专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明公开

EP3382703A1 APPARATUS AND METHODS FOR PROCESSING AN AUDIO SIGNAL 审中-公开
公开(公告)号：EP3382703A1
公开(公告)日：2018-10-03
申请号：EP17189999.0
申请日：2017-09-07
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： GAMPP, Patrick , UHLE, Christian , DISCH, Sascha , KARAMPOURNIOTIS, Antonios , HAVENSTEIN, Julia , HELLMUTH, Oliver , HERRE, Jürgen , PROKEIN, Peter
IPC分类号： G10L21/038 , G10L25/69
CPC分类号： G10L25/69 , G10L21/038
摘要： An apparatus for processing an audio signal comprises a separator for separating a first portion of a spectrum of the audio signal from a second portion of the spectrum of the audio signal, the first portion having a first signal characteristic and the second portion having a second signal characteristic. The apparatus comprises a first bandwidth extender for extending a bandwidth of the first portion using first parameters associated with the first signal characteristic, for obtaining a first extended portion and comprises a second bandwidth extender for extending a bandwidth of the second portion using second parameters associated with the second signal characteristic, for obtaining a second extended portion. The apparatus comprises a combiner configured for using the first extended portion and the second extended portion for obtaining an extended combined audio signal.

42. 发明公开

EP3382700A1 APPARATUS AND METHOD FOR POST-PROCESSING AN AUDIO SIGNAL USING A TRANSIENT LOCATION DETECTION 审中-公开
公开(公告)号：EP3382700A1
公开(公告)日：2018-10-03
申请号：EP17183134.0
申请日：2017-07-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
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： G10L19/025 , G10L19/26 , G10L19/02
CPC分类号： G10L19/26 , G10L19/0204 , G10L19/025
摘要： Apparatus for post-processing an audio signal, comprising: a converter (100) for converting the audio signal into a time-frequency representation; a transient location estimator (120) for estimating a location in time of a transient portion using the audio signal or the time-frequency representation; and a signal manipulator (140) for manipulating the time-frequency representation, wherein the signal manipulator (140) is configured to reduce or eliminate a pre-echo in the time-frequency representation at a location in time before the transient location or to perform a shaping of the time-frequency representation at the transient location to amplify an attack of the transient portion.

43. 发明公开

EP3246923A1 APPARATUS AND METHOD FOR PROCESSING A MULTICHANNEL AUDIO SIGNAL 审中-公开
标题翻译：用于处理多通道音频信号的装置和方法
公开(公告)号：EP3246923A1
公开(公告)日：2017-11-22
申请号：EP16179531.5
申请日：2016-07-14
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： UHLE, Christian , KRATZ, Michael , KLOSE, Paul , LEONARD, Timothy , LUVIZOTTO, André , SCHARRER, Sebastian
IPC分类号： G11B27/28 , G10L19/02 , G11B27/00 , G10L21/04
CPC分类号： G11B27/28 , G10L19/008 , G10L21/04 , G11B27/005
摘要： An apparatus (1) for processing a multichannel audio signal (100) is provided, comprising a plurality of channel signals (x 1 , x 2 ). The apparatus performs a time scale modulation of the multichannel audio signal (100) and comprises a phase adaptor (5) and a separator (6). The phase adaptor (5) provides a processed signal (Y s , Y d ) by modifying a phase of a signal (X s , X d ) based on a combination of the channel signals (x 1 , x 2 ). The separator (6) provides separated signals (Y 1 , Y 2 ) based on the processed signal (Y s , Y d ). Also a corresponding method is provided.
摘要翻译：提供了一种用于处理多声道音频信号（100）的设备（1），其包括多个声道信号（x1，x2）。该装置执行多声道音频信号（100）的时标调节，并且包括相位适配器（5）和分离器（6）。相位适配器（5）通过基于信道信号（x1，x2）的组合来修改信号（Xs，Xd）的相位来提供经处理的信号（Ys，Yd）。分离器（6）基于处理后的信号（Ys，Yd）提供分离的信号（Y1，Y2）。还提供了相应的方法。

44. 发明授权

EP2210427B1 Apparatus, method and computer program for extracting an ambient signal 有权
标题翻译：的装置，方法和计算机程序，用于提取环境信号
公开(公告)号：EP2210427B1
公开(公告)日：2015-05-06
申请号：EP08734783.7
申请日：2008-03-26
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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

45. 发明公开

EP2831871A1 APPARATUS AND METHOD FOR IMPROVING THE PERCEIVED QUALITY OF SOUND REPRODUCTION BY COMBINING ACTIVE NOISE CANCELLATION AND PERCEPTUAL NOISE COMPENSATION 有权转让
标题翻译：装置和一种用于改善感知声品质再现按组合主动降噪和感知噪声补偿的
公开(公告)号：EP2831871A1
公开(公告)日：2015-02-04
申请号：EP13726121.0
申请日：2013-03-25
申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： UHLE, Christian , HERRE, Jürgen , WALTHER, Andreas , FLEISCHMANN, Felix , GAMPP, Patrick
IPC分类号： G10K11/178
CPC分类号： H04R3/002 , G10K11/178 , G10K2210/1081 , G10K2210/3014 , G10K2210/509 , H04R2460/01
摘要： An apparatus for improving a perceived quality of sound reproduction of an audio output signal is provided. The apparatus comprises an active noise cancellation unit (110) for generating a noise cancellation signal based on an environmental audio signal, wherein the environmental audio signal comprises noise signal portions, the noise signal portions resulting from recording environmental noise. Moreover, the apparatus comprises a residual noise characteristics estimator (120) for determining a residual noise characteristic depending on the environmental noise and the noise cancellation signal. Furthermore, the apparatus comprises a perceptual noise compensation unit (130) for generating a noise-compensated signal based on an audio target signal and based on the residual noise characteristic. Moreover, the apparatus comprises a combiner (140) for combining the noise cancellation signal and the noise- compensated signal to obtain the audio output signal.
摘要翻译：提供了一种用于改进的音频输出信号的声音再现的感知质量的装置。有源噪声消除单元（110），用于产生在环境音频信号基于噪声消除信号，worin环境音频信号的设备包括：包括噪声信号部分，所述噪声信号部分从记录环境噪声引起。更上方，该装置包括一个残留噪声特性估计器（120），用于确定的采矿残余噪声特性根据环境噪声和所述噪声消除信号。进一步，该装置包括一个感知噪声补偿单元（130），用于基于音频对象的信号，基于所述残留噪声特性的噪声补偿的信号。更上方，该装置包括用于将所述噪声消除信号和所述噪声补偿的信号，以获得所述音频输出信号的组合器（140）。

46. 发明公开

EP2681932A1 APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL 有权转让
标题翻译： DEVICE AND METHOD FOR用于处理的信号来确定所述尺寸值感知混响LEVEL，音频处理器和方法
公开(公告)号：EP2681932A1
公开(公告)日：2014-01-08
申请号：EP12706815.3
申请日：2012-02-24
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： UHLE, Christian , PAULUS, Jouni , HERRE, Juergen , PROKEIN, Peter , HELLMUTH, Oliver
IPC分类号： H04S5/00 , G10K15/12
CPC分类号： G10K15/08 , H04R29/00 , H04S5/005 , H04S7/30 , H04S2400/13 , H04S2420/07
摘要： An apparatus for determining a measure for a perceived level of reverberation in a mix signal consisting of a direct signal component (100) and a reverberation signal component (102), comprises a loudness model processor (104) comprising a perceptual filter stage for filtering the dry signal component (100) the reverberation signal component (102) or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal. The apparatus furthermore comprises a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component and the reverberation signal component. The apparatus furthermore comprises a combiner (110) for combining the first and the second loudness measures (106, 108) to obtain a measure (112) for the perceived level of reverberation.
摘要翻译：确定性采矿一种用于混响的混合信号由直射信号分量（100）和混响信号分量（102）的感知水平的量度包括响度模型处理器（104），其包括感知滤波级，用于滤波干信号分量（100），该混响信号分量（102）或所述混合信号，worin感知滤波器级被配置用于一个实体的听觉感知机制，以获得经滤波的直接信号，经滤波的混响信号或经滤波的混合信号建模，所述装置还更包括响度估计器，用于利用滤波直接信号估计第一响度度量和使用该过滤混响信号或经滤波的混合信号，其中经滤波的混合信号被从直接信号的叠加衍生估计第二响度度量分量和混响信号分量。所述装置还包括多个用于将所述第一和第二响度测量（106，108）以获得用于混响的感知水平的度量（112）的组合器（110）。

47. 发明授权

EP1371055B1 VORRICHTUNG ZUM ANALYSIEREN EINES AUDIOSIGNALS HINSICHTLICH VON RHYTHMUSINFORMATIONEN DES AUDIOSIGNALS UNTER VERWENDUNG EINER AUTOKORRELATIONSFUNKTION 有权
标题翻译：设备技术分析的音频信号相对于音频信号的节律的信息使用的一个自相关函数
公开(公告)号：EP1371055B1
公开(公告)日：2005-04-27
申请号：EP02742987.7
申请日：2002-05-10
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HERRE, Jürgen , ROHDEN, Jan , UHLE, Christian , CREMER, Markus
IPC分类号： G10H1/40
CPC分类号： G10L19/0208 , G10H1/40 , G10H2210/076 , G10H2250/135 , G10L25/06 , G10L25/90
摘要： A device for the analysis of an audio signal with regard to the rhythm information in the audio signal using an auto-correlation function, comprises a filter bank for splitting the audio signal into at least two partial-band signals. The partial band signals are analysed for periodicity by means of an auto-correlation function (106a), in order to obtain raw rhythm information for the at least two partial-band signals. The raw rhythm information is processed (121), to give processed raw rhythm information for the partial-band signal, in order to reduce or eliminate the ambiguity of the auto-correlation function for periodic signals. The rhythm information for the audio signal is determined (122) on the basis of the processed rhythm raw information. Auto-correlation function ambiguity is eliminated at the point of appearance, or rhythm components at double beat, not normally produced by an auto-correlation function processing are added by means of the auto-correlation function processing of partial bands, such that a more robust determination of the rhythm information in the audio signal results.

48. 发明公开

EP4305622A1 APPARATUS AND METHOD FOR CLEAN DIALOGUE LOUDNESS ESTIMATES BASED ON DEEP NEURAL NETWORKS 审中-实审
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
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： UHLE, Christian , KRATSCHMER, Michael , TRAVAGLINI, Alessandro , NEUGEBAUER, Bernhard
IPC分类号： G10L25/48 , G10L25/30 , G10L25/21

50. 发明授权

EP3123469B1 AUDIO ENCODER DEVICE AND AN AUDIO DECODER DEVICE HAVING EFFICIENT GAIN CODING IN DYNAMIC RANGE CONTROL 有权
标题翻译：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
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： KÜCH, Fabian , UHLE, Christian , KRATSCHMER, Michael , NEUGEBAUER, Bernhard , MEIER, Michael , SCHREINER, Stephan
IPC分类号： G10L19/16 , H03G7/00
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.

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