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1. 发明申请

US20180218749A1 AUDIO DISCONTINUITY DETECTION AND CORRECTION 审中-公开
公开(公告)号：US20180218749A1
公开(公告)日：2018-08-02
申请号：US15745824
申请日：2016-07-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Roy M. FEJGIN , Freddie SANCHEZ , Vinay MELKOTE , Michael WARD
IPC分类号： G10L25/48 , G10L25/18 , G11B27/034 , G11B27/10 , G11B27/038
CPC分类号： G10L25/48 , G10L25/18 , G11B27/034 , G11B27/038 , G11B27/105 , G11B2220/2541
摘要： Methods for detecting whether a rendered version of a specified seamless connection (“SSC”) at a connection point between two audio segment sequences results in an audible discontinuity, and methods for analyzing at least one SSC between audio segment sequences to determine whether a renderable version of each SSC would have an audible discontinuity at the connection point when rendered, and in appropriate cases, for a SSC having a renderable version which is determined to have an audible discontinuity when rendered, correcting at least one audio segment of at least one segment sequence to be connected in accordance with the SSC in an effort to ensure that rendering of the SSC will result in seamless connection without an audible discontinuity. Other aspects are editing systems configured to implement any of the methods, and storage media and rendering systems which store audio data generated in accordance with any of the methods.

2. 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.

3. 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.

4. 发明申请

US20230023024A1 AUDIO ENCODER AND DECODER WITH DYNAMIC RANGE COMPRESSION METADATA 有权
公开(公告)号：US20230023024A1
公开(公告)日：2023-01-26
申请号：US17878410
申请日：2022-08-01
申请人： Dolby Laboratories Licensing Corporation
发明人： Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , G10L19/018 , G10L19/22 , G10L19/008
摘要： An audio processing unit (APU) is disclosed. The APU includes a buffer memory configured to store at least one frame of an encoded audio bitstream, where the encoded audio bitstream includes audio data and a metadata container. The metadata container includes a header and one or more metadata payloads after the header. The one or more metadata payloads include dynamic range compression (DRC) metadata, and the DRC metadata is or includes profile metadata indicative of whether the DRC metadata includes dynamic range compression (DRC) control values for use in performing dynamic range compression in accordance with at least one compression profile on audio content indicated by at least one block of the audio data.

5. 发明申请

US20180012610A1 AUDIO ENCODER AND DECODER WITH DYNAMIC RANGE COMPRESSION METADATA 审中-公开
公开(公告)号：US20180012610A1
公开(公告)日：2018-01-11
申请号：US15694568
申请日：2017-09-01
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , G10L19/008 , G10L19/018 , G10L19/22
CPC分类号： G10L19/167 , G10L19/008 , G10L19/018 , G10L19/22
摘要： An audio processing unit (APU) is disclosed. The APU includes a buffer memory configured to store at least one frame of an encoded audio bitstream, where the encoded audio bitstream includes audio data and a metadata container. The metadata container includes a header and one or more metadata payloads after the header. The one or more metadata payloads include dynamic range compression (DRC) metadata, and the DRC metadata is or includes profile metadata indicative of whether the DRC metadata includes dynamic range compression (DRC) control values for use in performing dynamic range compression in accordance with at least one compression profile on audio content indicated by at least one block of the audio data.

6. 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。

7. 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。

8. 发明公开

US20240153515A1 AUDIO ENCODER AND DECODER WITH DYNAMIC RANGE COMPRESSION METADATA 审中-公开
公开(公告)号：US20240153515A1
公开(公告)日：2024-05-09
申请号：US18511495
申请日：2023-11-16
申请人： Dolby Laboratories Licensing Corporation
发明人： Jeffrey RIEDMILLER , Michael WARD
IPC分类号： G10L19/16 , G10L19/008 , G10L19/018 , G10L19/22
CPC分类号： G10L19/167 , G10L19/008 , G10L19/018 , G10L19/22
摘要： An audio processing unit (APU) is disclosed. The APU includes a buffer memory configured to store at least one frame of an encoded audio bitstream, where the encoded audio bitstream includes audio data and a metadata container. The metadata container includes a header and one or more metadata payloads after the header. The one or more metadata payloads include dynamic range compression (DRC) metadata, and the DRC metadata is or includes profile metadata indicative of whether the DRC metadata includes dynamic range compression (DRC) control values for use in performing dynamic range compression in accordance with at least one compression profile on audio content indicated by at least one block of the audio data.

9. 发明申请

US20170206912A1 AUDIO ENCODER AND DECODER WITH PROGRAM LOUDNESS AND BOUNDARY METADATA 有权
公开(公告)号：US20170206912A1
公开(公告)日：2017-07-20
申请号：US15478049
申请日：2017-04-03
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 , 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.

10. 发明申请

US20150325243A1 AUDIO ENCODER AND DECODER WITH PROGRAM LOUDNESS AND BOUNDARY METADATA 有权
标题翻译：音频编码器和编码器与程序轻松和边界元数据
公开(公告)号：US20150325243A1
公开(公告)日：2015-11-12
申请号：US14434528
申请日：2014-01-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Michael GRANT , Scott Gregory NORCROSS , Jeffrey RIEDMILLER , Michael WARD
IPC分类号： 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.
摘要翻译：用于生成编码音频比特流的装置和方法，包括通过在比特流中包括节目响度元数据和音频数据，以及可选地还包括比特流的至少一个片段（例如，帧）中的节目边界元数据。其他方面是用于对这样的比特流进行解码的装置和方法，例如通过对由比特流指示的音频节目的音频数据进行自适应响度处理，或者对这种音频的元数据和/或音频数据的认证和/或验证程序。另一方面是配置（例如，编程）以执行该方法的任何实施例的音频处理单元（例如，编码器，解码器或后处理器），或者包括存储音频比特流生成的至少一个帧的缓冲存储器根据该方法的任何实施例。

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