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41.发明授权Method for headphone reproduction, a headphone reproduction system, a computer program product 有权用于耳机再现的方法，耳机再现系统，计算机程序产品公开(公告)号：US09191763B2
公开(公告)日：2015-11-17
申请号：US12680584
申请日：2008-10-01
IPC分类号： H04S5/00
CPC分类号： H04S5/005 , H04S2400/05
摘要： A method for headphone reproduction of at least two input channel signals is proposed. Said method comprises for each pair of input channel signals from said at least two input channel signals the following steps. First, a common component, an estimated desired position corresponding to said common component, and two residual components corresponding to two input channel signals in said pair of input channel signals are determined. Said determining is being based on said pair of said input channel signals. Each of said residual components is derived from its corresponding input channel signal by subtracting a contribution of the common component. Said contribution is being related to the estimated desired position of the common component. Second, a main virtual source comprising said common component at the estimated desired position and two further virtual sources each comprising a respective one of said residual components at respective predetermined positions are synthesized.
摘要翻译： 提出了一种用于耳机再现至少两个输入通道信号的方法。 所述方法包括对于来自所述至少两个输入通道信号的每对输入通道信号，以下步骤。 首先，确定公共分量，对应于所述公共分量的估计期望位置和对应于所述输入通道信号对中的两个输入通道信号的两个残差分量。 所述确定是基于所述一对所述输入通道信号。 通过减去公共部件的贡献，从其相应的输入通道信号导出每个所述残余分量。 所述贡献与公共部件的估计期望位置有关。 第二，合成了在所述估计的期望位置处包括所述公共分量的主虚拟源和在各个预定位置处包括相应的一个所述残余分量的两个另外的虚拟源。
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42.发明授权公开(公告)号：US09009057B2
公开(公告)日：2015-04-14
申请号：US12279856
申请日：2007-02-13
CPC分类号： G10L19/008 , H04S3/004 , H04S5/005 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： An audio encoder comprises a multi-channel receiver (401) which receives an M-channel audio signal where M>2. A down-mix processor (403) down-mixes the M-channel audio signal to a first stereo signal and associated parametric data and a spatial processor (407) modifies the first stereo signal to generate a second stereo signal in response to the associated parametric data and spatial parameter data for a binaural perceptual transfer function, such as a Head Related Transfer Function (HRTF). The second stereo signal is a binaural signal and may specifically be a (3D) virtual spatial signal. An output data stream comprising the encoded data and the associated parametric data is generated by an encode processor (411) and an output processor (413). The HRTF processing may allow the generation of a (3D) virtual spatial signal by conventional stereo decoders. A multi-channel decoder may reverse the process of the spatial processor (407) to generate an improved quality multi-channel signal.
摘要翻译： 音频编码器包括接收M> 2的M声道音频信号的多声道接收器（401）。 下混合处理器（403）将M声道音频信号下混合到第一立体声信号和相关联的参数数据，并且空间处理器（407）修改第一立体声信号以响应于相关参数而产生第二立体声信号 用于双耳感知传递函数的数据和空间参数数据，例如头部相关传递函数（HRTF）。 第二立体声信号是双耳信号，并且可以具体地是（3D）虚拟空间信号。 包括编码数据和相关参数数据的输出数据流由编码处理器（411）和输出处理器（413）产生。 HRTF处理可以允许由常规立体声解码器生成（3D）虚拟空间信号。 多通道解码器可以反转空间处理器（407）的处理以产生改进的质量多信道信号。
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公开(公告)号：US08634577B2
公开(公告)日：2014-01-21
申请号：US12521884
申请日：2008-01-07
IPC分类号： H04R5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L19/20
摘要： An audio decoder (100) comprising: effect means, decoding means, and rendering means. The effect means (500) generate modified down-mix audio signals from received down-mix audio signals. Said received down-mix audio signals comprise a down-mix of a plurality of audio objects. Said modified down-mix audio signals are obtained by applying effects to estimated audio signals corresponding to audio objects comprised in said received down-mix audio signals. Said estimated audio signals are derived from the received down-mix audio signals based on received parametric data. Said received parametric data comprise a plurality of object parameters for each of the plurality of audio objects. Said modified down-mix audio signals based on a type of the applied effect are decoded by decoding means or rendered by rendering means or combined with the output of rendering means. The decoding means (300) are arranged for decoding the audio objects from the down-mix audio signals or the modified down-mix audio signals based on the parametric data. The rendering means (400) are arranged for generating at least one output audio signal from the decoded audio objects.
摘要翻译： 音频解码器（100）包括：效果装置，解码装置和渲染装置。 效果意味着（500）从接收的低混音音频信号产生修改的混音音频信号。 所述接收的低混音音频信号包括多个音频对象的下混合。 所述修改的降混音频信号通过对与包含在所述接收的低混音音频信号中的音频对象相对应的估计音频信号应用效果来获得。 基于所接收的参数数据，从所接收的缩混音频信号中导出所述估计音频信号。 所述接收的参数数据包括用于多个音频对象中的每一个的多个对象参数。 基于应用效果的类型的所述修改的降混音频信号由解码装置解码或由渲染装置渲染或与渲染装置的输出组合。 解码装置（300）被布置用于基于参数数据从混合音频信号或修改的缩混音频信号中解码音频对象。 渲染装置（400）被布置用于从解码的音频对象生成至少一个输出音频信号。
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公开(公告)号：US20120283979A1
公开(公告)日：2012-11-08
申请号：US13513216
申请日：2010-12-16
CPC分类号： A61B5/01 , A61B5/103 , A61B5/11 , A61B5/113 , A61B5/4818 , A61B5/6892 , A61B5/721 , A61B2503/06 , A61B2560/0252 , A61B2562/0219 , A61B2562/0247 , A61B2562/046
摘要： The invention relates to a sensor system comprising a sensor array, the sensor array comprising a substrate layer and a plurality of individual first sensor elements for measuring a desired parameter, which first sensor elements are arranged on said substrate layer and define a sensor plane, wherein the sensor array further comprises one or more second sensor elements for measuring a further desired parameter, and wherein the sensor system is configured to process sensor data from the first sensor elements in dependency of sensor data from the one or more second sensor elements.
摘要翻译： 本发明涉及包括传感器阵列的传感器系统，所述传感器阵列包括基底层和用于测量所需参数的多个单独的第一传感器元件，所述第一传感器元件布置在所述基底层上并限定传感器平面，其中 所述传感器阵列还包括用于测量另外的期望参数的一个或多个第二传感器元件，并且其中所述传感器系统配置成根据来自所述一个或多个第二传感器元件的传感器数据来处理来自所述第一传感器元件的传感器数据。
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公开(公告)号：US08135136B2
公开(公告)日：2012-03-13
申请号：US11574418
申请日：2005-08-30
IPC分类号： H04R5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L21/00 , H04S1/002 , H04S2420/03
摘要： A device (10) for enhancing a multi-channel (e.g. stereo) audio signal has a parameter adjustment unit (13) for adjusting an original parameter (α, ILD, ICC) which represents an original inter-channel property of the audio signal. The device further comprises a processing unit (11) for processing the audio signal so as to produce an enhanced audio signal having the adjusted parameter (α′, ILD′, ICC′). The device allows stereo widening or other multi-channel signal enhancements without introducing artifacts.
摘要翻译： 用于增强多声道（例如立体声）音频信号的设备（10）具有用于调整表示音频信号的原始信道间特性的原始参数（α，ILD，ICC）的参数调整单元（13）。 该装置还包括处理单元（11），用于处理该音频信号以产生具有调整后的参数（α'，ILD'，ICC'）的增强音频信号。 该器件允许立体声加宽或其他多通道信号增强而不引入伪像。
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公开(公告)号：US08065136B2
公开(公告)日：2011-11-22
申请号：US12871183
申请日：2010-08-30
申请人： Gerard Herman Hotho , Dirk Jeroen Breebaart , Evgeny Alexandrovitch Verbitskiy , Albertus Cornelis Den Brinker
发明人： Gerard Herman Hotho , Dirk Jeroen Breebaart , Evgeny Alexandrovitch Verbitskiy , Albertus Cornelis Den Brinker
IPC分类号： G10L11/00
CPC分类号： G10L19/02 , G10L19/008 , G10L19/0204 , H04S3/008
摘要： In a method of encoding input signals (CH1 to CH3; 400 to 450) in a multi-channel encoder (5; 15) to generate corresponding output data having down-mix output signals (610, 620) together with complementary parametric data (600), the method includes a first step of down-mixing input signals (CH1 to CH3; 400 to 450) to generate the corresponding down-mix output signals (610, 620), and a second step of processing the input signals (CH1 to CH3; 400 to 450) during down-mixing to generate the parametric data (600) complementary to the down-mix output signals (610, 620). Processing of the input signals (CH1 to CH3; 400 to 450) involves including information in the down-mix signals (610, 620) which is useable during subsequent decoding of the down-mix output signals (610, 620) and the parametric data (600) to determine at least some parameter data and thereby enabling representations of the input signals (CH1 to CH3; 400 to 450) to be subsequently regenerated.
摘要翻译： 在多通道编码器（5; 15）中编码输入信号（CH1至CH3; 400至450）的方法中，以产生具有下混合输出信号（610,620）的相应输出数据以及互补参数数据（600 ），该方法包括将输入信号（CH1至CH3; 400至450）进行下混合以产生相应的下混合输出信号（610,620）的第一步骤，以及将输入信号（CH1至 CH3; 400至450），以产生与下混合输出信号（610,620）互补的参数数据（600）。 输入信号（CH1至CH3; 400至450）的处理涉及将缩减混合信号（610,620）中的信息包括在下混合输出信号（610,620）的随后解码期间可用的信息和参数数据 （600）以确定至少一些参数数据，从而使得能够随后再生所述输入信号（CH1至CH3; 400至450）的表示。
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公开(公告)号：US20110166866A1
公开(公告)日：2011-07-07
申请号：US13052176
申请日：2011-03-21
CPC分类号： G10L19/008 , G10L19/24 , H04S3/008 , H04S2420/03
摘要： A method of synthesizing a first (L) and a second (R) output signal from an input signal (x). The method comprises: filtering (201) the input signal to generate a filtered signal (Hx); obtaining a correlation parameter (ρ) indicative of a desired correlation between the first and second output signals; obtaining a level parameter (c) indicative of a desired level difference between the first and second input signals; and transforming the input signal and the filtered signal by a matrixing operation (203) into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
摘要翻译： 一种从输入信号（x）合成第一（L）和第二（R）输出信号的方法。 该方法包括：对输入信号进行滤波（201）以产生滤波信号（Hx）; 获得指示所述第一和第二输出信号之间期望的相关性的相关参数（＆rgr;）; 获得指示所述第一和第二输入信号之间的期望电平差的电平参数（c）; 以及通过矩阵运算（203）将输入信号和滤波后的信号变换成第一和第二输出信号，其中矩阵运算取决于相关参数和电平参数。
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公开(公告)号：US07933415B2
公开(公告)日：2011-04-26
申请号：US10511798
申请日：2003-04-22
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , G10L19/24 , H04S3/008 , H04S2420/03
摘要： A method of synthesizing a first (L) and a second (R) output signal from an input signal (x). The method comprises: filtering (201) the input signal to generate a filtered signal; obtaining a correlation parameter indicative of a desired correlation between the first and second output signals; obtaining a level parameter (c) indicative of a desired level difference between the first and second input signals; and transforming the input signal and the filtered signal by a matrixing operation (203) into the first and second output signals, where the matrixing operation depends on the correlation parameter and the level parameter.
摘要翻译： 一种从输入信号（x）合成第一（L）和第二（R）输出信号的方法。 该方法包括：对输入信号进行滤波（201）以产生滤波信号; 获得指示所述第一和第二输出信号之间的期望相关性的相关参数; 获得指示所述第一和第二输入信号之间的期望电平差的电平参数（c）; 以及通过矩阵运算（203）将输入信号和滤波后的信号变换成第一和第二输出信号，其中矩阵运算取决于相关参数和电平参数。
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公开(公告)号：US20100191537A1
公开(公告)日：2010-07-29
申请号：US12665106
申请日：2008-06-23
IPC分类号： G10L21/00
CPC分类号： H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A binaural object-oriented audio decoder comprising decoding means for decoding and rendering at least one audio object based on head-related transfer function parameters is proposed. Said decoding means are being arranged for positioning an audio object in a virtual three-dimensional space. Said head-related transfer function parameters are being based on an elevation parameter, an azimuth parameter, and a distance parameter. Said parameters are corresponding to the position of the audio object in the virtual three-dimensional space. The binaural object-oriented audio decoder is configured for receiving the head-related transfer function parameters, whereby said received head-related transfer function parameters are varying for the elevation parameter and the azimuth parameter only. Said binaural object-oriented audio decoder is characterized by distance processing means for modifying the received head-related transfer function parameters according to a received desired distance parameter. Said modified head-related transfer function parameters are being used to position the audio object in the three-dimensions at the desired distance. Said modification of the head-related transfer function parameters is based on a predetermined distance parameter for said received head-related function parameters.
摘要翻译： 提出了一种双耳面向对象音频解码器，其包括用于基于头相关传递函数参数解码和呈现至少一个音频对象的解码装置。 所述解码装置被布置用于将音频对象定位在虚拟三维空间中。 所述头相关传递函数参数是基于仰角参数，方位角参数和距离参数。 所述参数对应于虚拟三维空间中的音频对象的位置。 双耳面向对象音频解码器被配置用于接收头部相关的传递函数参数，由此所述接收到的与头部相关的传递函数参数仅对于仰角参数和方位角参数而变化。 所述双耳面向对象音频解码器的特征在于距离处理装置，用于根据接收到的期望距离参数来修改所接收的与头部相关的传送函数参数。 所述修改的头相关传递函数参数用于将音频对象以三维定位在期望的距离处。 头部相关传递函数参数的所述修改基于用于所述接收的与头部相关的功能参数的预定距离参数。
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公开(公告)号：US20090287495A1
公开(公告)日：2009-11-19
申请号：US12509529
申请日：2009-07-27
IPC分类号： G10L19/00
CPC分类号： H04R5/00 , G10L19/008 , H04S3/008 , H04S2420/03
摘要： In summary, this application describes a psycho-acoustically motivated, parametric description of the spatial attributes of multichannel audio signals. This parametric description allows strong bitrate reductions in audio coders, since only one monaural signal has to be transmitted, combined with (quantized) parameters which describe the spatial properties of the signal. The decoder can form the original amount of audio channels by applying the spatial parameters. For near-CD-quality stereo audio, a bitrate associated with these spatial parameters of 10 kbit/s or less seems sufficient to reproduce the correct spatial impression at the receiving end.
摘要翻译： 总之，本应用程序描述了多声道音频信号的空间属性的心理声学动机的参数描述。 该参数描述允许音频编码器中的强比特率降低，因为只需要传输一个单声道信号，并与描述信号的空间属性的（量化）参数组合。 解码器可以通过应用空间参数形成原始数量的音频通道。 对于近CD质量的立体声音频，与这些10 kbit / s或更小的空间参数相关联的比特率似乎足以在接收端再现正确的空间印象。
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