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    Apparatus and method for center signal scaling and stereophonic enhancement based on a signal-to-downmix ratio
    1.
    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
    装置和方法用于信号缩放装置和立体声改进基于信号到下混合比

    公开(公告)号：EP2790419A1

    公开(公告)日：2014-10-15

    申请号：EP13182103.5

    申请日：2013-08-28

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

    发明人： Uhle, Christian ,  Prokein, Peter ,  Hellmuth, Oliver ,  Scharrer, Sebastian ,  Habets, Emanuel

    IPC分类号： H04S3/00 ,  H04S7/00

    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.

    摘要翻译： 提供了一种用于产生修改的音频信号包括来自输入信号的两个或更多个修饰的音频信道到音频包括两个或多个音频输入通道的装置。 用于产生信号至降混信息信息生成器（110）的所述装置包括。 信息生成器（110）是通过angepasst以第一方式组合所述两个或多个音频输入频道中的频谱值来产生信号信息。 更上方，信息生成器（110）是由angepasst以第二方式组合所述两个或多个音频输入声道的频谱值不同于所述第一方式的不同，以生成降混信息。 进一步，信息生成器（110）是angepasst到信号信息和降混信息，以获得信号对降混信息结合起来。 更上方，该装置包括用于衰减所述两个或多个音频输入声道取决于信号与降混信息，以获得两个或更多个经修正的音频信道的信号衰减器（120）。

    Apparatus and method for improving the perceived quality of sound reproduction by combining active noise cancellation and perceptual noise compensation
    2.
    发明公开
    Apparatus and method for improving the perceived quality of sound reproduction by combining active noise cancellation and perceptual noise compensation 审中-公开
    装置和方法，用于通过主动降噪和噪声补偿的感知组合提高感知Tonqualitätswiedergabe

    公开(公告)号：EP2645362A1

    公开(公告)日：2013-10-02

    申请号：EP12169608.2

    申请日：2012-05-25

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

    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）。

    Semantic audio track mixer
    3.
    发明公开
    Semantic audio track mixer 审中-公开
    Vorrichtung zum Mischen von Audiospuren

    公开(公告)号：EP2485213A1

    公开(公告)日：2012-08-08

    申请号：EP11153211.5

    申请日：2011-02-03

    申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

    发明人： Herre, Jürgen ,  Riddebusch, Falko ,  Popp, Harald ,  Uhle, Christian

    IPC分类号： G10L15/26 ,  H04H60/04 ,  G10L15/22 ,  G06F9/44

    CPC分类号： H04R3/00 ,  G10L15/22 ,  H04H60/04

    摘要： An audio mixer for mixing a plurality of audio tracks to a mixture signal comprises a semantic command interpreter (30; 35) for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor (70; 75) for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner (76) for combining the plurality of audio tracks processed by the audio track processor into the mixture signal (MS). A corresponding method comprises: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal.

    摘要翻译： 用于将多个音频轨道混合到混合信号的音频混合器包括语义命令解释器（30; 35），用于接收语义混合命令并从语义混合命令中导出多个音频轨道的多个混合参数; 音轨处理器（70; 75），用于根据多个混合参数来处理多个音轨; 以及用于将由音频轨道处理器处理的多个音频轨道组合成混合信号（MS）的音轨组合器（76）。 相应的方法包括：接收语义混合命令; 从所述语义混合命令导出所述多个音轨的多个混合参数; 根据多个混合参数处理多个音频轨道; 以及组合由多个音频轨道的处理产生的多个音频轨道以形成混合信号。

    APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL
    4.
    发明公开
    APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL 审中-公开
    装置和方法，用于确定用于处理信号的感知混响电平，音频处理器和方法的幅度值

    公开(公告)号：EP2541542A1

    公开(公告)日：2013-01-02

    申请号：EP11171488.7

    申请日：2011-06-27

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

    发明人： Uhle, Christian ,  Herre, Jürgen ,  Paulus, Jouni ,  Hellmuth, Oliver ,  Prokein, Peter

    IPC分类号： G10K15/12 ,  H04S5/00

    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）。

    Apparatus and method for enhancing an audio signal, sound enhancing system
    6.
    发明公开
    Apparatus and method for enhancing an audio signal, sound enhancing system 审中-公开
    梵语和Verfahren zur Verbesserung eines Audiosignals，Tonverbesserungssystem

    公开(公告)号：EP2980789A1

    公开(公告)日：2016-02-03

    申请号：EP14179181.4

    申请日：2014-07-30

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： Uhle, Christian ,  Gampp, Patrick ,  Hellmuth, Oliver ,  Varga, Stefan ,  Scharrer, Sebastian

    IPC分类号： G10L19/008

    CPC分类号： G10L21/0308 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/025 ,  G10L21/0264

    摘要： An apparatus for enhancing an audio signal comprises a signal processor for processing the audio signal in order to reduce or eliminate transient and tonal portions of the processed signal and a decorrelator for generating a first decorrelated signal and a second decorrelated signal from the processed signal. The apparatus further comprises a combiner for weightedly combining the first and the second decorrelated signal and the audio signal or a signal derived from the audio signal by coherence enhancement using time variant weighting factors and to obtain a two-channel audio signal. The apparatus further comprises a controller for controlling the time variant weighting factors by analyzing the audio signal so that different portions of the audio signal are multiplied by different weighting factors and the two-channel audio signal has a time variant degree of decorrelation.

    摘要翻译： 用于增强音频信号的装置包括用于处理音频信号的信号处理器，以便减少或消除经处理的信号的瞬态和音调部分，以及去相关器，用于从处理的信号产​​生第一去相关信号和第二去相关信号。 该装置还包括组合器，用于通过使用时变加权因子的相干增强来加权组合第一和第二解相关信号和音频信号或从音频信号导出的信号，并获得双声道音频信号。 该装置还包括控制器，用于通过分析音频信号来控制时变权重因子，使得音频信号的不同部分被不同的加权因子相乘，并且双声道音频信号具有时变等级的去相关。