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1. 发明授权

US08135136B2 Audio signal enhancement 有权
标题翻译：音频信号增强
公开(公告)号：US08135136B2
公开(公告)日：2012-03-13
申请号：US11574418
申请日：2005-08-30
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart
IPC分类号： H04R5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L21/00 , H04S1/002 , H04S2420/03
摘要： A device (10) for enhancing a multi-channel (e.g. stereo) audio signal has a parameter adjustment unit (13) for adjusting an original parameter (α, ILD, ICC) which represents an original inter-channel property of the audio signal. The device further comprises a processing unit (11) for processing the audio signal so as to produce an enhanced audio signal having the adjusted parameter (α′, ILD′, ICC′). The device allows stereo widening or other multi-channel signal enhancements without introducing artifacts.
摘要翻译：用于增强多声道（例如立体声）音频信号的设备（10）具有用于调整表示音频信号的原始信道间特性的原始参数（α，ILD，ICC）的参数调整单元（13）。该装置还包括处理单元（11），用于处理该音频信号以产生具有调整后的参数（α'，ILD'，ICC'）的增强音频信号。该器件允许立体声加宽或其他多通道信号增强而不引入伪像。

2. 发明申请

US20080253578A1 Method of and Device for Generating and Processing Parameters Representing Hrtfs 有权
标题翻译：用于生成和处理表示Hrtfs的参数的方法和设备
公开(公告)号：US20080253578A1
公开(公告)日：2008-10-16
申请号：US12066507
申请日：2006-09-06
申请人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
发明人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
IPC分类号： H04R5/00
CPC分类号： H04S1/002 , H04R25/552 , H04S2420/01
摘要： A method of generating parameters representing Head-Related Transfer Functions, the method comprising the steps of a) sampling with a sample length (n) a first time-domain HRTF impulse response signal using a sampling rate (fs) yielding a first time-discrete signal, b) transforming the first time-discrete signal to the frequency domain yielding a first frequency-domain signal, c) splitting the first frequency-domain signal into sub-bands, and d) generating a first parameter of the sub-bands based on a statistical measure of values of the sub-bands.
摘要翻译：一种产生表示头相关传递函数的参数的方法，所述方法包括以下步骤：a）使用产生第一时间离散的采样率（fs）以采样长度（n）采样第一时域HRTF脉冲响应信号信号，b）将第一时间离散信号变换到频域，产生第一频域信号，c）将第一频域信号分割为子带，以及d）基于子带的第一参数生成对子带值进行统计测量。

3. 发明授权

US08520871B2 Method of and device for generating and processing parameters representing HRTFs 有权
标题翻译：用于生成和处理表示HRTF的参数的方法和设备
公开(公告)号：US08520871B2
公开(公告)日：2013-08-27
申请号：US13546314
申请日：2012-07-11
申请人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
发明人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
IPC分类号： H04R5/00 , H04R5/02 , H04H20/47 , H04B15/00
CPC分类号： H04S1/002 , H04R25/552 , H04S2420/01
摘要： A device for processing parameters representing Head-Related Transfer Functions includes an input stage configured to receive audio signals of sound sources, a determinor configured to receive reference parameters representing Head-Related Transfer Functions and configured to determine, from the audio signals, position information representing positions and/or directions of the sound sources. A processor is configured to process the audio signals; and an influencer is configured to influence the processing of the audio signals based on the position information yielding an influenced output audio signal.
摘要翻译：用于处理表示头相关传送功能的参数的设备包括被配置为接收声源的音频信号的输入级，被配置为接收表示头相关传送功能的参考参数并被配置为从音频信号确定表示声源的位置和/或方向。处理器被配置为处理音频信号; 并且影响者被配置为基于产生受影响的输出音频信号的位置信息来影响音频信号的处理。

4. 发明授权

US08144879B2 Method, device, encoder apparatus, decoder apparatus and audio system 有权
标题翻译：方法，设备，编码器装置，解码装置和音频系统
公开(公告)号：US08144879B2
公开(公告)日：2012-03-27
申请号：US12882849
申请日：2010-09-15
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roeden
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roeden
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (LO, RO). A first signal and a third signal are added in order to obtain a first output signal (L0w), wherein the first signal (L0wL) comprises the first stereo signal (LO) modified by a first complex function (g1), and the third signal (L0wR) comprises the second stereo signal (RO) modified by a third complex function (g3). A second signal and a fourth signal are added to obtain a second output signal (R0w). The fourth signal (R0wR) comprises the second stereo signal (RO) modified by a fourth complex function (g4), and the second signal (R0wL) comprises the first stereo signal (LO) modified by a second complex function (g2). The complex functions (g1, g2, g3, g4) are functions of the spatial parameters (P) and are chosen to be such that an energy value of the difference (L0wL,R0wL) between the first signal and the second signal is larger than or equal to the energy value of the sum (L0wL+R0wL) of the first and the second signal, and the energy value of the difference (R0wR−L0wR) between the fourth signal and the third signal is larger than or equal to the energy value of the sum (R0wR+L0wR) of the fourth signal and the third signal.
摘要翻译：描述了一种用于处理从编码器获得的立体声信号的方法和装置，其将N声道音频信号编码为空间参数（P）和包括第一和第二立体声信号（LO，RO）的立体声下混合。添加第一信号和第三信号以获得第一输出信号（L0w），其中第一信号（L0wL）包括由第一复函数（g1）修改的第一立体声信号（LO）和第三信号（L0wR）包括由第三复合函数（g3）修改的第二立体声信号（RO）。添加第二信号和第四信号以获得第二输出信号（R0w）。第四信号（R0wR）包括由第四复数函数（g4）修改的第二立体声信号（RO），第二信号（R0wL）包括由第二复函数（g2）修改的第一立体声信号（LO）。复合函数（g1，g2，g3，g4）是空间参数（P）的函数，并且被选择为使得第一信号和第二信号之间的差值（L0wL，R0wL）的能量值大于或等于第一和第二信号的和（L0wL + R0wL）的能量值，并且第四信号和第三信号之间的差值（R0wR-L0wR）的能量值大于或等于能量第四信号和第三信号的和（R0wR + L0wR）的值。

5. 发明授权

US09992599B2 Method, device, encoder apparatus, decoder apparatus and audio system 有权
公开(公告)号：US09992599B2
公开(公告)日：2018-06-05
申请号：US10599560
申请日：2005-03-30
申请人： Machiel Willem Van Loon , Gerard Herman Hotho , Dirk Jeroen Breebaart
发明人： Machiel Willem Van Loon , Gerard Herman Hotho , Dirk Jeroen Breebaart
IPC分类号： H04R5/00 , H04S3/00 , G10L19/008 , H04S3/02
CPC分类号： H04S3/008 , G10L19/008 , H04S3/02 , H04S2420/03
摘要： Method for processing a stereo signal includes encoding an N-channel audio signal in a stereo signal (Lo, Ro) and spatial parameters (wl, wr), processing the stereo signal using the spatial parameters for generating a processed stereo signal (low, Row). The matrix of the processed stereo signal is described as the matrix of the stereo signal, multiplied by a filter matrix (H) having element that are filter functions (H1, H2, H3, H4) operated with spatial parameters (wl, wr) and a constant (a). The filter functions are time invariant and selected so that the matrix is invertible.

6. 发明申请

US20110058679A1 Method, Device, Encoder Apparatus, Decoder Apparatus and Audio System 有权
标题翻译：方法，设备，编码器装置，解码装置和音频系统
公开(公告)号：US20110058679A1
公开(公告)日：2011-03-10
申请号：US12882849
申请日：2010-09-15
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roeden
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roeden
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (L0, R0). A first signal and a third signal are added in order to obtain a first output signal (Low), wherein the first signal (L0wL) comprises the first stereo signal (L0) modified by a first complex function (g1), and the third signal (L0wR) comprises the second stereo signal (R0) modified by a third complex function (g3). A second signal and a fourth signal are added to obtain a second output signal (R0w). The fourth signal (R0wR) comprises the second stereo signal (R0) modified by a fourth complex function (g4), and the second signal (R0wL) comprises the first stereo signal (L0) modified by a second complex function (g2). The complex functions (g1, g2, g3, g4) are functions of the spatial parameters (P) and are chosen to be such that an energy value of the difference (L0wL,R0wL) between the first signal and the second signal is larger than or equal to the energy value of the sum (L0wL+R0wL) of the first and the second signal, and the energy value of the difference (R0wR−L0wR) between the fourth signal and the third signal is larger than or equal to the energy value of the sum (R0wR+L0wR) of the fourth signal and the third signal.
摘要翻译：描述了一种用于处理从编码器获得的立体声信号的方法和装置，其将N声道音频信号编码为空间参数（P）和包括第一和第二立体声信号（L0，R0）的立体声缩混混音。添加第一信号和第三信号以获得第一输出信号（Low），其中第一信号（L0wL）包括由第一复函数（g1）修改的第一立体声信号（L0）和第三信号（L0wR）包括由第三复数函数（g3）修改的第二立体声信号（R0）。添加第二信号和第四信号以获得第二输出信号（R0w）。第四信号（R0wR）包括由第四复数函数（g4）修改的第二立体声信号（R0），第二信号（R0wL）包括由第二复函数（g2）修改的第一立体声信号（L0）。复合函数（g1，g2，g3，g4）是空间参数（P）的函数，并且被选择为使得第一信号和第二信号之间的差值（L0wL，R0wL）的能量值大于或等于第一和第二信号的和（L0wL + R0wL）的能量值，并且第四信号和第三信号之间的差值（R0wR-L0wR）的能量值大于或等于能量第四信号和第三信号的和（R0wR + L0wR）的值。

7. 发明申请

US20090034744A1 AUDIO SIGNAL ENHANCEMENT 有权
标题翻译：音频信号增强
公开(公告)号：US20090034744A1
公开(公告)日：2009-02-05
申请号：US11574418
申请日：2005-08-30
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart
IPC分类号： H04R5/00
CPC分类号： G10L19/26 , G10L19/008 , G10L21/00 , H04S1/002 , H04S2420/03
摘要： A device (10) for enhancing a multi-channel (e.g. stereo) audio signal has a parameter adjustment unit (13) for adjusting an original parameter (α, ILD, ICC) which represents an original inter-channel property of the audio signal. The device further comprises a processing unit (11) for processing the audio signal so as to produce an enhanced audio signal having the adjusted parameter (α′, ILD′, ICC′). The device allows stereo widening or other multi-channel signal enhancements without introducing artifacts.
摘要翻译：用于增强多声道（例如立体声）音频信号的设备（10）具有用于调整表示音频信号的原始信道间特性的原始参数（α，ILD，ICC）的参数调整单元（13）。该装置还包括处理单元（11），用于处理该音频信号以产生具有经调整的参数（α'，ILD'，ICC'）的增强音频信号。该器件允许立体声加宽或其他多通道信号增强而不引入伪像。

8. 发明申请

US20120275606A1 METHOD OF AND DEVICE FOR GENERATING AND PROCESSING PARAMETERS REPRESENTING HRTFs 有权
标题翻译：用于生成和处理表示HRTF的参数的方法和装置
公开(公告)号：US20120275606A1
公开(公告)日：2012-11-01
申请号：US13546314
申请日：2012-07-11
申请人： JEROEN DIRK BREEBAART , MICHEL MACHIEL WILLEM VAN LOON
发明人： JEROEN DIRK BREEBAART , MICHEL MACHIEL WILLEM VAN LOON
IPC分类号： H04R5/00 , H04R25/00
CPC分类号： H04S1/002 , H04R25/552 , H04S2420/01
摘要： A method of generating parameters representing Head-Related Transfer Functions, the method comprising the steps of a) sampling with a sample length (n) a first time-domain HRTF impulse response signal using a sampling rate (fs) yielding a first time-discrete signal, b) transforming the first time-discrete signal to the frequency domain yielding a first frequency-domain signal, c) splitting the first frequency-domain signal into sub-bands, and d) generating a first parameter of the sub-bands based on a statistical measure of values of the sub-bands.
摘要翻译：一种产生表示头相关传递函数的参数的方法，所述方法包括以下步骤：a）使用产生第一时间离散的采样率（fs）以采样长度（n）采样第一时域HRTF脉冲响应信号信号，b）将第一时间离散信号变换到频域，产生第一频域信号，c）将第一频域信号分割为子带，以及d）基于子带的第一参数生成对子带值进行统计测量。

9. 发明授权

US08243969B2 Method of and device for generating and processing parameters representing HRTFs 有权
标题翻译：用于生成和处理表示HRTF的参数的方法和设备
公开(公告)号：US08243969B2
公开(公告)日：2012-08-14
申请号：US12066507
申请日：2006-09-06
申请人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
发明人： Jeroen Dirk Breebaart , Michel Machiel Willem Van Loon
IPC分类号： H04R5/00 , H04R5/02 , H04H20/47 , H04B15/00
CPC分类号： H04S1/002 , H04R25/552 , H04S2420/01
摘要： A method of generating parameters representing Head-Related Transfer Functions, the method comprising the steps of a) sampling with a sample length (n) a first time-domain HRTF impulse response signal using a sampling rate (fs) yielding a first time-discrete signal, b) transforming the first time-discrete signal to the frequency domain yielding a first frequency-domain signal, c) splitting the first frequency-domain signal into sub-bands, and d) generating a first parameter of the sub-bands based on a statistical measure of values of the sub-bands.
摘要翻译：一种产生表示头相关传递函数的参数的方法，所述方法包括以下步骤：a）使用产生第一时间离散的采样率（fs）以采样长度（n）采样第一时域HRTF脉冲响应信号信号，b）将第一时间离散信号变换到频域，产生第一频域信号，c）将第一频域信号分割为子带，以及d）基于子带的第一参数生成对子带值进行统计测量。

10. 发明授权

US08150042B2 Method, device, encoder apparatus, decoder apparatus and audio system 有权
标题翻译：方法，设备，编码器装置，解码装置和音频系统
公开(公告)号：US08150042B2
公开(公告)日：2012-04-03
申请号：US11571840
申请日：2005-07-07
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： Techniques are described for combining parametric multi-channel audio coding with matrixing, reconstructing a full-quality multi-channel, independent of the decoder. A stereo signal is obtained from encoding an N-channel audio signal into spatial parameters and a stereo down-mix signal having first and second stereo signals, including adding a first signal and a third signal to obtain a first output signal, the first signal having the first stereo signal modified by a first complex function, the third signal having the second stereo signal modified by a third complex function. A second signal and fourth signal are similarly added to obtain a second output signal. Complex functions are chosen such that an energy value of the difference between first signal and the second signals (fourth signal and third signals) is larger than or equal to the energy value of the sum of the first and the second signal (fourth signal and third signal).
摘要翻译：描述了将参数化多通道音频编码与矩阵相结合的技术，重建了独立于解码器的全质量多通道。通过将N声道音频信号编码为空间参数和具有第一和第二立体声信号的立体声缩混信号获得立体声信号，包括添加第一信号和第三信号以获得第一输出信号，所述第一信号具有由第一复合函数修改的第一立体声信号，具有由第三复合函数修改的第二立体声信号的第三信号。类似地添加第二信号和第四信号以获得第二输出信号。选择复数函数，使得第一信号和第二信号（第四信号和第三信号）之间的差的能量值大于或等于第一和第二信号之和的能量值（第四信号和第三信号信号）。

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