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1.发明公开
公开(公告)号：EP4305622A1
公开(公告)日：2024-01-17
申请号：EP22713407.9
申请日：2022-03-09
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公开(公告)号：EP3602549A1
公开(公告)日：2020-02-05
申请号：EP18714684.0
申请日：2018-03-28
发明人： DISCH, Sascha , UHLE, Christian , GAMPP, Patrick , RICHTER, Daniel , HELLMUTH, Oliver , HERRE, Jürgen , PROKEIN, Peter , KARAMPOURNIOTIS, Antonios , HAVENSTEIN, Julia
IPC分类号： G10L19/26 , G10L19/025 , G10L19/02
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3.发明授权AUDIO ENCODER DEVICE AND AN AUDIO DECODER DEVICE HAVING EFFICIENT GAIN CODING IN DYNAMIC RANGE CONTROL 有权音频编码器装置和音频解码器装置在动态范围控制中具有有效的增益编码
公开(公告)号：EP3123469B1
公开(公告)日：2018-04-18
申请号：EP15711734.2
申请日：2015-03-20
发明人： KÜCH, Fabian , UHLE, Christian , KRATSCHMER, Michael , NEUGEBAUER, Bernhard , MEIER, Michael , SCHREINER, Stephan
CPC分类号： G10L19/167 , G10L19/022 , H03G7/007
摘要： An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.
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4.发明公开APPARATUS FOR DETERMINING A SIMILARITY INFORMATION, METHOD FOR DETERMINING A SIMILARITY INFORMATION, APPARATUS FOR DETERMINING AN AUTOCORRELATION INFORMATION, APPARATUS FOR DETERMINING A CROSS-CORRELATION INFORMATION AND COMPUTER PROGRAM 审中-公开用于确定相似性信息的设备，用于确定相似性信息的方法，用于确定自相关性信息的设备，用于确定互相关信息的设备和计算机程序
公开(公告)号：EP3246824A1
公开(公告)日：2017-11-22
申请号：EP16199181.5
申请日：2016-11-16
发明人： KRATZ, Michael , UHLE, Christian , KLOSE, Paul , LEONARD, Timothy , PROKEIN, Peter , SCHARRER, Sebastian
CPC分类号： G06F17/15 , G06K9/00503 , G06K9/0053 , G06K9/0055
摘要： An apparatus for determining a similarity information on the basis of one or more input signals is configured to determine a zero crossing information describing a number of zero crossings in a respective portion for a plurality of portions of at least one of the one or more input signals. The apparatus is configured to perform a comparison on the basis of the zero crossing information, in order to determine the similarity information. A method for determining a similarity information and a computer program are also described.
Moreover, an apparatus for determining an autocorrelation information and an apparatus for determining a cross-correlation information are based on similar considerations.摘要翻译： 一种用于基于一个或多个输入信号确定相似性信息的设备被配置为针对一个或多个输入信号中的至少一个输入信号的多个部分确定描述相应部分中的零交叉数量的零交叉信息 。 该装置被配置为基于零交叉信息执行比较，以确定相似性信息。 还描述了用于确定相似性信息的方法和计算机程序。 此外，用于确定自相关信息的设备和用于确定互相关信息的设备基于类似的考虑。
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公开(公告)号：EP2659485B8
公开(公告)日：2016-04-06
申请号：EP12700279.8
申请日：2012-01-11
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6.发明公开APPARATUS AND METHOD FOR CENTER SIGNAL SCALING AND STEREOPHONIC ENHANCEMENT BASED ON A SIGNAL-TO-DOWNMIX RATIO 审中-公开对于中等信号缩放和立体声耳机改善支持设备和方法基于信号-TO-DOWNMIX RATIO
公开(公告)号：EP2984857A1
公开(公告)日：2016-02-17
申请号：EP14716549.2
申请日：2014-04-07
CPC分类号： H04S7/307 , H04S3/00 , H04S3/02 , H04S2400/01 , H04S2400/03 , H04S2400/05
摘要： An apparatus for generating a modified audio signal comprising two or more modified audio channels from an audio input signal comprising two or more audio input channels is provided. The apparatus comprises an information generator (110) for generating signal-to-downmix information. The information generator (110) is adapted to generate signal information by combining a spectral value of each of the two or more audio input channels in a first way. Moreover, the information generator (110) is adapted to generate downmix information by combining the spectral value of each of the two or more audio input channels in a second way being different from the first way. Furthermore, the information generator (110) is adapted to combine the signal information and the downmix information to obtain signal-to-downmix information. Moreover, the apparatus comprises a signal attenuator (120) for attenuating the two or more audio input channels depending on the signal-to-downmix information to obtain the two or more modified audio channels.
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7.发明授权METHOD AND APPARATUS FOR DECOMPOSING A STEREO RECORDING USING FREQUENCY-DOMAIN PROCESSING EMPLOYING A SPECTRAL WEIGHTS GENERATOR 有权方法和设备立体声录制由频率范围处理分离使用光谱权重发生器
公开(公告)号：EP2730102B1
公开(公告)日：2015-09-09
申请号：EP12731456.5
申请日：2012-07-03
发明人： UHLE, Christian , FINAUER, Stefan , GAMPP, Patrick , HELLMUTH, Oliver , PROKEIN, Peter , STÖCKLMEIER, Christian
IPC分类号： H04S3/00
摘要： An apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel is provided. The apparatus comprises a modification information generator (110) for generating modification information based on mid-side information. Furthermore, the apparatus comprises a signal manipulator (120) being adapted to manipulate the first input channel based on the modification information to obtain the first side channel and being adapted to manipulate the second input channel based on the modification information to obtain the second side channel. The modification information generator (110) comprises a spectral subtractor (115) for generating the modification information by generating a difference value indicating a difference between a mono mid signal or a mono side signal of the stereo input signal and the first or the second input channel.
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8.发明公开APPARATUS AND METHOD AND COMPUTER PROGRAM FOR GENERATING A STEREO OUTPUT SIGNAL FOR PROVIDING ADDITIONAL OUTPUT CHANNELS 有权设备和用于生成立体声输出信号，提供额外的输出通道的方法和计算机程序
公开(公告)号：EP2708041A1
公开(公告)日：2014-03-19
申请号：EP12721243.9
申请日：2012-05-08
发明人： STÖCKLMEIER, Christian , FINAUER, Stefan , UHLE, Christian , PROKEIN, Peter , HELLMUTH, Oliver , HEISE, Ulrik
CPC分类号： H04R5/00 , H04S1/007 , H04S5/005 , H04S2400/05
摘要： An apparatus for generating a stereo output signal comprises a manipulation information generator (110; 210; 340; 440; 640) being adapted to generate manipulation information depending on a first signal indication value of a first input channel and on a second signal indication value of a second input channel, and a manipulator (120; 220; 360, 370; 460, 470; 660, 670) for manipulating a combination signal based on the manipulation information to obtain a first manipulated signal as a first output channel and a second manipulated signal as a second output channel. The combination signal is a signal derived by combining the first input channel and the second input channel. Furthermore, the manipulator (120; 220; 360, 370; 460, 470; 660, 670) is configured for manipulating the combination signal in a first manner, when the first signal indication value is in a first relation to the second signal indication value, or in a different second manner, when the first signal indication value is in a different second relation to the second signal indication value.
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9.发明授权APPARATUS AND METHOD FOR GENERATING AN AMBIENT SIGNAL FROM AN AUDIO SIGNAL, APPARATUS AND METHOD FOR DERIVING A MULTI-CHANNEL AUDIO SIGNAL FROM AN AUDIO SIGNAL AND COMPUTER PROGRAM 有权装置和方法用于生产环境信号从音频信号中，设备和方法用于放电的多声道音频信号从音频信号和相应的计算机程序
公开(公告)号：EP1997102B1
公开(公告)日：2012-07-25
申请号：EP07819257.2
申请日：2007-10-23
CPC分类号： H04S5/005 , G10L19/008 , G10L19/02 , H04S2420/03
摘要： An apparatus for deriving a multi-channel audio signal comprising a front-loudspeaker signal and a back-loudspeaker signal from an audio signal, the apparatus comprising an apparatus for generating an ambient signal from the audio signal, wherein the apparatus for generating the ambient signal from the audio signal comprises means for a lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal; and means for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation, the discrimination representation describing the difference between the representation of the audio signal and the compressed representation of the audio signal and describing those portions of the audio signal not played back in the lossily compressed representation, and wherein the means for lossy compression is configured such that signal portions exhibiting regular distribution of the energy or carrying a large signal energy are preferred to be included in the compressed representation; wherein the discrimination representation forms the ambient signal; an apparatus for providing the audio signal or a signal derived therefrom as the front-loudspeaker signal; and a back-loudspeaker-signal-providing apparatus for providing the ambient signal provided by the apparatus for generating the ambient signal or a signal derived therefrom as the back-loudspeaker signal. An apparatus for generating an ambient signal from an audio signal comprises means for lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal describing a compressed audio signal. The apparatus for generating the ambient signal further comprises means for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation. The apparatus further comprises means for providing the ambient signal using the discrimination representation.
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10.发明公开
公开(公告)号：EP2210427A1
公开(公告)日：2010-07-28
申请号：EP08734783.7
申请日：2008-03-26
发明人： UHLE, Christian , HERRE, Jürgen , GEYERSBERGER, Stefan , RIDDERBUSCH, Falko , WALTER, Andreas , MOSER, Oliver
IPC分类号： H04S5/00
CPC分类号： H04R5/04
摘要： An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time-frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain-value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal.
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