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1. 发明申请

WO2006116024A2 SYSTEMS, METHODS, AND APPARATUS FOR GAIN FACTOR ATTENUATION 审中-公开
标题翻译：系数，方法和设备增益因子衰减
公开(公告)号：WO2006116024A2
公开(公告)日：2006-11-02
申请号：PCT/US2006/014992
申请日：2006-04-21
申请人： QUALCOMM INCORPORATED , VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
发明人： VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
IPC分类号： G10L19/04
CPC分类号： G10L19/04 , G10L19/0208 , G10L21/038
摘要： A method of signal processing according to one embodiment includes calculating an envelope of a first signal that is based on a low-frequency portion of a speech signal, calculating an envelope of a second signal that is based on a high-frequency portion of the speech signal, and calculating a plurality of gain factor values according to a time-varying relation between the envelopes of the first and second signal. The method includes attenuating, based on a variation over time of a relation between the envelopes of the first and second signals, at least one of the plurality of gain factor values. In one example, the variation over time of a relation between the envelopes is indicated by at least one distance among the plurality of gain factor values.
摘要翻译：根据一个实施例的信号处理方法包括：计算基于语音信号的低频部分的第一信号的包络，计算基于语音的高频部分的第二信号的包络信号，并且根据第一和第二信号的包络之间的时变关系来计算多个增益因子值。该方法包括基于第一和第二信号的包络之间的关系随时间的变化而衰减多个增益因子值中的至少一个。在一个示例中，信封之间的关系随时间的变化由多个增益因子值中的至少一个距离指示。

2. 发明申请

WO2006107838A1 SYSTEMS, METHODS, AND APPARATUS FOR HIGHBAND TIME WARPING 审中-公开
标题翻译：系统，方法和设备，用于高速时间加热
公开(公告)号：WO2006107838A1
公开(公告)日：2006-10-12
申请号：PCT/US2006/012232
申请日：2006-04-03
申请人： QUALCOMM Incorporated , VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
发明人： VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
IPC分类号： G10L21/04 , G10L21/02
CPC分类号： G10L21/0208 , G10L19/0208 , G10L19/038 , G10L19/24 , G10L21/0232 , G10L21/038
摘要： In one embodiment, a method of signal processing includes encoding a low-frequency portion of a speech signal into at least an encoded narrowband excitation signal and a plurality of narrowband filter parameters; and generating a highband excitation signal based on a narrowband excitation signal. The narrowband excitation signal is based on the encoded narrowband excitation signal. The method also includes encoding a high-frequency portion of the speech signal into at least a plurality of highband filter parameters according to at least the highband excitation signal. The encoded narrowband excitation signal includes a time warping, and the method includes applying a time shift to the high-frequency portion based on information related to the time warping.
摘要翻译：在一个实施例中，一种信号处理方法包括将语音信号的低频部分编码成至少编码的窄带激励信号和多个窄带滤波器参数; 以及基于窄带激励信号产生高频激励信号。窄带激励信号基于编码的窄带激励信号。该方法还包括根据至少高频激励信号将语音信号的高频部分编码成至少多个高频带滤波器参数。编码窄带激励信号包括时间扭曲，该方法包括：基于与时间扭曲有关的信息，将时移应用于高频部分。

3. 发明申请

WO2006107839A2 SYSTEMS, METHODS, AND APPARATUS FOR ANTI-SPARSENESS FILTERING 审中-公开
标题翻译：系统，方法和装置用于防止过滤
公开(公告)号：WO2006107839A2
公开(公告)日：2006-10-12
申请号：PCT/US2006/012233
申请日：2006-04-03
申请人： QUALCOMM INCORPORATED , VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
发明人： VOS, Koen Bernard , KANDHADAI, Ananthapadmanabhan A.
IPC分类号： G10L21/02
CPC分类号： G10L21/0208 , G10L19/0208 , G10L19/038 , G10L19/24 , G10L21/0232 , G10L21/038
摘要： In one embodiment, a method of generating a highband excitation signal includes generating a spectrally extended signal by extending the spectrum of a signal that is based on an encoded lowband excitation signal; and performing anti-sparseness filtering of a signal that is based on the encoded lowband excitation signal. In this method, the highband excitation signal is based on the spectrally extended signal, and the highband excitation signal is based on a result of the anti-sparseness filtering.
摘要翻译：在一个实施例中，产生高频激励信号的方法包括通过扩展基于编码的低频带激励信号的信号的频谱来产生频谱扩展信号; 并对基于编码的低频带激励信号的信号执行反稀疏滤波。在这种方法中，高频激励信号基于频谱扩展信号，高频激励信号是基于反稀疏滤波的结果。

4. 发明申请

WO2010079169A1 PYRAMID VECTOR AUDIO CODING 审中-公开
标题翻译： PYRAMID矢量音频编码
公开(公告)号：WO2010079169A1
公开(公告)日：2010-07-15
申请号：PCT/EP2010/050059
申请日：2010-01-05
申请人： SKYPE LIMITED , VOS, Koen Bernard
发明人： VOS, Koen Bernard
IPC分类号： G10L19/02
CPC分类号： G10L19/038
摘要： A system, and method for encoding one or more parent blocks of values, the number of values being the length of each block. The method comprises for each parent block: (a) determining a first sum of values in the parent block; (b) splitting the parent block into smaller subblocks; (c) for at least one of the subblocks, determining a second sum of the values in the subblock, selecting a likelihood table from the plurality of likelihood tables based on said first sum of values in the parent block and encoding the second sum using the likelihood table; (d) designating each subblock a parent block; (e) carrying out steps (a), (b), (c) and (d) until at least one parent block reaches a predetermined condition.
摘要翻译：用于编码一个或多个父值块的系统和方法，值的数量是每个块的长度。该方法包括对于每个父块：（a）确定父块中的值的第一和; （b）将父块分割成更小的子块; （c）对于所述子块中的至少一个，确定所述子块中的值的第二和，基于所述父块中的所述第一和值，从所述多个似然表中选择似然表，并且使用可能性表; （d）指定每个子块为父块; （e）执行步骤（a），（b），（c）和（d），直到至少一个母体块达到预定条件。

5. 发明申请

WO2010079164A1 SPEECH CODING 审中-公开
标题翻译：语音编码
公开(公告)号：WO2010079164A1
公开(公告)日：2010-07-15
申请号：PCT/EP2010/050052
申请日：2010-01-05
申请人： SKYPE LIMITED , VOS, Koen Bernard
发明人： VOS, Koen Bernard
IPC分类号： G10L19/06 , G10L19/08
CPC分类号： G10L19/09 , G10L19/07 , G10L19/12
摘要： A method, system and program for encoding and decoding speech according to a source-filter model whereby speech is modelled to comprise a source signal filtered by a time-varying filter. The method comprises: receiving a speech signal; and from the speech signal, deriving a spectral envelope signal representing the modelled filter and a remaining signal representing the modelled source. At intervals during the encoding, the method further comprises determining a period between portions of the remaining signal having a degree of repetition and determining a correlation between said portions based on that period, thus producing a respective vector of the correlation for each interval. Once every number of said intervals, the method further comprises selecting a codebook from a plurality of codebooks for quantizing the vectors, quantizing the vectors of that number of intervals according to the selected codebook, and transmitting the quantized vectors along with an indication of the selected codebook.
摘要翻译：一种用于根据源滤波器模型对语音进行编码和解码的方法，系统和程序，由此语音被建模为包括由时变滤波器滤波的源信号。该方法包括：接收语音信号; 并从语音信号中得出表示建模滤波器的频谱包络信号和表示建模源的剩余信号。在编码期间，该方法还包括确定具有重复程度的剩余信号的部分之间的周期，并且基于该周期确定所述部分之间的相关性，从而产生每个间隔的相关矢量。一旦每个所述间隔的数量，该方法还包括从多个码本中选择用于量化矢量的码本，根据所选择的码本量化该数量的间隔的矢量，以及发送量化矢量以及所选择的码本的指示码本。

6. 发明申请

WO2010079168A1 FILTERING SPEECH 审中-公开
标题翻译：过滤语音
公开(公告)号：WO2010079168A1
公开(公告)日：2010-07-15
申请号：PCT/EP2010/050058
申请日：2010-01-05
申请人： SKYPE LIMITED , VOS, Koen Bernard , STROMMER, Stefan
发明人： VOS, Koen Bernard , STROMMER, Stefan
IPC分类号： G10L21/02
CPC分类号： G10L21/02
摘要： A method and filter for filtering a speech signal for speech encoding in a communications network. The method comprises: determining a cut off frequency for a filter, wherein a component of the speech signal in a frequency range less than the cut off frequency is to be attenuated by the filter; receiving the speech signal at the filter; determining at least one parameter of the received speech signal, the at least one parameter providing an indication of the energy of the component of the received speech signal that is to be attenuated; and adjusting the cut off frequency in dependence on the at least one parameter, thereby adjusting the frequency range to be attenuated; wherein the at least one parameter comprises a pitch frequency of the speech signal, and wherein the cut off frequency is adjusted to be no greater than the determined pitch frequency.
摘要翻译：一种用于在通信网络中对用于语音编码的语音信号进行滤波的方法和滤波器。该方法包括：确定滤波器的截止频率，其中在小于截止频率的频率范围内的语音信号的分量将被滤波器衰减; 在滤波器处接收语音信号; 确定所接收的语音信号的至少一个参数，所述至少一个参数提供要被衰减的所接收的语音信号的分量的能量的指示; 以及根据所述至少一个参数来调整所述截止频率，由此调整要衰减的频率范围; 其中所述至少一个参数包括所述语音信号的音调频率，并且其中所述截止频率被调整为不大于所确定的音调频率。

7. 发明申请

WO2010079167A1 SPEECH CODING 审中-公开
标题翻译：语音编码
公开(公告)号：WO2010079167A1
公开(公告)日：2010-07-15
申请号：PCT/EP2010/050057
申请日：2010-01-05
申请人： SKYPE LIMITED , VOS, Koen Bernard , JENSEN, Soren Skak
发明人： VOS, Koen Bernard , JENSEN, Soren Skak
IPC分类号： G10L19/12
CPC分类号： G10L19/12 , G10L19/09
摘要： A method, system and computer program for encoding speech according to a source-filter model. The method comprises deriving a spectral envelope signal representative of a modelled filter and a first remaining signal representative of a modelled source signal, and deriving a second remaining signal from the first remaining signal by, at intervals during the encoding: exploiting a correlation between approximately periodic portions in the first remaining signal to generate a predicted version of a later portion from a stored version of an earlier portion, and using the predicted version of the later portion to remove an effect of said periodicity from the first remaining signal. The method further comprises, once every number of intervals, transforming the stored version of the earlier portion of the first remaining signal prior to generating the predicted version of the respective later portion.
摘要翻译：根据源滤波器模型对语音进行编码的方法，系统和计算机程序。该方法包括：导出表示建模滤波器的频谱包络信号和表示建模源信号的第一剩余信号，并且通过在编码期间的间隔导出来自第一剩余信号的第二剩余信号：利用近似周期性第一剩余信号中的一些部分，以从先前部分的存储版本产生后一部分的预测版本，以及使用后一部分的预测版本从第一剩余信号中去除所述周期性的影响。该方法进一步包括在每个数量的间隔一次之后，在产生相应后期部分的预测版本之前，变换第一个剩余信号的较早部分的存储版本。

8. 发明申请

WO2010066903A1 CONTROLLING PACKET TRANSMISSION USING BANDWIDTH ESTIMATION 审中-公开
标题翻译：使用带宽估计控制分组传输
公开(公告)号：WO2010066903A1
公开(公告)日：2010-06-17
申请号：PCT/EP2009/067002
申请日：2009-12-11
申请人： SKYPE LIMITED , ANDERSEN, Soren Vang , RODBRO, Christoffer Asgaard , VOS, Koen Bernard
发明人： ANDERSEN, Soren Vang , RODBRO, Christoffer Asgaard , VOS, Koen Bernard
IPC分类号： H04L12/56 , H04L12/26
CPC分类号： H04L47/10 , H04L43/0852 , H04L43/0876 , H04L43/106
摘要： A method, program and apparatus for estimating a bandwidth of a channel from a transmitter (2) to a receiver (i). The method comprises: receiving a packet stream at the receiver (i) from the transmitter (2); receiving from the transmitter an indication of data transmitted from the transmitter to one or more other recipients than said receiver between packets of said packet stream (CT); and determining at the receiver (i), using said indication, an estimate of the bandwidth of said channel. The estimate may enable transmission of packets from the transmitter to be controlled.
摘要翻译：一种用于估计从发射机（2）到接收机（i）的信道的带宽的方法，程序和装置。该方法包括：在接收机（i）从发射机（2）接收分组流; 从所述发射机接收在所述分组流（CT）的分组之间从所述发射机发送到一个或多个其他接收者的数据的指示; 以及使用所述指示在所述接收机（i）处确定所述信道的带宽的估计。该估计可以使来自发射机的分组的传输能够被控制。

9. 发明申请

WO2010079163A1 SPEECH CODING 审中-公开
标题翻译：语音编码
公开(公告)号：WO2010079163A1
公开(公告)日：2010-07-15
申请号：PCT/EP2010/050051
申请日：2010-01-05
申请人： SKYPE LIMITED , VOS, Koen Bernard
发明人： VOS, Koen Bernard
IPC分类号： G10L19/08 , G10L19/04
CPC分类号： G10L19/09 , G10L19/04
摘要： A method, program and apparatus for encoding speech. The method comprises: receiving a signal representative of speech to be encoded; at each of a plurality of intervals during the encoding, determining a pitch lag between portions of the signal having a degree of repetition; selecting for a set of said intervals a pitch lag vector from a pitch lag codebook of such vectors, each pitch lag vector comprising a set of offsets corresponding to the offset between the pitch lag determined for each said interval and an average pitch lag for said set of intervals, and transmitting an indication of the selected vector and said average over a transmission medium as part of the encoded signal representative of said speech.
摘要翻译：一种用于编码语音的方法，程序和装置。该方法包括：接收代表要编码的语音的信号; 在编码期间的多个间隔的每一个处，确定具有重复程度的信号的部分之间的音调滞后; 从这些矢量的音调滞后码本中选择一组所述间隔的音调滞后矢量，每个音调滞后矢量包括对应于针对每个所述间隔确定的音调滞后与所述组的平均音调滞后之间的偏移量的一组偏移量并且通过传输介质发送所选择的向量和所述平均值的指示，作为代表所述语音的编码信号的一部分。

10. 发明申请

WO2010066861A2 REGENERATION OF WIDEBAND SPEECH 审中-公开
标题翻译：更新宽带语音
公开(公告)号：WO2010066861A2
公开(公告)日：2010-06-17
申请号：PCT/EP2009/066876
申请日：2009-12-10
申请人： SKYPE LIMITED , NILSSON, Mattias , VANG ANDERSEN, Soren , VOS, Koen Bernard
发明人： NILSSON, Mattias , VANG ANDERSEN, Soren , VOS, Koen Bernard
IPC分类号： G10L21/02
CPC分类号： G10L21/038
摘要： A method of regenerating wideband speech from narrowband speech, the method comprising: receiving samples of a narrowband speech signal in a first range of frequencies; modulating received samples of the narrowband speech signal with a modulation signal having a modulating frequency adapted to upshift each frequency in the first range of frequencies by an amount determined by the modulating frequency wherein the modulating frequency is selected to translate into a target band a selected frequency band within the first range of signals; filtering the modulated samples using a target band filter to form a regenerated speech signal in the target band; and combining the narrow band speech signal with the regenerated speech signal in the target band to regenerate a wideband speech signal, the method comprising the step of controlling the modulated samples to lie in a second range of frequencies identified by determining a signal characteristic of frequencies in the first range of frequencies.
摘要翻译：一种从窄带语音再生宽带语音的方法，该方法包括：接收第一频率范围内的窄带语音信号的样本; 用具有调制频率的调制信号调制接收到的窄带语音信号样本，该调制频率适于将第一频率范围中的每个频率升频由调制频率确定的量，其中选择调制频率以将目标频带转换为选定频率在第一信号范围内; 使用目标频带滤波器对经调制的采样进行滤波以在目标频带中形成再生语音信号; 以及将窄带语音信号与目标频带中的再生语音信号组合以再生宽带语音信号，该方法包括以下步骤：将调制样本控制在通过确定频率的信号特征的第二频率范围内第一频率范围。

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