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    Object Clustering for Rendering Object-Based Audio Content Based on Perceptual Criteria
    13.
    发明申请
    Object Clustering for Rendering Object-Based Audio Content Based on Perceptual Criteria 有权
    基于感知标准渲染基于对象的音频内容的对象聚类

    公开(公告)号：US20150332680A1

    公开(公告)日：2015-11-19

    申请号：US14654460

    申请日：2013-11-25

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Brett G. CROCKETT ,  Alan J. SEEFELDT ,  Nicolas R. TSINGOS ,  Rhonda WILSON ,  Dirk Jeroen BREEBAART ,  Lie LU ,  Lianwu CHEN

    IPC: G10L19/008 ,  G10L19/02 ,  H04S7/00 ,  G10L25/18

    CPC classification number: G10L19/008 ,  G10L19/02 ,  G10L19/20 ,  G10L25/18 ,  H04S7/30 ,  H04S2400/13 ,  H04S2420/03

    Abstract: Embodiments are directed a method of rendering object-based audio comprising determining an initial spatial position of objects having object audio data and associated metadata, determining a perceptual importance of the objects, and grouping the audio objects into a number of clusters based on the determined perceptual importance of the objects, such that a spatial error caused by moving an object from an initial spatial position to a second spatial position in a cluster is minimized for objects with a relatively high perceptual importance. The perceptual importance is based at least in part by a partial loudness of an object and content semantics of the object.

    Abstract translation: 实施例涉及一种渲染基于对象的音频的方法，包括：确定具有对象音频数据和相关元数据的对象的初始空间位置，确定对象的感知重要性，以及基于所确定的知觉，将音频对象分组成多个聚类 使得通过将对象从群集中的初始空间位置移动到第二空间位置而引起的空间误差最小化为具有相对高感知重要性的对象的对象的重要性。 感知重要性至少部分地基于对象的部分响度和对象的内容语义。

    Generating Binaural Audio in Response to Multi-Channel Audio Using at Least One Feedback Delay Network
    20.
    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。

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