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    Haptic signal synthesis and transport in a bit stream
    3.
    发明授权
    Haptic signal synthesis and transport in a bit stream 有权
    触觉信号合成和传输在一个比特流

    公开(公告)号：US09349378B2

    公开(公告)日：2016-05-24

    申请号：US14536755

    申请日：2014-11-10

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Sunil Bharitkar ,  Jeffrey Riedmiller ,  C. Phillip Brown

    IPC: H04R5/00 ,  G10L19/008 ,  G08B6/00 ,  G10L21/16

    CPC classification number: G10L19/008 ,  G06F3/016 ,  G08B6/00 ,  G10L21/16

    Abstract: Techniques for synthesizing a parameterized haptic track from a multichannel audio signal and embedding the haptic track in a multichannel audio codec bit stream. The haptic track synthesis can occur while encoding the multichannel audio signal as the multichannel audio codec bit stream. The haptic track can be synthesized in a way that allows select parameters of the haptic track to be extracted from the audio signal. The parameters can be adjusted by a user during the encoding process. For example, the parameter adjustments can be made using a authoring/monitoring tool. The parameter adjustments can be recorded as metadata that, along with the haptic track, is included in the codec bit stream. In some aspects the present technology, the adjustable parameters include center frequency, gain, decay rate, and other parameters that allow for modulation of the haptic track during decoding of the codec bit stream. By synthesizing a parameterized haptic track, A/V content creators can be provided greater control in authoring haptic content to accompany the A/V content they create.

    Abstract translation: 用于从多声道音频信号合成参数化的触觉轨迹并将所述触觉轨迹嵌入在多声道音频编解码器比特流中的技术。 在将多声道音频信号编码为多声道音频编解码器比特流的同时可以发生触觉轨道合成。 可以以允许从音频信号中提取触觉轨道的选择参数的方式来合成触觉轨迹。 在编码过程中，用户可以调整参数。 例如，可以使用创作/监视工具进行参数调整。 参数调整可以被记录为元数据，其与触觉轨迹一起被包括在编解码器比特流中。 在一些方面，本技术中，可调整的参数包括中心频率，增益，衰减速率以及允许在编解码器比特流解码期间调制触觉轨迹的其他参数。 通过合成参数化的触觉轨迹，可以提供A / V内容创建者更大的控制权限来创作触觉内容以伴随其创建的A / V内容。

    Audio Playback System Monitoring
    4.
    发明申请
    Audio Playback System Monitoring 有权
    音频播放系统监控

    公开(公告)号：US20140119551A1

    公开(公告)日：2014-05-01

    申请号：US14126985

    申请日：2012-06-27

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Sunil Bharitkar ,  Brett G. Crockett ,  Louis D. Fielder ,  Michael Rockwell

    IPC: H04R29/00

    CPC classification number: H04R29/002 ,  H04H60/04 ,  H04H60/33 ,  H04R3/12 ,  H04R29/001 ,  H04R2430/03

    Abstract: 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.

    Abstract translation: 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）。

    Automatic loudspeaker polarity detection
    7.
    发明授权
    Automatic loudspeaker polarity detection 有权
    自动扬声器极性检测

    公开(公告)号：US09560461B2

    公开(公告)日：2017-01-31

    申请号：US14761906

    申请日：2014-01-17

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAl AB

    Inventor： Mark F. Davis ,  Louis Fielder ,  Antonio Mateos Sole ,  Giulio Cengarle ,  Sunil Bharitkar

    IPC: H04R29/00 ,  H04S7/00 ,  H04S3/00

    CPC classification number: H04R29/001 ,  H04R29/002 ,  H04S3/00 ,  H04S7/00

    Abstract: 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.

    Abstract translation: 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）。

    Haptic Signal Synthesis and Transport in a Bit Stream
    8.
    发明申请
    Haptic Signal Synthesis and Transport in a Bit Stream 有权
    触发信号合成和位流中的传输

    公开(公告)号：US20150154966A1

    公开(公告)日：2015-06-04

    申请号：US14536755

    申请日：2014-11-10

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Sunil Bharitkar ,  Jeffrey Riedmiller ,  C. Phillip Brown

    IPC: G10L19/008 ,  G08B6/00

    CPC classification number: G10L19/008 ,  G06F3/016 ,  G08B6/00 ,  G10L21/16

    Abstract: Techniques for synthesizing a parameterized haptic track from a multichannel audio signal and embedding the haptic track in a multichannel audio codec bit stream. The haptic track synthesis can occur while encoding the multichannel audio signal as the multichannel audio codec bit stream. The haptic track can be synthesized in a way that allows select parameters of the haptic track to be extracted from the audio signal. The parameters can be adjusted by a user during the encoding process. For example, the parameter adjustments can be made using a authoring/monitoring tool. The parameter adjustments can be recorded as metadata that, along with the haptic track, is included in the codec bit stream. In some aspects the present technology, the adjustable parameters include center frequency, gain, decay rate, and other parameters that allow for modulation of the haptic track during decoding of the codec bit stream. By synthesizing a parameterized haptic track, A/V content creators can be provided greater control in authoring haptic content to accompany the A/V content they create.

    Abstract translation: 用于从多声道音频信号合成参数化的触觉轨迹并将所述触觉轨迹嵌入在多声道音频编解码器比特流中的技术。 在将多声道音频信号编码为多声道音频编解码器比特流的同时可以发生触觉轨道合成。 可以以允许从音频信号中提取触觉轨道的选择参数的方式来合成触觉轨迹。 在编码过程中，用户可以调整参数。 例如，可以使用创作/监视工具进行参数调整。 参数调整可以被记录为元数据，其与触觉轨迹一起被包括在编解码器比特流中。 在一些方面，本技术中，可调整的参数包括中心频率，增益，衰减速率以及允许在编解码器比特流解码期间调制触觉轨迹的其他参数。 通过合成参数化的触觉轨迹，可以提供A / V内容创建者更大的控制权限来创作触觉内容以伴随其创建的A / V内容。

    Impedance matching filters and equalization for headphone surround rendering
    9.
    发明授权
    Impedance matching filters and equalization for headphone surround rendering 有权

    公开(公告)号：US10341799B2

    公开(公告)日：2019-07-02

    申请号：US15522699

    申请日：2015-10-28

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Sunil Bharitkar ,  Louis D. Fielder

    IPC: H04S3/00 ,  H04S7/00

    Abstract: 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.

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