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1. 发明公开

EP2175670A1 Binaural rendering of a multi-channel audio signal 审中-公开
标题翻译： Binaurale Aufbereitung eines Mehrkanal-Audiosignals
公开(公告)号：EP2175670A1
公开(公告)日：2010-04-14
申请号：EP09006598.8
申请日：2009-05-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Koninklijke Philips Electronics N.V. , Dolby Sweden AB , Mundt, Harald , Terentiev, Leonid , Falch, Cornelia , Hilpert, Johannes , Hellmuth, Oliver , Plogsties, Jan , Villemoes, Lars , Breebaart, Jeroen , Koppens, Jeroen , Engdegard, Jonas
发明人： Koppens, Jeroen , Mundt, Harald , Terentiev, Leonid , Falch, Cornelia , Hilpert, Johannes , Hellmuth, Oliver , Plogsties, Jan , Villemoes, Lars , Breebaart, Jeroen , Engdegard, Jonas
IPC分类号： H04S3/00
CPC分类号： H04S3/004 , G10L19/008 , G10L19/20 , H04S1/005 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information comprising a downmix information (DMG, DCLD) indicating, for each audio signal, to what extent the respective audio signal has been mixed into a first channel and a second channel of the stereo downmix signal (18), respectively, as well as object level information of the plurality of audio signals and inter-object cross correlation information describing similarities between pairs of audio signals of the plurality of audio signals. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal X d n , k is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription P 2 1 , m , a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).
摘要翻译：描述将双声道音频信号双向渲染成双耳输出信号（24）。多声道音频信号包括立体声下混合信号（18），多个音频信号被混合到其中，并且包括下混信息（DMG，DCLD）的侧信息指示对于每个音频信号，各个音频信号分别混合到立体声下混合信号（18）的第一通道和第二通道中，以及描述多个音频信号的对象级别信息和描述对象音频信号对之间的相似性的对象间互相关信息多个音频信号。基于第一渲染处方，从立体声下混合信号（18）的第一和第二声道计算初步双耳信号（54）。产生解相关信号X d n，k作为与立体声下混信号（18）的第一和第二声道的单声道下混频（58）的感知等效，然而，与单声道下混频（58）相关。根据第二渲染处方P 2 1，m，从去相关信号（62）计算校正性双耳信号（64），并将预备双耳信号（54）与校正性双耳信号（64）混合以获得双耳输出信号（24）。

2. 发明申请

WO2012013745A3 HEADREST SPEAKER ARRANGEMENT 审中-公开
标题翻译：头戴式扬声器布置
公开(公告)号：WO2012013745A3
公开(公告)日：2012-04-26
申请号：PCT/EP2011062993
申请日：2011-07-28
申请人： FRAUNHOFER GES FORSCHUNG , SILZLE ANDREAS , HEISE ULRIK , VARGA STEFAN , LANG MATTHIAS , HELLMUTH OLIVER
发明人： SILZLE ANDREAS , HEISE ULRIK , VARGA STEFAN , LANG MATTHIAS , HELLMUTH OLIVER
IPC分类号： H04R5/02
CPC分类号： B60R11/0217 , B60R2011/0028 , B60R2013/016 , H04R1/323 , H04R5/023 , H04R2499/13
摘要： In embodiments of the invention, a headrest of a vehicle seat or a speaker box which can be attached to the vehicle seat or to a headrest is described. The headrest or the speaker box may comprise at least one speaker integrated in the headrest or in the speaker box, wherein the speaker has a main sound emission direction and wherein the speaker is fixed in the headrest or in the speaker box in such a way that the main sound emission direction is inclined with respect to a backrest main direction of the backrest of the vehicle seat.
摘要翻译：在本发明的实施例中，描述了可附接到车辆座椅或头枕的车辆座椅或扬声器箱的头靠。头枕或扬声器箱可以包括集成在头枕或扬声器箱中的至少一个扬声器，其中扬声器具有主要发声方向，并且其中扬声器以如下方式固定在头枕或扬声器箱中：主发声方向相对于车辆座椅的靠背的靠背主方向倾斜。

3. 发明申请

WO2012013745A2 HEADREST SPEAKER ARRANGEMENT 审中-公开
标题翻译：最高扬声器安装
公开(公告)号：WO2012013745A2
公开(公告)日：2012-02-02
申请号：PCT/EP2011/062993
申请日：2011-07-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , SILZLE, Andreas , HEISE, Ulrik , VARGA, Stefan , LANG, Matthias , HELLMUTH, Oliver
发明人： SILZLE, Andreas , HEISE, Ulrik , VARGA, Stefan , LANG, Matthias , HELLMUTH, Oliver
IPC分类号： H04R5/02
CPC分类号： B60R11/0217 , B60R2011/0028 , B60R2013/016 , H04R1/323 , H04R5/023 , H04R2499/13
摘要： In embodiments of the invention, a headrest of a vehicle seat or a speaker box which can be attached to the vehicle seat or to a headrest is described. The headrest or the speaker box may comprise at least one speaker integrated in the headrest or in the speaker box, wherein the speaker has a main sound emission direction and wherein the speaker is fixed in the headrest or in the speaker box in such a way that the main sound emission direction is inclined with respect to a backrest main direction of the backrest of the vehicle seat.
摘要翻译：在本发明的实施例中，描述了可以附接到车辆座椅或头枕的车辆座椅或扬声器箱的头枕。头枕或扬声器箱可以包括集成在头枕或扬声器箱中的至少一个扬声器，其中扬声器具有主声发射方向，并且其中扬声器固定在头枕或扬声器箱中，使得主声音发射方向相对于车辆座椅靠背的靠背主方向倾斜。

4. 发明申请

WO2012013744A2 VEHICLE WITH SOUND WAVE REFLECTOR 审中-公开
标题翻译：具有声波反射器的车辆
公开(公告)号：WO2012013744A2
公开(公告)日：2012-02-02
申请号：PCT/EP2011062991
申请日：2011-07-28
申请人： FRAUNHOFER GES FORSCHUNG , SILZLE ANDREAS , HEISE ULRIK , VARGA STEFAN , LANG MATTHIAS , HELLMUTH OLIVER
发明人： SILZLE ANDREAS , HEISE ULRIK , VARGA STEFAN , LANG MATTHIAS , HELLMUTH OLIVER
IPC分类号： B60R11/02
CPC分类号： B60R11/0217 , B60R2011/0028 , B60R2013/016 , H04R1/323 , H04R5/023 , H04R2499/13
摘要： Embodiments disclose a vehicle which comprises a vehicle ceiling having a first sound wave reflection portion having a first sound wave reflection characteristic and a second portion having a second sound wave reflection characteristic, wherein the first sound wave reflection portion is more sound wave reflecting than the second sound wave reflection portion and at least one speaker arranged in the vehicle, so that a main sound emission direction is directed to the first sound wave reflection portion, so that a sound wave emitted by the speaker and reflected by the first sound wave reflection portion is perceptible as a diffuse sound by a person in the vehicle.
摘要翻译：实施方式公开了一种车辆，其包括具有第一声波反射特性的第一声波反射部和具有第二声波反射特性的第二部的车顶，其中，第一声波反射部的声波反射比第二声波反射特性多声波反射部分和布置在车辆中的至少一个扬声器，使得主声发射方向指向第一声波反射部分，使得由扬声器发射并被第一声波反射部分反射的声波是车内人员可以感觉到漫射声。

5. 发明申请

WO2010040456A1 BINAURAL RENDERING OF A MULTI-CHANNEL AUDIO SIGNAL 审中-公开
标题翻译：多通道音频信号的双向渲染
公开(公告)号：WO2010040456A1
公开(公告)日：2010-04-15
申请号：PCT/EP2009/006955
申请日：2009-09-25
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , KONINKLIJKE PHILIPS ELECTRONICS N.V. , DOLBY SWEDEN AB , KOPPENS, Jeroen , MUNDT, Harald , TERENTIEV, Leonid , FALCH, Cornelia , HILPERT, Johannes , HELLMUTH, Oliver , VILLEMOES, Lars , PLOGSTIES, Jan , BREEBAART, Jeroen , ENGDEGARD, Jonas
发明人： KOPPENS, Jeroen , MUNDT, Harald , TERENTIEV, Leonid , FALCH, Cornelia , HILPERT, Johannes , HELLMUTH, Oliver , VILLEMOES, Lars , PLOGSTIES, Jan , BREEBAART, Jeroen , ENGDEGARD, Jonas
IPC分类号： H04S3/00 , H04S1/00
CPC分类号： H04S3/004 , G10L19/008 , G10L19/20 , H04S1/005 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： Binaural rendering a multi-channel audio signal into a binaural output signal (24) is described. The multi-channel audio signal comprises a stereo downmix signal (18) into which a plurality of audio signals are downmixed, and side information comprising a downmix information (DMG, DCLD) indicating, for each audio signal, to what extent the respective audio signal has been mixed into a first channel and a second channel of the stereo downmix signal (18), respectively, as well as object level information of the plurality of audio signals and inter-object cross correlation information describing similarities between pairs of audio signals of the plurality of audio signals. Based on a first rendering prescription, a preliminary binaural signal (54) is computed from the first and second channels of the stereo downmix signal (18). A decorrelated signal (X n,k d) is generated as an perceptual equivalent to a mono downmix (58) of the first and second channels of the stereo downmix signal (18) being, however, decorrelated to the mono downmix (58). Depending on a second rendering prescription (P2 1,m ), a corrective binaural signal (64) is computed from the decorrelated signal (62) and the preliminary binaural signal (54) is mixed with the corrective binaural signal (64) to obtain the binaural output signal (24).
摘要翻译：描述了将双声道音频信号呈双耳形成双耳输出信号（24）。多声道音频信号包括立体声下混合信号（18），多个音频信号被混合到其中，并且包括下混信息（DMG，DCLD）的侧信息指示对于每个音频信号，在多大程度上相应的音频信号分别混合到立体声下混合信号（18）的第一频道和第二频道中，以及多个音频信号的对象级信息和描述对象间互相关信息，描述了对多个音频信号。基于第一渲染处方，从立体声下混信号（18）的第一和第二声道计算初步双耳信号（54）。产生解相关信号（Xn，kd）作为与立体声下混信号（18）的第一和第二声道的单声道下混频（58）的感知等效，然而，与单声道下混频（58）相关。根据第二渲染处方（P21，m），从去相关信号（62）计算校正性双耳信号（64），并将预备双耳信号（54）与校正双耳信号（64）混合以获得双耳输出信号（24）。

6. 发明申请

WO2008049587A8 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 审中-公开
公开(公告)号：WO2008049587A8
公开(公告)日：2008-05-02
申请号：PCT/EP2007/009197
申请日：2007-10-23
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , HERRE, Jürgen , WALTHER, Andreas , HELLMUTH, Oliver , JANSSEN, Christiaan
发明人： UHLE, Christian , HERRE, Jürgen , WALTHER, Andreas , HELLMUTH, Oliver , JANSSEN, Christiaan
IPC分类号： G10L19/00 , G10L19/02 , H04S5/00 , H04S7/00
摘要： 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. An apparatus for deriving a multi-channel audio signal from an audio signal comprises an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal.

7. 发明申请

WO02073592A2 METHOD AND DEVICE FOR CHARACTERISING A SIGNAL AND METHOD AND DEVICE FOR PRODUCING AN INDEXED SIGNAL 审中-公开
标题翻译：方法和装置用于表征的信号，方法和设备产生信号INDEXED
公开(公告)号：WO02073592A2
公开(公告)日：2002-09-19
申请号：PCT/EP0202005
申请日：2002-02-26
申请人： FRAUNHOFER GES FORSCHUNG , ALLAMANCHE ERIC , HERRE JUERGEN , HELLMUTH OLIVER , FROEBA BERNHARD
发明人： ALLAMANCHE ERIC , HERRE JUERGEN , HELLMUTH OLIVER , FROEBA BERNHARD
IPC分类号： G06F17/30 , G10H1/00 , G10L19/02
CPC分类号： G10H1/0033 , G10H1/0008 , G10H2210/081 , G10H2240/061 , G10H2240/135 , G10H2250/235 , G10H2250/601 , G10L19/0204
摘要： The invention relates to a method for characterising a signal representing an audio content. A measure is determined (12) for a tonality of the signal, whereupon information relating to the audio content of the signal is obtained (16) on the basis of the measure for the tonality of the signal. Said measure for the tonality of the signal, used to analyse the content, is stable in relation to a signal distortion, e.g. resulting from MP3-coding, and has a high correlation with the content of the signal examined.
摘要翻译：在用于表征表示音频内容，对于信号的音调的度量被确定（12），于是发言约基于针对所述信号（16）的音调的量度的信号的音频内容的信号的方法。用于信号的内容分析的音调的度量相比Signalverzer梯级，例如通过MP3编码，鲁棒并且具有高的相关性被检查信号的内容。

8. 发明申请

WO2013004697A1 METHOD AND APPARATUS FOR DECOMPOSING A STEREO RECORDING USING FREQUENCY-DOMAIN PROCESSING EMPLOYING A SPECTRAL SUBTRACTOR 审中-公开
标题翻译：使用采用频谱分析器的频域处理来分解立体声记录的方法和装置
公开(公告)号：WO2013004697A1
公开(公告)日：2013-01-10
申请号：PCT/EP2012/062930
申请日：2012-07-03
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , FINAUER, Stefan , GAMPP, Patrick , HELLMUTH, Oliver , PROKEIN, Peter , STÖCKLMEIER, Christian
发明人： UHLE, Christian , FINAUER, Stefan , GAMPP, Patrick , HELLMUTH, Oliver , PROKEIN, Peter , STÖCKLMEIER, Christian
IPC分类号： H04S3/00
CPC分类号： H04S1/00 , H04S1/002 , H04S3/002
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.
摘要翻译：提供一种用于从具有第一输入通道和第二输入通道的立体声输入信号产生具有第一侧通道和第二侧通道的立体声侧信号的装置。该装置包括用于基于中间信息生成修改信息的修改信息生成器（110）。此外，该装置包括信号操纵器（120），其适于基于修改信息来操纵第一输入通道以获得第一侧通道并且适于基于修改信息来操纵第二输入通道以获得第二侧通道。修改信息生成器（110）包括频谱减法器（115），用于通过产生指示立体声输入信号的单声道中信号或单声道信号与第一或第二输入声道之间的差异的差值来产生修改信息。

9. 发明申请

WO2012152785A1 APPARATUS AND METHOD FOR GENERATING AN OUTPUT SIGNAL EMPLOYING A DECOMPOSER 审中-公开
标题翻译：用于产生使用分解器的输出信号的装置和方法
公开(公告)号：WO2012152785A1
公开(公告)日：2012-11-15
申请号：PCT/EP2012/058433
申请日：2012-05-08
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E. V. , WALTHER, Andreas , SILZLE, Andreas , HELLMUTH, Oliver , GRILL, Bernhard , POPP, Harald
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 two input channels. The apparatus comprises an ambient/direct decomposer (110; 210; 310; 410; 610), an ambient modification unit (120; 220; 320; 420) and a combination unit (130; 230; 330; 430). The ambient/direct decomposer (110; 210; 310; 410; 610) is adapted to decompose at least two input channels of the input signal such that each one of the at least two input channels is decomposed into a signal of a first signal group and into a signal of a second signal group. The ambient modification unit (120; 220; 320; 420) is adapted to modify a signal of the ambient signal group or a signal derived from a signal of the ambient signal group to obtain a modified signal as a first output channel. The combination unit (130; 230; 330; 430) is adapted to combine a signal of the ambient signal group or a signal derived from a signal of the ambient signal group and a signal of the direct signal group or a signal derived from a signal of the direct signal group as a second output channel.
摘要翻译：一种用于从具有至少两个输入通道的输入信号产生具有至少两个输出通道的输出信号的装置。该设备包括环境/直接分解器（110; 210; 310; 410; 610），环境修改单元（120; 220; 320; 420）和组合单元（130; 230; 330; 430）。环境/直接分解器（110; 210; 310; 410; 610）适于分解输入信号的至少两个输入通道，使得至少两个输入通道中的每一个分解成第一信号组的信号并进入第二信号组的信号。环境修改单元（120; 220; 320; 420）适于修改环境信号组的信号或从环境信号组的信号导出的信号，以获得修改的信号作为第一输出通道。组合单元（130; 230; 330; 430）适于组合环境信号组的信号或从环境信号组的信号导出的信号和直接信号组的信号或从信号导出的信号作为第二输出通道的直接信号组。

10. 发明申请

WO2011131732A1 APPARATUS AND METHOD FOR MODIFYING AN INPUT AUDIO SIGNAL 审中-公开
标题翻译：用于修改输入音频信号的装置和方法
公开(公告)号：WO2011131732A1
公开(公告)日：2011-10-27
申请号：PCT/EP2011/056355
申请日：2011-04-20
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , UHLE, Christian , HERRE, Jürgen , HELLMUTH, Oliver , FINAUER, Stefan
发明人： UHLE, Christian , HERRE, Jürgen , HELLMUTH, Oliver , FINAUER, Stefan
IPC分类号： H03G3/32 , H04S7/00 , G10L21/00 , G10L21/02
CPC分类号： G10L21/00 , G10L21/0264 , G10L21/0364 , G10L25/69 , H03G9/005 , H03G9/025
摘要： An apparatus for modifying an input audio signal comprises an excitation determiner, a storage device and a signal modifier. The excitation determiner determines a value of an excitation parameter of a subband of a plurality of subbands of the input audio signal based on an energy content of the subband. Further, the storage device stores a lookup table containing a plurality of spectral weighting factors. A spectral weighting factor of the plurality of spectral weighting factors is associated to a predefined value of the excitation parameter and a subband of the plurality of subbands. The storage device provides a spectral weighting factor corresponding to the determined value of the excitation parameter and corresponding to the subband, the value of the excitation parameter is determined for. Further, the signal modifier modifies a content of the subband of the audio signal, the value of the excitation parameter is determined for, based on the provided spectral weighting factor to provide a modified subband.
摘要翻译：用于修改输入音频信号的装置包括激励确定器，存储装置和信号修改器。激励确定器基于子带的能量含量来确定输入音频信号的多个子带的子带的激励参数的值。此外，存储装置存储包含多个频谱加权因子的查找表。多个频谱加权因子的频谱加权因子与激励参数的预定义值和多个子带中的子带相关联。存储装置提供对应于确定的激励参数值并对应于子带的频谱加权因子，确定激励参数的值。此外，信号修改器修改音频信号的子带的内容，基于所提供的频谱加权因子来确定激励参数的值以提供修改的子带。

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