公开(公告)号：US20160192105A1

公开(公告)日：2016-06-30

申请号：US14909058

申请日：2014-07-24

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Dirk Jeroen BREEBAART ,  Lie LU ,  Nicolas R. TSINGOS ,  Antonio MATEOS SOLE

IPC: H04S7/00 ,  G10L19/018

CPC classification number: H04S7/308 ,  G10L19/00 ,  G10L19/008 ,  G10L19/018 ,  G10L19/20 ,  H04S3/002 ,  H04S2400/11 ,  H04S2400/13 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/07

Abstract: Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker locations. The output of such a rendering process may be input to a scene simplification process. The decorrelation, associating and/or scene simplification processes may be performed prior to a process of encoding the audio data.

Abstract translation: 漫射或空间较大的音频对象可能被识别用于特殊处理。 可以对与大音频对象相对应的音频信号执行去相关处理，以产生解相关的大音频对象音频信号。 这些去相关的大音频对象音频信号可以与对象位置相关联，其可以是静止的或时变的位置。 例如，解相关的大音频对象音频信号可以呈现为虚拟或实际的扬声器位置。 这样的渲染处理的输出可以被输入到场景简化处理。 可以在对音频数据进行编码的处理之前执行去相关，关联和/或场景简化处理。

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。