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1. 发明申请

WO2010066861A3 REGENERATION OF WIDEBAND SPEECH 审中-公开
标题翻译：更新宽带语音
公开(公告)号：WO2010066861A3
公开(公告)日：2010-08-05
申请号：PCT/EP2009066876
申请日：2009-12-10
申请人： SKYPE LTD , 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 , G10L21/038
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：在第一频率范围内接收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个频率范围。

2. 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。

3. 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。

4. 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。

5. 发明申请

WO2006107833A1 METHOD AND APPARATUS FOR VECTOR QUANTIZING OF A SPECTRAL ENVELOPE REPRESENTATION 审中-公开
标题翻译：用于矢量量化的光谱包络表示的方法和装置
公开(公告)号：WO2006107833A1
公开(公告)日：2006-10-12
申请号：PCT/US2006/012227
申请日：2006-04-03
申请人： QUALCOMM INCORPORATED , VOS, Koen, Bernard
发明人： VOS, Koen, Bernard
IPC分类号： G10L19/06
CPC分类号： G10L21/0208 , G10L19/0208 , G10L19/038 , G10L19/24 , G10L21/0232 , G10L21/038
摘要： A quantizer according to an embodiment is configured to quantize a smoothed value of an input value (e.g., a vector of line spectral frequencies) to produce a corresponding output value, where the smoothed value is based on a scale factor and a quantization error of a previous output value.
摘要翻译：根据实施例的量化器被配置为量化输入值（例如，线谱频率的矢量）的平滑值以产生相应的输出值，其中平滑值基于比例因子和量化误差以前的输出值。

6. 发明申请

WO2011018362A1 CONTROLLING MULTI-PARTY COMMUNICATIONS 审中-公开
标题翻译：控制多方通信
公开(公告)号：WO2011018362A1
公开(公告)日：2011-02-17
申请号：PCT/EP2010/061107
申请日：2010-07-30
申请人： SKYPE LIMITED , VOS, Koen, Bernard , SPITTKA, Julian , ASTROM, Henrik , SORENSEN, Karsten, Vandborg , JENSEN, Soren, Skak
发明人： VOS, Koen, Bernard , SPITTKA, Julian , ASTROM, Henrik , SORENSEN, Karsten, Vandborg , JENSEN, Soren, Skak
IPC分类号： H04M3/56 , G10L11/02
CPC分类号： G10L25/78 , G10L19/012 , H04M3/568 , H04M7/006 , H04M2201/18 , H04M2250/62
摘要： A first user terminal, host terminal, method and program. The first terminal comprises: a transceiver for communicating with a plurality of other user terminals over a communication network; and communications processing apparatus, coupled to the transceiver, and arranged to participate in a call with a selected number of the other user terminals via the transceiver and communication network, the call including transmission of a voice signal from the first user terminal. The communications processing apparatus is operable in a mode whereby it temporarily discontinues transmission of the voice signal in response to detecting less than a predetermined level of activity on said voice signal, and the communications processing apparatus is further configured to selectively enable that mode in dependence on the selected number of other user terminals in the call.
摘要翻译：第一个用户终端，主机终端，方法和程序。第一终端包括：收发器，用于通过通信网络与多个其他用户终端进行通信; 以及通信处理装置，其耦合到所述收发器，并且被布置成经由所述收发器和通信网络参与与选定数量的其他用户终端的呼叫，所述呼叫包括来自所述第一用户终端的语音信号的传输。通信处理装置可以以这样一种模式操作，由此响应于检测到小于所述语音信号的预定活动水平而暂时停止语音信号的发送，并且通信处理装置还被配置为根据呼叫中所选择的其他用户终端数。

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

WO2006107836A1 METHOD AND APPARATUS FOR SPLIT-BAND ENCODING OF SPEECH SIGNALS 审中-公开
标题翻译：语音信号分离编码的方法与装置
公开(公告)号：WO2006107836A1
公开(公告)日：2006-10-12
申请号：PCT/US2006/012230
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 , G10L19/02
CPC分类号： G10L21/0208 , G10L19/0208 , G10L19/038 , G10L19/24 , G10L21/0232 , G10L21/038
摘要： A wideband speech encoder according to one embodiment includes a filter bank having a lowband processing path and a highband processing path. The processing paths have overlapping frequency responses. A first encoder is configured to encode a speech signal produced by the lowband processing path according to a first coding methodology. A second encoder is configured to encode a speech signal produced by the highband processing path according to a second coding methodology that is different than the first coding methodology.
摘要翻译：根据一个实施例的宽带语音编码器包括具有低带处理路径和高带处理路径的滤波器组。处理路径具有重叠的频率响应。第一编码器被配置为根据第一编码方法对由低带处理路径产生的语音信号进行编码。第二编码器被配置为根据与第一编码方法不同的第二编码方法对由高带处理路径产生的语音信号进行编码。

10. 发明申请

WO2010066861A4 REGENERATION OF WIDEBAND SPEECH 审中-公开
标题翻译：宽带演讲再现
公开(公告)号：WO2010066861A4
公开(公告)日：2010-11-11
申请号：PCT/EP2009066876
申请日：2009-12-10
申请人： SKYPE LTD , 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 , G10L21/038
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，所述方法包括：在第一频率范围内接收窄带语音信号的样本; 利用具有调制频率的调制信号来调制所述窄带语音信号的接收样本，所述调制信号具有调制频率，所述调制频率适于将所述第一频率范围中的每个频率升高由调制频率确定的量，其中所述调制频率被选择为将所选频率转换成目标频带在第一范围内的信号; 使用目标频带滤波器对调制样本进行滤波，以在目标频带中形成再生语音信号; 以及将所述窄带语音信号与所述目标频带中的所述再生语音信号组合以再生宽带语音信号，所述方法包括以下步骤：将所述调制样本控制在通过确定频率的信号特性来识别的频率的第二范围内第一个频率范围。

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