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1. 发明申请

WO2008131903A1 APPARATUS AND METHOD FOR SYNTHESIZING AN OUTPUT SIGNAL 审中-公开
标题翻译：用于合成输出信号的装置和方法
公开(公告)号：WO2008131903A1
公开(公告)日：2008-11-06
申请号：PCT/EP2008/003282
申请日：2008-04-23
申请人： DOLBY SWEDEN AB , FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , ENGDEGARD, Jonas , VILLEMORS, Lars , PURNHAGEN, Heiko , RESCH, Barbara , FALCH, Cornelia , HERRE, Juergen , HILPERT, Johannes , HOELZER, Andreas , TERENTIEV, Leonid
发明人： ENGDEGARD, Jonas , VILLEMORS, Lars , PURNHAGEN, Heiko , RESCH, Barbara , FALCH, Cornelia , HERRE, Juergen , HILPERT, Johannes , HOELZER, Andreas , TERENTIEV, Leonid
IPC分类号： G10L19/00 , H04S3/02
CPC分类号： H04S1/007 , G10L19/008 , H04S2400/01
摘要： An apparatus for synthesizing a rendered output signal having a first audio channel and a second audio channel includes a decorrelator stage (356) for generating a decorrelator signal based on a downmix signal, and a combiner (364) for performing a weighted combination of the downmix signal and a decorrelated signal based on parametric audio object information (362), downmix information (354) and target rendering information (360). The combiner solves the problem of optimally combining matrixing with decorrelation for a high quality stereo scene reproduction of a number of individual audio objects using a multichannel downmix.
摘要翻译：一种用于合成具有第一音频频道和第二音频频道的渲染输出信号的装置，包括用于基于降混信号产生去相关器信号的去相关器级（356）和用于执行下混合的加权组合的组合器（364）信号和基于参数音频对象信息（362），下混信息（354）和目标渲染信息（360）的去相关信号。组合器解决了使用多通道下混合将矩阵化与去相关最佳组合以用于多个单独音频对象的高质量立体场景再现的问题。

2. 发明申请

WO2009086919A1 AUDIO ENCODER AND DECODER 审中-公开
标题翻译：音频编码器和解码器
公开(公告)号：WO2009086919A1
公开(公告)日：2009-07-16
申请号：PCT/EP2008/011145
申请日：2008-12-30
申请人： DOLBY SWEDEN AB , BISWAS, Arijit , PURNHAGEN, Heiko , KJÖRLING, Kristofer , RESCH, Barbara , VILLEMOES, Lars, Falck , HEDELIN, Per, Henrik
发明人： BISWAS, Arijit , PURNHAGEN, Heiko , KJÖRLING, Kristofer , RESCH, Barbara , VILLEMOES, Lars, Falck , HEDELIN, Per, Henrik
IPC分类号： G10L19/00
CPC分类号： G10L19/26 , G10L19/008 , G10L19/032 , G10L19/035
摘要： The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises a linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; a quantization unit for quantizing a transform domain signal; a long term prediction unit for determining an estimation of the frame of the filtered input signal based on a reconstruction of a previous segment of the filtered input signal; and a transform domain signal combination unit for combining, in the transform domain, the long term prediction estimation and the transformed input signal to generate the transform domain signal.
摘要翻译：本发明教导了一种新的音频编码系统，其可以以低比特率良好地对一般音频和语音信号进行编码。所提出的音频编码系统包括：基于自适应滤波器对输入信号进行滤波的线性预测单元; 变换单元，用于将经滤波的输入信号的帧变换为变换域; 用于量化变换域信号的量化单元; 一个长期预测单元，用于基于经滤波的输入信号的先前段的重建来确定滤波输入信号的帧的估计; 以及变换域信号组合单元，用于在变换域中组合长期预测估计和变换的输入信号，以生成变换域信号。

3. 发明申请

WO2008046531A1 ENHANCED CODING AND PARAMETER REPRESENTATION OF MULTICHANNEL DOWNMIXED OBJECT CODING 审中-公开
标题翻译：多通道下行对象编码的增强编码和参数表示
公开(公告)号：WO2008046531A1
公开(公告)日：2008-04-24
申请号：PCT/EP2007/008683
申请日：2007-10-05
申请人： CODING TECHNOLOGIES AB , ENGDEGARD, Jonas , VILLEMOES, Lars , PURNHAGEN, Heiko , RESCH, Barbara
发明人： ENGDEGARD, Jonas , VILLEMOES, Lars , PURNHAGEN, Heiko , RESCH, Barbara
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/008 , H04S3/008 , H04S3/02 , H04S5/00 , H04S7/30 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： An audio object coder for generating an encoded object signal using a plurality of audio objects includes a downmix information generator for generating downmix information indicating a distribution of the plurality of audio objects into at least two downmix channels, an audio object parameter generator for generating object parameters for the audio objects, and an output interface for generating the imported audio output signal using the downmix information and the object parameters. An audio synthesizer uses the downmix information for generating output data usable for creating a plurality of output channels of the predefined audio output configuration.
摘要翻译：一种用于使用多个音频对象生成编码对象信号的音频对象编码器包括：下混信息发生器，用于将表示多个音频对象的分布的下混信息生成到至少两个下混通道中;一个用于产生对象参数的音频对象参数发生器以及用于使用下混合信息和对象参数来生成导入的音频输出信号的输出接口。音频合成器使用下混信息来产生可用于创建预定音频输出配置的多个输出声道的输出数据。

4. 发明申请

WO2012091935A9 REPETITION DETECTION IN MEDIA DATA 审中-公开
公开(公告)号：WO2012091935A9
公开(公告)日：2012-07-05
申请号：PCT/US2011/065080
申请日：2011-12-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
发明人： RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
IPC分类号： G10H1/00 , G06K9/00 , G06F17/30
摘要： Techniques for repetition detection in media data are provided. Media features of many different types may be extracted from the media data. Query sequences of fingerprints may be selected time intervals that begin at query times. Matched sequences of fingerprints may be determined. A set of offset values may be determined based on the matched sequences of fingerprints. This set of offset values may be further refined into a set of significant time points using a relatively targeted search and comparison method based on the media features of a second type extracted from the media data.

5. 发明申请

WO2012091936A1 SCENE CHANGE DETECTION AROUND A SET OF SEED POINTS IN MEDIA DATA 审中-公开
标题翻译：在媒体数据中的一组种子点之间的场景变化检测
公开(公告)号：WO2012091936A1
公开(公告)日：2012-07-05
申请号：PCT/US2011/065086
申请日：2011-12-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
发明人： RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
IPC分类号： G10H1/00 , G06K9/00 , G06F17/30
CPC分类号： H04R29/00 , G06F17/00 , G06F17/3053 , G10H1/0008 , G10H2210/061 , G10H2240/151 , G10L25/48
摘要： Techniques for scene change detection around seed points in media data are provided. Media features of many different types may be extracted from the media data. One or more statistical patterns of media features in a plurality of time-wise intervals around a plurality of seed time points of the media data may be determined using one or more types of features extractable from the media data. At least one of the one or more types of features comprises a type of features that captures structural properties, tonality including harmony and melody, timbre, rhythm, loudness, stereo mix, or a quantity of sound sources as related to the media data. A plurality of beginning scene change points and a plurality of ending scene change points in the media data may be detected, based on the one or more statistical patterns, for the plurality of seed time points in the media data.
摘要翻译：提供媒体数据中种子点周围场景变化检测技术。可以从媒体数据中提取许多不同类型的媒体特征。可以使用从媒体数据可提取的一种或多种类型的特征来确定围绕媒体数据的多个种子时间点的多个时间间隔中的媒体特征的一个或多个统计模式。一种或多种类型的特征中的至少一种包括捕获与媒体数据相关的结构性质，包括和声和旋律的音调，音色，节奏，响度，立体声混合或数量的声源的特征的类型。可以基于媒体数据中的多个种子时间点的一个或多个统计模式来检测媒体数据中的多个起始场景变化点和多个结束场景变化点。

6. 发明申请

WO2011048010A1 METADATA TIME MARKING INFORMATION FOR INDICATING A SECTION OF AN AUDIO OBJECT 审中-公开
标题翻译： METADATA时间标记信息，用于指示音频对象的一部分
公开(公告)号：WO2011048010A1
公开(公告)日：2011-04-28
申请号：PCT/EP2010/065463
申请日：2010-10-14
申请人： DOLBY INTERNATIONAL AB , RESCH, Barbara , ENGDEGARD, Jonas
发明人： RESCH, Barbara , ENGDEGARD, Jonas
IPC分类号： G11B27/10 , G10L11/00
CPC分类号： G11B27/034 , G10L21/04 , G10L25/00
摘要： The application relates to a method for encoding time marking information within audio data. According to the method, time marking information is encoded as audio metadata within the audio data. The time marking information indicates at least one section of an audio object encoded in the audio data. E.g. the time marking information may specify a start position and an end position of the section or only a start position. The at least one section may be a characteristic part of the audio object, which allows instant recognition by listening. The time marking information encoded in the audio data enables instantaneous browsing to a certain section of the audio object. The application further relates to a method for decoding the time marking information encoded in the audio data.
摘要翻译：本申请涉及用于对音频数据内的时间标记信息进行编码的方法。根据该方法，时间标记信息被编码为音频数据内的音频元数据。时间标记信息表示在音频数据中编码的音频对象的至少一个部分。例如。时间标记信息可以指定该部分的开始位置和结束位置，或仅指定开始位置。所述至少一个部分可以是音频对象的特征部分，其允许通过收听进行即时识别。在音频数据中编码的时间标记信息使得能够对音频对象的某一部分进行瞬时浏览。本申请还涉及一种对音频数据中编码的时间标记信息进行解码的方法。

7. 发明申请

WO2012091938A1 RANKING REPRESENTATIVE SEGMENTS IN MEDIA DATA 审中-公开
标题翻译：在媒体数据中排名代表部分
公开(公告)号：WO2012091938A1
公开(公告)日：2012-07-05
申请号：PCT/US2011/065089
申请日：2011-12-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
发明人： RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
IPC分类号： G10H1/00 , G06K9/00 , G06F17/30
CPC分类号： H04R29/00 , G06F17/00 , G06F17/3053 , G10H1/0008 , G10H2210/061 , G10H2240/151 , G10L25/48
摘要： Techniques for ranking representative segments in media data are provided. Media features of many different types may be extracted from the media data. A plurality of ranking scores may be assigned to a plurality of candidate representative segments. Each individual candidate representative segment in the plurality of candidate representative segments comprises at least one scene in one or more statistical patterns in media features of the media data based on one or more types of features extractable from the media data. Each individual ranking score in the plurality of ranking scores may be assigned to an individual candidate representative segment in the plurality of candidate representative segments. A representative segment to be played to an end user may be selected from the candidate representative segments, based on the plurality of ranking scores.
摘要翻译：提供了在媒体数据中排列代表片段的技术。可以从媒体数据中提取许多不同类型的媒体特征。可以将多个排名得分分配给多个候选代表段。基于从媒体数据可提取的一种或多种类型的特征，多个候选代表段中的每个候选代表段包括媒体数据的媒体特征中的一个或多个统计模式中的至少一个场景。可以将多个排名得分中的每个个体排名得分分配给多个候选代表段中的个别候选代表段。可以基于多个排名得分从候选代表段中选择要向最终用户播放的代表段。

8. 发明申请

WO2012000882A1 SELECTIVE BASS POST FILTER 审中-公开
标题翻译：选择性过滤器
公开(公告)号：WO2012000882A1
公开(公告)日：2012-01-05
申请号：PCT/EP2011/060555
申请日：2011-06-23
申请人： DOLBY INTERNATIONAL AB , RESCH, Barbara , KJÖRLING, Kristofer , VILLEMOES, Lars
发明人： RESCH, Barbara , KJÖRLING, Kristofer , VILLEMOES, Lars
IPC分类号： G10L19/14
CPC分类号： G10L19/26 , G10L19/02 , G10L19/0212 , G10L19/032 , G10L19/09 , G10L19/107 , G10L19/12 , G10L19/125 , G10L19/20 , G10L19/22 , G10L19/265 , G10L21/003 , G10L21/007 , G10L21/013
摘要： In one aspect, the invention provides an audio encoding method characterized by a decision being made as to whether the device which will decode the resulting bit stream should apply post filtering including attenuation of interharmonic noise. Hence, the decision whether to use the post filter, which is encoded in the bit stream, is taken separately from the decision as to the most suitable coding mode. In another aspect, there is provided an audio decoding method with a decoding step followed by a post-filtering step, including interharmonic noise attenuation, and being characterized in a step of disabling the post filter in accordance with post filtering information encoded in the bit stream signal. Such a method is well suited for mixed-origin audio signals by virtue of its capability to deactivate the post filter in dependence of the post filtering information only, hence independently of factors such as the current coding mode.
摘要翻译：在一个方面，本发明提供了一种音频编码方法，其特征在于作出关于将对所得比特流进行解码的装置是否应该应用包括衰减间谐波噪声的后置滤波的决定。因此，决定是否使用在比特流中编码的后置滤波器，与最适合的编码模式的决定分开。另一方面，提供了一种音频解码方法，具有解码步骤，随后是包括间谐波噪声衰减的后置滤波步骤，并且其特征在于根据在比特流中编码的后滤波信息来禁用后置滤波器信号。这种方法由于仅根据后滤波信息去激活后置滤波器的能力，因此独立于诸如当前编码模式的因素，这种方法非常适用于混合起始音频信号。

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