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    Generating Binaural Audio in Response to Multi-Channel Audio Using at Least One Feedback Delay Network
    3.
    发明申请
    Generating Binaural Audio in Response to Multi-Channel Audio Using at Least One Feedback Delay Network 有权
    生成双耳音频响应多声道音频使用至少一个反馈延迟网络

    公开(公告)号：US20160345116A1

    公开(公告)日：2016-11-24

    申请号：US15109541

    申请日：2014-12-18

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Kuan-Chieh YEN ,  Dirk Jeroen BREEBAART ,  Grant A. DAVIDSON ,  Rhonda WILSON ,  David M. Cooper ,  Zhiwei SHUANG

    IPC: H04S7/00 ,  G10L19/008

    Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feed-back delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

    Abstract translation: 在一些实施例中，用于响应多声道音频信号的信道产生双耳信号的虚拟化方法，其通过使用至少一个反馈延迟网络（FDN）向每个信道应用双耳房间脉冲响应（BRIR） 将通用的后期混响应用于频道的混合。 在一些实施例中，输入信号信道在第一处理路径中被处理以向每个信道应用用于信道的单信道BRIR的直接响应和早期反射部分，并且在第二处理路径中处理信道的混合，包括 至少一个FDN应用公共的后期混响。 通常，常见的后期混响模拟了至少一些单通道BRIR的后期混响部分的集体宏属性。 其他方面是被配置为执行该方法的任何实施例的耳机虚拟器。

    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES
    4.
    发明申请
    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES 审中-公开
    用于设计和应用数值优化的BINURAL ROOM IMPULSE反应的方法和系统

    公开(公告)号：US20160337779A1

    公开(公告)日：2016-11-17

    申请号：US15109557

    申请日：2014-12-23

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Grant A. DAVIDSON ,  Kuan-Chieh YEN ,  Dirk Jeroen BREEBAART

    IPC: H04S7/00

    CPC classification number: H04S7/304 ,  H04S7/306 ,  H04S2400/03 ,  H04S2420/01 ,  H04S2420/07

    Abstract: Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other aspects are audio processing units configured to perform any embodiment of the inventive method. In accordance with some embodiments, BRIR design is formulated as a numerical optimization problem based on a simulation model (which generates candidate BRIRs) and at least one objective function (which evaluates each candidate BRIR), and includes identification of a best one of the candidate BRIRs as indicated by performance metrics determined for the candidate BRIRs by each objective function.

    Abstract translation: 用于设计用于耳机虚拟器的双耳室脉冲响应（BRIR）的方法和系统以及响应于多声道音频信号的一组声道产生双耳信号的方法和系统，包括通过将BRIR应用于每个声道 从而产生经滤波的信号，并且组合滤波的信号以产生双耳信号，其中根据设计方法的实施例设计了每个BRIR。 其他方面是被配置为执行本发明方法的任何实施例的音频处理单元。 根据一些实施例，BRIR设计被形成为基于模拟模型（其产生候选BRIR）和至少一个目标函数（其评估每个候选BRIR）的数值优化问题，并且包括识别最佳候选者 BRIR由每个目标函数为候选BRIR确定的性能度量指示。

    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES
    5.
    发明公开
    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES 审中-公开

    公开(公告)号：US20230262409A1

    公开(公告)日：2023-08-17

    申请号：US18106261

    申请日：2023-02-06

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Grant A. DAVIDSON ,  Kuan-Chieh YEN ,  Dirk Jeroen BREEBAART

    IPC: H04S7/00

    CPC classification number: H04S7/304 ,  H04S7/306 ,  H04S2420/01 ,  H04S2400/03 ,  H04S2420/07

    Abstract: Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other aspects are audio processing units configured to perform any embodiment of the inventive method. In accordance with some embodiments, BRIR design is formulated as a numerical optimization problem based on a simulation model (which generates candidate BRIRs) and at least one objective function (which evaluates each candidate BRIR), and includes identification of a best one of the candidate BRIRs as indicated by performance metrics determined for the candidate BRIRs by each objective function.

    Generating Binaural Audio in Response to Multi-Channel Audio Using at Least One Feedback Delay Network
    7.
    发明申请
    Generating Binaural Audio in Response to Multi-Channel Audio Using at Least One Feedback Delay Network 审中-公开

    公开(公告)号：US20190373397A1

    公开(公告)日：2019-12-05

    申请号：US16541079

    申请日：2019-08-14

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Kuan-Chieh YEN ,  Dirk Jeroen BREEBAART ,  Grant A. DAVIDSON ,  Rhonda WILSON ,  David M. Cooper ,  Zhiwei SHUANG

    IPC: H04S7/00 ,  G10L19/008

    Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES
    9.
    发明申请
    METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSES 审中-公开

    公开(公告)号：US20200162835A1

    公开(公告)日：2020-05-21

    申请号：US16749494

    申请日：2020-01-22

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Grant A. DAVIDSON ,  Kuan-Chieh YEN ,  Dirk Jeroen BREEBAART

    IPC: H04S7/00

    Abstract: Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other aspects are audio processing units configured to perform any embodiment of the inventive method. In accordance with some embodiments, BRIR design is formulated as a numerical optimization problem based on a simulation model (which generates candidate BRIRs) and at least one objective function (which evaluates each candidate BRIR), and includes identification of a best one of the candidate BRIRs as indicated by performance metrics determined for the candidate BRIRs by each objective function.

    Multi-Stage Quantization of Parameter Vectors from Disparate Signal Dimensions
    10.
    发明申请
    Multi-Stage Quantization of Parameter Vectors from Disparate Signal Dimensions 审中-公开
    参数矢量的多阶段量化从不同的信号尺寸

    公开(公告)号：US20160133266A1

    公开(公告)日：2016-05-12

    申请号：US14898211

    申请日：2014-06-17

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Vinay MELKOTE ,  Kuan-Chieh YEN ,  Grant A. DAVIDSON

    IPC: G10L19/038 ,  H04N19/94 ,  G10L19/008

    CPC classification number: G10L19/038 ,  G10L19/008 ,  H04N19/94

    Abstract: A first vector quantization process may be applied to two or more parameter values along a first dimension of the N-dimensional parameter set to produce a first set of quantized values. Two or more parameter prediction values may be calculated for a second dimension of the N-dimensional parameter set based, at least in part, on one or more values of the first set of quantized values. Prediction residual values may be calculated based, at least in part, on the parameter prediction values. A second vector quantization process may be applied to the prediction residual values to produce a second set of quantized values. These processes may be extended to any number of dimensions. Corresponding inverse vector quantization processes may be performed.

    Abstract translation: 第一矢量量化处理可以沿着N维参数集的第一维应用于两个或更多个参数值，以产生第一组量化值。 可以至少部分地基于第一组量化值的一个或多个值来计算N维参数集的第二维度的两个或更多个参数预测值。 可以至少部分地基于参数预测值来计算预测残差值。 可以将第二矢量量化处理应用于预测残差值以产生第二组量化值。 这些过程可以扩展到任何数量的维度。 可以执行相应的逆矢量量化处理。

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