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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

US20170048639A1 Matrix Decomposition for Rendering Adaptive Audio Using High Definition Audio Codecs 有权
标题翻译：使用高清音频编解码器渲染自适应音频的矩阵分解
公开(公告)号：US20170048639A1
公开(公告)日：2017-02-16
申请号：US15306454
申请日：2015-04-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Vinay MELKOTE , Malcolm James LAW
IPC分类号： H04S3/02 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , H04S2400/03 , H04S2400/11
摘要： A method of decomposing a matrix of dimension L-by-N, where L is less than or equal to N, into a sequence of N-by-N unit primitive matrices and a permutation matrix comprising a sequence that is the product of the primitive matrices and the permutation matrix, containing L rows that are substantially close to the provided L-by-N matrix, where the choice of the permutation matrix and the indices of the non-trivial rows in the primitive matrices are chosen to limit the coefficient values in the primitive matrices.
摘要翻译：将L尺寸小于或等于N的尺寸为L-by-N的矩阵分解成N×N单位原始矩阵的序列和包括作为原语的乘积的序列的置换矩阵的方法矩阵和排列矩阵，其包含基本上接近所提供的L乘N矩阵的L行，其中选择基本矩阵中的排列矩阵和非平凡行的索引以限制系数值在原始矩阵中。

3. 发明公开

US20240018844A1 SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS 审中-公开
公开(公告)号：US20240018844A1
公开(公告)日：2024-01-18
申请号：US18355168
申请日：2023-07-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeffrey RIEDMILLER , Karl J. ROEDEN , Kristofer KJOERLING , Heiko PURNHAGEN , Vinay MELKOTE , Leif SEHLSTROM
IPC分类号： E21B33/138 , E21B41/00 , E21B21/00 , G10L19/008 , G10L19/16 , G10L19/18 , G10L19/24
CPC分类号： E21B33/138 , E21B41/00 , E21B21/003 , G10L19/008 , G10L19/167 , G10L19/18 , G10L19/24
摘要： On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (a) from the bitstream, where 1≤m

4. 发明申请

US20180122384A1 AUDIO ENCODING AND RENDERING WITH DISCONTINUITY COMPENSATION 审中-公开
公开(公告)号：US20180122384A1
公开(公告)日：2018-05-03
申请号：US15566200
申请日：2016-04-14
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Vinay MELKOTE , David S. MCGRATH
IPC分类号： G10L19/008 , H04S3/00 , G10L19/00
CPC分类号： G10L19/008 , G10L19/0017 , H04S3/008 , H04S2400/01 , H04S2400/11
摘要： Methods for generating encoded audio programs indicative of N channels of discontinuity-corrected, encoded audio content, including by applying discontinuity correction values to multi-channel audio content, and for rendering such a program (e.g., to generate a discontinuity-corrected M-channel mix of content indicated by the program). Other aspects are systems or devices (e.g., encoders or decoders, or rendering systems) configured to implement any of the methods.

5. 发明申请

US20170309286A1 SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS 有权
公开(公告)号：US20170309286A1
公开(公告)日：2017-10-26
申请号：US15648733
申请日：2017-07-13
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeffrey RIEDMILLER , Karl J. ROEDEN , Kristofer KJOERLING , Heiko PURNHAGEN , Vinay MELKOTE , Leif SEHLSTROM
IPC分类号： G10L19/24 , G10L19/008 , G10L19/16 , G10L19/18
CPC分类号： G10L19/24 , G10L19/008 , G10L19/167 , G10L19/18
摘要： On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (α) from the bitstream, where 1≦m

6. 发明申请

US20170047071A1 Audio Segmentation Based on Spatial Metadata 审中-公开
标题翻译：基于空间元数据的音频分割
公开(公告)号：US20170047071A1
公开(公告)日：2017-02-16
申请号：US15306051
申请日：2015-04-23
申请人： Dolby Laboratories Licensing Corporation
发明人： Vinay MELKOTE , Malcolm James LAW , Roy M. FEJGIN
IPC分类号： G10L19/00 , G10L19/20 , G10L19/008
CPC分类号： G10L19/0017 , G10L19/008 , G10L19/167 , G10L19/20 , H04S2400/11
摘要： A method of encoding adaptive audio, comprising receiving N objects and associated spatial metadata that describes the continuing motion of these objects, and partitioning the audio into segments based on the spatial metadata. The method encodes adaptive audio having objects and channel beds by capturing a continuing motion of a number N objects in a time-varying matrix trajectory comprising a sequence of matrices, coding coefficients of the time-varying matrix trajectory in spatial metadata to be transmitted via a high-definition audio format for rendering the adaptive audio through a number M output channels, and segmenting the sequence of matrices into a plurality of sub-segments based on the spatial metadata, wherein the plurality of sub segments are configured to facilitate coding of one or more characteristics of the adaptive audio.
摘要翻译：一种编码自适应音频的方法，包括接收N个对象和描述这些对象的持续运动的相关联的空间元数据，以及基于空间元数据将音频分割成段。该方法通过捕获包括矩阵序列的时变矩阵轨迹中的N个对象的持续运动来编码具有对象和信道床的自适应音频，将空间元数据中的时变矩阵轨迹的编码系数经由高清晰度音频格式，用于通过M个输出通道渲染自适应音频，以及基于空间元数据将矩阵序列分割成多个子段，其中多个子段被配置为便于编码一个或多个更多特点的自适应音频。

7. 发明申请

US20150380000A1 Signal Decorrelation in an Audio Processing System 有权
标题翻译：音频处理系统中的信号解相关
公开(公告)号：US20150380000A1
公开(公告)日：2015-12-31
申请号：US14766371
申请日：2014-01-22
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Vinay MELKOTE , Kuan-Chieh YEN , Grant A. DAVIDSON , Matthew FELLERS , Mark S. VINTON , Vivek KUMAR
IPC分类号： G10L19/008 , G10L19/06 , H04S3/00 , G10L25/06
CPC分类号： G10L19/008 , G10L19/02 , G10L19/06 , G10L25/06 , H04S3/008 , H04S5/00
摘要： Audio processing methods may involve receiving audio data corresponding to a plurality of audio channels. The audio data may include a frequency domain representation corresponding to filterbank coefficients of an audio encoding or processing system. A decorrelation process may be performed with the same filterbank coefficients used by the audio encoding or processing system. The decorrelation process may be performed without converting coefficients of the frequency domain representation to another frequency domain or time domain representation. The decorrelation process may involve selective or signal-adaptive decorrelation of specific channels and/or specific frequency bands. The decorrelation process may involve applying a decorrelation filter to a portion of the received audio data to produce filtered audio data. The decorrelation process may involve using a non-hierarchal mixer to combine a direct portion of the received audio data with the filtered audio data according to spatial parameters.
摘要翻译：音频处理方法可以涉及接收对应于多个音频频道的音频数据。音频数据可以包括对应于音频编码或处理系统的滤波器组系数的频域表示。解相关处理可以用音频编码或处理系统使用的相同的滤波器组系数执行。可以在不将频域表示的系数转换到另一频域或时域表示的情况下执行去相关处理。解相关过程可以涉及特定信道和/或特定频带的选择性或信号自适应去相关。解相关过程可以包括将去相关滤波器应用于所接收的音频数据的一部分以产生滤波后的音频数据。去相关处理可以包括使用非层级混合器来根据空间参数将接收的音频数据的直接部分与经滤波的音频数据组合。

8. 发明申请

US20180322890A1 SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS 审中-公开
公开(公告)号：US20180322890A1
公开(公告)日：2018-11-08
申请号：US16039608
申请日：2018-07-19
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeffrey RIEDMILLER , Karl J. ROEDEN , Kristofer KJOERLING , Heiko PURNHAGEN , Vinay MELKOTE , Leif SEHLSTROM
IPC分类号： G10L19/24 , G10L19/008 , G10L19/18 , G10L19/16
CPC分类号： G10L19/24 , G10L19/008 , G10L19/167 , G10L19/18
摘要： On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (a) from the bitstream, where 1≤m

9. 发明申请

US20160322061A1 SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS 有权
标题翻译：维护与参数音频编码器相关的可反转动态范围控制信息的系统
公开(公告)号：US20160322061A1
公开(公告)日：2016-11-03
申请号：US15178102
申请日：2016-06-09
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： Jeffrey RIEDMILLER , Karl J. ROEDEN , Kristofer KJOERLING , Heiko PURNHAGEN , Vinay MELKOTE , Leif SEHLSTROM
IPC分类号： G10L19/24 , G10L19/16 , G10L19/008
CPC分类号： G10L19/24 , G10L19/008 , G10L19/167 , G10L19/18
摘要： On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (a) from the bitstream, where 1≦m
摘要翻译：在特定实施例中，重建还包括使用量化潜在解码器侧动态范围压缩的补偿后处理DRC参数。编码器侧范围限制和范围压缩的取消优选地由不同的解码器侧组件执行。取消和压缩可以由DRC预处理器来协调。

10. 发明申请

US20160241981A1 RENDERING OF MULTICHANNEL AUDIO USING INTERPOLATED MATRICES 有权
标题翻译：使用插值矩阵渲染多通道音频
公开(公告)号：US20160241981A1
公开(公告)日：2016-08-18
申请号：US15024925
申请日：2014-09-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Malcolm James LAW , Vinay MELKOTE , Rhonda WILSON , Simon PLAIN , ANDY JASPAR
IPC分类号： H04S3/02 , G10L19/24 , G10L19/018 , G10L19/008
CPC分类号： H04S3/02 , G10L19/008 , G10L19/018 , G10L19/24 , H04S2400/03
摘要： Methods which uses interpolated primitive matrices to decode encoded audio to recover (losslessly) content of a multichannel audio program and/or to recover at least one downmix of such content, and encoding methods for generating such encoded audio. In some embodiments, a decoder performs interpolation on a set of seed primitive matrices to determine interpolated matrices for use in rendering channels of the program. Other aspects are a system or device configured to implement any embodiment of the method.
摘要翻译：使用内插原语矩阵来解码编码音频以恢复（无损耗）多声道音频节目的内容和/或恢复这样的内容的至少一个缩混的方法，以及用于生成这种编码音频的编码方法。在一些实施例中，解码器对一组种子基元矩阵执行插值，以确定用于呈现节目的频道的内插矩阵。其他方面是被配置为实现该方法的任何实施例的系统或设备。

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