-
21.发明授权Efficient and scalable parametric stereo coding for low bitrate audio coding applications 有权高效，可扩展的参数化立体声编码为低比特率的应用
公开(公告)号：EP1600945B1
公开(公告)日：2011-02-23
申请号：EP05017011.7
申请日：2002-07-10
CPC分类号： G10L19/24 , G10L19/008 , G10L19/0204 , H04S1/007 , H04S3/002
摘要： The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, which are transmitted and subsequently used for control of a stereo generator at the decoder side. Furthermore, the invention bridges the gap between simple pseudo-stereo methods, and current methods of true stereo-coding, by using a new form of parametric stereo coding. A stereo-balance parameter is introduced, which enables more advanced stereo modes, and in addition forms the basis of a new method of stereo-coding of spectral envelopes, of particular use in systems where guided HFR (High Frequency Reconstruction) is employed. As a special case, the application of this stereo-coding scheme in scalable HFR-based codecs is described.
-
22.发明公开
公开(公告)号：EP3477640A1
公开(公告)日：2019-05-01
申请号：EP18212610.2
申请日：2002-07-10
摘要： The present invention provides improvements to prior art audio codecs that generate a stereo-illusion through post-processing of a received mono signal. These improvements are accomplished by extraction of stereo-image describing parameters at the encoder side, which are transmitted and subsequently used for control of a stereo generator at the decoder side. Furthermore, the invention bridges the gap between simple pseudo-stereo methods, and current methods of true stereo-coding, by using a new form of parametric stereo coding. A stereo-balance parameter is introduced, which enables more advanced stereo modes, and in addition forms the basis of a new method of stereo-coding of spectral envelopes, of particular use in systems where guided HFR (High Frequency Reconstruction) is employed. As a special case, the application of this stereo-coding scheme in scalable HFR-based codecs is described.
-
公开(公告)号：EP3104367A1
公开(公告)日：2016-12-14
申请号：EP16181505.5
申请日：2002-07-10
IPC分类号： G10L19/02 , H04S5/00 , G10L19/008 , G10L19/24
CPC分类号： G10L19/24 , G10L19/008 , G10L19/0204 , H04S1/007 , H04S3/002
摘要： The application relates to a receiver comprising a mono signal decoder, the receiver being configured for interpolated received time consecutive stereo-width parameter and to apply the interpolated stereo-width parameters to the decoded mono signal using a parametric stereo decoder to obtain a stereo output.
摘要翻译： 本申请涉及一种包括单声道信号解码器的接收机，接收机被配置用于内插接收时间连续立体声宽度参数，并且使用参数立体声解码器将内插立体声宽度参数应用于解码单声道信号以获得立体声输出。
-
24.发明公开Enhanced coding and parameter representation of multichannel downmixed object coding 有权改进的编码和在多个对象编码下混合信道的参数表示
公开(公告)号：EP2372701A1
公开(公告)日：2011-10-05
申请号：EP11153938.3
申请日：2007-10-05
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： 使用音频对象的多个用于编码对象信号的生成的音频对象编码器包括用于生成降混信息指示的音频对象的多元性成至少两个降混声道音频对象参数发生器的分布用于生成对象参数降混信息发生器 用于音频对象，以及用于使用所述降混信息和对象参数导入的音频输出信号输出接口。 音频合成器使用，用于产生可用于创建预定义的音频输出配置的输出通道的多个输出数据降混信息。
-
25.发明公开Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods 有权基于复指数调制滤波器组和自适应时间信令方法的高级处理
公开(公告)号：EP2265042A3
公开(公告)日：2011-03-16
申请号：EP10183592.4
申请日：2004-04-30
发明人： Engdegard, Jonas , Villemoes, Lars
CPC分类号： G10L19/008 , G10L19/0204 , H03H17/0266 , H04S5/00 , H04S2420/03
摘要： A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.
摘要翻译： 用于使用输入信号生成解相关信号的合成器对多个子带信号起作用，其中子带信号包括至少两个子带样本的序列，子带样本的序列表示子带信号的带宽，其是 小于输入信号的带宽。 合成器包括用于使用混响滤波器对每个子带信号进行滤波以获得多个混响子带信号的滤波器级（201），其中多个混响子带信号一起表示解相关信号。 该解相关信号用于基于由单声道信号和相干性测量组成的参数编码的立体声信号来重建信号。
-
26.发明公开Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods 有权调制复指数滤波器组和自适应时间信令方法的基础上先进的加工
公开(公告)号：EP2265040A2
公开(公告)日：2010-12-22
申请号：EP10180679.2
申请日：2004-04-30
发明人： Engdegard, Jonas , Villemoes, Lars
CPC分类号： G10L19/008 , G10L19/0204 , H03H17/0266 , H04S5/00 , H04S2420/03
摘要： A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.
摘要翻译： 一种用于使用在输入信号产生一个去相关信号上的子带信号的多元工作时，worin的子带信号合成器包括至少两个子带样本的序列，代表子带信号的带宽的子带样本的序列，所有这些是 比输入信号的带宽小。 该合成器包括用于使用混响滤波器以获得混响子带信号的多个过滤每个子带信号，worin混响子带信号的多个A滤波器级（201）一起代表解相关信号。 这个去相关信号被用于重建基于一个参量编码的立体声信号由单声道信号和相干性测量的信号。
-
27.发明授权Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods 有权基于复指数调制滤波器组和自适应时间信令方法的高级处理
公开(公告)号：EP2265041B1
公开(公告)日：2017-12-13
申请号：EP10180688.3
申请日：2004-04-30
发明人： Engdegard, Jonas , Villemoes, Lars
CPC分类号： G10L19/008 , G10L19/0204 , H03H17/0266 , H04S5/00 , H04S2420/03
摘要： A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.
-
28.发明授权Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods 有权调制复指数滤波器组和自适应时间信令方法的基础上先进的加工
公开(公告)号：EP2265042B1
公开(公告)日：2016-10-12
申请号：EP10183592.4
申请日：2004-04-30
发明人： Engdegard, Jonas , Villemoes, Lars
CPC分类号： G10L19/008 , G10L19/0204 , H03H17/0266 , H04S5/00 , H04S2420/03
摘要： A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.
-
29.发明公开Ranking representative segments in media data 有权Einstufung vonrepräsentativenSegmenten in Mediendaten
公开(公告)号：EP2793223A1
公开(公告)日：2014-10-22
申请号：EP14164415.3
申请日：2011-12-15
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。 可以将多个排名分数分配给多个候选代表段。 多个候选代表段中的每个候选候选代表段基于可从媒体数据中提取的一种或多种类型的特征，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分数分配给多个候选代表段中的个人候选代表段。 可以基于多个排名分数从候选代表段中选择要向最终用户播放的代表段。
-
30.发明公开
公开(公告)号：EP2265040A3
公开(公告)日：2011-01-26
申请号：EP10180679.2
申请日：2004-04-30
发明人： Engdegard, Jonas , Villemoes, Lars
CPC分类号： G10L19/008 , G10L19/0204 , H03H17/0266 , H04S5/00 , H04S2420/03
摘要： A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples representing a bandwidth of the subband signal, which is smaller than a bandwidth of the input signal. The synthesizer includes a filter stage (201) for filtering each subband signal using a reverberation filter to obtain a plurality of reverberated subband signals, wherein a plurality of reverberated subband signals together represent the decorrelation signal. This decorrelation signal is used for reconstructing a signal based on a parametrically encoded stereo signal consisting of a mono signal and a coherence measure.
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.024 秒)
