公开(公告)号：US09620139B2

公开(公告)日：2017-04-11

申请号：US13807657

申请日：2011-06-17

申请人： Pierrick Philippe ,  David Virette ,  Claude Lamblin

发明人： Pierrick Philippe ,  David Virette ,  Claude Lamblin

IPC分类号： G10L21/00 ,  G10L19/06 ,  G10L13/00 ,  G06F11/00 ,  H03M7/30 ,  G10L19/18

CPC分类号： G10L21/00 ,  G10L19/06 ,  G10L19/18

摘要： A method of coding/decoding of a digital audio signal comprising a succession of consecutive blocks of data, on the basis of a predictive filter. A modified predictive filter is used for the coding of at least one current block, the modified filter being constructed by the combination of: a rear filter calculated for a past block, preceding the current block, and enrichment parameters for the rear filter, which are determined as a function of the signal in the current block and comprising the coefficients of a modifying filter.

公开(公告)号：US20130103408A1

公开(公告)日：2013-04-25

申请号：US13807657

申请日：2011-06-17

申请人： Pierrick Philippe ,  David Virette ,  Claude Lamblin

发明人： Pierrick Philippe ,  David Virette ,  Claude Lamblin

IPC分类号： G10L21/00

CPC分类号： G10L21/00 ,  G10L19/06 ,  G10L19/18

摘要： A method of coding/decoding of a digital audio signal comprising a succession of consecutive blocks of data, on the basis of a predictive filter. A modified predictive filter is used for the coding of at least one current block, the modified filter being constructed by the combination of: a rear filter calculated for a past block, preceding the current block, and enrichment parameters for the rear filter, which are determined as a function of the signal in the current block and comprising the coefficients of a modifying filter.

摘要翻译： 一种基于预测滤波器对包括一系列连续的数据块的数字音频信号进行编码/解码的方法。 经修改的预测滤波器用于至少一个当前块的编码，修改的滤波器由以下组合构成：对于当前块之前的过去块计算的后滤波器和后滤波器的浓缩参数 作为当前块中的信号的函数确定并且包括修正滤波器的系数。

公开(公告)号：US09847085B2

公开(公告)日：2017-12-19

申请号：US13995718

申请日：2011-12-16

申请人： Pierrick Philippe ,  David Virette

发明人： Pierrick Philippe ,  David Virette

IPC分类号： G10L19/00 ,  G10L19/26 ,  G10L19/02 ,  G10L19/022

CPC分类号： G10L19/00 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/26

摘要： A method for processing a signal in the form of consecutive sample blocks, the method comprising filtering in a transformed domain of sub-bands, and particularly equalization processing, applied to a current block in the transformed domain, and filtering-adjustment processing that is applied in the transformed domain to at least one block adjacent to the current block.

公开(公告)号：US08788555B2

公开(公告)日：2014-07-22

申请号：US13056154

申请日：2009-07-03

申请人： Pierrick Philippe ,  David Virette

发明人： Pierrick Philippe ,  David Virette

IPC分类号： G06F17/17

CPC分类号： G10L19/0212 ,  H03H17/0264

摘要： A method for updating the processing capacity of an encoder or decoder to use a modulated transform having a size greater than a predetermined initial size is provided, particularly, where the encoders or decoders are for storing an initial prototype filter defined by an ordered set of initial size coefficients. A step is provided for constructing a prototype filter of a size greater than the initial size to implement the modulated transform of the greater size by inserting at least one coefficient between two consecutive coefficients of the initial prototype filter.

摘要翻译： 提供了一种用于更新编码器或解码器以使用尺寸大于预定初始尺寸的调制变换的处理能力的方法，特别地，其中编码器或解码器用于存储由初始化的有序集合定义的初始原型滤波器 尺寸系数。 提供了一个步骤，用于构建大于初始尺寸的原型滤波器，以通过在初始原型滤波器的两个连续系数之间插入至少一个系数来实现较大尺寸的调制变换。

公开(公告)号：US20110129092A1

公开(公告)日：2011-06-02

申请号：US13056169

申请日：2009-07-03

申请人： David Virette ,  Pierrick Philippe

发明人： David Virette ,  Pierrick Philippe

IPC分类号： H04R5/00

CPC分类号： G10L19/008 ,  G10L19/005 ,  H04R2420/03 ,  H04S3/02

摘要： A method for processing sound data is provided for the reconstruction of multi-channel audio data on the basis at least of data on a reduced number of channels and of spatialization data. A test is carried out to determine whether the spatialization data received are valid. If the test is positive, a spatialization value is predicted according to a per respective model of a plurality of models. A prediction model is chosen on the basis of the spatialization values thus predicted and on the basis of the spatialization data received, to permit, in case of subsequent reception of defective spatialization data, a prediction according to this chosen model of a spatialization value and to use this predicted spatialization value for the reconstruction of the multi-channel audio data.

摘要翻译： 提供用于处理声音数据的方法，用于至少基于减少数量的信道和空间数据的数据的重建多声道音频数据。 进行测试以确定接收到的空间化数据是否有效。 如果测试是正的，则根据多个模型的每个相应模型来预测空间化值。 基于如此预测的空间化值，并且基于所接收的空间化数据来选择预测模型，以便在随后接收不合格的空间数据的情况下，根据该空间化值的所选择的模型进行预测，并且 使用该预测的空间化值来重建多声道音频数据。

公开(公告)号：US08615390B2

公开(公告)日：2013-12-24

申请号：US12448734

申请日：2007-12-18

申请人： Balazs Kovesi ,  David Virette ,  Pierrick Philippe

发明人： Balazs Kovesi ,  David Virette ,  Pierrick Philippe

IPC分类号： G06F15/00 ,  G10L19/00 ,  G10L25/00 ,  G10L21/00 ,  G10L25/90 ,  G10L21/02

CPC分类号： G10L19/022

摘要： The invention relates to transform coding/decoding of a digital audio signal represented by a succession of frames, using windows of different lengths. For the coding within the meaning of the invention, it is sought to detect (51) a particular event, such as an attack, in a current frame (Ti); and, at least if said particular event is detected at the start of the current frame (53), a short window (54) is directly applied in order to code (56) the current frame (Ti) without applying a transition window. Thus, the coding has a reduced delay in relation to the prior art. In addition, an ad hoc processing is applied during decoding in order to compensate for the direct passage from a long window to a short window during coding.

摘要翻译： 本发明涉及使用不同长度的窗口的由一系列帧代表的数字音频信号的变换编码/解码。 对于本发明意义上的编码，寻求在当前帧（Ti）中检测（51）特定事件，例如攻击; 并且至少如果在当前帧（53）的开始处检测到所述特定事件，则直接应用短窗口（54），以便在不应用转换窗口的情况下对当前帧（Ti）进行编码（56）。 因此，与现有技术相比，编码具有减小的延迟。 此外，在解码期间应用ad hoc处理，以补偿在编码期间从长窗口到短窗口的直接传递。

公开(公告)号：US20110178809A1

公开(公告)日：2011-07-21

申请号：US13120473

申请日：2009-10-05

申请人： Pierrick Philippe ,  David Virette

发明人： Pierrick Philippe ,  David Virette

IPC分类号： G10L19/00

CPC分类号： G10L19/022 ,  G10L19/0212 ,  G10L19/04 ,  G10L19/107 ,  G10L19/20

摘要： A method for encoding and decoding a digital audio signal is provided, said method comprising the steps of: encoding a first sequence of samples of the digital signal according to a transform encoding; encoding a second sequence of samples of the digital signal according to a predictive encoding; wherein the second sequence starts before the end of the first sequence, a subsequence common to the first and second sequences being thus encoded both by predictive encoding and by transform encoding.

摘要翻译： 提供了一种对数字音频信号进行编码和解码的方法，所述方法包括以下步骤：根据变换编码对数字信号的第一采样序列进行编码; 根据预测编码对数字信号的第二采样序列进行编码; 其中所述第二序列在所述第一序列结束之前开始，因此通过预测编码和通过变换编码对所述第一和第二序列共同的子序列进行编码。

公开(公告)号：US20110145310A1

公开(公告)日：2011-06-16

申请号：US13056154

申请日：2009-07-03

申请人： Pierrick Philippe ,  David Virette

发明人： Pierrick Philippe ,  David Virette

IPC分类号： G06F17/17

CPC分类号： G10L19/0212 ,  H03H17/0264

摘要： A method for updating the processing capacity of an encoder or decoder to use a modulated transform having a size greater than a predetermined initial size is provided, particularly, where the encoders or decoders are for storing an initial prototype filter defined by an ordered set of initial size coefficients. A step is provided for constructing a prototype filter of a size greater than the initial size to implement the modulated transform of the greater size by inserting at least one coefficient between two consecutive coefficients of the initial prototype filter.

摘要翻译： 提供了一种用于更新编码器或解码器以使用尺寸大于预定初始尺寸的调制变换的处理能力的方法，特别地，其中编码器或解码器用于存储由初始化的有序集合定义的初始原型滤波器 尺寸系数。 提供了一个步骤，用于构建大于初始尺寸的原型滤波器，以通过在初始原型滤波器的两个连续系数之间插入至少一个系数来实现较大尺寸的调制变换。

公开(公告)号：US20110007827A1

公开(公告)日：2011-01-13

申请号：US12920352

申请日：2009-03-20

申请人： David Virette ,  Pierrick Philippe ,  Balazs Kovesi

发明人： David Virette ,  Pierrick Philippe ,  Balazs Kovesi

IPC分类号： H04L27/00

CPC分类号： G10L19/005 ,  G10L19/0212 ,  G10L19/24

摘要： A method is provided for concealing a transmission error in a digital signal chopped into a plurality of successive frames associated with different time intervals in which, on reception, the signal may comprise erased frames and valid frames, the valid frames comprising information relating to the concealment of frame loss. The method is implemented during a hierarchical decoding using a core decoding and a transform-based decoding using windows introducing a time delay of less than a frame with respect to the core decoding. The method includes concealing a first set of missing samples for the erased frame, implemented in a first time interval; a step of concealing a second set of missing samples utilizing information of said valid frame and implemented in a second time interval; and a step of transition between the first and the second set of missing samples to obtain at least part of the missing frame.

摘要翻译： 提供了一种隐藏在剁碎成与不同时间间隔相关联的多个连续帧中的数字信号中的传输错误的方法，其中在接收时，信号可以包括被擦除的帧和有效帧，该有效帧包括与隐藏有关的信息 的帧丢失。 该方法在使用核心解码和使用引入相对于核心解码的小于帧的时间延迟的窗口的基于变换的解码的分层解码期间实现。 该方法包括在第一时间间隔内隐藏针对被擦除的帧的第一组缺失样本集; 利用所述有效帧的信息隐藏第二组丢失样本并在第二时间间隔内实现的步骤; 以及在第一组和第二组缺失样本之间转换以获得缺失帧的至少一部分的步骤。

公开(公告)号：US08880411B2

公开(公告)日：2014-11-04

申请号：US13120473

申请日：2009-10-05

申请人： Pierrick Philippe ,  David Virette

发明人： Pierrick Philippe ,  David Virette

IPC分类号： G10L21/00 ,  G10L19/022 ,  H04R5/00 ,  H04B1/00 ,  G10L19/02 ,  G10L19/107 ,  G10L19/20 ,  G10L19/04

CPC分类号： G10L19/022 ,  G10L19/0212 ,  G10L19/04 ,  G10L19/107 ,  G10L19/20

摘要： A method for encoding and decoding a digital audio signal is provided, said method comprising the steps of: encoding a first sequence of samples of the digital signal according to a transform encoding; encoding a second sequence of samples of the digital signal according to a predictive encoding; wherein the second sequence starts before the end of the first sequence, a subsequence common to the first and second sequences being thus encoded both by predictive encoding and by transform encoding.

摘要翻译： 提供了一种对数字音频信号进行编码和解码的方法，所述方法包括以下步骤：根据变换编码对数字信号的第一采样序列进行编码; 根据预测编码对数字信号的第二采样序列进行编码; 其中所述第二序列在所述第一序列结束之前开始，因此通过预测编码和通过变换编码对所述第一和第二序列共同的子序列进行编码。