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1. 发明申请

WO2012093352A1 AN AUDIO SYSTEM AND METHOD OF OPERATION THEREFOR 审中-公开
标题翻译：音频系统及其操作方法
公开(公告)号：WO2012093352A1
公开(公告)日：2012-07-12
申请号：PCT/IB2012/050023
申请日：2012-01-03
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OOMEN, Arnoldus, Werner, Johannes , BREEBAART, Dirk, Jeroen , KOPPENS, Jeroen, Gerardus, Henricus , SCHUIJERS, Erik, Gosuinus, Petrus
发明人： OOMEN, Arnoldus, Werner, Johannes , BREEBAART, Dirk, Jeroen , KOPPENS, Jeroen, Gerardus, Henricus , SCHUIJERS, Erik, Gosuinus, Petrus
IPC分类号： H04S3/00 , G10K15/12
CPC分类号： H04R5/04 , G10K15/12 , H04S3/004 , H04S2420/01
摘要： An audio system comprises a receiver (301) for receiving an audio signal, such as an audio object or a signal of a channel of a spatial multi-channel signal. A binaural circuit (303) generates a binaural output signal by processing the audio signal. The processing is representative of a binaural transfer function providing a virtual sound source position for the audio signal. A measurement circuit (307) generating measurement data indicative of a characteristic of the acoustic environment and a determining circuit (311) determines an acoustic environment parameter in response to the measurement data. The acoustic environment parameter may typically be a reverberation parameter, such as a reverberation time. An adaptation circuit (313) adapts the binaural transfer function in response to the acoustic environment parameter. For example, the adaptation may modify a reverberation parameter to more closely resemble the reverberation characteristics of the acoustic environment.
摘要翻译：音频系统包括用于接收音频信号的接收器（301），诸如音频对象或空间多声道信号的信道的信号。双耳电路（303）通过处理音频信号产生双耳输出信号。该处理代表提供音频信号的虚拟声源位置的双耳传递函数。产生表示声学环境的特性的测量数据的测量电路（307）和确定电路（311）响应于测量数据确定声学环境参数。声学环境参数通常可以是混响参数，例如混响时间。适应电路（313）响应于声学环境参数来适应双耳传递函数。例如，适应可以将混响参数修改为更接近于声学环境的混响特性。

2. 发明申请

WO2010150220A1 METHOD AND SYSTEM FOR CONTROLLING THE RENDERING OF AT LEAST ONE MEDIA SIGNAL 审中-公开
标题翻译：用于控制最小一个媒体信号的渲染的方法和系统
公开(公告)号：WO2010150220A1
公开(公告)日：2010-12-29
申请号：PCT/IB2010/052882
申请日：2010-06-24
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OOMEN, Arnoldus Werner Johannes , SCHUIJERS, Erik Gosuinus Petrus
发明人： OOMEN, Arnoldus Werner Johannes , SCHUIJERS, Erik Gosuinus Petrus
IPC分类号： G06F3/048 , G06F3/01 , G02B27/00 , G06T11/00
CPC分类号： G06F3/012 , G02B2027/0187 , G06F3/017 , G06F3/048 , G06F2203/04804 , G06T11/00 , G06T2210/62
摘要： A method of controlling a system for rendering in perceptible form at least one media signal, includes obtaining at least one media signal. A deviation of a user's viewing direction from a reference direction is determined. At least one rendering device is caused to reproduce an obtained media signal in perceptible form through an associated modality, wherein the at least one rendering device is controlled to make an environment of the user relatively more perceptible through the same modality when the user's viewing direction deviates from the reference direction. A direction generally fixed to at least part of a body of the user, at least when the user is positioned in a pre-determined orientation relative to at least one of the rendering devices, is used as the reference direction.
摘要翻译：控制用于以可感知的形式呈现至少一个媒体信号的系统的方法包括获得至少一个媒体信号。确定用户的观察方向与参考方向的偏差。使至少一个渲染设备通过相关联的模式再现以可察觉的形式获得的所获得的媒体信号，其中，当用户的观看方向偏离时，至少一个渲染设备被控制以使得用户的环境通过相同的模式相对更可感知从参考方向。至少当用户相对于至少一个渲染设备定位在预定方位时，通常固定在用户身体的至少一部分上的方向被用作参考方向。

3. 发明申请

WO2009141775A1 A PARAMETRIC STEREO UPMIX APPARATUS, A PARAMETRIC STEREO DECODER, A PARAMETRIC STEREO DOWNMIX APPARATUS, A PARAMETRIC STEREO ENCODER 审中-公开
标题翻译：参数立体声高清设备，参数立体声解码器，参数立体声下载设备，参数立体声编码器
公开(公告)号：WO2009141775A1
公开(公告)日：2009-11-26
申请号：PCT/IB2009/052009
申请日：2009-05-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHUIJERS, Erik, G., P.
发明人： SCHUIJERS, Erik, G., P.
IPC分类号： G10L19/00 , H04S3/02
CPC分类号： H04S5/00 , G10L19/008 , H04S3/02 , H04S2400/03 , H04S2420/03
摘要： A parametric stereo upmix apparatus (300, 400) generating a left signal (206) and a right signal (207) from a mono downmix signal (204) based on spatial parameters (205). Said parametric stereo upmix being characterized in that it comprises a means (310) for predicting a difference signal (311) comprising a difference between the left signal (206) and the right signal(207) based on the mono downmix signal (204) scaled with a prediction coefficient (321). Said prediction coefficient is derived from the spatial parameters (205). Said parametric stereo upmix apparatus (300, 400) further comprises an arithmetic means (330) for deriving the left signal (206) and the right signal (207) based on a sum and a difference of the mono downmix signal (204) and said difference signal (311).
摘要翻译：基于空间参数（205）从单声道下混信号（204）产生左信号（206）和右信号（207）的参数立体声上混装置（300,400）。所述参数立体声上混的特征在于，它包括一个装置（310），用于根据缩放的单声道下混信号（204）预测包括左信号（206）和右信号（207）之间的差的差信号（311）具有预测系数（321）。所述预测系数是从空间参数（205）导出的。所述参数立体声上混装置（300,400）还包括用于根据单声道下混合信号（204）和所述第二混音信号（204）的和和差值导出左信号（206）和右信号（207）的算术装置（330）差分信号（311）。

4. 发明申请

WO2006108456A1 APPARATUS AND METHOD FOR GENERATING MULTI-CHANNEL SYNTHESIZER CONTROL SIGNAL AND APPARATUS AND METHOD FOR MULTI-CHANNEL SYNTHESIZING 审中-公开
标题翻译：用于产生多通道合成器控制信号的装置和方法以及用于多通道合成的装置和方法
公开(公告)号：WO2006108456A1
公开(公告)日：2006-10-19
申请号：PCT/EP2006/000455
申请日：2006-01-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , CODING TECHNOLOGIES AB , KONINKLIJKE PHILIPS ELECTRONICS N.V. , NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
发明人： NEUSINGER, Matthias , HERRE, Juergen , DISCH, Sascha , PURNHAGEN, Heiko , KJOERLING, Kristofer , ENGDEGARD, Jonas , BREEBAART, Jeroen , SCHUIJERS, Erik , OOMEN, Werner
IPC分类号： G10L19/14 , H04S5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L2019/0012 , H04S3/008
摘要： On an encoder-side, a multi-channel audio input signal is analyzed for obtaining smoothing control information, which is to be used by a decoder-side multi-channel audio synthesis for smoothing quantized transmitted parameters or values derived from the quantized transmitted parameters for providing an improved subjective audio quality in particular for slowly moving point sources and rapidly moving point sources having tonal material such as fast moving sinusoids.
摘要翻译：在编码器侧，分析多声道音频输入信号以获得平滑控制信息，该平滑控制信息将被解码器侧多声道音频合成用于平滑量化的发送参数或从量化的发送参数导出的值提供了改进的主观音频质量，特别是用于缓慢移动的点源和具有诸如快速移动的正弦曲线之类的音调材料的快速移动的点源。

5. 发明申请

WO2006048815A1 ENCODING AND DECODING A SET OF SIGNALS 审中-公开
标题翻译：编码和解码一组信号
公开(公告)号：WO2006048815A1
公开(公告)日：2006-05-11
申请号：PCT/IB2005/053548
申请日：2005-10-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , MYBURG, Francois, P. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P.
发明人： MYBURG, Francois, P. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P.
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An encoding device (1) and method convert a set of signals (1, r) into a dominant signal (m) containing most signal energy, a residual signal (s) containing a remainder of the signal energy, and signal parameters (IID, ICC) associated with the conversion. The dominant signal (m) and selected parts of the residual signal (s) are encoded. Selecting parts of the residual signal involves a residual signal (s') passing perceptually relevant parts of the residual signal (s), attenuating perceptually less relevant parts of the residual signal and suppressing least relevant parts of the residual signal. An associated decoding device (2) and method decode the encoded dominant signal and the encoded residual signal so as to produce a decoded dominant signal (m' u ) and a decoded residual signal (s ' mod ) respectively. A synthetic residual signal (s' Syn ) is derived from the decoded dominant signal (m' u ) and is attenuated so as to produce an attenuated synthetic residual signal ( S’ Syn,mod). The attenuated synthetic residual signal (S ' Syn, mod ) and the decoded residual signal ( S’ mod) are combined to produce a reconstructed residual signal (s'). The decoded dominant signal (m') and the reconstructed residual signal (s') are then converted into a set of output signals (l', r').
摘要翻译：一种编码装置（1）和方法，将一组信号（1，r）转换成包含大多数信号能量的显性信号（m），包含信号能量余数的残余信号和信号参数（IID， ICC）与转换相关联。对主要信号（m）和剩余信号的选定部分进行编码。选择残余信号的部分包括通过残留信号的感知相关部分的残差信号（s'），衰减感知上较少的残余信号的相关部分并抑制残留信号的最小相关部分。相关联的解码装置（2）和方法对编码的主导信号和编码的残差信号进行解码，以便产生解码的主导信号（m'U>）和解码的残余信号（s' 模）_{分别。从解码的主导信号（m'）导出合成残差信号（s'S S ut），并且被衰减，以产生衰减的合成残差信号（ S'_{SYN，MOD）。衰减的合成残差信号（S / S）}}

6. 发明申请

WO2005043511A1 AUDIO SIGNAL ENCODING OR DECODING 审中-公开
标题翻译：音频信号编码或解码
公开(公告)号：WO2005043511A1
公开(公告)日：2005-05-12
申请号：PCT/IB2004/052226
申请日：2004-10-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CODING TECHNOLOGIES GMBH , VILLEMOES, Lars, F. , EKSTRAND, Per , PURNHAGEN, Heiko , SCHUIJERS, Erik, G., P. , DE BONT, Fransiscus M., J.
发明人： VILLEMOES, Lars, F. , EKSTRAND, Per , PURNHAGEN, Heiko , SCHUIJERS, Erik, G., P. , DE BONT, Fransiscus M., J.
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L21/038
摘要： Encoding an audio signal is provided wherein the audio signal includes a first audio channel and a second audio channel, the encoding comprising subband filtering each of the first audio channel and the second audio channel in a complex modulated filterbank to provide a first plurality of subband signals for the first audio channel and a second plurality of subband signals for the second audio channel, downsampling each of the subband signals to provide a first plurality of downsampled subband signals and a second plurality of downsampled subband signals, further subband filtering at least one of the downsampled subband signals in a further filterbank in order to provide a plurality of sub-subband signals, deriving spatial parameters from the sub-subband signals and from those downsampled subband signals that are not further subband filtered, and deriving a single channel audio signal comprising derived subband signals derived from the first plurality of downsampled subband signals and the second plurality of downsampled subband signals. Further, decoding is provided wherein an encoded audio signal comprising an encoded single channel audio signal and a set of spatial parameters is decoded by decoding the encoded single channel audio channel to obtain a plurality of downsampled subband signals, further subband filtering at least one of the downsampled subband signals in a further filterbank in order to provide a plurality of sub-subband signals, and deriving two audio channels from the spatial parameters, the sub-subband signals and those downsampled subband signals that are not further subband filtered.
摘要翻译：提供对音频信号的编码，其中音频信号包括第一音频通道和第二音频通道，该编码包括在复调制滤波器组中对第一音频通道和第二音频通道中的每一个进行子带滤波，以提供第一多个子带信号对于第一音频通道和用于第二音频通道的第二多个子带信号，对每个子带信号进行下采样以提供第一多个下采样子带信号和第二多个下采样子带信号，进一步子带滤波至少一个在另一个滤波器组中进行下采样的子带信号，以便提供多个子子带信号，从子子带信号和未进一步子带滤波的那些下采样子带信号导出空间参数，以及导出包括导出的从第一多个下采样子带信号导出的子带信号和第二多个下采样子带信号。此外，提供了解码，其中包括编码的单声道音频信号和一组空间参数的编码音频信号通过对编码的单声道音频声道进行解码以获得多个下采样的子带信号而被解码，进一步的子带滤波至少一个在另一滤波器组中进行下采样的子带信号，以便提供多个子子带信号，以及从空间参数，子子带信号和未进一步子带滤波的那些下采样子带信号导出两个音频信道。

7. 发明申请

WO2010122455A1 AUDIO SIGNAL SYNTHESIZING 审中-公开
标题翻译：音频信号合成
公开(公告)号：WO2010122455A1
公开(公告)日：2010-10-28
申请号：PCT/IB2010/051622
申请日：2010-04-14
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHUIJERS, Erik, G., P. , OOMEN, Arnoldus, W., J. , DE BONT, Fransiscus, M., J. , OSTROVSKYY, Mykola , RIJNBERG, Adriaan, J. , KOPPENS, Jeroen, G., H.
发明人： SCHUIJERS, Erik, G., P. , OOMEN, Arnoldus, W., J. , DE BONT, Fransiscus, M., J. , OSTROVSKYY, Mykola , RIJNBERG, Adriaan, J. , KOPPENS, Jeroen, G., H.
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04R5/033 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： An audio synthesizing apparatus receives an encoded signal comprising a downmix signal and parametric extension data for expanding the downmix signal to a multi- sound source signal. A decomposition processor (205) performs a signal decomposition of the downmix signal to generate at least a first signal component and a second signal component,where the second signal component is at least partially decorrelated with the first signal component. A position processor (207) determines a first spatial position indication for the first signal component in response to the parametric extension data and a binaural processor (211) synthesizes the first signal component based on the first spatial position indication and the second signal component to originate from a different direction. The invention may provide improved spatial experience from e.g. headphones by using a direct synthesis of a main directional signal from the appropriate position rather than as a combination of signals from virtual loudspeaker positions.
摘要翻译：音频合成装置接收包含降混信号和参数扩展数据的编码信号，用于将下混信号扩展为多声源信号。分解处理器（205）执行降混信号的信号分解以产生至少第一信号分量和第二信号分量，其中第二信号分量与第一信号分量至少部分去相关。位置处理器（207）响应于参数扩展数据确定第一信号分量的第一空间位置指示，并且双耳处理器（211）基于第一空间位置指示和第二信号分量来合成第一信号分量以产生从不同的方向。本发明可以提供来自例如，通过使用来自适当位置的主要定向信号的直接合成而不是来自虚拟扬声器位置的信号的组合来使用耳机。

8. 发明申请

WO2010097748A1 PARAMETRIC STEREO ENCODING AND DECODING 审中-公开
标题翻译：参数STEREO编码和解码
公开(公告)号：WO2010097748A1
公开(公告)日：2010-09-02
申请号：PCT/IB2010/050763
申请日：2010-02-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , OOMEN, Arnoldus, W., J. , SCHUIJERS, Erik, G., P. , BREEBAART, Dirk, J.
发明人： OOMEN, Arnoldus, W., J. , SCHUIJERS, Erik, G., P. , BREEBAART, Dirk, J.
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： H04S1/002 , G10L19/008 , H04S2420/03
摘要： A decoder comprises a receiver (601) which receives a parametrically encoded signal comprising a downmix of multiple channels, a set of upmix parameters including a phase parameter, and a phase correction parameter. The phase correction parameter is provided for second parts of the downmix but not for first parts of the downmix. An upmixer (603, 605) generates the multi-channel signal by upmixing the downmix based on the set of upmix parameters and a modifying unit (607) modify the upmixing in response to the phase correction parameter for the second parts of the downmix. The second parts may be associated with scenarios wherein at least two of the encoded multichannel signals are out of phase. The invention may provide improved audio quality for a reduced data rate.
摘要翻译：解码器包括接收器（601），其接收包括多个通道的下混合的参数编码信号，一组包括相位参数的上混参数和相位校正参数。相位校正参数为下混合的第二部分提供，而不是下混合的第一部分。上混合器（603,605）通过基于上混合参数集合上混合下混合来产生多声道信号，并且修改单元（607）响应于下混合的第二部分的相位校正参数修改上混合。第二部分可以与其中至少两个编码的多信道信号异相的情况相关联。本发明可以为降低的数据速率提供改进的音频质量。

9. 发明申请

WO2010092524A2 HEAD TRACKING 审中-公开
标题翻译：头跟踪
公开(公告)号：WO2010092524A2
公开(公告)日：2010-08-19
申请号：PCT/IB2010050571
申请日：2010-02-09
申请人： KONINKL PHILIPS ELECTRONICS NV , DILLEN PAULUS H A , OOMEN ARNOLDUS W J , SCHUIJERS ERIK G P
发明人： DILLEN PAULUS H A , OOMEN ARNOLDUS W J , SCHUIJERS ERIK G P
IPC分类号： H04S7/00
CPC分类号： H04S7/304
摘要： A head tracking system (400) is proposed in the present invention that determines a rotation angle (300) of a head (100b) of a user (100) with respect to a reference direction (310), which is dependent on a movement of a user (100). Here the movement of a user should be understood as an act or process of moving including e.g. changes of place, position, or posture, such as e.g. lying down or sitting in a relaxation chair. The head tracking system according to the invention comprises a sensing device (410) for measuring a head movement to provide a measure (401) representing the head movement, and a processing circuit (420) for deriving the rotation angle of the head of the user with respect to the reference direction from the measure. The reference direction (310) used in the processing circuit (420) is dependent on the movement of the user. The advantage of making the reference direction (310) dependent on a movement of a user is that determining the rotation angle (300) of the head (100b) is independent of the environment, i.e. not fixed to environment. Hence whenever the user (100) is e.g. on the move and his body parts undergo movement the reference direction is adapted to this movement.
摘要翻译：在本发明中提出了一种头跟踪系统（400），其确定用户（100）的头部（100）相对于参考方向（310）的旋转角度（300），其基于一个用户（100）。这里，用户的移动应该被理解为移动的动作或过程，包括例如地点，位置或姿势的变化，例如躺下或坐在放松椅子上。根据本发明的头跟踪系统包括用于测量头部移动以提供表示头部移动的测量（401）的感测装置（410），以及用于导出用户头部的旋转角度的处理电路（420）关于措施的参考方向。在处理电路（420）中使用的参考方向（310）取决于用户的移动。使参考方向（310）取决于用户移动的优点在于确定头部（100b）的旋转角度（300）是独立于环境的，即不固定于环境。因此，每当用户（100）是例如在移动中，他的身体部位经历运动，参考方向适应于这种运动。

10. 发明申请

WO2008096313A1 LOW COMPLEXITY PARAMETRIC STEREO DECODER 审中-公开
标题翻译：低复杂参数立体声解码器
公开(公告)号：WO2008096313A1
公开(公告)日：2008-08-14
申请号：PCT/IB2008/050401
申请日：2008-02-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SZCZERBA, Marek, Z. , SCHUIJERS, Erik, G., P. , DILLEN, Paulus, H., A.
发明人： SZCZERBA, Marek, Z. , SCHUIJERS, Erik, G., P. , DILLEN, Paulus, H., A.
IPC分类号： G10L19/00 , G10L19/08 , H04S1/00
CPC分类号： H04R5/04 , G10L19/008 , G10L19/093 , G10L19/16
摘要： A stereo audio decoder with low complexity is provided. A high stereo sound quality can be obtained with a limited computational power and is thus suitable for miniature and mobile equipment. The stereo decoder generates a set of stereo output channels (C1, C2) in response to a parametric audio input including signal parameters (S1) and stereo related parameters (X1). A parameter processor (M) generates two different set of parameters (P1, P2) based on the input signal parameters (S1) thus up-mixing the signal parameters (S1) by altering or manipulating the signal parameters (S1) corresponding to the stereo related parameters (X1). The two different parameters (P1, P2) are finally synthesized by separate signalsynthesizers (SS1, SS2) to form respective stereo output channels (C1, C2). Since the stereo decoding can be performed in the parameter domain instead ofthe spectral domain, the required computational burden is reduced compared to what is known in prior art. Preferably the signalsynthesizers (SS1, SS2) are sinusoidal synthesizers, and preferably the decoder also includes transient and noise synthesizers to generate transient and noise signal portions to be applied to the stereo output channels (C1, C2). Further, different transient and noise signalportions to the output channels (C1, C2) may be provided by applying different gains based on the stereorelated parameter (X1). In preferred embodiments the two parameters (P1, P2) are determined from a current as well as a previous signal parameter input, e.g. by means of an input delay line.
摘要翻译：提供了一种低复杂度的立体声音频解码器。可以以有限的计算能力获得高立体声音质，因此适合于微型和移动设备。立体声解码器响应于包括信号参数（S1）和立体声相关参数（X1）的参数音频输入而产生一组立体声输出声道（C1，C2）。参数处理器（M）基于输入信号参数（S1）生成两组不同的参数（P1，P2），从而通过改变或操纵对应于立体声的信号参数（S1）来上变频信号参数（S1）相关参数（X1）。两个不同的参数（P1，P2）最后由分离的信号合成器（SS1，SS2）合成以形成相应的立体声输出通道（C1，C2）。由于可以在参数域而不是频域执行立体声解码，与现有技术中已知的相比，减少了所需的计算负担。优选地，信号合成器（SS1，SS2）是正弦合成器，并且优选地，解码器还包括瞬态和噪声合成器，以产生要施加到立体声输出通道（C1，C2）的瞬态和噪声信号部分。此外，可以通过基于立体像差参数（X1）应用不同的增益来提供对输出通道（C1，C2）的不同的瞬态和噪声信号分量。在优选实施例中，两个参数（P1，P2）由当前以及先前的信号参数输入（例如，通过输入延迟线。

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