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31. 发明申请

US20160219391A1 LOUDNESS ADJUSTMENT FOR DOWNMIXED AUDIO CONTENT 有权
标题翻译：下载音频内容的LOUDNESS调整
公开(公告)号：US20160219391A1
公开(公告)日：2016-07-28
申请号：US15091373
申请日：2016-04-05
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Michael WARD , Jeffrey RIEDMILLER , Scott Gregory NORCROSS , Alexander GROESCHEL
IPC分类号： H04S7/00 , H04S1/00
CPC分类号： H04S7/30 , G10L19/008 , G10L21/0324 , H04S1/002 , H04S1/007 , H04S2400/03 , H04S2400/13
摘要： Disclosed is a non-transitory computer readable storage medium which receives, by an audio decoder (operating in a specific playback environment different from a reference channel configuration), an audio signal for the reference channel configuration. The audio signal includes audio sample data and encoder-generated loudness metadata which includes a plurality of portions of loudness metadata for a plurality of playback environments. The plurality of portions of loudness metadata includes one or more respective portions of loudness metadata for each playback environment in the plurality of playback environments. The medium also selects one or more portions of specific loudness metadata (based on the specific playback environment), from among the plurality of portions of loudness metadata for the plurality of playback environments. The one or more portions of specific loudness metadata relating to the specific playback environment determine loudness adjustment gains from the one or more portions of specific loudness metadata for the specific playback environment, apply the loudness adjustment gains as a part of overall gains applied to the audio sample data to generate output audio data.
摘要翻译：公开了一种非暂时性计算机可读存储介质，其通过音频解码器（在特定播放环境中操作而不同于参考频道配置）接收用于参考频道配置的音频信号。音频信号包括音频采样数据和编码器生成的响度元数据，其包括用于多个回放环境的响度元数据的多个部分。响度元数据的多个部分包括多个回放环境中每个回放环境的响度元数据的一个或多个相应部分。介质还从多个播放环境的响度元数据的多个部分中选择特定响度元数据的一个或多个部分（基于特定播放环境）。与特定播放环境相关的特定响度元数据的一个或多个部分确定来自特定播放环境的特定响度元数据的一个或多个部分的响度调节增益，将响度调整增益应用为应用于音频的总体增益的一部分采样数据生成输出音频数据。

32. 发明申请

US20160219390A1 LOUDNESS ADJUSTMENT FOR DOWNMIXED AUDIO CONTENT 有权
标题翻译：下载音频内容的LOUDNESS调整
公开(公告)号：US20160219390A1
公开(公告)日：2016-07-28
申请号：US15091366
申请日：2016-04-05
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Michael WARD , Jeffrey RIEDMILLER , Scott Gregory NORCROSS , Alexander GROESCHEL
IPC分类号： H04S7/00 , H04S1/00
CPC分类号： H04S7/30 , G10L19/008 , G10L21/0324 , H04S1/002 , H04S1/007 , H04S2400/03 , H04S2400/13
摘要： Audio content coded for a reference speaker configuration is downmixed to downmix audio content coded for a specific speaker configuration. One or more gain adjustments are performed on individual portions of the downmix audio content coded for the specific speaker configuration. Loudness measurements are then performed on the individual portions of the downmix audio content. An audio signal that comprises the audio content coded for the reference speaker configuration and downmix loudness metadata is generated. The downmix loudness metadata is created based at least in part on the loudness measurements on the individual portions of the downmix audio content.
摘要翻译：针对参考扬声器配置编码的音频内容被下混合以下混合针对特定扬声器配置编码的音频内容。在针对特定扬声器配置编码的下混音频内容的各个部分上执行一个或多个增益调整。然后对缩混音频内容的各个部分执行响度测量。产生包括为参考扬声器配置编码的音频内容和降混响度元数据的音频信号。至少部分地基于对混音音频内容的各个部分的响度测量来创建缩混响度元数据。

33. 发明申请

US20160197590A1 DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS 审中-公开
公开(公告)号：US20160197590A1
公开(公告)日：2016-07-07
申请号：US14916509
申请日：2014-09-08
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeroen KOPPENS , Jeffrey RIEDMILLER , Kristofer KJOERLING , Alexander GROESCHEL , Holger HOERICH , Alan J. SEEFELDT
IPC分类号： H03G3/30 , H03G7/00 , H03G9/12 , G10L19/16
CPC分类号： G06F3/165 , G10L19/167 , G10L21/0324 , H03G3/3005 , H03G3/3089 , H03G7/002 , H03G7/007 , H03G9/005 , H03G9/12 , H04S1/00 , H04S7/30 , H04S2400/13
摘要： In an audio encoder, for audio content received in a source audio format, default gains are generated based on a default dynamic range compression (DRC) curve, and non-default gains are generated for a non-default gain profile. Based on the default gains and non-default gains, differential gains are generated. An audio signal comprising the audio content, the default DRC curve, and differential gains is generated. In an audio decoder, the default DRC curve and the differential gains are identified from the audio signal. Default gains are re-generated based on the default DRC curve. Based on the combination of the re-generated default gains and the differential gains, operations are performed on the audio content extracted from the audio signal.

34. 发明申请

US20160029140A1 METHODS AND SYSTEMS FOR GENERATING AND INTERACTIVELY RENDERING OBJECT BASED AUDIO 有权
标题翻译：用于生成和交互式呈现对象的音频的方法和系统
公开(公告)号：US20160029140A1
公开(公告)日：2016-01-28
申请号：US14781562
申请日：2014-04-03
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Sripal S. MEHTA , Thomas ZIEGLER , Giles BAKER , Jeffrey RIEDMILLER , Prinyar SAUNGSOMBOON
IPC分类号： H04S7/00 , H04S3/00 , G10L19/008
CPC分类号： G10L19/008 , G06F3/165 , G10L19/167 , G10L19/20 , H04S3/008 , H04S7/30 , H04S2400/01 , H04S2400/13 , H04S2400/15 , H04S2420/03
摘要： Methods for generating an object based audio program, renderable in a personalizable manner, and including a bed of speaker channels renderable in the absence of selection of other program content (e.g., to provide a default full range audio experience). Other embodiments include steps of delivering, decoding, and/or rendering such a program. Rendering of content of the bed, or of a selected mix of other content of the program, may provide an immersive experience. The program may include multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects), the bed of speaker channels, and other speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
摘要翻译：用于生成基于对象的音频节目的方法，以可个性化的方式呈现，并且包括在没有选择其他节目内容（例如，提供默认的全范围音频体验）的情况下呈现的扬声器频道床。其他实施例包括递送，解码和/或呈现这样的程序的步骤。床的内容的渲染或者其他节目内容的混合，可以提供沉浸式体验。程序可以包括多个对象通道（例如，指示用户可选择的用户可配置对象的对象通道），扬声器通道的床以及其他扬声器通道。另一方面是被配置为执行或包括缓冲存储器的音频处理单元（例如，编码器或解码器），该缓冲存储器存储根据以下步骤生成的基于对象的音频节目（或其比特流）的至少一个帧（或其他片段），方法的任何实施例。

35. 发明申请

US20150363160A1 System and Method for Optimizing Loudness and Dynamic Range Across Different Playback Devices 有权
标题翻译：用于优化不同播放设备的响度和动态范围的系统和方法
公开(公告)号：US20150363160A1
公开(公告)日：2015-12-17
申请号：US14761888
申请日：2014-01-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeffrey RIEDMILLER , Scott Gregory NORCROSS , Karl Jonas ROEDEN
IPC分类号： G06F3/16 , H04R29/00
CPC分类号： G06F3/165 , H03G9/005 , H04R29/00
摘要： Embodiments are directed to a method and system for receiving, in a bitstream, metadata associated with the audio data, and analyzing the metadata to determine whether a loudness parameter for a first group of audio playback devices are available in the bitstream. Responsive to determining that the parameters are present for the first group, the system uses the parameters and audio data to render audio. Responsive to determining that the loudness parameters are not present for the first group, the system analyzes one or more characteristics of the first group, and determines the parameter based on the one or more characteristics.
摘要翻译：实施例涉及一种用于在比特流中接收与音频数据相关联的元数据以及分析元数据以确定第一组音频回放设备的响度参数在比特流中是否可用的方法和系统。响应于确定第一组的参数存在，系统使用参数和音频数据来呈现音频。响应于确定第一组不存在响度参数，系统分析第一组的一个或多个特性，并且基于一个或多个特性来确定参数。

36. 发明公开

US20240056649A1 MULTISOURCE MEDIA DELIVERY SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20240056649A1
公开(公告)日：2024-02-15
申请号：US18256987
申请日：2021-12-16
申请人： Dolby Laboratories Licensing Corporation
发明人： Jeffrey RIEDMILLER , Mingchao YU , Jason Michael CLOUD
IPC分类号： H04N21/60 , H04N21/2183
CPC分类号： H04N21/60 , H04N21/2183
摘要： A method for delivering media content to one or more clients over a distributed system is disclosed. The method may include generating a plurality of network-coded symbols from a plurality of original symbols representing a first media asset. The method may further include generating an original plurality of coded variants of the first media asset. The method may further include distributing a first coded variant of the original plurality of coded variants to a first cache on a first server device for storage in the first cache. The method may further include distributing a second coded variant of the original plurality of coded variants to a second cache on a second server device for storage in the second cache.

37. 发明申请

US20180034429A1 SYSTEM AND METHOD FOR LEVELING LOUDNESS VARIATION IN AN AUDIO SIGNAL 有权
公开(公告)号：US20180034429A1
公开(公告)日：2018-02-01
申请号：US15718913
申请日：2017-09-28
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Andrew P. REILLY , Michael SMITHERS , Jeffrey RIEDMILLER
IPC分类号： H03G3/20 , H03G7/00
CPC分类号： H03G3/20 , H03G7/002 , H03G7/007
摘要： Systems and methods for leveling loudness variation in an audio signal are described. Embodiments use both a perceptual leveling algorithm and a standards-based loudness measure together to minimize audio process artifacts and ensure that the measured loudness of the processed audio is close to a required measure, according to a particular standard measurement of loudness. These systems and methods can be used either offline or in real-time.

38. 发明申请

US20170221496A1 DECODING OF ENCODED AUDIO BITSTREAM WITH METADATA CONTAINER LOCATED IN RESERVED DATA SPACE 有权
公开(公告)号：US20170221496A1
公开(公告)日：2017-08-03
申请号：US15491661
申请日：2017-04-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Michael GRANT , Scott Gregory NORCROSS , Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , H03G9/00 , G10L19/002
CPC分类号： G10L19/167 , G10L19/002 , G10L19/06 , H03G9/005 , H03G9/025
摘要： Apparatus and methods for generating an encoded audio bitstream, including by including program loudness metadata and audio data in the bitstream, and optionally also program boundary metadata in at least one segment (e.g., frame) of the bitstream. Other aspects are apparatus and methods for decoding such a bitstream, e.g., including by performing adaptive loudness processing of the audio data of an audio program indicated by the bitstream, or authentication and/or validation of metadata and/or audio data of such an audio program. Another aspect is an audio processing unit (e.g., an encoder, decoder, or post-processor) configured (e.g., programmed) to perform any embodiment of the method or which includes a buffer memory which stores at least one frame of an audio bitstream generated in accordance with any embodiment of the method.

39. 发明申请

US20160196830A1 AUDIO ENCODER AND DECODER WITH PROGRAM INFORMATION OR SUBSTREAM STRUCTURE METADATA 审中-公开
公开(公告)号：US20160196830A1
公开(公告)日：2016-07-07
申请号：US14770375
申请日：2014-06-12
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , G10L19/22 , G10L19/018
CPC分类号： G10L19/167 , G10L19/008 , G10L19/018 , G10L19/22
摘要： Apparatus and methods for generating an encoded audio bitstream, including by including substream structure metadata (SSM) and/or program information metadata (PIM) and audio data in the bitstream. Other aspects are apparatus and methods for decoding such a bitstream, and an audio processing unit (e.g., an encoder, decoder, or post-processor) configured (e.g., programmed) to perform any embodiment of the method or which includes a buffer memory which stores at least one frame of an audio bitstream generated in accordance with any embodiment of the method.

40. 发明申请

US20180151188A1 AUDIO ENCODER AND DECODER WITH PROGRAM LOUDNESS AND BOUNDARY METADATA 审中-公开
公开(公告)号：US20180151188A1
公开(公告)日：2018-05-31
申请号：US15877808
申请日：2018-01-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Michael GRANT , Scott Gregory NORCROSS , Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , H03G9/02 , G10L19/002 , H03G9/00
摘要： Apparatus and methods for generating an encoded audio bitstream, including by including program loudness metadata and audio data in the bitstream, and optionally also program boundary metadata in at least one segment (e.g., frame) of the bitstream. Other aspects are apparatus and methods for decoding such a bitstream, e.g., including by performing adaptive loudness processing of the audio data of an audio program indicated by the bitstream, or authentication and/or validation of metadata and/or audio data of such an audio program. Another aspect is an audio processing unit (e.g., an encoder, decoder, or post-processor) configured (e.g., programmed) to perform any embodiment of the method or which includes a buffer memory which stores at least one frame of an audio bitstream generated in accordance with any embodiment of the method.

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