公开(公告)号：US20110320211A1

公开(公告)日：2011-12-29

申请号：US13172509

申请日：2011-06-29

申请人： Zexin LIU ,  Lei MIAO ,  Longyin CHEN ,  Chen HU ,  Herve Marcel TADDEI ,  Qing ZHANG

发明人： Zexin LIU ,  Lei MIAO ,  Longyin CHEN ,  Chen HU ,  Herve Marcel TADDEI ,  Qing ZHANG

IPC分类号： G10L19/00

CPC分类号： G10L19/0208 ,  G10L19/26 ,  G10L21/0208

摘要： A method and an apparatus for processing a signal are provided. The method includes: obtaining an energy average value of each sub-band for a current frame frequency-domain signal; obtaining a current frame modification coefficient of each sub-band for the current frame frequency-domain signal according to a spectral envelope and the energy average value of each sub-band; obtaining a weighted modification coefficient of each sub-band for the current frame frequency-domain signal by using the current frame modification coefficient and a relevant frame modification coefficient; and modifying the spectral envelope of each sub-band for the current frame frequency-domain signal by using the weighted modification coefficient.

摘要翻译： 提供了一种用于处理信号的方法和装置。 该方法包括：获得当前帧频域信号的每个子带的能量平均值; 根据每个子带的频谱包络和能量平均值，获取当前帧频域信号的每个子带的当前帧修改系数; 通过使用当前帧修正系数和相关帧修正系数，获得当前帧频域信号的每个子带的加权修正系数; 以及通过使用加权修正系数来修改当前帧频域信号的每个子带的频谱包络。

公开(公告)号：US20110216839A1

公开(公告)日：2011-09-08

申请号：US13111834

申请日：2011-05-19

申请人： Chen HU ,  Zexin LIU ,  Lei MIAO ,  Longyin CHEN ,  Qing ZHANG ,  Wei XIAO ,  Herve Marcel TADDEI

发明人： Chen HU ,  Zexin LIU ,  Lei MIAO ,  Longyin CHEN ,  Qing ZHANG ,  Wei XIAO ,  Herve Marcel TADDEI

IPC分类号： H04L27/00 ,  H04B14/04

CPC分类号： G10L21/00 ,  G10L19/24

摘要： A method, device and system for signal encoding and decoding are disclosed. The method includes: encoding a core layer signal to obtain a core layer signal code; selecting an enhancement sample point that requires enhancement layer signal encoding according to the core layer signal code and the number of bits that can be used by an enhancement layer; obtaining an enhancement layer signal code of the enhancement sample point; and outputting a bit stream, where the bit stream includes the core layer signal code and the enhancement layer signal code. In embodiments of the present invention, according to the number of bits that can be used by the enhancement layer, the enhancement sample point that requires enhancement layer signal encoding is selected; the enhancement layer signal of the selected enhancement sample point is encoded and decoded; when no sufficient bits are available for the enhancement layer, the enhancement quality of the core layer can be improved.

摘要翻译： 公开了用于信号编码和解码的方法，装置和系统。 该方法包括：编码核心层信号以获得核心层信号码; 选择需要根据核心层信号码的增强层信号编码和增强层可以使用的位数的增强采样点; 获得增强采样点的增强层信号码; 并输出比特流，其中比特流包括核心层信号码和增强层信号码。 在本发明的实施例中，根据增强层可以使用的比特数，选择需要增强层信号编码的增强采样点; 所选择的增强采样点的增强层信号被编码和解码; 当没有足够的比特可用于增强层时，可以提高核心层的增强质量。

公开(公告)号：US20110238427A1

公开(公告)日：2011-09-29

申请号：US13160115

申请日：2011-06-14

申请人： Longyin CHEN ,  Zexin LIU ,  Lei MIAO ,  Chen HU ,  Wei XIAO ,  Herve Marcel TADDEI ,  Qing ZHANG

发明人： Longyin CHEN ,  Zexin LIU ,  Lei MIAO ,  Chen HU ,  Wei XIAO ,  Herve Marcel TADDEI ,  Qing ZHANG

IPC分类号： G10L19/00

CPC分类号： G10L19/22 ,  G10L19/025

摘要： A signal classification processing method, a classification processing device, and an encoding system are provided. The signal classification processing method includes: obtaining a high band input signal; determining a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal; and determining an encoding mode corresponding to the signal type. The classification processing device includes: a receiving unit, configured to obtain a high band input signal; and a processing unit, configured to determine a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal and determine an encoding mode corresponding to the signal type. An encoding system is also provided. Therefore, type subdivision and processing are performed on the high band input signal, so as to facilitate encoding and decoding processing of the signal.

摘要翻译： 提供信号分类处理方法，分类处理装置和编码系统。 信号分类处理方法包括：获得高频带输入信号; 根据高频带输入信号的时域特性参数和/或频域特性参数确定所获得的高频带输入信号的信号类型; 以及确定与所述信号类型对应的编码模式。 分类处理装置包括：接收单元，被配置为获得高频带输入信号; 以及处理单元，被配置为根据所述高频带输入信号的时域特性参数和/或频域特性参数来确定所获得的高频带输入信号的信号类型，并且确定与所述信号类型对应的编码模式。 还提供了编码系统。 因此，对高频带输入信号进行类型细分处理，便于信号的编码和解码处理。

公开(公告)号：US20120022878A1

公开(公告)日：2012-01-26

申请号：US13248725

申请日：2011-09-29

申请人： Longyin CHEN ,  Lei MIAO ,  Chen HU ,  Zexin LIU ,  Qing ZHANG

发明人： Longyin CHEN ,  Lei MIAO ,  Chen HU ,  Zexin LIU ,  Qing ZHANG

IPC分类号： G10L19/00

CPC分类号： G10L21/0205 ,  G10L19/24 ,  G10L21/0364 ,  G10L21/038

摘要： In the field of audio encoding/decoding technologies, a signal de-noising method is provided. The method includes: selecting, according to a degree of inter-frame correlation of a frame where a spectral coefficient to be adjusted resides, at least two spectral coefficients having high correlation with the spectral coefficient to be adjusted; performing weighting on the at least two selected spectral coefficients and the spectral coefficient to be adjusted to acquire a predicted value of the spectral coefficient to be adjusted; and adjusting a spectrum of a decoded signal by using the acquired predicted value, and outputting the adjusted decoded signal. A signal de-noising apparatus corresponding to the signal de-noising method and an audio decoding system using the signal de-noising apparatus are also provided.

摘要翻译： 在音频编码/解码技术领域，提供了信号去噪方法。 该方法包括：根据要调整的频谱系数的帧的帧间相关度，选择与要调整的频谱系数高度相关的至少两个频谱系数; 对所述至少两个所选频谱系数执行加权，以及对所述频谱系数进行调整，以获取要调整的频谱系数的预测值; 以及通过使用获取的预测值来调整解码信号的频谱，并输出调整后的解码信号。 还提供了与信号去噪方法相对应的信号去噪装置和使用信号去噪装置的音频解码系统。