专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2015164572A1 AUDIO SEGMENTATION BASED ON SPATIAL METADATA 审中-公开
标题翻译：基于空间元音的音频分段
公开(公告)号：WO2015164572A1
公开(公告)日：2015-10-29
申请号：PCT/US2015/027234
申请日：2015-04-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MELKOTE, Vinay , LAW, Malcolm J. , FEJGIN, Roy M.
IPC分类号： 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。该方法通过在包括矩阵序列的时变矩阵轨迹中捕获数个N个对象的连续运动来编码具有对象和信道床的自适应音频，在空间元数据中编码时间变化矩阵轨迹的系数，以经由高清晰度音频格式，用于通过M个输出通道呈现自适应音频，并且基于空间元数据将矩阵序列分段成多个子段，其中多个子段被配置为便于编码一个或更多的自适应音频特性。

2. 发明申请

WO2014126683A1 AUDIO SIGNAL ENHANCEMENT USING ESTIMATED SPATIAL PARAMETERS 审中-公开
标题翻译：使用估计空间参数的音频信号增强
公开(公告)号：WO2014126683A1
公开(公告)日：2014-08-21
申请号：PCT/US2014/012457
申请日：2014-01-22
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： FELLERS, Matthew , MELKOTE, Vinay , YEN, Kuan-Chieh , DAVIDSON, Grant A. , DAVIS, Mark F.
IPC分类号： G10L19/008 , G10L19/02
CPC分类号： G10L19/008 , G10L19/012 , G10L19/0204 , G10L25/06 , G10L25/18
摘要： Received audio data may include a first set of frequency coefficients and a second set of frequency coefficients. Spatial parameters for at least part of the second set of frequency coefficients may be estimated, based at least in part on the first set of frequency coefficients. The estimated spatial parameters may be applied to the second set of frequency coefficients to generate a modified second set of frequency coefficients. The first set of frequency coefficients may correspond to a first frequency range (for example, an individual channel frequency range) and the second set of frequency coefficients may correspond to a second frequency range (for example, a coupled channel frequency range). Combined frequency coefficients of a composite coupling channel may be based on frequency coefficients of two or more channels. Cross-correlation coefficients, between frequency coefficients of a first channel and the combined frequency coefficients, may be computed.
摘要翻译：接收的音频数据可以包括第一组频率系数和第二组频率系数。可以至少部分地基于第一组频率系数来估计第二组频率系数的至少一部分的空间参数。估计的空间参数可以应用于第二组频率系数，以产生经修改的第二组频率系数。第一组频率系数可以对应于第一频率范围（例如，单个信道频率范围），并且第二组频率系数可以对应于第二频率范围（例如，耦合的信道频率范围）。复合耦合信道的组合频率系数可以基于两个或更多个信道的频率系数。可以计算第一通道的频率系数与组合频率系数之间的互相关系数。

3. 发明申请

WO2013173080A1 SYSTEM FOR MAINTAINING REVERSIBLE DYNAMIC RANGE CONTROL INFORMATION ASSOCIATED WITH PARAMETRIC AUDIO CODERS 审中-公开
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：WO2013173080A1
公开(公告)日：2013-11-21
申请号：PCT/US2013/039344
申请日：2013-05-02
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： RIEDMILLER, Jeffrey , ROEDEN, Karl, J. , KJOERLING, Kristofer , PURNHAGEN, Heiko , MELKOTE, Vinay , SEHLSTROM, Leif
IPC分类号： G10L19/008 , G10L19/18 , H03G7/00 , H03G9/00
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
摘要翻译：基于比特流（P），通过从比特流导出m信道核心信号（Y）和多信道编码参数（α）来重构n信道音频信号（X），其中1 <= m

4. 发明申请

WO2013106098A1 METHOD AND SYSTEM FOR ENCODING AUDIO DATA WITH ADAPTIVE LOW FREQUENCY COMPENSATION 审中-公开
标题翻译：用自适应低频补偿编码音频数据的方法和系统
公开(公告)号：WO2013106098A1
公开(公告)日：2013-07-18
申请号：PCT/US2012/057132
申请日：2012-09-25
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB
发明人： BISWAS, Arijit , MELKOTE, Vinay , SCHUG, Michael , DAVIDSON, Grant A. , VINTON, Mark S.
IPC分类号： G10L19/032 , G10L19/02
CPC分类号： G10L19/028 , G10L19/0204 , G10L19/032 , G10L19/265
摘要： A method for determining mantissa bit allocation of audio data values of frequency domain audio data to be encoded. The allocation method includes a step of determining masking values for the audio data values, including by performing adaptive low frequency compensation on the audio data of each frequency band of a set of low frequency bands of the audio data. The adaptive low frequency compensation includes steps of: performing tonality detection on the audio data to generate compensation control data indicative of whether each frequency band in the set of low frequency bands has prominent tonal content; and performing low frequency compensation on the audio data in each frequency band in the set of low frequency bands having prominent tonal content as indicated by the compensation control data, but not performing low frequency compensation on the audio data in any other frequency band in the set of low frequency bands.
摘要翻译：一种用于确定要编码的频域音频数据的音频数据值的尾数位分配的方法。分配方法包括通过对音频数据的一组低频带的每个频带的音频数据执行自适应低频补偿来确定音频数据值的屏蔽值的步骤。所述自适应低频补偿包括以下步骤：对所述音频数据执行音调检测，以产生指示所述一组低频带中的每个频带是否具有突出的音调内容的补偿控制数据; 对由该补偿控制数据所表示的具有突出色调内容的低频带组中的每个频带中的音频数据执行低频补偿，而不对该组中的任何其它频带中的音频数据执行低频补偿的低频带。

5. 发明申请

WO2017019674A1 AUDIO DISCONTINUITY DETECTION AND CORRECTION 审中-公开
标题翻译：音频不连续检测和校正
公开(公告)号：WO2017019674A1
公开(公告)日：2017-02-02
申请号：PCT/US2016/044023
申请日：2016-07-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： FEJGIN, Roy M. , SANCHEZ, Freddie , MELKOTE, Vinay , WARD, Michael
IPC分类号： G11B27/034 , G11B27/038 , G11B27/10 , G10L25/48 , G10L25/18
CPC分类号： G10L25/48 , G10L25/18 , G11B27/034 , G11B27/038 , G11B27/105
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.
摘要翻译：用于检测在两个音频段序列之间的连接点处的指定无缝连接（“SSC”）的渲染版本是否导致可听不连续性的方法，以及用于在音频片段序列之间分析至少一个SSC以确定是否可呈现版本的方法每个SSC在渲染时在连接点处将具有可听不连续性，并且在适当情况下，对于具有可渲染版本的SSC，其被确定为在呈现时具有可听见的不连续性，校正至少一个段序列的至少一个音频片段根据SSC进行连接，以确保SSC的呈现将导致无缝连接而没有可听见的不连续性。其他方面是配置为实现任何方法的编辑系统，以及存储根据任何方法生成的音频数据的存储介质和渲染系统。

6. 发明申请

WO2015164575A1 MATRIX DECOMPOSITION FOR RENDERING ADAPTIVE AUDIO USING HIGH DEFINITION AUDIO CODECS 审中-公开
标题翻译：使用高定义音频编码器渲染自适应音频的矩阵分解
公开(公告)号：WO2015164575A1
公开(公告)日：2015-10-29
申请号：PCT/US2015/027239
申请日：2015-04-23
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MELKOTE, Vinay , LAW, Malcolm J.
IPC分类号： G10L19/008 , H04S3/02
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。

7. 发明申请

WO2015048387A1 RENDERING OF MULTICHANNEL AUDIO USING INTERPOLATED MATRICES 审中-公开
标题翻译：使用插值矩阵渲染多通道音频
公开(公告)号：WO2015048387A1
公开(公告)日：2015-04-02
申请号：PCT/US2014/057611
申请日：2014-09-26
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： LAW, Malcolm J. , MELKOTE, Vinay , WILSON, Rhonda , PLAIN, Simon , JASPAR, Andy
IPC分类号： G10L19/008 , H04S3/00
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。

8. 发明申请

WO2016168408A1 AUDIO ENCODING AND RENDERING WITH DISCONTINUITY COMPENSATION 审中-公开
标题翻译：音频编码和渲染与不连续性补偿
公开(公告)号：WO2016168408A1
公开(公告)日：2016-10-20
申请号：PCT/US2016/027448
申请日：2016-04-14
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MELKOTE, Vinay , MCGRATH, David S.
IPC分类号： G10L19/008
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.
摘要翻译：用于生成指示不连续校正的编码音频内容的N个通道的编码音频节目的方法，包括通过对多声道音频内容应用不连续校正值，以及用于呈现这样的节目（例如，生成不连续校正的M频道组合程序指示的内容）。其他方面是被配置为实现任何方法的系统或设备（例如，编码器或解码器或渲染系统）。

9. 发明申请

WO2014204935A2 MULTI-STAGE QUANTIZATION OF PARAMETER VECTORS FROM DISPARATE SIGNAL DIMENSIONS 审中-公开
标题翻译：来自不同信号尺寸的参数矢量的多阶段定量
公开(公告)号：WO2014204935A2
公开(公告)日：2014-12-24
申请号：PCT/US2014/042696
申请日：2014-06-17
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MELKOTE, Vinay , YEN, Kuan-Chieh , DAVIDSON, Grant A.
IPC分类号： H04N19/124
CPC分类号： G10L19/038 , G10L19/008 , H04N19/94
摘要： A first vector quantization process may be applied to two or more parameter values along a first dimension of the N-dimensional parameter set to produce a first set of quantized values. Two or more parameter prediction values may be calculated for a second dimension of the N-dimensional parameter set based, at least in part, on one or more values of the first set of quantized values. Prediction residual values may be calculated based, at least in part, on the parameter prediction values. A second vector quantization process may be applied to the prediction residual values to produce a second set of quantized values. These processes may be extended to any number of dimensions. Corresponding inverse vector quantization processes may be performed.
摘要翻译：第一矢量量化处理可以沿着N维参数集的第一维应用于两个或更多个参数值，以产生第一组量化值。可以至少部分地基于第一组量化值的一个或多个值来计算N维参数集的第二维度的两个或更多个参数预测值。可以至少部分地基于参数预测值来计算预测残差值。可以将第二矢量量化处理应用于预测残差值以产生第二组量化值。这些过程可以扩展到任何数量的维度。可以执行相应的逆矢量量化处理。

10. 发明申请

WO2014126682A1 SIGNAL DECORRELATION IN AN AUDIO PROCESSING SYSTEM 审中-公开
标题翻译：音频处理系统中的信号装饰
公开(公告)号：WO2014126682A1
公开(公告)日：2014-08-21
申请号：PCT/US2014/012453
申请日：2014-01-22
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： MELKOTE, Vinay , YEN, Kuan-Chieh , DAVIDSON, Grant A. , FELLERS, Matthew , VINTON, Mark S. , KUMAR, Vivek
IPC分类号： G10L19/008 , G10L19/02 , H04S5/00 , H04S3/00
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经滤波的音频数据。去相关处理可以涉及使用非层级混合器来根据空间参数将接收到的音频数据的直接部分与经滤波的音频数据组合。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式