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31. 发明申请

WO2005024784A1 ENCODING OF TRANSIENT AUDIO SIGNAL COMPONENTS 审中-公开
标题翻译：编码瞬态音频信号组件
公开(公告)号：WO2005024784A1
公开(公告)日：2005-03-17
申请号：PCT/IB2004/051572
申请日：2004-08-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , GERRITS, Andreas, J. , DEN BRINKER, Albertus, C.
发明人： GERRITS, Andreas, J. , DEN BRINKER, Albertus, C.
IPC分类号： G10L19/08
CPC分类号： G10L19/093
摘要： A method of encoding (1) an audio signal (x(t) is disclosed. The position of a transient signal component of the audio signal is estimated (110). A first portion (ti) of the transient signal component is modeled (111) with a first plurality of sinusoidal components. A difference (d) between the first portion (ti) of the transient signal component and the transient signal component is estimated. The difference is modeled with a measure (E) of the energy of the difference; and the measure (E) is included in an audio stream (AS).
摘要翻译：公开了一种编码（1）音频信号（x（t））的方法，估计音频信号的瞬态信号分量的位置（110），对瞬态信号分量的第一部分（ti）进行建模（111 ）与第一多个正弦分量相乘，估计瞬态信号分量的第一部分（ti）与瞬态信号分量之间的差（d），该差异用差的能量的测量（E） ;并且测量（E）被包括在音频流（AS）中。

32. 发明申请

WO2005008628A1 LOW BIT-RATE AUDIO ENCODING 审中-公开
标题翻译：低比特率音频编码
公开(公告)号：WO2005008628A1
公开(公告)日：2005-01-27
申请号：PCT/IB2004/051172
申请日：2004-07-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , GERRITS, Andreas, J. , DEN BRINKER, Albertus, C.
发明人： GERRITS, Andreas, J. , DEN BRINKER, Albertus, C.
IPC分类号： G10L19/08
CPC分类号： G10L19/093
摘要： In a sinusoidal audio encoder a number of sinusoids are estimated per audio segment. A sinusoid is represented y frequency, amplitude and phase. Normally, phase is quantised independent of frequency The invention uses a frequency dependent quantisation of phase, and in particular the low f equencies are quantised using smaller quantisation intervals than at higher frequencies. Thus, the unwrapped phases of the lower frequencies are quantised more accurately, possibly with a smaller quantisation range, than the phases of the higher frequencies. The invention gives a significant improvement in decoded signal quality, especially for low bit-rate quantisers
摘要翻译：在正弦音频编码器中，每个音频段估计出多个正弦波。正弦曲线表示y频率，振幅和相位。通常，相位与频率无关地量化本发明使用相位的频率相关量化，并且特别地，使用比在较高频率下更小的量化间隔量化低f等值。因此，与较高频率的相位相比，更准确地量化更低频率的展开相位，可能具有较小的量化范围。本发明给出了解码信号质量的显着改进，特别是对于低比特率量化器

33. 发明申请

WO2004051627A1 AUDIO CODING 审中-公开
标题翻译：音频编码
公开(公告)号：WO2004051627A1
公开(公告)日：2004-06-17
申请号：PCT/IB2003/005019
申请日：2003-11-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SLUIJTER, Robert, J. , DEN BRINKER, Albertus, C. , GERRITS, Andreas, J.
发明人： DEN BRINKER, Albertus, C. , GERRITS, Andreas, J.
IPC分类号： G10L19/08
CPC分类号： G10L19/093
摘要： Coding of an audio signal represented by a respective set of sampled signal values for each of a plurality of sequential segments is disclosed. The sampled signal values are analysed (40) to determine one or more sinusoidal components for each of the plurality of sequential segments. The sinusoidal components are linked (42) across a plurality of sequential segments to provide sinusoidal tracks. For each sinusoidal track, a phase comprising a generally monotonically changing value is determined and an encoded audio stream including sinusoidal codes (r) representing said phase is generated (46).
摘要翻译：公开了由多个连续段中的每一个的相应的一组采样信号值表示的音频信号的编码。分析采样的信号值（40）以确定多个连续段中的每一个的一个或多个正弦分量。正弦分量连接（42）跨越多个顺序段以提供正弦曲线。对于每个正弦曲线，确定包括通常单调变化的值的相位，并且生成包括表示所述相位的正弦代码（r）的编码音频流（46）。

34. 发明申请

WO2004036550A1 SINUSOIDAL AUDIO CODING WITH PHASE UPDATES 审中-公开
标题翻译： SINUSOIDAL音频编码与相位更新
公开(公告)号：WO2004036550A1
公开(公告)日：2004-04-29
申请号：PCT/IB2003/004232
申请日：2003-09-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , GERRITS, Andreas, J. , DEN BRINKER, Albertus, C. , HOTHO, Gerard, H.
发明人： GERRITS, Andreas, J. , DEN BRINKER, Albertus, C. , HOTHO, Gerard, H.
IPC分类号： G10L19/02
CPC分类号： G10L19/0212
摘要： Coding of an audio signal (x) represented by a respective set of sampled signal values for each of a plurality of sequential segments is disclosed. The sampled signal values are analyzed (130) to generate one or more sinusoidal components (f k ,f k-1 ) for each of the plurality of sequential segments. Sinusoidal codes (CS) comprising tracks of linked sinusoidal components (f k ,f k-1 ) are generated (13) and phase update information (Φ k , Δ k ) indicative of the phase value of selected sinusoidal components in a track is determined. An encoded audio stream (AS) including said sinusoidal codes (CS) and said phase update information (Φ k , Δ k ) is then generated (15).
摘要翻译：公开了由多个连续段中的每一个的相应的一组采样信号值表示的音频信号（x）的编码。分析采样的信号值（130）以为多个连续段中的每一个生成一个或多个正弦分量（fk，fk-1）。产生包括链接的正弦分量（fk，fk-1）的轨道的正弦码（CS）（13），并且确定指示轨道中所选择的正弦分量的相位值的相位更新信息（Phik，Deltak）。然后生成包括所述正弦码（CS）和所述相位更新信息（Phik，Deltak）的编码音频流（AS）（15）。

35. 发明授权

EP1761915B1 METHOD AND APPARATUS TO ENCODE AND DECODE MULTI-CHANNEL AUDIO SIGNALS 有权
标题翻译： FOR编码的方法和装置和解码多声道音频
公开(公告)号：EP1761915B1
公开(公告)日：2008-12-03
申请号：EP05746699.7
申请日：2005-06-14
申请人： Koninklijke Philips Electronics N.V.
发明人： DEN BRINKER, Albertus, C.
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/04 , G10L25/12 , G10L25/27
摘要： An encoder (100) for encoding a multi-channel audio signal comprises a prediction processor (101) which generates two residual signals for two signal components of the multi-channel signal by linear prediction which is associated with psycho-acoustic prediction filters. A rotation processor (105) rotates the combined signal of the two residual signals to generate a main signal and a side signal. Preferably, the energy of the main signal is maximized and the energy of the side signal is minimized. An encoding processor (109) encodes the main and preferably the side signal and an output processor (111) generates an output signal comprising the encoded main data and preferably the side data, prediction parameters and rotation parameters. The combination of linear prediction, use of psycho-acoustic characteristics and the general encoder (100) for encoding a multi-channel signal comprises a prediction processor (101) which generates two residual signals for two signal components of the multi-channel signal by linear prediction which is associated with psycho-acoustic characteristics and which specifically uses psycho-acoustic prediction filters. A rotation processor (105) rotates the combined signal of the two residual signals to generate a main signal and a side signal. Preferably, the energy of the main signal is maximized and the energy of the side signal is minimized. An encoding processor (109) encodes the main and preferably the side signal and an output processor (111) generates an output signal comprising the encoded main data and preferably the side data, prediction parameters and rotation parameters. The combination of linear prediction, use of psycho-acoustic characteristics and the generation of a main and side signal improves encoding and enhances the flexibility of the encoder for different data rates.

36. 发明公开

EP1851752A1 SOUND SYNTHESIS 有权
标题翻译：声音合成
公开(公告)号：EP1851752A1
公开(公告)日：2007-11-07
申请号：EP06710801.9
申请日：2006-02-01
申请人： Koninklijke Philips Electronics N.V.
发明人： SZCZERBA, Marek , DEN BRINKER, Albertus, C. , GERRITS, Andreas, J. , OOMEN, Arnoldus, W., J. , KLEIN MIDDELINK, Marc
IPC分类号： G10H7/00
CPC分类号： G10H7/00 , G10H1/22 , G10H2230/041 , G10H2250/495
摘要： A device (1) is arranged for synthesizing sound represented by sets of parameters, each set comprising noise parameters (NP) representing noise components of the sound and optionally also other parameters representing other components, such as transients and sinusoids. Each set of parameters may correspond with a sound channel, such as a MIDI voice. In order to reduce the computational load, the device comprises a selection unit (2) for selecting a limited number of sets from the total number of sets on the basis of a perceptual relevance value, such as the amplitude or energy. The device further comprises a synthesizing unit (3) for synthesizing the noise components using the noise parameters of the selected sets only.

37. 发明公开

EP1735777A1 MULTI-CHANNEL ENCODER 审中-公开
标题翻译： MEHRKANAL-CODIERER
公开(公告)号：EP1735777A1
公开(公告)日：2006-12-27
申请号：EP05718571.2
申请日：2005-03-25
申请人： Koninklijke Philips Electronics N.V.
发明人： HOTHO, Gerard, H. , BREEBAART, Dirk, J. , VERBITSKIY, Evgeny, A. , DEN BRINKER, Albertus, C.
IPC分类号： G10L19/02 , H04S1/00 , H04S3/00
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（CH1至CH3; 400至450）进行编码的方法，以生成相应的输出数据，包括下混合输出信号（610,620）以及互补参数数据（600）。该方法包括将输入信号（CH1至GH3; 400至450）下变频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（CH1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（CH1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合输出信号（610,620）的随后解码期间可用的信息和参数数据（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（CH1至CH3; 400至450）的表示。还阐明了用于在编码器（5; 15）中进行基本信号处理操作的编码器。

38. 发明公开

EP1692688A1 AUDIO CODING 审中-公开
标题翻译：音频编码
公开(公告)号：EP1692688A1
公开(公告)日：2006-08-23
申请号：EP04799235.9
申请日：2004-11-24
申请人： Koninklijke Philips Electronics N.V.
发明人： GERRITS, Andreas, J. , DEN BRINKER, Albertus, C. , RIERA PALOU, Felip
IPC分类号： G10L19/14 , G10L19/08 , G10L19/10
CPC分类号： G10L19/093 , G10L19/10 , G10L19/24
摘要： An audio coder is arranged to process a respective set of sampled signal values for each of a plurality of sequential segments of an audio signal (x). The coder comprises an analyser (TSA) arranged to analyse the sampled signal values to provide one or more sinusoidal codes (Cs) corresponding to respective sinusoidal components of the audio signal. A subtractor subtracts a signal corresponding to the sinusoidal components from the audio signal to provide a first residual signal (r1). A modeller (SEG) models the frequency spectrum of the first residual signal (r1) by determining first filter parameters (Ps) of a filter which has a frequency response approximating a frequency spectrum of the first residual signal. Another subtractor subtracts a signal corresponding to the first filter parameters from the first residual signal to provide a second residual signal (r2). Another modeller (RPE) models a component (r2,r3) of the second residual signal with a pulse train coder (RPE) to provide respective pulse train parameters (L0). A bit stream generator (15) generates an encoded audio stream (AS) including the sinusoidal codes (Cs), the first filter parameters (Ps) and the pulse train parameters (L0).
摘要翻译：音频编码器被设置为处理音频信号（x）的多个连续段中的每一个的相应的一组采样信号值。编码器包括分析器（TSA），其被设置为分析采样的信号值以提供与音频信号的相应正弦分量相对应的一个或多个正弦码（Cs）。减法器从音频信号中减去对应于正弦分量的信号以提供第一残差信号（r1）。建模器（SEG）通过确定具有近似于第一残差信号的频谱的频率响应的滤波器的第一滤波器参数（Ps）来对第一残差信号（r1）的频谱进行建模。另一减法器从第一残余信号中减去对应于第一滤波器参数的信号以提供第二残余信号（r2）。另一个建模器（RPE）用脉冲编码器（RPE）建模第二个剩余信号的分量（r2，r3），以提供相应的脉冲序列参数（L0）。比特流生成器（15）生成包括正弦码（Cs），第一滤波器参数（Ps）和脉冲串参数（L0）的编码音频流（AS）。

39. 发明授权

EP1514262B1 AUDIO CODING 有权
标题翻译：编码的音频信号
公开(公告)号：EP1514262B1
公开(公告)日：2006-08-16
申请号：EP03722975.4
申请日：2003-05-16
申请人： Koninklijke Philips Electronics N.V.
发明人： DEN BRINKER, Albertus, C.
IPC分类号： G10L19/04
CPC分类号： G10L19/04 , G10L25/12
摘要： A method of encoding ( 14 ) an audio signal (x(n)) is disclosed. The method comprises the step of modelling ( 16 ) the audio signal in accordance with a frequency sensitizing parameter (( ) to provide a set of infinite impulse response (IIR) filter type characteristics (( 0 . . . k-1) of an order K and capable of being linearly combined with the sensitizing parameter (( ) to provide an estimate ( ) for the audio signal (x(n)), the IIR type filter model satisfying the requirements of a minimum phase filter. The set of characteristics (( 0 . . . k-1) of order K are transformed as a function of the sensitizing parameter (( ) to provide a set of characteristics (c 0 . . . k) of order K+1 compatible with finite impulse response (FIR) filter type characteristics satisfying the requirements of a minimum phase filter. The set of characteristics (c 0 . . . k) of order K+1 are normalised to provide a set of characteristics (d 1 . . . k) of order K. An encoded audio stream ( 50 ) is generated to include representations (LAR,LSFs) of the normalised set of characteristics (d 1 . . . k) of order K.

40. 发明公开

EP1568012A1 AUDIO CODING 有权
标题翻译：音频解码
公开(公告)号：EP1568012A1
公开(公告)日：2005-08-31
申请号：EP03758591.6
申请日：2003-11-06
申请人： Koninklijke Philips Electronics N.V.
发明人： DEN BRINKER, Albertus, C. , GERRITS, Andreas, J. , SLUIJTER, Robert J.
IPC分类号： G10L19/08
CPC分类号： G10L19/093
摘要： Coding of an audio signal represented by a respective set of sampled signal values for each of a plurality of sequential segments is disclosed. The sampled signal values are analysed (40) to determine one or more sinusoidal components for each of the plurality of sequential segments. The sinusoidal components are linked (42) across a plurality of sequential segments to provide sinusoidal tracks. For each sinusoidal track, a phase comprising a generally monotonically changing value is determined and an encoded audio stream including sinusoidal codes (r) representing said phase is generated (46).

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