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1. 发明公开

EP3018918A1 Apparatus and method for generating output signals based on an audio source signal, sound reproduction system and loudspeaker signal 审中-公开
标题翻译：装置和方法用于将音频源信号，声音再现和扬声器信号的基础上产生的输出信号
公开(公告)号：EP3018918A1
公开(公告)日：2016-05-11
申请号：EP14192213.8
申请日：2014-11-07
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Schlecht, Sebastian , Silzle, Andreas , Habets, Emanuel A.P. , Borß, Christian , Neugebauer, Bernhard , Stenzel, Hanne
IPC分类号： H04S7/00 , G10K15/12
CPC分类号： H04S7/305 , G10K15/10 , G10K15/12 , H04S3/02 , H04S2400/01 , H04S2420/03
摘要： An apparatus for generating a first multitude of output signals based on at least one audio source signal comprising a delay network and a feedback processor. The delay network comprises a second multitude of delay paths, each delay path having a delay line and an attenuation filter. Each delay line is configured for delaying delay line input signals and for combining the at least one audio source signal and a reverberated audio signal to obtain a combined signal, wherein the attenuation filter of a delay path is configured for filtering the combined signal from the delay line of the delay path to obtain an output signal. The first multitude of output signals comprises the output signal. The feedback processor is configured for reverberating the first multitude of output signals to obtain a third multitude of the reverberated audio signals comprising the reverberated audio signal.
摘要翻译：基于包括网络延迟和反馈处理器的至少一个音频源信号以产生输出信号的第一多个的装置。延迟网络包括延迟路径中，具有延迟线路和衰减滤波器的每个延迟路径的第二众多。每个延迟线路被配置用于延迟延迟线的输入信号和用于组合所述至少一个音频源信号和混响音频信号以获得组合信号，worin延迟路径的衰减滤波器被配置用于从所述延迟滤波的合成信号延迟路径的线以获得输出信号。输出信号的第一多个包括所述输出信号。所述反馈处理器用于混响输出信号的第一多个以获得包含混响音频信号中的混响音频信号的第三多个。

2. 发明公开

EP2830045A1 Concept for audio encoding and decoding for audio channels and audio objects 审中-公开
标题翻译： Konzept zur Audiocodierung und AudiodecodierungfürAudiokanäleund Audioobjekte
公开(公告)号：EP2830045A1
公开(公告)日：2015-01-28
申请号：EP13177378.0
申请日：2013-07-22
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： Adami, Alexander , Borss, Christian , Dick, Sascha , Ertel, Christian , Füg, Simone , Herre, Jürgen , Hilpert, Johannes , Hölzer, Andreas , Kratschmer, Michael , Küch, Fabian , Kuntz, Achim , Murtaza, Adrian , Plogsties, Jan , Silzle, Andreas , Stenzel, Hanne
IPC分类号： G10L19/008
CPC分类号： G10L19/20 , G10L19/008 , G10L19/028 , G10L19/18 , G10L19/22 , H04S3/008 , H04S2400/03 , H04S2400/11
摘要： Audio encoder for encoding audio input data (101) to obtain audio output data (501) comprises an input interface (100) for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer (200) for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel comprising audio data of a channel and audio data of at least one object; a core encoder (300) for core encoding core encoder input data; and a metadata compressor (400) for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes comprising a first mode, in which the core encoder is configured to encode the plurality of audio channels and the plurality of audio objects received by the input interface as core encoder input data, and a second mode, in which the core encoder (300) is configured for receiving, as the core encoder input data, the plurality of pre-mixed channels generated by the mixer (200).
摘要翻译：用于编码音频输入数据（101）以获得音频输出数据（501）的音频编码器包括用于接收多个音频通道的输入接口（100），与多个音频中的一个或多个音频相关的多个音频对象和元数据对象; 混合器（200），用于混合多个对象和多个通道以获得多个预混合通道，每个预混合通道包括通道的音频数据和至少一个对象的音频数据; 核心编码器（300），用于核心编码核心编码器输入数据; 以及用于压缩与所述多个音频对象中的一个或多个音频对象有关的元数据的元数据压缩器（400），其中所述音频编码器被配置为在包括第一模式的两种模式的组的至少一种模式中操作，其中核心编码器被配置为将由输入接口接收的多个音频频道和多个音频对象编码为核心编码器输入数据，以及第二模式，其中核心编码器（300）被配置为接收作为核心编码器输入数据，由混合器（200）产生的多个预混频道。

3. 发明授权

EP2384029B1 Signal generation for binaural signals 有权
标题翻译：信号生成双耳信号
公开(公告)号：EP2384029B1
公开(公告)日：2014-09-10
申请号：EP11168514.5
申请日：2009-07-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Plogsties, Jan , Mundt, Harald , Neuebauer, Bernhard , Hilpert, Johannes , Silzle, Andreas
IPC分类号： H04S3/00 , H04S7/00 , G10K15/12
CPC分类号： H04S3/004 , H04S7/30 , H04S2400/01 , H04S2420/01

4. 发明公开

EP2375779A2 Apparatus and method for measuring a plurality of loudspeakers and microphone array 审中-公开
标题翻译：装置和方法，用于测量多个扬声器和麦克风布置
公开(公告)号：EP2375779A2
公开(公告)日：2011-10-12
申请号：EP10159914.0
申请日：2010-04-14
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Silzle, Andreas , Thiergart, Oliver , Del Galdo, Giovanni , Lang, Matthias
IPC分类号： H04R5/04 , H04R29/00
CPC分类号： H04R29/002 , H04R1/02 , H04R1/08 , H04R1/406 , H04R3/005 , H04R5/027 , H04R2201/02 , H04R2201/401 , H04R2420/05 , H04R2430/21 , H04S7/301 , H04S2400/03 , H04S2400/15 , H04S2420/03
摘要： An apparatus for measuring a plurality of loudspeakers arranged at different positions comprises: a test signal generator (10) for generating a test signal for a loudspeaker; a microphone device (12) being configured for receiving a plurality of different sound signals in response to one or more loudspeaker signals emitted by a loudspeaker of the plurality of loudspeakers in response to the test signal; a controller (14) for controlling emissions of the loudspeaker signals by the plurality of loudspeakers and for handling the plurality of different sound signals so that a set of sound signals recorded by the microphone device is associated with each loudspeaker of the plurality of loudspeakers in response to the test signal; and an evaluator (16) for evaluating the set of sound signals for each loudspeaker to determine at least one loudspeaker characteristic for each loudspeaker and for indicating a loudspeaker state using the at least one loudspeaker characteristic for the loudspeaker. This scheme allows an automatic, efficient and accurate measurement of loudspeakers arranged in a three-dimensional configuration.
摘要翻译：用于测量在不同位置布置的扬声器的一个多元化的设备包括：用于产生用于扬声器的测试信号的测试信号发生器（10）; 麦克风装置（12）被配置用于响应于一个或通过扬声器的多个响应于所述测试信号的扬声器发出更多扬声器信号接收不同的声音信号的多元性; 用于通过扬声器的多元控制扬声器信号的发射和用于处理不同的声音信号的多个A控制器（14）所以没有一组由话筒装置记录的声音信号的与在响应扬声器的多个每个扬声器相关联的于该测试信号; 并评估器（16），用于对于每个扬声器确定性矿至少一个扬声器特性对每个扬声器和使用该扬声器的至少一个扬声器特性指示扬声器状态估算该组的声音信号的。该方案允许在三维构型排列的扬声器的自动，高效和准确的测量。

5. 发明授权

EP2384028B1 Signal generation for binaural signals 有权
标题翻译：信号生成双耳信号
公开(公告)号：EP2384028B1
公开(公告)日：2014-11-05
申请号：EP11168513.7
申请日：2009-07-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Plogsties, Jan , Mundt, Harald , Neugebauer, Bernhard , Hilpert, Johannes , Silzle, Andreas
IPC分类号： H04S3/00 , H04S7/00 , G10K15/12
CPC分类号： H04S3/004 , H04S7/30 , H04S2400/01 , H04S2420/01

6. 发明公开

EP2731353A3 Apparatus and method for measuring a plurality of loudspeakers 有权
标题翻译：装置和方法，用于测量多个扬声器
公开(公告)号：EP2731353A3
公开(公告)日：2014-07-30
申请号：EP13197826.4
申请日：2011-03-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Silzle, Andreas , Thiergart, Oliver , Del Galdo, Giovanni , Lang, Matthias
IPC分类号： H04R5/04 , H04R29/00 , H04R1/40 , H04R5/027
CPC分类号： H04R29/002 , H04R1/02 , H04R1/08 , H04R1/406 , H04R3/005 , H04R5/027 , H04R2201/02 , H04R2201/401 , H04R2420/05 , H04R2430/21 , H04S7/301 , H04S2400/03 , H04S2400/15 , H04S2420/03
摘要： An apparatus for measuring a plurality of loudspeakers arranged at different positions comprises: a test signal generator (10) for generating a test signal for a loudspeaker; a microphone device (12) being configured for receiving a plurality of different sound signals in response to one or more loudspeaker signals emitted by a loudspeaker of the plurality of loudspeakers in response to the test signal; a controller (14) for controlling emissions of the loudspeaker signals by the plurality of loudspeakers and for handling the plurality of different sound signals so that a set of sound signals recorded by the microphone device is associated with each loudspeaker of the plurality of loudspeakers in response to the test signal; and an evaluator (16) for evaluating the set of sound signals for each loudspeaker to determine at least one loudspeaker characteristic for each loudspeaker and for indicating a loudspeaker state using the at least one loudspeaker characteristic for the loudspeaker. This scheme allows an automatic, efficient and accurate measurement of loudspeakers arranged in a three-dimensional configuration.

7. 发明公开

EP2384028A2 Signal generation for binaural signals 有权
标题翻译：信号生成双耳信号
公开(公告)号：EP2384028A2
公开(公告)日：2011-11-02
申请号：EP11168513.7
申请日：2009-07-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Plogsties, Jan , Mundt, Harald , Neugebauer, Bernhard , Hilpert, Johannes , Silzle, Andreas
IPC分类号： H04S3/00 , H04S7/00
CPC分类号： H04S3/004 , H04S7/30 , H04S2400/01 , H04S2420/01
摘要： A device for generating a binaural signal based on a multi-channel signal representing a plurality of channels and intended for reproduction by a speaker configuration having a virtual sound source position associated to each channel, is described. It comprises a correlation reducer for differently processing, and thereby reducing a correlation between, at least one of a left and a right channel of the plurality of channels, a front and a rear channel of the plurality of channels, and a center and a non-center channel of the plurality of channels, in order to obtain an inter-similarity reduced set of channels; a plurality of directional filters, a first mixer for mixing outputs of the directional filters modeling the acoustic transmission to the first ear canal of the listener, and a second mixer for mixing outputs of the directional filters modeling the acoustic transmission to the second ear canal of the listener. According to another aspect, a center level reduction for forming the downmix for a room processor is performed. According to even another aspect, an inter-similarity decreasing set of head-related transfer functions is formed.

8. 发明公开

EP4033485A1 CONCEPT FOR AUDIO DECODING FOR AUDIO CHANNELS AND AUDIO OBJECTS 有权
公开(公告)号：EP4033485A1
公开(公告)日：2022-07-27
申请号：EP22159568.9
申请日：2014-07-16
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Adami, Alexander , Borss, Christian , Dick, Sascha , Ertel, Christian , Neukam, Simone , Herre, Jürgen , Hilpert, Johannes , Hölzer, Andreas , Kratschmer, Michael , Küch, Fabian , Kuntz, Achim , Murtaza, Adrian , Plogsties, Jan , Silzle, Andreas , Stenzel, Hanne
IPC分类号： G10L19/008 , G10L19/18 , G10L19/20 , G10L19/22 , H04S3/00
摘要： Audio decoder for decoding encoded audio data, comprising: an input interface (1100) for receiving the encoded audio data, the encoded audio data comprising a plurality of encoded channels or a plurality of encoded objects or compress metadata related to the plurality of objects; a core decoder (1300) for decoding the plurality of encoded channels and the plurality of encoded objects; a metadata decompressor (1400) for decompressing the compressed metadata; an object processor (1200) for processing the plurality of decoded objects using the decompressed metadata to obtain a number of output channels (1205) comprising audio data from the objects and the decoded channels; and a post-processor (1700) for converting the number of output channels (1205) into an output format, wherein the audio decoder is configured to bypass the object processor and to feed a plurality of decoded channels into the post-processor (1700), when the encoded audio data does not contain any audio objects and to feed the plurality of decoded objects and the plurality of decoded channels into the object processor (1200), when the encoded audio data comprises encoded channels and encoded objects..

9. 发明公开

EP3364669A1 APPARATUS AND METHOD FOR GENERATING AN AUDIO OUTPUT SIGNAL HAVING AT LEAST TWO OUTPUT CHANNELS 有权转让
公开(公告)号：EP3364669A1
公开(公告)日：2018-08-22
申请号：EP18163700.0
申请日：2012-05-08
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Walther, Andreas , Silzle, Andreas , Hellmuth, Oliver , Grill, Bernhard , Popp, Harald
IPC分类号： H04S3/00
CPC分类号： H04S3/006 , H04S3/008
摘要： An apparatus for generating an output signal having at least two output channels from an input signal having at least one input channel is provided. The apparatus comprises an ambience extractor (710) being adapted to extract at least one ambient signal with ambient signal portions from the at least one input channel, an ambient modification unit (120; 220; 320; 420) being adapted to modify the at least one ambient signal to obtain at least a first modified ambient signal, and at least two speakers. A first speaker of the at least two speakers is placed in first heights in a listening environment with respect to a listener. A second speaker of the at least two speakers is placed in second heights in a listening environment with respect to a listener, the second heights being different from the first heights. The apparatus for generating an output signal is adapted to feed the first modified ambient signal into the second speaker, and wherein the apparatus for generating an output signal is adapted to feed the first input channel with direct and ambient signal portions into the first speaker being a first horizontally arranged speaker.

10. 发明公开

EP2384028A3 Signal generation for binaural signals 有权
标题翻译：信号生成双耳信号
公开(公告)号：EP2384028A3
公开(公告)日：2012-10-24
申请号：EP11168513.7
申请日：2009-07-30
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Plogsties, Jan , Mundt, Harald , Neugebauer, Bernhard , Hilpert, Johannes , Silzle, Andreas
IPC分类号： H04S3/00 , H04S7/00 , G10K15/12
CPC分类号： H04S3/004 , H04S7/30 , H04S2400/01 , H04S2420/01
摘要： A device for generating a binaural signal based on a multi-channel signal representing a plurality of channels and intended for reproduction by a speaker configuration having a virtual sound source position associated to each channel, is described. It comprises a correlation reducer for differently processing, and thereby reducing a correlation between, at least one of a left and a right channel of the plurality of channels, a front and a rear channel of the plurality of channels, and a center and a non-center channel of the plurality of channels, in order to obtain an inter-similarity reduced set of channels; a plurality of directional filters, a first mixer for mixing outputs of the directional filters modeling the acoustic transmission to the first ear canal of the listener, and a second mixer for mixing outputs of the directional filters modeling the acoustic transmission to the second ear canal of the listener. According to another aspect, a center level reduction for forming the downmix for a room processor is performed. According to even another aspect, an inter-similarity decreasing set of head-related transfer functions is formed.

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