公开(公告)号：US08370133B2

公开(公告)日：2013-02-05

申请号：US12675290

申请日：2008-08-26

Applicant: Anisse Taleb ,  Manuel Briand ,  Gustaf Ullberg

Inventor： Anisse Taleb ,  Manuel Briand ,  Gustaf Ullberg

IPC: G10L19/00

CPC classification number: G10L19/028 ,  G10L19/035 ,  G10L21/0364

Abstract: A method for perceptual spectral decoding comprises decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling comprises noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain. A perceptual spectral decoder comprises a noise filler, operating according to the method for perceptual spectral decoding.

Abstract translation: 用于感知频谱解码的方法包括将从二进制通量恢复的频谱系数解码为初始频谱系数集合的解码频谱系数。 频谱系数的初始集合是频谱填充的。 频谱填充包括通过将频谱系数的初始集合中的频谱系数设置为不等于从解码频谱系数导出的元素的二进制通量来解码频谱孔的噪声填充。 通过频谱填充形成的频域的重构频谱系数的集合被转换成时域的音频信号。 感知频谱解码器包括根据用于感知频谱解码的方法操作的噪声填充器。

公开(公告)号：US09269372B2

公开(公告)日：2016-02-23

申请号：US12674341

申请日：2008-08-26

Applicant: Gustaf Ullberg ,  Anisse Taleb ,  Manuel Briand

Inventor： Gustaf Ullberg ,  Anisse Taleb ,  Manuel Briand

IPC: G10L19/02 ,  G10L19/005 ,  G10L19/028 ,  G10L21/038 ,  G10L19/035

CPC classification number: G10L19/028 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/035 ,  G10L21/038

Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining (210) of an initial set of spectral coefficients representing the audio signal, and determining (212) a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled (214) and the initial set of spectral coefficients are bandwidth extended (216) above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.

Abstract translation: 一种用于音频信号的频谱解码中的频谱恢复的方法，包括获得（210）表示所述音频信号的初始频谱系数集合，以及确定（212）转换频率。 转换频率适应于音频信号的频谱内容。 在转换频率之下的初始频谱系数集中的光谱孔被噪声填充（214），并且频谱系数的初始集合在过渡频率之上的带宽扩展（216）。 还示出了用于执行部分或整个方法的解码器和编码器。

公开(公告)号：US20110264454A1

公开(公告)日：2011-10-27

申请号：US12674341

申请日：2008-08-26

Applicant: Gustaf Ullberg ,  Anisse Taleb ,  Manuel Briand

Inventor： Gustaf Ullberg ,  Anisse Taleb ,  Manuel Briand

IPC: G10L19/00

CPC classification number: G10L19/028 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/035 ,  G10L21/038

Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining (210) of an initial set of spectral coefficients representing the audio signal, and determining (212) a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled (214) and the initial set of spectral coefficients are bandwidth extended (216) above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.

Abstract translation: 一种用于音频信号的频谱解码中的频谱恢复的方法，包括获得（210）表示所述音频信号的初始频谱系数集合，以及确定（212）转换频率。 转换频率适应于音频信号的频谱内容。 低于转换频率的初始频谱系数集中的光谱孔被噪声填充（214），并且频谱系数的初始集合在过渡频率之上的带宽扩展（216）。 还示出了用于执行部分或整个方法的解码器和编码器。

公开(公告)号：US20110035212A1

公开(公告)日：2011-02-10

申请号：US12674117

申请日：2008-08-26

Applicant: Manuel Briand ,  Anisse Taleb

Inventor： Manuel Briand ,  Anisse Taleb

IPC: G10L21/00 ,  G10L19/02

CPC classification number: G10L19/0204 ,  G10L19/0212 ,  G10L19/035

Abstract: In a method of perceptual transform coding of audio signals in a telecommunication system, performing the steps of determining transform coefficients representative of a time to frequency transformation of a time segmented input audio signal; determining a spectrum of perceptual sub-bands for said input audio signal based on said determined transform coefficients; determining masking thresholds for each said sub-band based on said determined spectrum; computing scale factors for each said sub-band based on said determined masking thresholds, and finally adapting said computed scale factors for each said sub-band to prevent energy loss for perceptually relevant sub-bands.

Abstract translation: 在电信系统中对音频信号的感知变换编码的方法中，执行以下步骤：确定表示时间分段输入音频信号的时间到频率变换的变换系数; 基于所述确定的变换系数确定所述输入音频信号的感知子带的频谱; 基于所述确定的频谱确定每个所述子带的掩蔽阈值; 基于所述确定的掩蔽阈值计算每个所述子带的比例因子，并且最后适应每个所述子带的所述计算的比例因子以防止感知相关子带的能量损失。

公开(公告)号：US20100241437A1

公开(公告)日：2010-09-23

申请号：US12675290

申请日：2008-08-26

Applicant: Anisse Taleb ,  Manuel Briand ,  Gustaf Ullberg

Inventor： Anisse Taleb ,  Manuel Briand ,  Gustaf Ullberg

IPC: G10L19/00

CPC classification number: G10L19/028 ,  G10L19/035 ,  G10L21/0364

Abstract: A method for perceptual spectral decoding comprises decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling comprises noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain. A perceptual spectral decoder comprises a noise filler, operating according to the method for perceptual spectral decoding.

Abstract translation: 用于感知频谱解码的方法包括将从二进制通量恢复的频谱系数解码为初始频谱系数集合的解码频谱系数。 频谱系数的初始集合是频谱填充的。 频谱填充包括通过将频谱系数的初始集合中的频谱系数设置为不等于从解码频谱系数导出的元素的二进制通量来解码频谱孔的噪声填充。 通过频谱填充形成的频域的重构频谱系数的集合被转换成时域的音频信号。 感知频谱解码器包括根据用于感知频谱解码的方法操作的噪声填充器。

公开(公告)号：US09495971B2

公开(公告)日：2016-11-15

申请号：US12673862

申请日：2008-08-25

Applicant: Gustaf Ullberg ,  Anisse Taleb

Inventor： Gustaf Ullberg ,  Anisse Taleb

IPC: G10L19/025 ,  G10L19/02 ,  G10L25/21

CPC classification number: G10L19/025 ,  G10L19/0212

Abstract: A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals (120) the determined transient hangover indicator to an associated audio encoder (10) to enable proper encoding of the following frame n+1.

Abstract translation: 瞬态检测器（100）分析（110）输入音频信号的给定帧n，以基于给定帧n的音频信号特性来确定用于后续帧n + 1的瞬时宿醉指示符，以及信号（120） 将所确定的瞬时停播指示符发送到相关联的音频编码器（10），以便能够对后续帧n + 1进行适当的编码。

公开(公告)号：US20110292924A1

公开(公告)日：2011-12-01

申请号：US13195315

申请日：2011-08-01

Applicant: Anisse Taleb ,  Stefan Bruhn ,  Moo Young Kim ,  Ingemar Johansson ,  Stefan Häkansson ,  Klas Fredrik Janis Jansson

Inventor： Anisse Taleb ,  Stefan Bruhn ,  Moo Young Kim ,  Ingemar Johansson ,  Stefan Häkansson ,  Klas Fredrik Janis Jansson

IPC: H04W4/00 ,  H04W84/02

CPC classification number: H04L1/0041 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/18 ,  H04L49/552 ,  H04L2001/0097

Abstract: A network processing node (e.g., MGW, MRFP) and method are described herein that can: (1) receive packets on a first heterogeneous link (e.g., wireless link); (2) manipulate the received packets based on known characteristics about a second heterogeneous link (e.g., “Internet” link); and (3) send the manipulated packets on the second heterogeneous link (e.g., “Internet” link). For example, the network processing node can manipulate the received packets by adding redundancy, removing redundancy, frame aggregating (re-packetizing), recovering lost packets and/or re-transmitting packets.

Abstract translation: 本文描述了可以：（1）在第一异构链路（例如，无线链路）上接收分组的网络处理节点（例如，MGW，MRFP）和方法; （2）基于关于第二异构链路（例如，“因特网”链路）的已知特性来操纵接收的分组; 和（3）在第二异构链路（例如，“因特网”链路）上发送所操纵的分组。 例如，网络处理节点可以通过添加冗余，去除冗余，帧聚合（重新分组），恢复丢失的分组和/或重新发送分组来操纵所接收的分组。

公开(公告)号：US07822617B2

公开(公告)日：2010-10-26

申请号：US11358726

申请日：2006-02-22

Applicant: Anisse Taleb ,  Stefan Andersson

Inventor： Anisse Taleb ,  Stefan Andersson

IPC: G10L19/00

CPC classification number: G10L19/022 ,  G10L19/002 ,  G10L19/008 ,  G10L19/24 ,  G10L19/26

Abstract: The invention provides an efficient technique for encoding a multi-channel audio signal. The invention relies on the principle of encoding (S1) a signal representation of one or more of the multiple channels in a first encoding process, and encoding another signal representation of one or more channels in a second, filter-based encoding process. A basic idea according to the invention is to select (S2), for the second encoding process, a combination of i) frame division configuration of an overall encoding frame into a set of sub-frames, and ii) filter length for each sub-frame, according to a predetermined criterion. The second signal representation is then encoded (S3) in each sub-frame of the overall encoding frame according to the selected combination. The possibility to select frame division configuration and at the same time adjust the filter length for each sub-frame provides added degrees of freedom, and generally results in improved performance.

Abstract translation: 本发明提供了一种用于对多声道音频信号进行编码的有效技术。 本发明依赖于在第一编码过程中编码（S1）多个信道中的一个或多个的信号表示的原理，以及在第二个基于过滤器的编码过程中编码一个或多个信道的另一个信号表示。 根据本发明的基本思想是选择（S2）对于第二编码处理，i）将整个编码帧的帧分配配置成一组子帧的组合，以及ii）每个子帧的滤波器长度， 帧，根据预定标准。 然后根据所选择的组合，在整个编码帧的每个子帧中对第二信号表示进行编码（S3）。 选择帧分配配置并同时调整每个子帧的滤波器长度的可​​能性提供了附加的自由度，并且通常导致改进的性能。

公开(公告)号：US20090076830A1

公开(公告)日：2009-03-19

申请号：US12281953

申请日：2007-03-07

Applicant: Anisse Taleb

Inventor： Anisse Taleb

IPC: G10L19/00

CPC classification number: G10L19/06 ,  G10L19/04 ,  G10L19/24

Abstract: A method for audio coding and decoding comprises primary encoding of a present audio signal sample into an encoded representation (T(n)), and non-causal encoding of a first previous audio signal sample into an encoded enhancement representation (ET(n−N+)). The method further comprises providing of the encoded representations to an end user. At the end user, the method comprises primary decoding of the encoded representation (T*(n)) into a present received audio signal sample, and non-causal decoding of the encoded enhancement representation (ET*(n−N+)) into an enhancement first previous received audio signal sample. The method further comprises improving of a first previous received audio signal sample, corresponding to the first previous audio signal sample, based on the enhancement first previous received audio signal sample. Devices and systems for audio coding and decoding are also presented.

Abstract translation: 一种用于音频编码和解码的方法包括将当前音频信号样本初级编码为编码表示（T（n）），以及将第一先前音频信号样本的非因果编码成编码增强表示（ET（n-N + ））。 该方法还包括向最终用户提供经编码的表示。 在最终用户中，该方法包括将编码表示（T *（n））的主要解码成当前接收的音频信号样本，并将编码的增强表示（ET *（n-N +））的非因果解码转换为 增强先前接收的音频信号样本。 该方法还包括基于增强的先前接收的音频信号样本来改进对应于第一先前音频信号采样的第一先前接收音频信号采样。 还提供了用于音频编码和解码的设备和系统。

公开(公告)号：US20080262850A1

公开(公告)日：2008-10-23

申请号：US11816996

申请日：2005-12-22

Applicant: Anisse Taleb ,  Stefan Andersson

Inventor： Anisse Taleb ,  Stefan Andersson

IPC: G10L19/00

CPC classification number: G10L19/008 ,  G10L19/24

Abstract: The invention provides a highly efficient technique for encoding a multi-channel audio signal. The invention relies on the basic principle of encoding a first signal representation of one or more of the multiple channels in a first encoder (130) and encoding a second signal representation of one or more of the multiple channels in a second, multi-stage, encoder (140). This procedure is significantly enhanced by providing a controller (150) for adaptively allocating a number of encoding bits among the different encoding stages of the second, multi-stage, encoder (140) in dependence on multi-channel audio signal characteristics.

Abstract translation: 本发明提供了一种用于编码多声道音频信号的高效技术。 本发明依赖于在第一编码器（130）中编码多个信道中的一个或多个信道的第一信号表示的基本原理，并且在第二多级信道中编码多个信道中的一个或多个信道的第二信号表示， 编码器（140）。 通过提供一种用于根据多声道音频信号特性在第二，多级编码器（140）的不同编码级之间自适应地分配多个编码位的控制器（150）来显着增强该过程。