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1. 发明申请

WO2009121499A8 AUDIO TRANSFORM CODING USING PITCH CORRECTION 审中-公开
标题翻译：使用倾斜校正进行音频变换编码
公开(公告)号：WO2009121499A8
公开(公告)日：2010-02-25
申请号：PCT/EP2009002118
申请日：2009-03-23
申请人： FRAUNHOFER GES FORSCHUNG , EDLER BERND , DISCH SASCHA , GEIGER RALF , BAYER STEFAN , KRAEMER ULRICH , FUCHS GUILLAUME , NEUENDORF MAX , MULTRUS MARKUS , SCHULLER GERALD , POPP HARALD
发明人： EDLER BERND , DISCH SASCHA , GEIGER RALF , BAYER STEFAN , KRAEMER ULRICH , FUCHS GUILLAUME , NEUENDORF MAX , MULTRUS MARKUS , SCHULLER GERALD , POPP HARALD
IPC分类号： G10L19/02
CPC分类号： G10L19/0212 , G10L19/022
摘要： A processed representation of an audio signal having a sequence of frames is generated by sampling the audio signal within a first and a second frame of the sequence of frames, the second frame following the first frame, the sampling using information on a pitch contour of the first and the second frame to derive a first sampled representation. The audio signal is sampled within the second and the third frame, the third frame following the second frame in the sequence of frames. The sampling uses the information on the pitch contour of the second frame and information on a pitch contour of the third frame to derive a second sampled representation. A first scaling window is derived for the first sampled representation and a second scaling window is derived for the second sampled representation, the scaling windows depending on the samplings applied to derive the first sampled representations or the second sampled representation.
摘要翻译：具有帧序列的音频信号的处理表示通过对帧序列的第一帧和第二帧中的音频信号进行采样，第一帧之后的第二帧，使用关于第一帧的音调轮廓的信息的采样第一和第二帧以得出第一采样表示。音频信号在第二帧和第三帧内采样，第三帧在帧序列中的第二帧之后。采样使用关于第二帧的音调轮廓的信息和关于第三帧的音调轮廓的信息来导出第二采样表示。对于第一采样表示导出第一缩放窗口，并且针对第二采样表示导出第二缩放窗口，缩放窗口取决于应用于导出第一采样表示或第二采样表示的采样。

2. 发明申请

WO2010003618A3 PROVIDING A TIME WARP ACTIVATION SIGNAL AND ENCODING AN AUDIO SIGNAL THEREWITH 审中-公开
标题翻译：提供时间激活信号和编码音频信号
公开(公告)号：WO2010003618A3
公开(公告)日：2010-03-25
申请号：PCT/EP2009004874
申请日：2009-07-06
申请人： FRAUNHOFER GES FORSCHUNG , BAYER STEFAN , DISCH SASCHA , GEIGER RALF , FUCHS GUILLAUME , NEUENDORF MAX , SCHULLER GERALD , EDLER BERND
发明人： BAYER STEFAN , DISCH SASCHA , GEIGER RALF , FUCHS GUILLAUME , NEUENDORF MAX , SCHULLER GERALD , EDLER BERND
IPC分类号： G10L19/10 , G10L21/04
CPC分类号： G10L21/04 , G10L19/002 , G10L19/0212 , G10L19/022 , G10L19/028 , G10L19/032 , G10L19/265 , G10L21/043 , G10L25/90
摘要： An audio encoder comprises a window function controller (504), a windower (502), a time warper (506) with a final quality check functionality, a time/frequency converter (508), a TNS stage (510) or a quantizer encoder (512), the window function controller (504), the time warper (506), the TNS stage (510) or an additional noise filling analyzer (524) are controlled by signal analysis results obtained by a time warp analyzer (516) or a signal classifier (520). Furthermore, a decoder applies a noise filling operation using a manipulated noise filling estimate depending on a harmonic or speech characteristic of the audio signal.
摘要翻译：音频编码器包括窗函数控制器（504），加窗器（502），具有最终质量检查功能的时间整形器（506），时间/频率转换器（508），TNS级（510）或量化器编码器（512），窗口功能控制器（504），时间整经器（506），TNS平台（510）或附加噪声填充分析器（524）由时间扭曲分析器（516）获得的信号分析结果或信号分类器（520）。此外，解码器使用根据音频信号的谐波或语音特性的操纵噪声填充估计来应用噪声填充操作。

3. 发明申请

WO2008000316A8 AUDIO ENCODER, AUDIO DECODER AND AUDIO PROCESSOR HAVING A DYNAMICALLY VARIABLE HARPING CHARACTERISTIC 审中-公开
标题翻译：音频编码器，音频解码器和具有动态变化特征的音频处理器
公开(公告)号：WO2008000316A8
公开(公告)日：2009-02-26
申请号：PCT/EP2007004401
申请日：2007-05-16
申请人： FRAUNHOFER GES FORSCHUNG , HERRE JUERGEN , GRILL BERNHARD , MULTRUS MARKUS , BAYER STEFAN , KRAEMER ULRICH , HIRSCHFELD JENS , WABNIK STEFAN , SCHULLER GERALD
发明人： HERRE JUERGEN , GRILL BERNHARD , MULTRUS MARKUS , BAYER STEFAN , KRAEMER ULRICH , HIRSCHFELD JENS , WABNIK STEFAN , SCHULLER GERALD
IPC分类号： G10L19/00 , G10L19/20
CPC分类号： G10L19/20 , G10L19/265
摘要： An audio encoder, an audio decoder or an audio processor includes a filter (12) for generating a filtered audio signal, the filter having a variable warping characteristic, the characteristic being controllable in response to a time-varying control signal (16), the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller (18) is connected for providing the time-varying control signal, which depends on the audio signal. The filtered audio signal can be introduced to an encoding processor (22) having different encoding algorithms, one of which is a coding algorithm adapted to a specific signal pattern. Alternatively, the filter is a post-filter receiving a decoded audio signal.
摘要翻译：音频编码器，音频解码器或音频处理器包括用于产生经滤波的音频信号的滤波器（12），滤波器具有可变翘曲特性，该特性可响应于时变控制信号（16）而被控制，指示变形特性小或不翘曲特性的控制信号。此外，控制器（18）被连接用于提供取决于音频信号的时变控制信号。滤波后的音频信号可以被引入具有不同编码算法的编码处理器（22），其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收经解码的音频信号的后置滤波器。

4. 发明申请

WO2005006624A3 DEVICE AND METHOD FOR CONVERSION INTO A TRANSFORMED REPRESENTATION OR FOR INVERSELY CONVERTING THE TRANSFORMED REPRESENTATION 审中-公开
标题翻译：用于实现变形演示或反演变形演示的装置和方法
公开(公告)号：WO2005006624A3
公开(公告)日：2005-02-10
申请号：PCT/EP2004007326
申请日：2004-07-05
申请人： FRAUNHOFER GES FORSCHUNG , GEIGER RALF , SCHULLER GERALD , SPORER THOMAS
发明人： GEIGER RALF , SCHULLER GERALD , SPORER THOMAS
IPC分类号： G06F17/14 , G10L19/00 , G10L19/02 , H04N7/30 , G06T9/00
CPC分类号： H04N19/60 , G06F17/147 , G10L19/0017 , G10L19/0212
摘要： In order to convert a first and second block of discrete values into a transformed representation, the first block is transformed (102) according to a first transformation rule, after which it is rounded (104). The rounded transformed values are subsequently summed up (106) with the second block of original discrete values in order to then process (108) the summation result according to a second transformation rule. The initial values of the transformation are, in turn, rounded (110) using the second transformation rule, and are subsequently subtracted (112) from the original discrete values of the first block of discrete values in order to obtain a block of integer initial values of the transformed representation. By using this multi-dimensional lifting schema, a lossless integer transformation is achieved that, by employing the same transcription rules, can, however, be undone with inverted signs during the summation or subtraction so that an inverse integer transformation can also be achieved. In comparison to dividing a transformation in rotations, a distinctly reduced computational complexity is achieved and an accumulation of approximation errors is avoided.
摘要翻译：为了将第一和第二离散值块转换成变换后的表示，第一块根据第一变换规则变换（102），然后取整（104）。之后，将经过舍入的经变换的值与第二块原始离散值（106）相加，然后根据第二变换法则（108）处理求和结果。使用第二变换规则的变换的输出值再次被舍入（110），然后从第一离散值块（112）的原始离散值中减去（112）以获得变换后的表示的整数输出值的块。这种多维提升方案实现了无损整数变换，通过应用相同的变换规则可以撤消整数变换，但是在加法或减法中颠倒了符号，从而也可以实现逆整数变换。与将变换分解为旋转相反，一方面实现了显着降低的计算复杂度，另一方面避免了近似误差的累积。

5. 发明申请

WO2004021710A3 DEVICE AND METHOD FOR SCALABLE CODING AND DEVICE AND METHOD FOR SCALABLE DECODING 审中-公开
标题翻译：设备和方法可扩展的解码音频信号的可扩展编码装置及方法
公开(公告)号：WO2004021710A3
公开(公告)日：2004-04-22
申请号：PCT/EP0308623
申请日：2003-08-04
申请人： FRAUNHOFER GES FORSCHUNG , GEIGER RALF , SPORER THOMAS , BRANDENBURG KARLHEINZ , HERRE JUERGEN , KOLLER JUERGEN , SCHULLER GERALD
发明人： GEIGER RALF , SPORER THOMAS , BRANDENBURG KARLHEINZ , HERRE JUERGEN , KOLLER JUERGEN , SCHULLER GERALD
IPC分类号： G10L19/032 , G10L19/24 , G10L19/02
CPC分类号： G10L19/032 , G06F17/147 , G10L19/24
摘要： The invention relates to a device for the scalable coding of a spectrum of a signal comprising audio and/or video information. The spectrum comprises binary spectral values which are grouped into bands. Said device comprises a device (102) for producing a first partial scaling layer and a second partial scaling layer and a device (106) for forming the coded signals in order to incorporate the first partial scaling layer and the second partial scaling layer into the coded signal, such that the first and the second partial scaling layer can be decoded separately from each other. A partial scaling layer exclusively comprises, in comparison with a full scaling layer, bits of a defined order of part of the binary spectral value in the band such that additional decoding of a partial scaling layer can provide a finely controllable and finely scalable precision gain.
摘要翻译：用于信号的频谱，该音频和/或视频信息，其特征在于，所述频谱具有二进制频谱值，其被分组为频带，包括：装置（102），用于生成第一局部缩放层和第二子缩放层的可缩放编码的装置，和以便接收用于形成编码信号，其中所述装置（106）被配置成形成所述第一部分的缩放层和在编码信号中的第二局部缩放层，使得所述第一和分离的第二部分缩放层装饰的装置（106）是dierbar。的局部缩放层包括相对于一个满量程层，仅在频带的比特一个二进制频谱值的部分的一定的顺序，以使由一个局部缩放层的额外的解码，在精度的精细的和可控的细粒度可伸缩增益就可以实现。

6. 发明申请

WO2008089938A3 DEVICE AND METHOD FOR GENERATING A SIGNAL FOR TRANSMISSION OR A DECODED SIGNAL 审中-公开
标题翻译：用于产生要发送的信号或解码信号的装置和方法
公开(公告)号：WO2008089938A3
公开(公告)日：2008-12-18
申请号：PCT/EP2008000423
申请日：2008-01-21
申请人： FRAUNHOFER GES FORSCHUNG , SCHULLER GERALD , WABNIK STEFAN , GRILL BERNHARD , ZINK ALEXANDER
发明人： SCHULLER GERALD , WABNIK STEFAN , GRILL BERNHARD , ZINK ALEXANDER
IPC分类号： H04L1/00 , G08C25/04 , G10L19/16 , H04L1/22 , H04L29/14
CPC分类号： G10L19/008 , G08C19/34 , G10L19/16 , H04L5/0007 , H04L27/2647 , H04L27/3488 , H04L65/607 , H04L2001/0098 , H04N21/23439 , H04N21/2383 , H04N21/4382 , H04N21/44209 , H04N21/631
摘要： According to the invention, original information is coded in a main channel and a sub channel to generate a signal for transmission, the sub channel being more robust with regard to channel effects. On the receiver side, when the reception quality is above a threshold necessary to carry out a successful decoding of the main channel the main channel is reproduced. Should the reception quality fall below said threshold the sub channel is reproduced, which can have fewer bits than the main channel and is hence a correspondingly lower quality representation of the original information than the main channel.
摘要翻译：为了生成要发送的信号，将源信息编码成主信道和子信道，子信道比主信道对信道影响更鲁棒。在接收机侧，如果接收质量高于成功解码主频道所需的阈值，则重放主频道。然而，如果接收质量下降到该阈值以下，则再现次要信道，其可能具有比主要信道更少的比特，并且与原始信道相比原始信息的定性表示相应地较低。

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