：US12539158

申请日：2009-08-11

申请人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

发明人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

IPC分类号： G10L13/00

CPC分类号： G10L19/005

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20090119098A1

公开(公告)日：2009-05-07

申请号：US12264557

申请日：2008-11-04

申请人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

发明人： Wuzhou ZHAN ,  Dongqi WANG ,  Yongfeng TU ,  Jing WANG ,  Qing ZHANG ,  Lei MIAO ,  Jianfeng XU ,  Chen HU ,  Yi YANG ,  Zhengzhong DU ,  Fengyan QI

IPC分类号： H04B1/38

CPC分类号： G10L19/005

摘要： 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.

摘要翻译： 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，以及 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。