公开(公告)号：US20080162127A1

公开(公告)日：2008-07-03

申请号：US11616351

申请日：2006-12-27

申请人： Laura Laaksonen ,  Jussi Virolainen ,  Paivi Valve

发明人： Laura Laaksonen ,  Jussi Virolainen ,  Paivi Valve

IPC分类号： G10L15/08

CPC分类号： H04M3/56 ,  H04M3/568 ,  H04M3/569 ,  H04M2203/2094 ,  H04M2242/30

摘要： A network entity, method and computer program product are provided for effectuating a conference session. The method may include receiving a plurality of signals representative of voice communication of the participants. In this regard, the signals may be received from a plurality of terminals of a respective plurality of participants at one of the locations, each of at least some of the terminals otherwise being configured for voice communication independent of at least some of the other terminals. The method of this aspect also includes classifying speech activity of the conference session according to a speech pause, or one or more actively-speaking participants, during the conference session. The signals of the respective participants may then be mixed into a at least one mixed signal for output to one or more other participants at one or more other locations, the signals being mixed based upon classification of the speech activity.

摘要翻译： 提供网络实体，方法和计算机程序产品用于实现会议会话。 该方法可以包括接收代表参与者的语音通信的多个信号。 在这点上，信号可以从一个位置处的相应多个参与者的多个终端接收，至少一些终端中的每一个终端被配置为独立于至少一些其他终端的语音通信。 该方面的方法还包括在会议会话期间根据语音暂停或一个或多个主动参与的参与者对会议的语音活动进行分类。 然后可以将各参与者的信号混合成至少一个混合信号，以输出到一个或多个其他位置处的一个或多个其他参与者，该信号基于语音活动的分类进行混合。

公开(公告)号：US20050267741A1

公开(公告)日：2005-12-01

申请号：US10853820

申请日：2004-05-25

申请人： Laura Laaksonen ,  Paivi Valve

发明人： Laura Laaksonen ,  Paivi Valve

IPC分类号： G10L19/06

CPC分类号： G10L21/038

摘要： A method, device, system, and computer program product expand narrowband speech signals to wideband speech signals. The method includes determining signal type information from a signal, obtaining characteristics for forming an upper band signal using the determined signal type information, determining signal noise information, using the determined signal noise information to modify the obtained characteristics for forming the upper band signal, and forming the upper band signal using the modified characteristics.

摘要翻译： 方法，设备，系统和计算机程序产品将窄带语音信号扩展到宽带语音信号。 该方法包括从信号中确定信号类型信息，使用所确定的信号类型信息获得用于形成高频带信号的特性，使用所确定的信号噪声信息来确定信号噪声信息，以修改所获得的用于形成高频带信号的特性，以及 使用改进的特征形成上限信号。

公开(公告)号：US08712768B2

公开(公告)日：2014-04-29

申请号：US10853820

申请日：2004-05-25

申请人： Laura Laaksonen ,  Päivi Valve

发明人： Laura Laaksonen ,  Päivi Valve

IPC分类号： G10L21/02

CPC分类号： G10L21/038

摘要： A method, device, system, and computer program product expand narrowband speech signals to wideband speech signals. The method includes determining signal type information from a signal, obtaining characteristics for forming an upper band signal using the determined signal type information, determining signal noise information, using the determined signal noise information to modify the obtained characteristics for forming the upper band signal, and forming the upper band signal using the modified characteristics.

摘要翻译： 方法，设备，系统和计算机程序产品将窄带语音信号扩展到宽带语音信号。 该方法包括从信号中确定信号类型信息，使用所确定的信号类型信息获得用于形成高频带信号的特性，使用所确定的信号噪声信息来确定信号噪声信息，以修改所获得的用于形成高频带信号的特性，以及 使用改进的特征形成上限信号。

公开(公告)号：US20050267745A1

公开(公告)日：2005-12-01

申请号：US10853819

申请日：2004-05-25

申请人： Laura Laaksonen ,  Paivi Valve

发明人： Laura Laaksonen ,  Paivi Valve

IPC分类号： G10L11/02 ,  G10L21/02

CPC分类号： G10L25/78

摘要： A method, device, system, and computer program product calculate a gradient index as a sum of magnitudes of gradients of speech signals from a received frame at each change of direction; and provide an indication that the frame contains babble noise if the gradient index, energy information, and background noise level exceed pre-determined thresholds or a voice activity detector algorithm and sound level indicate babble noise.

摘要翻译： 一种方法，装置，系统和计算机程序产品将梯度指数计算为在每个方向改变时来自接收帧的语音信号的梯度的幅度之和; 并且如果梯度指数，能量信息和背景噪声水平超过预定阈值或语音活动检测器算法和声音电平指示混音噪声，则提供该帧包含混音噪声的指示。

公开(公告)号：US08788265B2

公开(公告)日：2014-07-22

申请号：US10853819

申请日：2004-05-25

申请人： Laura Laaksonen ,  Päivi Valve

发明人： Laura Laaksonen ,  Päivi Valve

IPC分类号： G10L21/02 ,  G10L19/00

CPC分类号： G10L25/78

摘要： A method, device, system, and computer program product calculate a gradient index as a sum of magnitudes of gradients of speech signals from a received frame at each change of direction; and provide an indication that the frame contains babble noise if the gradient index, energy information, and background noise level exceed pre-determined thresholds or a voice activity detector algorithm and sound level indicate babble noise.

摘要翻译： 一种方法，装置，系统和计算机程序产品将梯度指数计算为在每个方向改变时来自接收帧的语音信号的梯度的幅度之和; 并且如果梯度指数，能量信息和背景噪声水平超过预定阈值或语音活动检测器算法和声音电平指示混音噪声，则提供该帧包含混音噪声的指示。

公开(公告)号：US20140019125A1

公开(公告)日：2014-01-16

申请号：US14006154

申请日：2011-03-31

申请人： Laura Laaksonen ,  Hannu Juhani Pulakka ,  Ulpu Remes ,  Paavo Ilmari Alku ,  Kalle Palomaki

发明人： Laura Laaksonen ,  Hannu Juhani Pulakka ,  Ulpu Remes ,  Paavo Ilmari Alku ,  Kalle Palomaki

IPC分类号： G10L19/02

CPC分类号： G10L19/02 ,  G10L21/038 ,  G10L25/93

摘要： Apparatus comprising: an input amplitude and phase calculator configured to determine at least one amplitude value and phase value dependent on a first audio signal; a synthesis amplitude calculator configured to synthesize a further amplitude value associated with each amplitude value dependent on a determined harmonic shaping function; a synthesis phase calculator configured to synthesize a further phase value associated with each phase value; and a signal synthesizer configured to generate a bandwidth extension signal dependent the further amplitude value and the further phase values.

摘要翻译： 一种装置，包括：输入幅度和相位计算器，被配置为根据第一音频信号确定至少一个振幅值和相位值; 合成幅度计算器，被配置为根据确定的谐波整形函数合成与每个振幅值相关联的另外的振幅值; 合成相位计算器，被配置为合成与每个相位值相关联的另外的相位值; 以及信号合成器，被配置为根据另外的幅度值和另外的相位值产生带宽扩展信号。

公开(公告)号：US20080159507A1

公开(公告)日：2008-07-03

申请号：US11616638

申请日：2006-12-27

申请人： Jussi Virolainen ,  Laura Laaksonen ,  Ali Ahmaniemi ,  Paivi Valve

发明人： Jussi Virolainen ,  Laura Laaksonen ,  Ali Ahmaniemi ,  Paivi Valve

IPC分类号： H04M3/42

CPC分类号： H04M3/56 ,  H04M1/7253 ,  H04M3/562 ,  H04M3/564 ,  H04M3/568 ,  H04M2250/06 ,  H04M2250/62 ,  H04W4/00 ,  H04W8/26 ,  H04W48/08

摘要： Provided are multichannel architectures, systems, methods, and computer program products for distributed teleconferencing using one or more master devices and/or a centralized conferencing switch. Multichannels enhance functionality of a master device in distributed teleconferencing and allow for compatibility with 3D capable teleconferencing. Multichannel distributed teleconferencing involves multichannel, monophonic, and/or a fixed number of uplink and downlink channels. A multichannel distributed teleconferencing system may perform active talker detection of near-end participants and communicate an ID signal on an uplink channel identifying the active near-end participants. A multichannel distributed teleconferencing system may also receive an ID signal on a downlink channel identifying the active far-end participants. A multichannel distributed teleconferencing system may perform various uplink and downlink processing. Uplink processing may involve multimixing and spatialization. Multimixing may be used to separate speech signals of near-end participants. Spatialization, also used in downlink processing, introduces spatial separation of active participants.

摘要翻译： 提供了使用一个或多个主设备和/或集中式会议交换机的分布式电话会议的多通道架构，系统，方法和计算机程序产品。 多通道增强分布式电话会议中主设备的功能，并允许与3D功能的电话会议兼容。 多通道分布式电话会议涉及多通道，单声道和/或固定数量的上行链路和下行链路信道。 多通道分布式电话会议系统可以执行近端参与者的主动讲话者检测，并且在标识活跃的近端参与者的上行链路信道上传送ID信号。 多通道分布式电话会议系统还可以在识别活动的远端参与者的下行链路信道上接收ID信号。 多通道分布式电话会议系统可以执行各种上行链路和下行链路处理。 上行链路处理可能涉及多重混合和空间化。 多重混合可用于分离近端参与者的语音信号。 也用于下行处理的空间化引入了主动参与者的空间分离。

公开(公告)号：US20130144614A1

公开(公告)日：2013-06-06

申请号：US13700093

申请日：2010-05-25

申请人： Ville Mikael Myllyla ,  Laura Laaksonen ,  Hannu Juhani Pulakka ,  Paavo Ilmari Alku

发明人： Ville Mikael Myllyla ,  Laura Laaksonen ,  Hannu Juhani Pulakka ,  Paavo Ilmari Alku

IPC分类号： H03G3/20 ,  G10L25/78

CPC分类号： H03G3/20 ,  G10L19/0208 ,  G10L19/26 ,  G10L21/038 ,  G10L25/78

摘要： An apparatus for extending the bandwidth of an audio signal, the apparatus being configured to: generate an excitation signal from an audio signal, wherein in the audio signal comprises a plurality of frequency components; extract a feature vector from the audio signal, wherein the feature vector comprises at least one frequency domain component feature and at least one time domain component feature; determine at least one spectral shape parameter from the feature vector, wherein the at least one spectral shape parameter corresponds to a sub band signal comprising frequency components which belong to a further plurality of frequency components; and generate the sub band signal by filtering the excitation signal through a filter bank and weighting the filtered excitation signal with the at least one spectral shape parameter.

摘要翻译： 一种用于扩展音频信号的带宽的装置，该装置被配置为：从音频信号产生激励信号，其中在音频信号中包括多个频率分量; 从所述音频信号中提取特征向量，其中所述特征向量包括至少一个频域分量特征和至少一个时域分量特征; 从所述特征向量确定至少一个光谱形状参数，其中所述至少一个光谱形状参数对应于包括属于另外多个频率分量的频率分量的子带信号; 并通过滤波器组对激励信号进行滤波并且通过至少一个频谱形状参数对滤波的激励信号进行加权来产生子带信号。

公开(公告)号：US08218460B2

公开(公告)日：2012-07-10

申请号：US11616351

申请日：2006-12-27

申请人： Laura Laaksonen ,  Jussi Virolainen ,  Paivi Valve

发明人： Laura Laaksonen ,  Jussi Virolainen ,  Paivi Valve

IPC分类号： H04L12/16 ,  H04Q11/00

CPC分类号： H04M3/56 ,  H04M3/568 ,  H04M3/569 ,  H04M2203/2094 ,  H04M2242/30

摘要： A network entity, method and computer program product are provided for effectuating a conference session. The method may include receiving a plurality of signals representative of voice communication of the participants. In this regard, the signals may be received from a plurality of terminals of a respective plurality of participants at one of the locations, each of at least some of the terminals otherwise being configured for voice communication independent of at least some of the other terminals. The method of this aspect also includes classifying speech activity of the conference session according to a speech pause, or one or more actively-speaking participants, during the conference session. The signals of the respective participants may then be mixed into a at least one mixed signal for output to one or more other participants at one or more other locations, the signals being mixed based upon classification of the speech activity.

摘要翻译： 提供网络实体，方法和计算机程序产品用于实现会议会话。 该方法可以包括接收代表参与者的语音通信的多个信号。 在这点上，信号可以从一个位置处的相应多个参与者的多个终端接收，至少一些终端中的每一个终端被配置为独立于至少一些其他终端的语音通信。 该方面的方法还包括在会议会话期间根据语音暂停或一个或多个主动参与的参与者对会议的语音活动进行分类。 然后可以将各参与者的信号混合成至少一个混合信号，以输出到一个或多个其他位置处的一个或多个其他参与者，该信号基于语音活动的分类进行混合。

公开(公告)号：US20080004866A1

公开(公告)日：2008-01-03

申请号：US11427856

申请日：2006-06-30

申请人： Jussi Virolainen ,  Laura Laaksonen

发明人： Jussi Virolainen ,  Laura Laaksonen

IPC分类号： G10L19/14

CPC分类号： G10L21/038 ,  G10L19/008

摘要： Techniques for applying artificial bandwidth expansion to a multichannel signal are described. Aspects of a system for applying artificial bandwidth expansion to a multichannel signal include an estimation component for receiving a multichannel signal and estimating delay and energy level differences for each channel of the multichannel signal. An artificial bandwidth expansion component artificially expands the bandwidth of each of the channels of the multichannel signal separately. Each one of a plurality of adjustment components are configured to modify a different one of the artificial bandwidth expanded channels of the multichannel signal based upon the estimated delay and energy level differences. The multichannel signal may be a binaural speech signal.

摘要翻译： 描述了将人造带宽扩展应用于多信道信号的技术。 用于将人造带宽扩展应用于多信道信号的系统的方面包括用于接收多信道信号并估计多信道信号的每个信道的延迟和能级差的估计组件。 人造带宽扩展组件分别人工地扩展多信道信号的每个信道的带宽。 多个调整组件中的每一个被配置为基于所估计的延迟和能量水平差来修改多通道信号中的不同的一个人造带宽扩展通道。 多声道信号可以是双耳语音信号。