公开(公告)号：EP2659483A1

公开(公告)日：2013-11-06

申请号：EP11808580.2

申请日：2011-12-15

申请人： Dolby International AB

发明人： ENGDEGARD, Jonas

IPC分类号： G10H1/00 ,  G11B17/038 ,  G11B27/038 ,  H04H60/04

CPC分类号： H04S1/00 ,  G10H1/0008 ,  G10H2210/125 ,  G10H2210/131 ,  G10H2210/136 ,  G11B27/038 ,  H04H60/04 ,  H04S7/30 ,  H04S2400/11

摘要： In one aspect, a method of providing directive transitions between audio signals comprises associating a first/second browsing direction (A1, A2) with a first/second transition effect template. In response to a browsing action in one of said browsing directions, a transition is played in which an exit segment (S0-out1, S0-out2) and an entry segment (S1-in, S2-in) are mixed in accordance with the associated transition effect template. A further aspect proposes a method of transitioning between audio signals decoded from audio data including time markers encoded as audio metadata and indicating at least one section of the respective audio signal. The method includes retrieving time marking information in the audio data; extracting an exit segment (S0-out1, S0-out2) and an entry segment (S1-in, S2-in), wherein an endpoint of at least one of the segments is synchronized with a time marker; and playing a transition in which the exit and entry segments are mixed in accordance with a transition effect template.

公开(公告)号：EP2659481A1

公开(公告)日：2013-11-06

申请号：EP11805339.6

申请日：2011-12-15

申请人： Dolby Laboratories Licensing Corporation ,  Dolby International AB

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.

公开(公告)号：EP2483887A1

公开(公告)日：2012-08-08

申请号：EP10757435.2

申请日：2010-09-28

申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Wissenschaft E.V. ,  Dolby International AB

发明人： HERRE, Jürgen ,  HILPERT, Johannes ,  HÖLZER, Andreas ,  ENGDEGARD, Jonas ,  PURNHAGEN, Heiko

IPC分类号： G10L19/00 ,  G10L19/14

CPC分类号： G10L19/008 ,  G10L19/005 ,  G10L19/20 ,  H04S3/02 ,  H04S5/005 ,  H04S2420/03

摘要： An audio signal decoder for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information and in dependence on a rendering information comprises an object parameter determinator. The object parameter determinator is configured to obtain inter-object-correlation values for a plurality of pairs of audio objects. The object parameter determinator is configured to evaluate a bitstream signaling parameter in order to decide whether to evaluate individual inter-object-correlation bitstream parameter values to obtain inter-object-correlation values for a plurality of pairs of related audio objects, or to obtain inter-object-correlation values for a plurality of pairs of related audio objects using a common inter-object-correlation bitstream parameter value. The audio signal decoder also comprises a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and using the inter-object-correlation values for a plurality of pairs of related objects and the rendering information.

摘要翻译： 用于提供对上混的下混合信号表示的基础上，信号表示和所述的音频信号解码器的对象相关的参数信息，并在一个渲染信息相依性包含对象参数确定的。 对象参数确定器被配置以获得用于对音频对象中的多元对象间互相关值。 对象参数确定器被配置成评估一个比特流，以便决定是否要评估个体对象间互相关的比特流的参数值，以获得用于对相关音频对象的一个​​。多个对象间互相关值，或获得除信令参数 用于使用共用对象间互相关位流参数值相关音频对象对一个多元化-object相关值。 音频信号解码器，以便包括被配置为获得所述下混信号表示的基础上，上混信号表示，并使用对象间互相关值对相关对象的多个部分并加以渲染信息的信号处理器。