公开(公告)号：US20190104376A1

公开(公告)日：2019-04-04

申请号：US16207006

申请日：2018-11-30

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Charles Q. ROBINSON ,  Nicolas R. TSINGOS ,  Christophe CHABANNE

IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00 ,  H04R5/02 ,  H04R27/00 ,  G10L19/20 ,  H04S5/00 ,  H04R5/04

Abstract: Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.

公开(公告)号：US20180109895A1

公开(公告)日：2018-04-19

申请号：US15573129

申请日：2016-05-12

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Remi AUDFRAY ,  Nicolas R. TSINGOS ,  Jurgen W. SCHARPF

IPC: H04S3/00 ,  H04S7/00 ,  H04R27/00

CPC classification number: H04S3/002 ,  H04R27/00 ,  H04R2499/13 ,  H04S7/302 ,  H04S2400/13

Abstract: Audio signals (201) are received. The audio signals include left and right surround channels (206). The audio signals are played back using far-field loudspeakers (101-108, 401-406) distributed around a space (111, 409) having a plurality of listener positions (112, 410). The left and right surround channels are played back by a pair of far-field loudspeakers (103, 106, 403, 405) arranged at opposite sides of the space having the plurality of listener positions. An audio component (208) coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers (109, 110, 407, 408) arranged at one of the listener positions. Associated systems (100, 400), methods (800) and computer program products are provided. Systems (300), methods (900) and computer program products providing a bitstream (303) comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data (700) representing such audio content.

公开(公告)号：US20170339506A1

公开(公告)日：2017-11-23

申请号：US15535398

申请日：2015-12-10

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Lianwu CHEN ,  Lie LU ,  Nicolas R. TSINGOS

IPC: H04S3/00

CPC classification number: H04S3/008 ,  G06K9/6226 ,  H04S7/30 ,  H04S2400/01 ,  H04S2400/09 ,  H04S2400/11 ,  H04S2420/03

Abstract: Example embodiments disclosed herein relate to audio object clustering. A method for metadata-preserved audio object clustering is disclosed. The method comprises classifying a plurality of audio objects into a number of categories based on information to be preserved in metadata associated with the plurality of audio objects. The method further comprises assigning a predetermined number of clusters to the categories and allocating an audio object in each of the categories to at least one of the clusters according to the assigning. Corresponding system and computer program product are also disclosed.

公开(公告)号：US20160286333A1

公开(公告)日：2016-09-29

申请号：US15035738

申请日：2014-11-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Charles Q. ROBINSON ,  Nicolas R. TSINGOS ,  Freddie SANCHEZ

IPC: H04S7/00 ,  H04R3/12 ,  H04S3/00

CPC classification number: H04S7/308 ,  G11B2020/10601 ,  H04R3/12 ,  H04S3/008 ,  H04S2400/11

Abstract: In some embodiments, methods for generating an object based audio program including screen-related metadata indicative of at least one warping degree parameter for at least one audio object, or generating a speaker channel-based program including by warping audio content of an object based audio program to a degree determined at least in part by at least one warping degree parameter, or methods for decoding or rendering any such audio program. Other aspects are systems configured to perform such audio signal generation, decoding, or rendering, and audio processing units (e.g., decoders or encoders) including a buffer memory which stores at least one segment of any such audio program.

Abstract translation: 在一些实施例中，用于生成基于对象的音频节目的方法包括指示至少一个音频对象的至少一个扭曲度参数的屏幕相关元数据，或者通过对基于对象的音频的音频内容进行扭曲来生成基于扬声器通道的程序 至少部分地由至少一个翘曲度参数确定的程度，或用于解码或呈现任何这样的音频节目的方法。 其他方面是被配置为执行这样的音频信号生成，解码或呈现的系统以及包括存储任何这样的音频节目的至少一个段的缓冲存储器的音频处理单元（例如，解码器或编码器）。

公开(公告)号：US20160266865A1

公开(公告)日：2016-09-15

申请号：US15031953

申请日：2014-10-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Nicolas R. TSINGOS ,  Rhonda WILSON ,  Sunil BHARITKAR ,  C. Phillip BROWN ,  Alan J. SEEFELDT ,  Remi AUDFRAY

IPC: G06F3/16 ,  H04R5/04 ,  H04S1/00

CPC classification number: G06F3/162 ,  G06F3/04842 ,  H04R5/04 ,  H04S1/007 ,  H04S7/304 ,  H04S7/306 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2420/01

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160037280A1

公开(公告)日：2016-02-04

申请号：US14879621

申请日：2015-10-09

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Nicolas R. TSINGOS ,  Charles Q. ROBINSON ,  Jurgen W. SCHARPF

IPC: H04S5/00

CPC classification number: H04S7/307 ,  H04R5/02 ,  H04S3/00 ,  H04S3/008 ,  H04S5/00 ,  H04S7/308 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/11

Abstract: Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment.

Abstract translation: 提供了改进的创作和渲染音频再现数据的工具。 一些这样的创作工具允许音频再现数据被广泛用于各种各样的再现环境。 音频再现数据可以通过为音频对象创建元数据来创作。 可以参考扬声器区域来创建元数据。 在渲染处理期间，可以根据特定再现环境的再现扬声器布局再现音频再现数据。