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1. 发明授权

EP1769491B1 AUDIO CHANNEL CONVERSION 有权转让
标题翻译：音频通道转换
公开(公告)号：EP1769491B1
公开(公告)日：2009-09-30
申请号：EP05765606.8
申请日：2005-07-11
申请人： Koninklijke Philips Electronics N.V. , Dolby Sweden AB
发明人： BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
IPC分类号： G10L19/00 , H04S5/00
CPC分类号： H04S5/005 , G10L19/008
摘要： A device (1) for converting a first number (M) of input audio channels into a second, larger number (N) of output audio channels comprises: decorrelation units (3) for decomposing the input audio channels into a set of decorrelated auxiliary channels, at least one upmix unit (4) for combining the decorrelated auxiliary channels into the output audio channels, and at least one pre-processing unit (2) for pre-processing the input audio channels and feeding the pre-processed input audio channels to the decorrelation units (3). The pre-processing unit (2) and the upmix unit (4) are preferably controlled by audio parameters.
摘要翻译：一种用于将第一数量（M）的输入音频通道转换为第二较大数量（N）的输出音频通道的设备（1）包括：去相关单元（3），用于将输入音频通道分解成一组去相关的辅助通道，至少一个用于将解相关的辅助通道组合成输出音频通道的上混单元（4），以及至少一个预处理单元（2），用于预处理输入音频通道并将预处理的输入音频通道馈送到解相关单元（3）。预处理单元（2）和上混单元（4）优选由音频参数控制。

2. 发明授权

EP1769655B1 METHOD, DEVICE, ENCODER APPARATUS, DECODER APPARATUS AND AUDIO SYSTEM 有权转让
标题翻译：方法，装置，编码器装置，解码器装置和音频系统
公开(公告)号：EP1769655B1
公开(公告)日：2011-09-28
申请号：EP05761091.7
申请日：2005-07-07
申请人： Koninklijke Philips Electronics N.V. , Dolby Sweden AB
发明人： VAN LOON, Machiel, W. , BREEBAART, Dirk, J. , HOTHO, Gerard, H. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
IPC分类号： H04S3/02
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： A method and a device for processing a stereo signal obtained from an encoder, which codes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (L 0 , R 0 ). A first signal and a third signal are added in order to obtain a first output signal (L 0w ), wherein the first signal QL 0wL ) comprises the first stereo signal (L 0 ) modified by a first complex function (g 1 ), and the third signal (L 0wR ) comprises the second stereo signal (R 0 ) modified by a third complex function (g 3 ). A second signal and a fourth signal are added to obtain a second output signal (R 0w ). The fourth signal (R 0wR ) comprises the second stereo signal (R 0 ) modified by a fourth complex function (g 4 ), and the second signal (R 0wL ) comprises the first stereo signal (L 0 ) modified by a second complex function (g 2 ). The complex functions (g 1 ,g 2 ,g 3 ,g 4 ) are functions of the spatial parameters (P) and are chosen such that an energy value of the difference (L 0wL -P 0wL ) between the first signal and the second signal is larger than or equal to the energy value of the sum (L 0wL +R 0wL ) of the first and the second signal and the energy value of the difference (R 0wR -L 0wR ) between the fourth signal and the third signal is larger than or equal to the energy value of the sum (R 0wR +L 0wR ) of the fourth signal and the third signal.
摘要翻译：描述了用于处理从编码器获得的立体声信号的方法和设备，该编码器将N声道音频信号编码为包括第一和第二立体声信号（Lo，R0）的空间参数（P）和立体声下混合。添加第一信号和第三信号以获得第一输出信号（低），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），并且第三信号（L0wR）包括由第三复函数（g3）修改的第二立体声信号（R0）。第二信号和第四信号被相加以获得第二输出信号（R0w）。第四信号（R0wR）包括由第四复合函数（g4）修改的第二立体声信号（R0），并且第二信号（R0wL）包括由第二复合函数（g2）修改的第一立体声信号（L0）。复数函数（g1，g2，g3，g4）是空间参数（P）的函数并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信号与第二信号的总和（LowL + R0wL）的能量值，并且第四信号与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总和（R0wR + L0wR）的值。

3. 发明申请

WO2007046048A1 METHOD OF DERIVING A SET OF FEATURES FOR AN AUDIO INPUT SIGNAL 审中-公开
标题翻译：为音频输入信号提供一组特征的方法
公开(公告)号：WO2007046048A1
公开(公告)日：2007-04-26
申请号：PCT/IB2006/053787
申请日：2006-10-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BREEBAART, Dirk, J. , MCKINNEY, Martin, F.
发明人： BREEBAART, Dirk, J. , MCKINNEY, Martin, F.
IPC分类号： G10H1/00
CPC分类号： G10H1/0008 , G10H2210/031 , G10H2210/041 , G10H2240/081
摘要： The invention describes a method of deriving a set of features (S) of an audio input signal (M), which method comprises identifying a number of first-order features (f 1 , f 2 , ... , f f ) of the audio input signal (M), generating a number of correlation values (ρ 1 , ρ 2 , ... , ρ I ) from at least part of the first-order features (f 1 , f 2 , ... , f f ), and compiling the set of features (S) for the audio input signal (M) using the correlation values (ρ 1 , ρ 2 , ..., ρ I ). The invention further describes a method of classifying an audio input signal (M) into a group, and a method of comparing audio input signals (M, M') to determine a degree of similarity between the audio input signals (M, M'). The invention also describes a system (1) for deriving a set of features (S) of an audio input signal (M), a classifying system (4) for classifying an audio input signal (M) into a group, and a comparison system (5) for comparing audio input signals (M, M') to determine a degree of similarity between the audio input signals (M, M').
摘要翻译：本发明描述了一种导出音频输入信号（M）的一组特征（S）的方法，该方法包括识别多个一阶特征（f 1，...，f 2）音频输入信号（M）的多个相关值（α<1>，＆lt; 2＆gt;，＆lt; 从第一阶特征（f 1 1，f 2，...，N 2）的至少一部分， ...，f＆lt; f＆lt;＆gt;），并且使用相关值（α＆lt; 1＆lt; 1＆lt; 1＆gt;，＆lt; SUB）来编译音频输入信号（M）的特征（S） > 2 ，...，... ）。本发明还描述了一种将音频输入信号（M）分类成一组的方法，以及一种比较音频输入信号（M，M'）以确定音频输入信号（M，M'）之间的相似程度的方法，。本发明还描述了一种用于导出音频输入信号（M）的一组特征（S）的系统（1），用于将音频输入信号（M）分类成一组的分类系统（4）和比较系统（5），用于比较音频输入信号（M，M'）以确定音频输入信号（M，M'）之间的相似度。

4. 发明申请

WO2006048817A1 ENCODING AND DECODING OF MULTI-CHANNEL AUDIO SIGNALS 审中-公开
标题翻译：多通道音频信号的编码和解码
公开(公告)号：WO2006048817A1
公开(公告)日：2006-05-11
申请号：PCT/IB2005/053550
申请日：2005-10-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HOTHO, Gerard, H. , MYBURG, Francois, P. , BREEBAART, Dirk, J.
发明人： HOTHO, Gerard, H. , MYBURG, Francois, P. , BREEBAART, Dirk, J.
IPC分类号： G10L19/00 , H04B1/66
CPC分类号： G10L19/008 , G10L21/028
摘要： An encoding device (1) for converting a first number (M) of input audio channels into a second, smaller number (N) of output audio channels comprises at least one conversion unit (12) for converting a first signal (Lf; Rf; Co) and a second signal (Lr; Rr; Le) into a third signal (L; R; C) and a fourth signal (Ls; Rs; Cs). The third, dominant signal contains most of the signal energy of the first and second signals, while the fourth, residual signal contains the remainder of said signal energy. The encoding device is arranged for using the third signal (L; R; C) to produce an output signal and for outputting the fourth signal (Ls; Rs; Cs). A decoding device (2) for converting a first number (N) of input audio channels into a second, larger number (M) of output audio channels comprises at least one conversion unit (24) for converting a first signal (L; R; C) and a second signal (Ld; Rd; Ld) into a third signal (Lf, Rf; Co) and a fourth signal (Lr; Rr; Le). The first, dominant signal contains most of the signal energy of the third and fourth signal, while the second, residual signal contains the remainder of said signal energy. The encoding device is arranged for receiving at least one-second signal (Ld; Rd; Cd).
摘要翻译：用于将输入音频通道的第一数量（M）转换为第二较小数量（N）个输出音频通道的编码设备（1）包括用于将第一信号（Lf; Rf; Co）和第二信号（Lr; Rr; Le）转换成第三信号（L; R; C）和第四信号（Ls; Rs; Cs）。第三个主要信号包含第一和第二信号的大部分信号能量，而第四个残差信号包含所述信号能量的剩余部分。编码装置被配置为使用第三信号（L; R; C）产生输出信号并输出第四信号（Ls; Rs; Cs）。用于将第一数量（N）个输入音频通道转换为第二较大数量（M）的输出音频通道的解码装置（2）包括至少一个转换单元（24），用于将第一信号（L; R; C）和第二信号（Ld; Rd; Ld）转换成第三信号（Lf，Rf; Co）和第四信号（Lr; Rr; Le）。第一个主要信号包含第三和第四信号的大部分信号能量，而第二个残差信号包含所述信号能量的剩余部分。编码装置被布置成用于接收至少一秒信号（Ld; Rd; Cd）。

5. 发明申请

WO2006048815A1 ENCODING AND DECODING A SET OF SIGNALS 审中-公开
标题翻译：编码和解码一组信号
公开(公告)号：WO2006048815A1
公开(公告)日：2006-05-11
申请号：PCT/IB2005/053548
申请日：2005-10-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , MYBURG, Francois, P. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P.
发明人： MYBURG, Francois, P. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P.
IPC分类号： G10L19/00
CPC分类号： G10L19/008
摘要： An encoding device (1) and method convert a set of signals (1, r) into a dominant signal (m) containing most signal energy, a residual signal (s) containing a remainder of the signal energy, and signal parameters (IID, ICC) associated with the conversion. The dominant signal (m) and selected parts of the residual signal (s) are encoded. Selecting parts of the residual signal involves a residual signal (s') passing perceptually relevant parts of the residual signal (s), attenuating perceptually less relevant parts of the residual signal and suppressing least relevant parts of the residual signal. An associated decoding device (2) and method decode the encoded dominant signal and the encoded residual signal so as to produce a decoded dominant signal (m' u ) and a decoded residual signal (s ' mod ) respectively. A synthetic residual signal (s' Syn ) is derived from the decoded dominant signal (m' u ) and is attenuated so as to produce an attenuated synthetic residual signal ( S’ Syn,mod). The attenuated synthetic residual signal (S ' Syn, mod ) and the decoded residual signal ( S’ mod) are combined to produce a reconstructed residual signal (s'). The decoded dominant signal (m') and the reconstructed residual signal (s') are then converted into a set of output signals (l', r').
摘要翻译：一种编码装置（1）和方法，将一组信号（1，r）转换成包含大多数信号能量的显性信号（m），包含信号能量余数的残余信号和信号参数（IID， ICC）与转换相关联。对主要信号（m）和剩余信号的选定部分进行编码。选择残余信号的部分包括通过残留信号的感知相关部分的残差信号（s'），衰减感知上较少的残余信号的相关部分并抑制残留信号的最小相关部分。相关联的解码装置（2）和方法对编码的主导信号和编码的残差信号进行解码，以便产生解码的主导信号（m'U>）和解码的残余信号（s' 模）_{分别。从解码的主导信号（m'）导出合成残差信号（s'S S ut），并且被衰减，以产生衰减的合成残差信号（ S'_{SYN，MOD）。衰减的合成残差信号（S / S）}}

6. 发明申请

WO2003063346A2 A METHOD FOR DECREASING THE DYNAMIC RANGE OF A SIGNAL AND ELECTRONIC CIRCUIT 审中-公开
标题翻译：一种降低信号和电子电路动态范围的方法
公开(公告)号：WO2003063346A2
公开(公告)日：2003-07-31
申请号：PCT/IB2002/005674
申请日：2002-12-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BREEBAART, Dirk, J.
发明人： BREEBAART, Dirk, J.
IPC分类号： H03G1/00
CPC分类号： H03G7/007
摘要： The invention relates to a method of decreasing the dynamic range of a signal comprising the steps of:- determining a property of the signal,- determining a limitation parameter based on the property of the signal, - limiting the signal by means of the limitation parameter, - clipping the limited signal.
摘要翻译：本发明涉及一种降低信号的动态范围的方法，包括以下步骤： - 确定信号的属性， - 基于信号的属性确定限制参数， - 借助于限制参数限制信号， - 剪切有限的信号。

7. 发明申请

WO2009107054A1 METHOD OF EMBEDDING DATA IN STEREO IMAGE 审中-公开
标题翻译：在立体图像中嵌入数据的方法
公开(公告)号：WO2009107054A1
公开(公告)日：2009-09-03
申请号：PCT/IB2009/050726
申请日：2009-02-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHUIJERS, Erik, G., P. , BREEBAART, Dirk, J. , OOMEN, Arnoldus, W., J.
发明人： SCHUIJERS, Erik, G., P. , BREEBAART, Dirk, J. , OOMEN, Arnoldus, W., J.
IPC分类号： G10L19/00
CPC分类号： G10L19/018 , G10L19/008
摘要： The invention relates to embedding a watermark into audio signals whilst taking account the binaural aspects of the human auditory system. The invention presents methods of embedding a watermark into a stereo or multichannel audio signal. These methods provide a robust watermarking to be used with various coding schemes of audio signals. The methods of the invention imply alteration of spatial image parameters of a stereo or multichannel system, viz. the inter-channel intensity difference (IID) and/or the inter- channel correlation (ICC), optionally supplemented by alterations of the inter-channel phase difference (IPD) and/or the inter-channel time difference (ITD).
摘要翻译：本发明涉及将水印嵌入音频信号，同时考虑到人类听觉系统的双耳方面。本发明提出了将水印嵌入到立体声或多声道音频信号中的方法。这些方法提供了一种用于音频信号的各种编码方案的鲁棒水印。本发明的方法意味着改变立体声或多声道系统的空间图像参数，即，信道间强度差异（IID）和/或信道间相关性（ICC），可选地补充信道间相位差（IPD）和/或信道间时间差（ITD）的改变。

8. 发明申请

WO2006008697A1 AUDIO CHANNEL CONVERSION 审中-公开
标题翻译：音频通道转换
公开(公告)号：WO2006008697A1
公开(公告)日：2006-01-26
申请号：PCT/IB2005/052293
申请日：2005-07-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , CODING TECHNOLOGIES AB , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
发明人： BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , PURNHAGEN, Heiko , RÖDÉN, Karl, J.
IPC分类号： G10L19/00
CPC分类号： H04S5/005 , G10L19/008
摘要： A device (1) for converting a first number (M) of input audio channels into a second, larger number (N) of output audio channels comprises: decorrelation units (3) for decomposing the input audio channels into a set of decorrelated auxiliary channels, at least one upmix unit (4) for combining the decorrelated auxiliary channels into the output audio channels, and at least one pre-processing unit (2) for pre-processing the input audio channels and feeding the pre-processed input audio channels to the decorrelation units (3). The pre-processing unit (2) and the upmix unit (4) are preferably controlled by audio parameters.
摘要翻译：用于将输入音频通道的第一数量（M）转换为第二，更大数量（N）的输出音频通道的设备（1）包括：用于将输入音频通道分解为一组去相关的辅助通道的解相关单元（3）至少一个用于将解相关辅助通道组合成输出音频通道的上混单元（4），以及至少一个预处理单元（2），用于预处理输入音频通道并将预处理的输入音频通道馈送到去相关单位（3）。预处理单元（2）和上混单元（4）优选地由音频参数控制。

9. 发明申请

WO2005098826A1 METHOD, DEVICE, ENCODER APPARATUS, DECODER APPARATUS AND AUDIO SYSTEM 审中-公开
标题翻译：方法，设备，编码器装置，解码器装置和音频系统
公开(公告)号：WO2005098826A1
公开(公告)日：2005-10-20
申请号：PCT/IB2005/051065
申请日：2005-03-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN LOON, Machiel, W. , HOTHO, Gerard, H. , BREEBAART, Dirk, J.
发明人： VAN LOON, Machiel, W. , HOTHO, Gerard, H. , BREEBAART, Dirk, J.
IPC分类号： G10L19/02
CPC分类号： H04S3/008 , G10L19/008 , H04S3/02 , H04S2420/03
摘要： Method for processing a stereo signal comprising: Encoding à 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 can be discribed as the matrix of the stereo signal, multiplied by a filter matrix (H) which element 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.
摘要翻译：用于处理立体声信号的方法，包括：在立体声信号（Lo，Ro）和空间参数（wl，wr）中编码N沟道音频信号，使用空间参数处理立体声信号，用于产生经处理的立体声信号（低，行）。经处理的立体声信号的矩阵可以被描述为立体声信号的矩阵，乘以滤波器矩阵（H），该滤波器矩阵（H）是使用空间参数（w1，wr）操作的滤波器函数（H1，H2，H3，H4）常数（a）。滤波器函数是时间不变的并被选择，使得矩阵是可逆的。

10. 发明申请

WO2005098824A1 MULTI-CHANNEL ENCODER 审中-公开
标题翻译：多通道编码器
公开(公告)号：WO2005098824A1
公开(公告)日：2005-10-20
申请号：PCT/IB2005/051040
申请日：2005-03-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , HOTHO, Gerard, H. , BREEBAART, Dirk, J. , VERBITSKIY, Evgeny, A. , DEN BRINKER, Albertus, C.
发明人： HOTHO, Gerard, H. , BREEBAART, Dirk, J. , VERBITSKIY, Evgeny, A. , DEN BRINKER, Albertus, C.
IPC分类号： G10L19/02
CPC分类号： G10L19/02 , G10L19/008 , G10L19/0204 , H04S3/008
摘要： There is described a method of encoding input signals (CHI to CH3; 400 to 450) in a multi-channel encoder (5; 15) to generate corresponding output data comprising down-mix output signals (610, 620) together with complementary parametric data (600). The method includes a first step of down-mixing input signals (CHI to CH3; 400 to 450) to generate the corresponding down-mix output signals (610, 620), and a second step of processing the input signals (CHI to CH3; 400 to 450) during down-mixing to generate said parametric data (600) complementary to the down-mix output signals (610, 620). Processing of the input signals (CHI to CH3; 400 to 450) involves including information in the down-mix signals (610, 620) which is useable during subsequent decoding of the down-mix output signals (610, 620) and the parametric data (600) to determine at least some parameter data and thereby enabling representations of the input signals (CHI to CH3; 400 to 450) to be subsequently regenerated. Coders for use in the encoder (5; 15) for performing essential signal processing operations therein are also elucidated.
摘要翻译：描述了在多通道编码器（5; 15）中对输入信号（CHI至CH3; 400至450）进行编码的方法，以生成包括下混合输出信号（610,620）的相应输出数据以及互补参数数据（600）。该方法包括将输入信号（CHI至CH3; 400至450）进行下混合以产生相应的下混合输出信号（610,620）的第一步骤，以及处理输入信号（CHI至CH3; 400至450），以产生与下混合输出信号（610,620）互补的所述参数数据（600）。输入信号（CHI至CH3; 400至450）的处理涉及将下变频信号（610,620）中的信息包括在下混频输出信号（610,620）和参数数据的后续解码期间可用的信息（600）以确定至少一些参数数据，从而使得能够随后再生所述输入信号（CHI至CH3; 400至450）的表示。还阐明了用于编码器（5; 15）中用于执行其中的基本信号处理操作的编码器。

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