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1. 发明申请

WO2014116518A1 AUTOMATIC LOUDSPEAKER POLARITY DETECTION 审中-公开
标题翻译：自动扬声器极性检测
公开(公告)号：WO2014116518A1
公开(公告)日：2014-07-31
申请号：PCT/US2014/012069
申请日：2014-01-17
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： DAVIS, Mark F. , FIELDER, Louis D. , SOLE, Antonio Mateos , CENGARLE, Giulio , BHARITKAR, Sunil
IPC分类号： H04R29/00
CPC分类号： H04R29/001 , H04R29/002 , H04S3/00 , H04S7/00
摘要： In some embodiments, a method for automatic detection of polarity of speakers, e.g., speakers installed in cinema environments. In some embodiments, the method determines relative polarities of a set of speakers (e.g., loudspeakers and/or drivers of a multi-driver loudspeaker) using a set of microphones, including by measuring impulse responses, including an impulse response for each speaker-microphone pair; clustering the speakers into a set of groups, each group including at least two of the speakers which are similar to each other in at least one respect; and for each group, determining and analyzing cross-correlations of pairs of impulse responses (e.g., pairs of processed versions of impulse responses) of speakers in the group to determine relative polarities of the speakers. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the inventive method, and computer readable media (e.g., discs) which store code for implementing any embodiment of the inventive method.
摘要翻译：在一些实施例中，用于自动检测扬声器（例如安装在电影环境中的扬声器）的极性的方法。在一些实施例中，该方法使用一组麦克风来确定一组扬声器（例如，多驱动扬声器的扬声器和/或驱动器）的相对极性，包括通过测量脉冲响应，包括每个扬声器麦克风的脉冲响应对; 将扬声器聚集成一组，每个组包括至少两个在至少一个方面彼此相似的扬声器; 并且对于每个组，确定和分析组中的扬声器的脉冲响应对（例如脉冲响应的处理版本对）的交叉相关性，以确定扬声器的相对极性。其他方面包括配置（例如，编程）用于执行本发明方法的任何实施例的系统，以及存储用于实现本发明方法的任何实施例的代码的计算机可读介质（例如，盘）。

2. 发明申请

WO2017024001A1 LOW BIT RATE PARAMETRIC ENCODING AND TRANSPORT OF HAPTIC-TACTILE SIGNALS 审中-公开
标题翻译：低比特率信号的低比特率编码和传输
公开(公告)号：WO2017024001A1
公开(公告)日：2017-02-09
申请号：PCT/US2016/045291
申请日：2016-08-03
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： BHARITKAR, Sunil , ROBINSON, Charles Q. , KUMAR, Vivek , RIEDMILLER, Jeffrey , FERSCH, Christof
IPC分类号： G06F3/01 , A63F13/285 , G08B6/00 , G10L19/00 , G10L21/00
CPC分类号： G06F3/016 , G10L19/00 , G10L19/167
摘要： Techniques for low bit rate parametric encoding of haptic-tactile signals. The techniques encompass a parametric encoding method. The parametric encoding method includes the steps of: for at least one frame of a plurality of frames of a source haptic-tactile signal, representing the source haptic-tactile signal in the frame as a set of parameters and according to a functional representation; and including the set of parameters in a bit stream that encodes the source haptic-tactile signal. The functional representation is based on one of a set of orthogonal functionals, or polynomial approximation. For example, the functional representation can be based on one of Chebyshev functionals of the first kind through order n, Chebyshev functionals of the second kind through order n, or k-th order polynomial approximation.
摘要翻译：触觉触觉信号的低比特率参数编码技术。这些技术包括参数编码方法。参数编码方法包括以下步骤：对于源触觉触觉信号的多个帧中的至少一帧，将帧中的源触觉触觉信号表示为一组参数并根据功能表示; 并且在编码源触觉触觉信号的比特流中包括参数集合。功能表示基于一组正交函数或多项式近似。例如，功能表示可以基于第一类的切比雪夫功能之一，通过次序n，第二类的切比雪夫功能通过阶n或k阶多项式近似。

3. 发明公开

EP2949133A1 AUTOMATIC LOUDSPEAKER POLARITY DETECTION 有权转让
标题翻译：自动极性检测扬声器
公开(公告)号：EP2949133A1
公开(公告)日：2015-12-02
申请号：EP14742990.6
申请日：2014-01-17
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： DAVIS, Mark F. , FIELDER, Louis , SOLE, Antonio Mateos , CENGARLE, Giulio , BHARITKAR, Sunil
IPC分类号： H04R29/00
CPC分类号： H04R29/001 , H04R29/002 , H04S3/00 , H04S7/00
摘要： In some embodiments, a method for automatic detection of polarity of speakers, e.g., speakers installed in cinema environments. In some embodiments, the method determines relative polarities of a set of speakers (e.g., loudspeakers and/or drivers of a multi-driver loudspeaker) using a set of microphones, including by measuring impulse responses, including an impulse response for each speaker-microphone pair; clustering the speakers into a set of groups, each group including at least two of the speakers which are similar to each other in at least one respect; and for each group, determining and analyzing cross-correlations of pairs of impulse responses (e.g., pairs of processed versions of impulse responses) of speakers in the group to determine relative polarities of the speakers. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the inventive method, and computer readable media (e.g., discs) which store code for implementing any embodiment of the inventive method.

4. 发明授权

EP2949133B1 AUTOMATIC LOUDSPEAKER POLARITY DETECTION 有权转让
公开(公告)号：EP2949133B1
公开(公告)日：2019-02-13
申请号：EP14742990.6
申请日：2014-01-17
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： DAVIS, Mark F. , FIELDER, Louis , SOLE, Antonio Mateos , CENGARLE, Giulio , BHARITKAR, Sunil
IPC分类号： H04R29/00 , H04S7/00 , H04S3/00

5. 发明公开

EP3332310A1 LOW BIT RATE PARAMETRIC ENCODING AND TRANSPORT OF HAPTIC-TACTILE SIGNALS 有权转让
公开(公告)号：EP3332310A1
公开(公告)日：2018-06-13
申请号：EP16751106.2
申请日：2016-08-03
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： BHARITKAR, Sunil , ROBINSON, Charles Q. , KUMAR, Vivek , RIEDMILLER, Jeffrey , FERSCH, Christof
IPC分类号： G06F3/01 , A63F13/285 , G08B6/00 , G10L19/00 , G10L21/00
CPC分类号： G08B6/00 , G06F3/016 , G10L19/00 , G10L19/167
摘要： Techniques for low bit rate parametric encoding of haptic-tactile signals. The techniques encompass a parametric encoding method. The parametric encoding method includes the steps of: for at least one frame of a plurality of frames of a source haptic-tactile signal, representing the source haptic-tactile signal in the frame as a set of parameters and according to a functional representation; and including the set of parameters in a bit stream that encodes the source haptic-tactile signal. The functional representation is based on one of a set of orthogonal functionals, or polynomial approximation. For example, the functional representation can be based on one of Chebyshev functionals of the first kind through order n, Chebyshev functionals of the second kind through order n, or k-th order polynomial approximation.

6. 发明授权

EP3332310B1 LOW BIT RATE PARAMETRIC ENCODING AND TRANSPORT OF HAPTIC-TACTILE SIGNALS 有权转让
公开(公告)号：EP3332310B1
公开(公告)日：2019-05-29
申请号：EP16751106.2
申请日：2016-08-03
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： BHARITKAR, Sunil , ROBINSON, Charles Q. , KUMAR, Vivek , RIEDMILLER, Jeffrey , FERSCH, Christof
IPC分类号： G10L19/16 , G06F3/01 , A63F13/285 , G08B6/00 , G10L19/00 , G10L21/00

7. 发明申请

WO2016133988A1 LOUDSPEAKER-ROOM EQUALIZATION WITH PERCEPTUAL CORRECTION OF SPECTRAL DIPS 审中-公开
标题翻译：亮度均衡与频谱校正的均衡
公开(公告)号：WO2016133988A1
公开(公告)日：2016-08-25
申请号：PCT/US2016/018216
申请日：2016-02-17
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： BHARITKAR, Sunil , ROBINSON, Charles Q.
IPC分类号： H04R3/04
CPC分类号： H03G5/165 , H04R1/406 , H04R3/005 , H04R3/04 , H04R29/001 , H04S7/301
摘要： A method for generating a perceptual equalization (EQ) filter applicable to an audio signal to equalize the audio signal, including: generating a full EQ filter for use in performing full equalization on the signal; and modifying the frequency-amplitude spectrum of the full EQ filter in accordance with a dip detection threshold function, thereby generating the perceptual EQ filter, where the dip detection threshold function is indicative of minimum perceivable amplitude of each of at least a number of different dips in the frequency-amplitude spectrum of an acoustic signal. Also, a method for equalizing an audio signal, including: generating a full EQ filter for use in performing full equalization on the signal, modifying the frequency-amplitude spectrum of the full EQ filter in accordance with at least one dip detection threshold value, thereby generating a perceptual EQ filter, and applying the perceptual EQ filter to perceptually equalize the signal.
摘要翻译：一种用于产生适用于音频信号以均衡音频信号的感知均衡（EQ）滤波器的方法，包括：产生用于对该信号执行完全均衡的全EQ滤波器; 以及根据陡倾检测阈值函数修改全EQ滤波器的频率幅度谱，从而产生感知EQ滤波器，其中陡倾检测阈值函数指示至少多个不同下降中的每一个的最小可感知振幅在声信号的频率幅度谱中。此外，一种用于均衡音频信号的方法，包括：产生用于对信号执行完全均衡的完整EQ滤波器，根据至少一个dip检测阈值修改全EQ滤波器的频率幅度谱，从而生成感知EQ滤波器，并将感知EQ滤波器应用于感知地均衡信号。

8. 发明申请

WO2013006324A2 AUDIO PLAYBACK SYSTEM MONITORING 审中-公开
标题翻译：音频播放系统监控
公开(公告)号：WO2013006324A2
公开(公告)日：2013-01-10
申请号：PCT/US2012/044342
申请日：2012-06-27
申请人： DOLBY LABORATORIES LICENSING CORPORATION , BHARITKAR, Sunil , CROCKETT, Brett G. , FIELDER, Louis D. , ROCKWELL, Michael
发明人： BHARITKAR, Sunil , CROCKETT, Brett G. , FIELDER, Louis D. , ROCKWELL, Michael
IPC分类号： H04R29/00
CPC分类号： H04R29/002 , H04H60/04 , H04H60/33 , H04R3/12 , H04R29/001 , H04R2430/03
摘要： In some embodiments, a method for monitoring speakers within an audio playback system (e.g., movie theater) environment. In typical embodiments, the monitoring method assumes that initial characteristics of the speakers (e.g., a room response for each of the speakers) have been determined at an initial time, and relies on one or more microphones positioned in the environment to perform a status check on each of the speakers to identify whether a change to at least one characteristic of any of the speakers has occurred since the initial time. In other embodiments, the method processes data indicative of output of a microphone to monitor audience reaction to an audiovisual program. Other aspects include a system configured (e.g., programmed) to perform any embodiment of the inventive method, and a computer readable medium (e.g., a disc) which stores code for implementing any embodiment of the inventive method.
摘要翻译：在一些实施例中，一种用于监视音频播放系统（例如，电影院）环境中的扬声器的方法。在典型的实施例中，监视方法假设扬声器的初始特性（例如，每个扬声器的房间响应）已经在初始时间被确定，并且依赖于位于环境中的一个或多个麦克风来执行状态检查在每个扬声器上，以识别自从初始时间以来是否发生了任何扬声器的至少一个特征的改变。在其他实施例中，该方法处理指示麦克风的输出的数据，以监视对视听程序的观众反应。其他方面包括配置（例如，编程）以执行本发明方法的任何实施例的系统，以及存储用于实现本发明方法的任何实施例的代码的计算机可读介质（例如，盘）。

9. 发明申请

WO2016069809A1 IMPEDANCE MATCHING FILTERS AND EQUALIZATION FOR HEADPHONE SURROUND RENDERING 审中-公开
标题翻译：阻抗匹配滤波器和平衡电脑环绕渲染
公开(公告)号：WO2016069809A1
公开(公告)日：2016-05-06
申请号：PCT/US2015/057906
申请日：2015-10-28
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： BHARITKAR, Sunil , FIELDER, Louis D.
IPC分类号： H04S3/00 , H04S7/00
CPC分类号： H04S3/004 , H04S7/302 , H04S7/304 , H04S2400/01 , H04S2420/01
摘要： Embodiments are described for designing a filter in a magnitude domain performing an impedance filtering function over a frequency domain to compensate for directional cues for the left and right ears of the listener as a function of virtual source angles during headphone virtual sound reproduction. The filter is derived by obtaining blocked ear canal and open ear canal transfer functions for loudspeakers placed in a room, obtaining an open ear canal transfer function for a headphone placed on a listening subject, and dividing the loudspeaker transfer functions by the headphone transfer function to invert a headphone response at the entrance of the ear canal and map the ear canal function from the headphone to free field.
摘要翻译：描述了用于设计在频域上执行阻抗滤波功能的幅度滤波器的实施例，以在耳机虚拟声音再现期间作为虚拟源角度的函数来补偿收听者的左耳和右耳的方向提示。滤波器是通过获得被放置在房间中的扬声器的阻塞耳道和开放式耳道传递函数得到的，获得用于放置在听音对象上的耳机的开放耳道传递函数，并且通过耳机传递函数将扬声器传递函数除以在耳道入口处转换耳机响应，并将耳道功能从耳机映射到自由场。

10. 发明申请

WO2015066062A1 BINAURAL RENDERING FOR HEADPHONES USING METADATA PROCESSING 审中-公开
标题翻译：使用元数据处理的耳机的双向渲染
公开(公告)号：WO2015066062A1
公开(公告)日：2015-05-07
申请号：PCT/US2014/062705
申请日：2014-10-28
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： TSINGOS, Nicolas R. , WILSON, Rhonda , BHARITKAR, Sunil , BROWN, C. Phillip , SEEFELDT, Alan J. , AUDFRAY, Remi
IPC分类号： H04S7/00 , G10L19/20
CPC分类号： G06F3/162 , G06F3/04842 , H04R5/04 , H04S1/007 , H04S7/304 , H04S7/306 , H04S2400/03 , H04S2400/13 , H04S2420/01
摘要： Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.
摘要翻译：描述了用于通过耳机播放音频的方法的实施例，包括接收数字音频内容，接收由制作工具生成的处理所接收的数字音频内容的双耳呈现元数据，接收由播放设备产生的播放元数据，以及组合双耳渲染元数据并播放元数据以通过耳机优化数字音频内容的播放。

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