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1. 发明公开

EP1866912A1 MULTI-CHANNEL AUDIO CODING 有权转让
标题翻译：多声道音频CODING
公开(公告)号：EP1866912A1
公开(公告)日：2007-12-19
申请号：EP06711112.0
申请日：2006-03-16
申请人： Koninklijke Philips Electronics N.V. , Coding Technologies Sweden AB
发明人： HOTHO, Gerard, H. , BREEBAART, Dirk, J. , SCHUIJERS, Erik, G., P. , DEN BRINKER, Albertus, C. , VILLEMOES, Lars, F. , PURNHAGEN, Heiko , RÖDEN, Karl, J.
IPC分类号： G10L19/00 , H04S3/00
CPC分类号： G10L19/008 , H04R2420/07 , H04S3/008
摘要： A multi-channel audio encoder (10) for encoding a multi-channel audio signal (101), e.g. a 5.1 channel audio signal, into a spatial down-mix (102), e.g. a stereo signal, and associated parameters (104, 105). The encoder (10) comprises first and second units (110, 120). The first unit (110) encodes the multi-channel audio signal (101) into the spatial down-mix (102) and parameters (104). These parameters (104) enable a multi-channel decoder (20) to reconstruct the multi-channel audio signal (203) from the spatial down-mix (102). The second unit (120) generates, from the spatial down-mix (102), parameters (105) that enable the decoder to reconstruct the spatial down-mix (202) from an alternative down-mix (103), e.g. a so-called artistic down-mix that has been manually mixed in a sound studio. In this way, the decoder (20) can efficiently deal with a situation in which an alternative down-mix (103) is received instead of the regular spatial, down-mix (102). In the decoder (20), first the spatial down-mix (202) is reconstructed from the alternative down-mix (103) and the parameters (105). Next, the spatial down-mix (202) is decoded into the multi-channel audio signal (203).

2. 发明公开

EP1769491A1 AUDIO CHANNEL CONVERSION 有权转让
标题翻译： TONKANALKONVERTIERUNG
公开(公告)号：EP1769491A1
公开(公告)日：2007-04-04
申请号：EP05765606.8
申请日：2005-07-11
申请人： Koninklijke Philips Electronics N.V. , Coding Technologies 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.

3. 发明授权

EP1523862B1 AUDIO CODING 有权转让
标题翻译：声音编码
公开(公告)号：EP1523862B1
公开(公告)日：2007-10-31
申请号：EP03738406.2
申请日：2003-06-19
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J.
IPC分类号： H04S3/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder (202) resulting in a first encoded signal (L) and a first set of encoding parameters (P2); encoding the first encoded signal and a further signal (R) by a second parametric encoder (201), resulting in a second encoded signal (T) and a second set of encoding parameters (P1), where the further signal is derived from at least the third signal component; and representing the multi-channel audio signal at least by a resulting encoded signal (T) derived from at least the second encoded signal, by the first set of encoding parameters and by the second set of encoding parameters.

4. 发明授权

EP1500083B1 PARAMETRIC MULTI-CHANNEL AUDIO REPRESENTATION 有权转让
标题翻译：多声道音频的参数说明
公开(公告)号：EP1500083B1
公开(公告)日：2006-06-28
申请号：EP03712597.8
申请日：2003-04-22
申请人： Koninklijke Philips Electronics N.V.
发明人： OOMEN, Arnoldus W., J. , SCHUIJERS, Erik, G., P. , BREEBAART, Dirk, J. , VAN DE PAR, Steven, L., J., D., E.
IPC分类号： G10L19/02
CPC分类号： G10L19/008 , G10L19/24 , H04S3/008 , H04S2420/03
摘要： Multi-channel audio signals are coded into a monaural audio signal and information allowing to recover the multi-channel audio signal from the monaural audio signal and the information. The information is generated by determining a first portion of the information for a first frequency region of the multi-channel audio signal, and by determining a second portion of the information for a second frequency region of the multi-channel audio signal. The second frequency region is a portion of the first frequency region and thus is a sub-range of the first frequency region. The information is multi-layered enabling a scaling of the decoding quality versus bit rate.

5. 发明公开

EP1595247A1 AUDIO CODING 有权转让
标题翻译：声音编码
公开(公告)号：EP1595247A1
公开(公告)日：2005-11-16
申请号：EP04709311.7
申请日：2004-02-09
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J. , OOMEN, Arnoldus, W., J.
IPC分类号： G10L19/00 , H04S5/00
CPC分类号： G10L19/008 , H04S1/007 , H04S2420/03
摘要： Parametric stereo coders use perceptually relevant parameters of the input signal to describe spatial properties. One of these parameters is the phase difference between the input signals (ITD or IPD). This time difference only determines the relative time difference between the input signals, without any information about how these time differences should be divided over the output signals in the decoder. An additional parameter is included in the encoded signal that describes how the ITD or IPD should be distributed between the output channels. To this goal the delay between a computed monaural signal and one of the input signals is used.

6. 发明公开

EP1595243A2 AUDIO REPRODUCTION APPARATUS, METHOD, COMPUTER PROGRAM 审中-公开
标题翻译：音频播放设备，方法，计算机程序
公开(公告)号：EP1595243A2
公开(公告)日：2005-11-16
申请号：EP04705874.8
申请日：2004-01-28
申请人： Koninklijke Philips Electronics N.V.
发明人： MCKINNEY, Martin, F. , BREEBAART, Dirk, J. , VAN DE PAR, Steven, L., J., D., E. , VAN PAEPEGEM, Ludovic, A., J.
IPC分类号： G10H1/00
CPC分类号： G09B19/0038 , A63B71/0686 , A63B2071/0625 , A63B2230/06 , A63B2230/062 , G06F19/3481 , G10H1/42 , G10H2210/076 , G10H2220/336 , G10H2220/371 , G10H2240/131 , G10L19/00 , G11B27/105 , G11B27/28
摘要： The audio reproduction apparatus (100) for sports training purposes comprises a tempo derivation unit (103) for deriving a selected tempo (T) on the basis of a data signal (dl, d2, d3) e.g. from a sports measurement device such as a heart rate meter; and an audio conditioning unit (104) arranged to deliver based on the input audio signal the output audio signal, with a tempo within a predefined accepted deviation from the selected tempo (T), whereby the audio conditioning unit (104) comprises a tempo calculation unit (106) arranged to calculate an input tempo (TI) of the input audio signal, and the audio conditioning unit (104) is arranged to deliver the output signal in dependence of the input tempo (TI).

7. 发明公开

EP1523862A1 AUDIO CODING 有权转让
标题翻译：声音编码
公开(公告)号：EP1523862A1
公开(公告)日：2005-04-20
申请号：EP03738406.2
申请日：2003-06-19
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J.
IPC分类号： H04S3/00
CPC分类号： G10L19/008 , H04S3/00 , H04S2420/03
摘要： A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder (202) resulting in a first encoded signal (L) and a first set of encoding parameters (P2); encoding the first encoded signal and a further signal (R) by a second parametric encoder (201), resulting in a second encoded signal (T) and a second set of encoding parameters (P1), where the further signal is derived from at least the third signal component; and representing the multi-channel audio signal at least by a resulting encoded signal (T) derived from at least the second encoded signal, by the first set of encoding parameters and by the second set of encoding parameters.

8. 发明公开

EP1500084A1 PARAMETRIC REPRESENTATION OF SPATIAL AUDIO 有权转让
标题翻译：空间的参数表示
公开(公告)号：EP1500084A1
公开(公告)日：2005-01-26
申请号：EP03715237.8
申请日：2003-04-22
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J. , VAN DE PAR, Steven, L., J., D., E.
IPC分类号： G10L19/02 , H04S3/00
CPC分类号： H04R5/00 , G10L19/008 , H04S3/008 , H04S2420/03
摘要： In summary, this application describes a psycho-acoustically motivated, parametric description of the spatial attributes of multichannel audio signals. This parametric description allows strong bitrate reductions in audio coders, since only one monaural signal has to be transmitted, combined with (quantized) parameters which describe the spatial properties of the signal. The decoder can form the original amount of audio channels by applying the spatial parameters. For near-CD-quality stereo audio, a bitrate associated with these spatial parameters of 10 kbit/s or less seems sufficient to reproduce the correct spatial impression at the receiving end.

9. 发明公开

EP2158791A1 A BINAURAL OBJECT-ORIENTED AUDIO DECODER 审中-公开
标题翻译：双耳面向对象音频解码器
公开(公告)号：EP2158791A1
公开(公告)日：2010-03-03
申请号：EP08763420.0
申请日：2008-06-23
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J.
IPC分类号： H04S1/00
CPC分类号： H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： A binaural object-oriented audio decoder comprising decoding means for decoding and rendering at least one audio object based on head-related transfer function parameters is proposed. Said decoding means are being arranged for positioning an audio object in a virtual three-dimensional space. Said head-related transfer function parameters are being based on an elevation parameter, an azimuth parameter, and a distance parameter. Said parameters are corresponding to the position of the audio object in the virtual three- dimensional space. The binaural object-oriented audio decoder is configured for receiving the head-related transfer function parameters, whereby said received head-related transfer function parameters are varying for the elevation parameter and the azimuth parameter only. Said binaural object-oriented audio decoder is characterized by distance processing means for modifying the received head-related transfer function parameters according to a received desired distance parameter. Said modified head-related transfer function parameters are being used to position the audio object in the three-dimensions at the desired distance. Said modification of the head-related transfer function parameters is based on a predetermined distance parameter for said received head-related function parameters.

10. 发明公开

EP1952281A2 METHOD OF GENERATING AND METHODS OF FILTERING A USER PROFILE 审中-公开
标题翻译：一种用于生成和方法用于过滤用户配置文件
公开(公告)号：EP1952281A2
公开(公告)日：2008-08-06
申请号：EP06821221.6
申请日：2006-10-27
申请人： Koninklijke Philips Electronics N.V.
发明人： BREEBAART, Dirk, J. , MCKINNEY, Martin, F.
IPC分类号： G06F17/30
CPC分类号： G06F17/30758 , G06F17/30743 , G06F17/30766
摘要： A method of generating a user profile (7;17,19;29) of a user of a device (14,15;23-26) for processing data representative of items of content, a respective recording of at least one perceptible content element being associated with each item of content, includes determining a set (3) containing a plurality of recordings of at least one perceptible content element, each associated with one of a plurality of items of content associated with the user, and generating data representative of a user profile (7;17,19;29) associating preferences of the user with the user, wherein the data representative of the user profile (7;17,19;29) includes one or more parameter values within an at least one-dimensional feature space, each dimension representing a property of at least a section of a recording of at perceptible content element, such that at least one of the dimensions in the feature space represents a quantifiable property of at least a section of a perceptible content element. At least one set of parameter values, each set containing at least one parameter value and quantifying a dimension of the feature space in the user profile (7;17,19;29), is obtained by applying a pre-determined analysis algorithm to each of a plurality of signals, each signal representing at least a section of a recording of at least one perceptible content element, such that the set of parameter values is based on a plurality of the recordings in the set of recordings.

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