公开(公告)号：US20170206912A1

公开(公告)日：2017-07-20

申请号：US15478049

申请日：2017-04-03

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Michael GRANT ,  Scott Gregory NORCROSS ,  Jeffrey RIEDMILLER ,  Michael WARD

IPC: G10L19/16 ,  G10L19/002

CPC classification number: G10L19/167 ,  G10L19/002 ,  G10L19/06 ,  H03G9/005 ,  H03G9/025

Abstract: 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.

公开(公告)号：US20150372820A1

公开(公告)日：2015-12-24

申请号：US14761892

申请日：2014-01-15

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Andreas SCHNEIDER ,  Christof FERSCH ,  Martin WOLTERS ,  Jeffrey RIEDMILLER ,  Scott Gregory NORCROSS ,  Michael GRANT

IPC: H04L9/32 ,  H04N19/40 ,  G10L19/16

CPC classification number: H04L9/3242 ,  G10L19/173 ,  H04H60/73 ,  H04L65/4084 ,  H04L65/605 ,  H04L65/607 ,  H04N19/40 ,  H04N21/2355 ,  H04N21/4355

Abstract: The present document relates to transcoding of metadata, and in particular to a method and system for transcoding metadata with reduced computational complexity. A transcoder configured to transcode an inbound bitstream comprising an inbound content frame and an associated inbound metadata frame into an outbound bitstream comprising an outbound content frame and an associated outbound metadata frame is described. The inbound content frame is indicative of a signal encoded according to a first codec system and the outbound content frame is indicative of the signal encoded according to a second codec system. The transcoder is configured to identify an inbound block of metadata from the inbound metadata frame, the inbound block of metadata associated with an inbound descriptor indicative of one or more properties of metadata comprised within the inbound block of metadata, and to generate the outbound metadata frame from the inbound metadata frame based on the inbound descriptor.

Abstract translation: 本文件涉及元数据的转码，特别涉及用于以降低的计算复杂度对元数据进行代码转换的方法和系统。 被配置为将包括入站内容帧和相关联的入站元数据帧的入站比特流转码为包括出站内容帧和相关联的出站元数据帧的出站比特流的代码转换器。 入站内容帧指示根据第一编解码器系统编码的信号，并且出站内容帧指示根据第二编解码器系统编码的信号。 代码转换器被配置为从入站元数据帧中识别元数据的入站块，与入站描述符的入站数据块相关联，该入站描述符指示包含在入站元数据块内的元数据的一个或多个属性，并且生成出站元数据帧 基于入站描述符的入站元数据帧。

公开(公告)号：US20150325243A1

公开(公告)日：2015-11-12

申请号：US14434528

申请日：2014-01-15

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Michael GRANT ,  Scott Gregory NORCROSS ,  Jeffrey RIEDMILLER ,  Michael WARD

IPC: G10L19/002

CPC classification number: G10L19/167 ,  G10L19/002 ,  G10L19/06 ,  H03G9/005 ,  H03G9/025

Abstract: 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.

Abstract translation: 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。