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公开(公告)号：EP2335428A1
公开(公告)日：2011-06-22
申请号：EP09778738.6
申请日：2009-09-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Koninklijke Philips Electronics N.V. , Dolby Sweden AB
发明人： KOPPENS, Jeroen , MUNDT, Harald , TERENTIEV, Leonid , FALCH, Cornelia , HILPERT, Johannes , HELLMUTH, Oliver , VILLEMOES, Lars , PLOGSTIES, Jan , BREEBAART, Jeroen , ENGDEGARD, Jonas
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).-
2.发明授权VORRICHTUNG UND VERFAHREN ZUM ERZEUGEN EINES CODIERTEN STEREO-SIGNALS EINES AUDIOSTÜCKS ODER AUDIODATENSTROMS 有权装置和方法用于生成音频部件或音频数据流的编码立体声信号
公开(公告)号：EP1854334B1
公开(公告)日：2010-03-17
申请号：EP06707184.5
申请日：2006-02-22
发明人： PLOGSTIES, Jan , MUNDT, Harald , POPP, Harald
CPC分类号： H04S3/004 , H04S2400/01 , H04S2420/03
摘要： Disclosed is a device for generating an encoded stereo signal from a multichannel representation. Said device comprises a multichannel decoder (11) which creates three or more multichannels from at least one base channel and parameter data. The three or more multichannels are subjected to headphone processing (12) in order to create an uncoded first stereo channel and an uncoded second stereo channel which are then fed to a stereo encoder (13) so as to generate an encoded stereo file at the output end. The encoded stereo file can be fed to any suitable playback unit in the form of a CD player or a hardware player such that a user of a playback unit obtains a multichannel impression as well as a normal stereo impression.
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公开(公告)号：EP2335428B1
公开(公告)日：2015-01-14
申请号：EP09778738.6
申请日：2009-09-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Koninklijke Philips N.V. , Dolby International AB
发明人： KOPPENS, Jeroen , MUNDT, Harald , TERENTIEV, Leonid , FALCH, Cornelia , HILPERT, Johannes , HELLMUTH, Oliver , VILLEMOES, Lars , PLOGSTIES, Jan , BREEBAART, Jeroen , ENGDEGARD, Jonas
CPC分类号： H04S3/004 , G10L19/008 , G10L19/20 , H04S1/005 , H04S2400/01 , H04S2420/01 , H04S2420/03
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公开(公告)号：EP2304975A2
公开(公告)日：2011-04-06
申请号：EP09777567.0
申请日：2009-07-30
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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5.发明公开VORRICHTUNG UND VERFAHREN ZUM ERZEUGEN EINES CODIERTEN STEREO-SIGNALS EINES AUDIOSTÜCKS ODER AUDIODATENSTROMS 有权装置和方法用于生成音频部件或音频数据流的编码立体声信号
公开(公告)号：EP1854334A1
公开(公告)日：2007-11-14
申请号：EP06707184.5
申请日：2006-02-22
发明人： PLOGSTIES, Jan , MUNDT, Harald , POPP, Harald
CPC分类号： H04S3/004 , H04S2400/01 , H04S2420/03
摘要： Disclosed is a device for generating an encoded stereo signal from a multichannel representation. Said device comprises a multichannel decoder (11) which creates three or more multichannels from at least one base channel and parameter data. The three or more multichannels are subjected to headphone processing (12) in order to create an uncoded first stereo channel and an uncoded second stereo channel which are then fed to a stereo encoder (13) so as to generate an encoded stereo file at the output end. The encoded stereo file can be fed to any suitable playback unit in the form of a CD player or a hardware player such that a user of a playback unit obtains a multichannel impression as well as a normal stereo impression.
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公开(公告)号：EP2304975B1
公开(公告)日：2014-08-27
申请号：EP09777567.0
申请日：2009-07-30
CPC分类号： H04S3/004 , H04S7/30 , H04S2400/01 , H04S2420/01
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公开(公告)号：EP2036400B1
公开(公告)日：2009-12-16
申请号：EP08735224.1
申请日：2008-04-14
发明人： HERRE, Jürgen , LINZMEIER, Karsten , POPP, Harald , PLOGSTIES, Jan , MUNDT, Harald , DISCH, Sascha
CPC分类号： H04S5/00 , H04S1/002 , H04S2420/03 , H04S2420/05
摘要： Uncorrelated output signals are generated by an audio input signal for transient audio input signals in a multi-channel audio reconstruction in that the audio input signal is mixed with a representation of the audio input signal that is delayed by a delay time such that a first output signal corresponds to the audio input signal, and a second output signal corresponds to the delayed representation of the audio input signal in a first interval, wherein the first output signal of the delayed representation of the audio input signal and the second output signal in a second interval correspond to the audio input signal in a second time interval.
摘要翻译： 非相关输出信号由用于多声道音频重建中的瞬态音频输入信号的音频输入信号产生，因为音频输入信号与延迟了延迟时间的音频输入信号的表示混合，使得第一输出 信号对应于音频输入信号，并且第二输出信号对应于第一间隔中的音频输入信号的延迟表示，其中音频输入信号的延迟表示的第一输出信号和第二输出信号的第二输出信号 间隔在第二时间间隔内对应于音频输入信号。
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公开(公告)号：EP2036400A1
公开(公告)日：2009-03-18
申请号：EP08735224.1
申请日：2008-04-14
发明人： HERRE, Jürgen , LINZMEIER, Karsten , POPP, Harald , PLOGSTIES, Jan , MUNDT, Harald , DISCH, Sascha
CPC分类号： H04S5/00 , H04S1/002 , H04S2420/03 , H04S2420/05
摘要： Uncorrelated output signals are generated by an audio input signal for transient audio input signals in a multi-channel audio reconstruction in that the audio input signal is mixed with a representation of the audio input signal that is delayed by a delay time such that a first output signal corresponds to the audio input signal, and a second output signal corresponds to the delayed representation of the audio input signal in a first interval, wherein the first output signal of the delayed representation of the audio input signal and the second output signal in a second interval correspond to the audio input signal in a second time interval.
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