-
1.发明申请Method and device for generating information relating to relative position of a set of at least three acoustic transducers (as amended) 有权用于产生与一组至少三个声换能器的相对位置有关的信息的方法和装置（经修改）公开(公告)号：US20050226437A1
公开(公告)日：2005-10-13
申请号：US10515505
申请日：2003-05-20
摘要： The invention relates to a method and device for generating data about the mutual position of at least three acoustic transducers. The aim of the invention is to make it possible to continuously measure and calculate the mutual position of at least three acoustic transducers, particularly the rotation and the position of a human head wearing headphones within a room without using any additional transmitter element on the head, headphone, or body of the listener, during audio playback. This aim is achieved by connecting the acoustic transducers to a digitally operated system which comprises an output path emitting audio signals to first and second acoustic transducers, an input path receiving audio signals from the third acoustic transducer, an audio signal source that is connected to the output path, an ultrasound generator that is connected to the output path, and an information generator which indicates a position and is connected to the input path.
摘要翻译： 本发明涉及一种用于生成关于至少三个声换能器的相互位置的数据的方法和装置。 本发明的目的是使得可以连续地测量和计算至少三个声换能器的相互位置，特别是在房间内佩戴耳机的人头部的旋转和位置，而不使用头上的任何附加的发射器元件， 耳机或听众的身体，在音频播放期间。 该目的通过将声换能器连接到数字操作的系统来实现，该数字操作系统包括向第一和第二声换能器发射音频信号的输出路径，接收来自第三声换能器的音频信号的输入路径，连接到 输出路径，连接到输出路径的超声波发生器，以及指示位置并连接到输入路径的信息发生器。
-
2.发明授权Method and device for improved sound field rendering accuracy within a preferred listening area 有权用于在优选收听区域内改善声场渲染精度的方法和装置公开(公告)号：US08437485B2
公开(公告)日：2013-05-07
申请号：US12734309
申请日：2008-10-27
CPC分类号： H04S7/30 , H04S2420/11 , H04S2420/13
摘要： A method and a device for sound field reproduction from a first audio input signal uses a plurality of loudspeakers for synthesizing a sound field within a preferred listening area in which none of the loudspeakers are located and therefore described as emanating from a virtual source. The method further includes the steps of calculating a plurality of positioning filter coefficients using virtual source description data and loudspeaker description data according to a sound field reproduction technique; and modifying the first audio input signal using the positioning filter coefficients to form second audio input signals. A loudspeaker ranking of the importance of each loudspeaker for the synthesis of the sound field within the preferred listening area is therefore defined. Then, second audio input signals are modified according to the loudspeaker ranking to form third audio input signals. Finally, the loudspeakers are alimented with the third audio input signals which synthesize a sound field.
摘要翻译： 用于从第一音频输入信号进行声场再现的方法和装置使用多个扬声器来合成优选收听区域内的声场，其中没有扬声器被定位，因此被描述为从虚拟源发出。 该方法还包括以下步骤：使用虚拟源描述数据和扬声器描述数据根据声场再现技术来计算多个定位滤波器系数; 以及使用定位滤波器系数修改第一音频输入信号以形成第二音频输入信号。 因此，定义了用于合成优选收听区域内的声场的每个扬声器的重要性的扬声器等级。 然后，根据扬声器等级来修改第二音频输入信号以形成第三音频输入信号。 最后，扬声器与合成声场的第三音频输入信号一起使用。
-
3.发明授权Method and device for generating information relating to the relative position of a set of at least three acoustic transducers 有权用于产生与一组至少三个声换能器的相对位置有关的信息的方法和装置公开(公告)号：US07272073B2
公开(公告)日：2007-09-18
申请号：US10515505
申请日：2003-05-20
摘要： The invention relates to a method and device for generating data about the mutual position of at least three acoustic transducers. The aim of the invention is to make it possible to continuously measure and calculate the mutual position of at least three acoustic transducers, particularly the rotation and the position of a human head wearing headphones within a room without using any additional transmitter element on the head, headphone, or body of the listener, during audio playback. This aim is achieved by connecting the acoustic transducers to a digitally operated system which comprises an output path emitting audio signals to first and second acoustic transducers, an input path receiving audio signals from the third acoustic transducer, an audio signal source that is connected to the output path, an ultrasound generator that is connected to the output path, and an information generator which indicates a position and is connected to the input path.
摘要翻译： 本发明涉及一种用于生成关于至少三个声换能器的相互位置的数据的方法和装置。 本发明的目的是使得可以连续地测量和计算至少三个声换能器的相互位置，特别是在房间内佩戴耳机的人头部的旋转和位置，而不使用头上的任何附加的发射器元件， 耳机或听众的身体，在音频播放期间。 该目的通过将声换能器连接到数字操作的系统来实现，该数字操作系统包括向第一和第二声换能器发射音频信号的输出路径，接收来自第三声换能器的音频信号的输入路径，连接到 输出路径，连接到输出路径的超声波发生器，以及指示位置并连接到输入路径的信息发生器。
-
公开(公告)号：US09549277B2
公开(公告)日：2017-01-17
申请号：US14116946
申请日：2012-04-25
CPC分类号： H04S7/301 , H04R3/12 , H04S2420/13
摘要： A method for optimizing the design and sound field control of a compact loud-speaker array, which includes a plurality of loudspeakers located on a closed loudspeaker surface and the control of the emitted sound field by the loudspeakers within a limited reproduction subspace, having the steps of capturing the sound field using a plurality of microphones and adjusting filter coefficients that modify the alimentation signals of the loudspeakers to minimize the difference between reproduced signals captured by the microphones and target signals describing a target sound field. A conical reproduction surface encloses a reproduction subspace is defined such that the apex of the conical reproduction surface is within the closed loudspeaker surface. Loud-speakers are positioned on a limited loudspeaker surface and the closed loudspeaker surface. The microphones are located on a limited microphone surface defined by the intersection of the inner volume of the conical reproduction subspace and the closed microphone surface.
摘要翻译： 一种用于优化紧凑型扬声器阵列的设计和声场控制的方法，其包括位于封闭式扬声器表面上的多个扬声器以及由有限再现子空间内的扬声器发射的声场的控制，具有步骤 使用多个麦克风捕获声场并调整滤波器系数，该滤波器系数修改扬声器的调节信号，以最小化由麦克风捕获的再现信号与描述目标声场的目标信号之间的差异。 包围再现子空间的锥形再现表面被限定为使得锥形再现表面的顶点在封闭的扬声器表面内。 扬声器位于有限的扬声器表面和封闭的扬声器表面。 麦克风位于由锥形再现子空间的内部容积和封闭的麦克风表面的相交处限定的有限麦克风表面上。
-
5.发明授权Method and device for enhanced sound field reproduction of spatially encoded audio input signals 有权用于增强空间编码音频输入信号的声场再现的方法和装置公开(公告)号：US09271081B2
公开(公告)日：2016-02-23
申请号：US13818014
申请日：2011-08-25
CPC分类号： H04R5/04 , H04S7/30 , H04S2400/03 , H04S2420/11 , H04S2420/13
摘要： A method for sound field reproduction into a listening area of spatially encoded first audio input signals according to sound field description data using an ensemble of physical loudspeakers. The method includes computing reproduction subspace description data from loudspeaker positioning data describing the subspace in which virtual sources can be reproduced with the physically available setup. Then, second and third audio input signals with associated sound field description data, in which second audio input signals include spatial components of the first audio input signals located within the reproducible subspace and third audio input signals include spatial components of the first audio input signals located outside of the reproducible subspace. A spatial analysis is performed on second audio input signals to extract fourth audio input signals corresponding to localizable sources within the reproducible subspace with associated source positioning data. Components of second audio input signals after spatial analysis are merged with third audio input signals into fifth audio input signals with associated sound field description data for reproduction within the reproducible subspace. Loud-speaker alimentation signals are computed from fourth and fifth audio input signals.
摘要翻译： 根据使用物理扬声器的组合的声场描述数据，将声场再现到空间编码的第一音频输入信号的收听区域中的方法。 该方法包括从扬声器定位数据计算再现子空间描述数据，该数据描述可利用物理可用设置再现虚拟源的子空间。 然后，具有相关联的声场描述数据的第二和第三音频输入信号，其中第二音频输入信号包括位于可再现子空间内的第一音频输入信号的空间分量和第三音频输入信号，包括位于第一音频输入信号的空间分量 在可再现的子空间之外。 对第二音频输入信号执行空间分析以提取与可重现的子空间内的可本地化源相对应的第四音频输入信号，并具有相关联的源定位数据。 在空间分析之后的第二音频输入信号的组件与第三音频输入信号合并成具有相关声场描述数据的第五音频输入信号，以便在可再现子空间内再现。 扬声器营养信号由第四和第五音频输入信号计算。
-
公开(公告)号：US20150131824A1
公开(公告)日：2015-05-14
申请号：US14389463
申请日：2013-03-25
申请人： Khoa-Van Nguyen , Etienne Corteel
发明人： Khoa-Van Nguyen , Etienne Corteel
CPC分类号： H04R5/02 , H04S7/00 , H04S7/301 , H04S7/307 , H04S2400/01 , H04S2400/09 , H04S2420/01 , H04S2420/13
摘要： A method for spatial sound reproduction from a first audio input signal includes using a plurality of loudspeakers using a plurality of virtual loudspeakers over which the first audio input signal is panned for forming second audio input signals using source positioning data and virtual loudspeakers positioning data. The virtual loudspeakers are synthesized by modifying second audio input signals forming third audio input signals using virtual loudspeaker spatial filter coefficients that align the loudspeakers. The method includes the steps of extracting equalization filter coefficients using source positioning data and modifying the first audio input signals using equalization filter coefficients
摘要翻译： 一种用于从第一音频输入信号进行空间声音再现的方法包括使用多个扬声器，其使用多个虚拟扬声器，在该多个虚拟扬声器上，使用源定位数据和虚拟扬声器定位数据来对第一音频输入信号进行平移以形成第二音频输入信号。 通过使用对准扬声器的虚拟扬声器空间滤波器系数修改形成第三音频输入信号的第二音频输入信号来合成虚拟扬声器。 该方法包括以下步骤：使用源定位数据提取均衡滤波器系数，并使用均衡滤波器系数修改第一音频输入信号
-
7.发明申请公开(公告)号：US20140321679A1
公开(公告)日：2014-10-30
申请号：US14357588
申请日：2012-11-07
IPC分类号： H04S1/00
CPC分类号： H04S1/007 , H04S7/30 , H04S2420/13
摘要： A method for 3D sound field reproduction from a first audio input signal using a plurality of loudspeakers distributed over a loudspeaker surface aiming at synthesizing a 3D sound field within a listening area in which none of the loudspeakers are located with the sound field radiating from a virtual source, includes the steps of calculating positioning filters using virtual source description data and loudspeaker description data according to a sound field reproduction technique derived from a surface integral, applying positioning filter coefficients to filter the first audio input signal to form second audio input signals. Loudspeakers are positioned for a sampling of the loudspeaker surface into second loudspeaker surfaces for which the loudspeaker spacing is smaller for loudspeakers located in the horizontal plane than for elevated loudspeakers. Loudspeaker weighting data are defined from the ratio between the area covered by second loudspeaker surfaces and the total area of the loudspeaker surface. The second audio input signals are modified according to the loudspeaker weighting data to form third audio input signals, which are fed into the loudspeakers to synthesize a sound field.
摘要翻译： 一种用于使用分布在扬声器表面上的多个扬声器的第一音频输入信号的3D声场再现的方法，其目的在于，在聆听区域内合成3D音场，在该收听区域内没有扬声器位于与从虚拟 源，包括根据从表面积分导出的声场再现技术，使用虚拟源描述数据和扬声器描述数据来计算定位滤波器的步骤，应用定位滤波器系数以对第一音频输入信号进行滤波以形成第二音频输入信号。 扬声器被定位成将扬声器表面采样成第二扬声器表面，扬声器间隔对于位于水平面中的扬声器而言小于扬声器。 扬声器加权数据由第二扬声器表面覆盖的区域与扬声器表面的总面积之间的比率定义。 根据扬声器加权数据对第二音频输入信号进行修改以形成第三音频输入信号，其被馈送到扬声器中以合成声场。
-
8.发明授权公开(公告)号：US08270642B2
公开(公告)日：2012-09-18
申请号：US11798478
申请日：2007-05-14
CPC分类号： H04S7/30 , H04R5/04 , H04S1/002 , H04S3/002 , H04S5/005 , H04S5/02 , H04S7/303 , H04S2400/01 , H04S2420/01
摘要： The invention relates to a method and device for reproducing sound from a first input audio signal (1) using a plurality of first loudspeakers (4) and producing a target binaural impression to a listener (6) within a listening area (55). In order to decrease the sensibility of the reproduction of sound to the environment acoustics and to simplify the adaptation of the reproduced sound to the listener's head orientation and position, it is proposed to first define a plurality of second virtual loudspeakers (49) positioned outside of the listening area (55), then to estimate a transfer function (17) between each second virtual loudspeaker (49) and the listener's ears (7a and 7b), to compute from the estimated transfer functions (17) transaural filters (2) that modify the said first input audio signal (1) to synthesize second audio input signals (30) and to synthesize input signals (3) from second audio input signals (30) for creating a synthesized wave field (34) by the said first loudspeakers (4) that appears, within the listening area (55), to be emitted by the plurality of second virtual loudspeakers (49) as a plurality of wave fronts (50) in order to reproduce the target binaural impression at the ears of the listener (7a and 7b).
摘要翻译： 本发明涉及一种用于使用多个第一扬声器（4）从第一输入音频信号（1）再现声音并且在收听区域（55）内向收听者（6）产生目标双耳印象的方法和装置。 为了降低声音再现对环境声学的敏感性，并且简化再现的声音对听者的头部取向和位置的适应性，建议首先定义多个第二虚拟扬声器（49），其位于 收听区域（55），然后估计每个第二虚拟扬声器（49）和收听者的耳朵（7a和7b）之间的传递函数（17），以根据所估计的传递函数（17）来计算经弦波滤波器（2）， 修改所述第一输入音频信号（1）以合成第二音频输入信号（30）并从第二音频输入信号（30）合成输入信号（3），用于由所述第一扬声器（30）创建合成波场（34） 4）在多个第二虚拟扬声器（49）内作为多个波阵面（50）发射在收听区域（55）内，以便再现在听众的耳朵处的目标双耳印象 r（7a和7b）。
-
9.发明申请公开(公告)号：US20080025534A1
公开(公告)日：2008-01-31
申请号：US11798478
申请日：2007-05-14
IPC分类号： H04R5/02
CPC分类号： H04S7/30 , H04R5/04 , H04S1/002 , H04S3/002 , H04S5/005 , H04S5/02 , H04S7/303 , H04S2400/01 , H04S2420/01
摘要： The invention relates to a method and device for reproducing sound from a first input audio signal (1) using a plurality of first loudspeakers (4) and producing a target binaural impression to a listener (6) within a listening area (55). In order to decrease the sensibility of the reproduction of sound to the environment acoustics and to simplify the adaptation of the reproduced sound to the listener's head orientation and position, it is proposed to first define a plurality of second virtual loudspeakers (49) positioned outside of the listening area (55), then to estimate a transfer function (17) between each second virtual loudspeaker (49) and the listener's ears (7a and 7b), to compute from the estimated transfer functions (17) transaural filters (2) that modify the said first input audio signal (1) to synthesize second audio input signals (30) and to synthesize input signals (3) from second audio input signals (30) for creating a synthesized wave field (34) by the said first loudspeakers (4) that appears, within the listening area (55), to be emitted by the plurality of second virtual loudspeakers (49) as a plurality of wave fronts (50) in order to reproduce the target binaural impression at the ears of the listener (7a and 7b).
摘要翻译： 本发明涉及一种用于使用多个第一扬声器（4）从第一输入音频信号（1）再现声音并且在收听区域（55）内向收听者（6）产生目标双耳印象的方法和装置。 为了降低声音再现对环境声学的敏感性，并且简化再现的声音对听者的头部取向和位置的适应性，建议首先定义多个第二虚拟扬声器（49），其位于 收听区域（55），然后估计每个第二虚拟扬声器（49）和收听者的耳朵（7a和7b）之间的传递函数（17），以根据所估计的传递函数（17）来计算经弦波滤波器（2） ），其修改所述第一输入音频信号（1）以合成第二音频输入信号（30）并从第二音频输入信号（30）合成输入信号（3），用于通过所述第一音频输入信号产生合成波场（34） 出现在收听区域（55）内的扬声器（4）将由多个第二虚拟扬声器（49）作为多个波阵面（50）发射，以便再现目标双耳曝光 聆听者的耳朵（7 a和7 b）。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.011 秒)
