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公开(公告)号：US08325929B2
公开(公告)日：2012-12-04
申请号：US13080685
申请日：2011-04-06
申请人： Jeroen Koppens , Harald Mundt , Leonid Terentiev , Cornelia Falch , Johannes Hilpert , Oliver Hellmuth , Lars Villemoes , Jan Plogsties , Jeroen Breebaart , Jonas Engdegard
发明人： Jeroen Koppens , Harald Mundt , Leonid Terentiev , Cornelia Falch , Johannes Hilpert , Oliver Hellmuth , Lars Villemoes , Jan Plogsties , Jeroen Breebaart , Jonas Engdegard
IPC分类号： H04R5/00
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 is described. The multi-channel audio signal has a stereo downmix signal into which a plurality of audio signals are downmixed, and side information having a downmix information, as well as object level information of the plurality of audio signals and inter-object cross correlation information. Based on a first rendering prescription, a preliminary binaural signal is computed from the first and second channels of the stereo downmix signal. A decorrelated signal is generated as an perceptual equivalent to a mono downmix of the first and second channels of the stereo downmix signal being, however, decorrelated to the mono downmix. Depending on a second rendering prescription, a corrective binaural signal is computed from the decorrelated signal and the preliminary binaural signal is mixed with the corrective binaural signal to obtain the binaural output signal.
摘要翻译： 描述了将双声道音频信号转换为双耳输出信号的双耳。 多声道音频信号具有多个音频信号被混合到其中的立体声下混合信号，以及具有下混信息的侧信息以及多个音频信号的对象级信息和对象间相互关系信息。 基于第一渲染处方，从立体声下混信号的第一和第二声道计算初步双耳信号。 产生解相关的信号作为等同于立体声下混信号的第一和第二声道的单声道下混的感知，然而，与单声道下混相关。 根据第二次呈现处方，根据解相关信号计算纠正性双耳信号，并将初步双耳信号与校正双耳信号混合以获得双耳输出信号。
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公开(公告)号：US09226089B2
公开(公告)日：2015-12-29
申请号：US13015335
申请日：2011-01-27
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 includes 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.
摘要翻译： 描述了一种用于基于表示多个信道并且由具有与每个信道相关联的虚拟声源位置的扬声器配置再现的多声道信号产生双耳信号的装置。 它包括用于不同处理的相关减速器，从而减少多个通道中的左，右通道中的至少一个，多个通道的前通道和后通道之间的相关性， 所述多个信道的中心信道，以便获得相互相似性减小的信道集合; 多个定向滤波器，用于混合将声学传播建模到收听者的第一耳道的方向滤波器的输出的第一混合器和用于混合将声学传播建模到第二耳道的方向滤波器的输出的第二混合器， 听众。 根据另一方面，执行用于形成室内处理器的下混合的中心水平降低。 根据另一方面，形成头相关传递函数的相互相似性减小集合。
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公开(公告)号：US20110211702A1
公开(公告)日：2011-09-01
申请号：US13015335
申请日：2011-01-27
IPC分类号： H04R5/00
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 includes 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.
摘要翻译： 描述了一种用于基于表示多个信道并且由具有与每个信道相关联的虚拟声源位置的扬声器配置再现的多声道信号产生双耳信号的装置。 它包括用于不同处理的相关减法器，从而减少多个通道中的左通道和右通道中的至少一个，多个通道的前通道和后通道之间的相关性， 所述多个信道的中心信道，以便获得相互相似性减小的信道集合; 多个定向滤波器，用于混合将声学传播建模到收听者的第一耳道的方向滤波器的输出的第一混合器和用于混合将声学传播建模到第二耳道的方向滤波器的输出的第二混合器， 听众。 根据另一方面，执行用于形成室内处理器的下混合的中心水平降低。 根据另一方面，形成头相关传递函数的相互相似性减小集合。
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公开(公告)号：US08145499B2
公开(公告)日：2012-03-27
申请号：US12440940
申请日：2008-04-14
申请人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
发明人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
CPC分类号： H04S5/00 , H04S1/002 , H04S2420/03 , H04S2420/05
摘要： In a case of transient audio input signals, in a multi-channel audio reconstruction, uncorrelated output signals are generated from an audio input signal in that the audio input signal is mixed with a representation of the audio input signal delayed by a delay time such that, in a first time interval, 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, wherein, in a second time interval, the first output signal corresponds to the delayed representation of the audio input signal, and the second output signal corresponds to the audio input signal.
摘要翻译： 在瞬态音频输入信号的情况下，在多声道音频重建中，从音频输入信号产生不相关的输出信号，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 在第一时间间隔中，第一输出信号对应于音频输入信号，第二输出信号对应于音频输入信号的延迟表示，其中，在第二时间间隔中，第一输出信号对应于延迟的 音频输入信号的表示，第二输出信号对应于音频输入信号。
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5.发明授权Device and method for generating an encoded stereo signal of an audio piece or audio datastream 有权用于产生音频片段或音频数据流的编码立体声信号的装置和方法公开(公告)号：US08553895B2
公开(公告)日：2013-10-08
申请号：US11840273
申请日：2007-08-17
申请人： Jan Plogsties , Harald Mundt , Harald Popp
发明人： Jan Plogsties , Harald Mundt , Harald Popp
IPC分类号： H04R5/00
CPC分类号： H04S3/004 , H04S2400/01 , H04S2420/03
摘要： A device for generating an encoded stereo signal from a multi-channel representation includes a multi-channel decoder generating three of more multi-channels from at least one basic channel and parametric information. The three or more multi-channels are subjected to headphone signal processing to generate an uncoded first stereo channel and an uncoded second stereo channel which are then supplied to a stereo encoder to generate an encoded stereo file on the output side. The encoded stereo file may be supplied to any suitable player in the form of a CD player or a hardware player such that a user of the player does not only get a normal stereo impression but a multi-channel impression.
摘要翻译： 用于从多声道表示产生编码的立体声信号的装置包括从至少一个基本频道和参数信息产生三个更多个多声道的多声道解码器。 三个或更多个多声道经受耳机信号处理以产生未编码的第一立体声声道和未编码的第二立体声声道，然后将其提供给立体声编码器，以在输出侧产生经编码的立体声文件。 编码立体声文件可以以CD播放器或硬件播放器的形式提供给任何合适的播放器，使得播放器的用户不仅获得正常的立体声印象，而且获得多频道印象。
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公开(公告)号：US20090326959A1
公开(公告)日：2009-12-31
申请号：US12440940
申请日：2008-04-14
申请人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
发明人： Juergen Herre , Karsten Linzmeier , Harald Popp , Jan Plogsties , Harald Mundt , Sascha Disch
CPC分类号： H04S5/00 , H04S1/002 , H04S2420/03 , H04S2420/05
摘要： In a case of transient audio input signals, in a multi-channel audio reconstruction, uncorrelated output signals are generated from an audio input signal in that the audio input signal is mixed with a representation of the audio input signal delayed by a delay time such that, in a first time interval, 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, wherein, in a second time interval, the first output signal corresponds to the delayed representation of the audio input signal, and the second output signal corresponds to the audio input signal.
摘要翻译： 在瞬态音频输入信号的情况下，在多声道音频重建中，从音频输入信号产生不相关的输出信号，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 在第一时间间隔中，第一输出信号对应于音频输入信号，第二输出信号对应于音频输入信号的延迟表示，其中，在第二时间间隔中，第一输出信号对应于延迟的 音频输入信号的表示，第二输出信号对应于音频输入信号。
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公开(公告)号：US09154102B2
公开(公告)日：2015-10-06
申请号：US13581453
申请日：2011-03-07
摘要： The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player.
摘要翻译： 本文件涉及多媒体数据的处理，特别是多媒体数据的编码，传输，解码和呈现，例如， 音频文件或比特流。 特别地，本文件涉及多媒体播放器中的响度控制的实现。 描述了向媒体播放器提供响度相关数据的方法。 该方法包括以下步骤：提供与音频信号相关联的第一响度相关值; 其中所述第一响度相关值已经根据第一过程确定; 使用可逆关系将第一响度相关值转换为第二响度相关值; 其中所述第二响度相关值与用于确定响度相关值的第二过程相关联; 将第二响度相关值存储在与音频信号相关联的元数据中; 并向媒体播放器提供元数据。
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8.发明申请公开(公告)号：US20120328115A1
公开(公告)日：2012-12-27
申请号：US13581453
申请日：2011-03-07
IPC分类号： H03G7/00
摘要： The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player.
摘要翻译： 本文件涉及多媒体数据的处理，特别是多媒体数据的编码，传输，解码和呈现，例如， 音频文件或比特流。 特别地，本文件涉及多媒体播放器中的响度控制的实现。 描述了向媒体播放器提供响度相关数据的方法。 该方法包括以下步骤：提供与音频信号相关联的第一响度相关值; 其中所述第一响度相关值已经根据第一过程确定; 使用可逆关系将第一响度相关值转换为第二响度相关值; 其中所述第二响度相关值与用于确定响度相关值的第二过程相关联; 将第二响度相关值存储在与音频信号相关联的元数据中; 并向媒体播放器提供元数据。
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