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1. 发明授权

EP2346029B1 Audio encoder, method for encoding an audio signal and corresponding computer program 有权
标题翻译：装置和用于音频编码的方法，以及相应的计算机程序
公开(公告)号：EP2346029B1
公开(公告)日：2013-06-05
申请号：EP11157188.1
申请日：2009-06-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Rettelbach, Nikolaus , Grill, Bernhard , Fuchs, Guillaume , Geyersberger, Stefan , Multrus, Markus , Popp, Harald , Herre, Jürgen , Wabnik, Stefan , Schuller, Gerald , Hirschfeld, Jens
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/0017 , G10L19/02 , G10L19/0204 , G10L19/022 , G10L19/028 , G10L19/035 , G10L25/18

2. 发明公开

EP2362384A1 Watermark generator, watermark decoder, method for providing a watermark signal, method for providing binary message data in dependence on a watermarked signal and a computer program using improved synchronization concept 审中-公开
标题翻译：水印发生器水印解码器，提供了一个水印信号的方法中，响应于一个水印信号提供二进制数据的通知的方法，并用改进的同步概念的计算机程序
公开(公告)号：EP2362384A1
公开(公告)日：2011-08-31
申请号：EP10154953.3
申请日：2010-02-26
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Greevenbosch, Bert , Grill, Bernhard , Eberlein, Ernst , del Galdo, Giovanni , Breiling, Marco , Krägeloh, Stefan , Borsum, Juliane , Pickel, Jörg , Zitzmann, Reinhard , Bliem, Tobias
IPC分类号： G10L19/00
CPC分类号： G06F21/16 , G06F3/1243 , G06F17/30743 , G06F21/00 , G06F21/60 , G06F2221/0733 , G10L19/018
摘要： A watermark generator (2400) for providing a watermark signal (2420) in dependence on binary message data (2410), the watermark generator comprisines an information spreader (2430) configured to spread an information unit to a plurality of time-frequency-domain values, to obtain a spread information representation (2432). The watermark generator also comprises a synchronization inserter configured to multiplicatively combine the spread information representation (2432) with a synchronization sequence (2442) to obtain a combined information-synchronization representation (304a, So c f · m ; 2444). The watermark generator also comprises a watermark signal provider (2450) configured to provide the watermark signal (2420) on the basis of the combined information-synchronization representation (2444). A watermark decoder, methods and computer programs are also described.
摘要翻译：用于提供在二进制消息数据（2410）依赖性的水印信号（2420）的水印发生器（2400），配置信息吊具的水印发生器comprisines（2430）到传播到信息单元到时频域值的多元，以获得扩展信息表示（2432）。水印发生器，以便包括被配置为乘法与同步序列（2442）相结合的扩展信息表示（2432），以获得结合的信息同步表示（304A，所以C·F·米; 2444）的同步插入器。水印发生器，以便包括被配置为提供组合的信息同步表示（2444）的基础上的水印信号（2420）的水印信号提供器（2450）。水印译码器，所以方法和计算机程序中描述。

3. 发明公开

EP1990799A1 Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic 审中-公开
标题翻译：音频编码器，音频解码器和具有动态可变翘曲特性的音频处理器
公开(公告)号：EP1990799A1
公开(公告)日：2008-11-12
申请号：EP08014723.4
申请日：2006-06-30
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Schuller, Gerald , Herre, Jürgen , Grill, Bernhard , Multrus, Markus , Bayer, Stefan , Krämer, Ulrich , Hirschfeld, Jens
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/265
摘要： An audio encoder, an audio decoder or an audio processor includes a filter 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, the control signal indicating a small or no warping characteristic or a comparatively high warping characteristic. Furthermore, a controller 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 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生成滤波音频信号的滤波器，该滤波器具有可变翘曲特性，该特性响应于时变控制信号是可控制的，该控制信号指示小的或无翘曲特性或相对较高的翘曲特性。此外，控制器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到具有不同编码算法的编码处理器，其中之一是适用于特定信号模式的编码算法。或者，滤波器是接收解码音频信号的后置滤波器。

4. 发明公开

EP4235660A3 AUDIO DECODER, METHOD FOR DECODING AN AUDIO SIGNAL AND COMPUTER PROGRAM 有权
公开(公告)号：EP4235660A3
公开(公告)日：2023-09-13
申请号：EP23178772.2
申请日：2009-06-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Rettelbach, Nikolaus , Fuchs, Guillaume , Geyersberger, Stefan , Grill, Bernhard , Hirschfeld, Jens , Herre, Jürgen , Multrus, Markus , Popp, Harald , Schuller, Gerald , Wabnik, Stefan
IPC分类号： G10L19/028 , G10L19/02 , G10L19/032
摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

5. 发明授权

EP2346030B1 Audio encoder, method for encoding an audio signal and computer program 有权
标题翻译：装置和方法，用于音频编码和计算机程序
公开(公告)号：EP2346030B1
公开(公告)日：2014-10-01
申请号：EP11157204.6
申请日：2009-06-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Rettelbach, Nikolaus , Grill, Bernhard , Fuchs, Guillaume , Geyersberger, Stefan , Multrus, Markus , Popp, Harald , Herre, Jürgen , Wabnik, Stefan , Schuller, Gerald , Hirschfeld, Jens
IPC分类号： G10L19/028 , G10L19/00 , G10L19/02 , G10L19/022 , G10L19/035 , G10L25/18
CPC分类号： G10L19/0017 , G10L19/02 , G10L19/0204 , G10L19/022 , G10L19/028 , G10L19/035 , G10L25/18

6. 发明公开

EP2362382A1 Watermark signal provider and method for providing a watermark signal 审中-公开
标题翻译： Wasserzeichensignalversorger und Verfahren zur Bereitstellung eines Wasserzeichensignals
公开(公告)号：EP2362382A1
公开(公告)日：2011-08-31
申请号：EP10154948.3
申请日：2010-02-26
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Grill, Bernhard , Eberlein, Ernst , Del Galdo, Giovanni , Krägeloh, Stefan , Zitzmann, Reinhard , Bliem, Tobias , Borsum, Juliane , Breiling, Marco , Pickel, Jörg , Greevenbosch, Bert
IPC分类号： G10L19/00
CPC分类号： G10L19/018
摘要： A watermark signal provider for providing a watermark signal in dependence on a time frequency-domain representation of watermark data, in which the time-frequency-domain representation comprises values associated to frequency subbands and bit intervals, the watermark signal provider comprises a time-frequency-domain waveform provider to provide time-domain waveforms for a plurality of frequency subbands, based on the time-frequency-domain representation of the watermark data. The time-frequency-domain waveform provider is configured to map a given value of the time-frequency-domain representation onto a bit shaping function. A temporal extension of the bit shaping function is longer than the bit interval associated to the given value of the time-frequency-domain representation, such that there is a temporal overlap between bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation of the same frequency subband. A time-domain waveform of a given frequency subband contains a plurality of bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation of the same frequency band. The water mark signal provider further comprises a time-domain waveform combiner, to combine the provided time-domain waveforms for the plurality of frequencies of the time-frequency-domain provider to derive the watermark signal.
摘要翻译：一种水印信号提供器，用于根据水印数据的时间频域表示提供水印信号，其中时间 - 频域表示包括与频率子带和比特间隔相关联的值，水印信号提供器包括时间频率 - 域波形提供器，以基于水印数据的时域表示来提供多个频率子带的时域波形。时域波形提供器被配置为将时间 - 频域表示的给定值映射到位整形功能。比特整形函数的时间扩展长于与时 - 频域表示的给定值相关联的比特间隔，使得在时间 - 频域 - 时域表示的时间上随后的值提供的比特形状函数之间存在时间重叠，相同频率子带的域表示。给定频率子带的时域波形包含为相同频带的时间 - 频域表示的时间上后续值提供的多个位形函数。水印信号提供器还包括时域波形组合器，以组合提供的时频域提供者的多个频率的时域波形以导出水印信号。

7. 发明公开

EP2362386A1 Watermark generator, watermark decoder, method for providing a watermark signal in dependence on binary message data, method for providing binary message data in dependence on a watermarked signal and computer program using a two-dimensional bit spreading 审中-公开
标题翻译：水印发生器水印解码器中，响应于二进制数据，响应于一个水印信号提供二进制数据的通知的方法，和计算机程序的通知提供水印信号与二维位加宽的方法
公开(公告)号：EP2362386A1
公开(公告)日：2011-08-31
申请号：EP10154960.8
申请日：2010-02-26
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Breiling, Marco , Borsum, Juliane , Grill, Bernhard , Eberlein, Ernst , del Galdo, Giovanni , Krägeloh, Stefan , Zitzmann, Reinhard , Greevenbosch, Bert , Bliem, Tobias , Pickel, Jörg
IPC分类号： G10L19/00
CPC分类号： G10L19/018 , H04H20/14 , H04H60/29
摘要： A watermark generator (2400) for providing a watermark signal (2420) in dependence on binary message data (2410) comprises an information processor (2430) configured to provide, in dependence on a single message bit of the binary message data, a 2-dimensional spread information (2432) representing the message bit in the form of a set of time-frequency-domain values. The watermark generator also comprises a watermark signal provider (2440) configured to provide the watermark signal on the basis of the 2-dimensional spread information.
A Watermark detector, methods and computer programs are also described.
摘要翻译：水印发生器（2400），用于根据二进制消息数据提供在依赖性的水印信号（2420）（2410）包括被配置为提供信息处理器（2430）的，在对二进制消息数据的单个消息比特的依赖，2- 二维扩展信息（2432）表示一组时频域值的形式的消息比特。水印发生器，以便包括被配置成提供的二维扩展信息的基础上，水印信号中的水印信号提供器（2440）。的水印检测器，所以方法和计算机程序中描述。

8. 发明公开

EP2362385A1 Watermark signal provision and watermark embedding 审中-公开
标题翻译： Wasserzeichensignalversorger und Wasserzeicheneinbettung
公开(公告)号：EP2362385A1
公开(公告)日：2011-08-31
申请号：EP10154956.6
申请日：2010-02-26
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Grill, Bernhard , Eberlein, Ernst , Del Galdo, Giovanni , Krägeloh, Stefan , Zitzmann, Reinhard , Bliem, Tobias , Borsum, Juliane , Breiling, Marco , Pickel, Jörg , Greevenbosch, Bert
IPC分类号： G10L19/00
CPC分类号： G10L19/018 , H04H20/14 , H04H60/29 , H04H60/33
摘要： A watermark signal provider (2400) for providing a watermark signal (2440) suitable for being hidden in an audio signal (2430) when the watermark signal is added to the audio signal, such that the watermark signal represents watermark data (2450), is described. The watermark signal provider comprises a psychoacoustical processor (2410) for determining a masking threshold of the audio signal; and a modulator (2420) for generating the watermark signal from a superposition of sample-shaping functions spaced apart from each other at a sample time interval (T b ) of a time-discrete representation of the watermark data, each sample-shaping function being amplitude-weighted with a respective sample of the time-discrete representation, multiplied by a respective amplitude weight depending on the masking threshold, the modulator being configured such that the sample time interval is shorter than a time extension of the sample-shaping functions; and the respective amplitude weight also depends on samples of the time-discrete representation neighboring the respective sample in time.
摘要翻译：一种水印信号提供器（2400），用于当将水印信号添加到音频信号时提供适于隐藏在音频信号（2430）中的水印信号（2440），使得水印信号表示水印数据（2450），是描述。水印信号提供器包括用于确定音频信号的掩蔽阈值的心理声学处理器（2410）以及调制器（2420），用于在水印数据的时间离散表示的采样时间间隔（T b）处从彼此间隔开的采样整形功能的叠加产生水印信号，每个采样整形功能是用时间离散表示的相应样本进行幅度加权，乘以相应的根据掩蔽阈值的幅度权重，调制器被配置为使得采样时间间隔短于样本整形函数的时间延长; 并且相应的振幅权重也取决于在时间上与相应样本相邻的时间离散表示的样本。

9. 发明公开

EP2362383A1 Watermark decoder and method for providing binary message data 审中-公开
标题翻译： Wasserzeichendecodierer und Verfahren zur BereitstellungbinärerBenachrichtigungsdaten
公开(公告)号：EP2362383A1
公开(公告)日：2011-08-31
申请号：EP10154951.7
申请日：2010-02-26
申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
发明人： Wabnik, Stefan , Grill, Bernhard , Eberlein, Ernst , del Galdo, Giovanni , Krägeloh, Stefan , Zitzmann, Reinhard , Bliem, Tobias , Borsum, Juliane , Breiling, Marco , Pickel, Jörg , Greevenbosch, Bert
IPC分类号： G10L19/00
CPC分类号： G10L19/018
摘要： A watermark decoder comprises a time-frequency-domain representation provider, a memory unit, a synchronization determiner and a watermark extractor. The time-frequency-domain representation provider provides a frequency-domain representation of the watermarked signal for a plurality of time blocks. The memory unit stores the frequency-domain representation of the watermarked signal for a plurality of time blocks. Further, the synchronization determiner identifies an alignment time block based on the frequency-domain representation of the watermarked signal of a plurality of time blocks. The watermark extractor provides binary message data based on stored frequency-domain representations of the watermarked signal of time blocks temporally preceding the identified alignment time block considering a distance to the identified alignment time block.
摘要翻译：水印解码器包括时域表示提供者，存储单元，同步确定器和水印提取器。时域表示提供者为多个时间块提供水印信号的频域表示。存储单元存储多个时间块的水印信号的频域表示。此外，同步确定器基于多个时间块的水印信号的频域表示来识别对准时间块。考虑到到所识别的对准时间块的距离，水印提取器基于时间上在所识别的对准时间块之前的时间块的水印信号的存储频域表示来提供二进制消息数据。

10. 发明公开

EP2346030A1 Audio encoder, method for encoding an audio signal, audio stream and computer program 有权
标题翻译： Vorrichtung und Verfahren zur Audiokodierung und Computerprogramm
公开(公告)号：EP2346030A1
公开(公告)日：2011-07-20
申请号：EP11157204.6
申请日：2009-06-25
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Rettelbach, Nikolaus , Grill, Bernhard , Fuchs, Guillaume , Geyersberger, Stefan , Multrus, Markus , Popp, Harald , Herre, Jürgen , Wabnik, Stefan , Schuller, Gerald , Hirschfeld, Jens
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/0017 , G10L19/02 , G10L19/0204 , G10L19/022 , G10L19/028 , G10L19/035 , G10L25/18
摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
摘要翻译：一种用于基于输入音频信号的变换域表示来提供音频流的编码器包括：量化误差计算器，被配置为确定输入音频信号的多个频带上的多频带量化误差，获取信息可用。编码器还包括被配置为提供音频流的音频流提供器，使得音频流包括描述频带的音频内容的信息和描述多频带量化误差的信息。用于基于表示音频信号的频带的频带的频谱分量的编码音频流提供音频信号的解码表示的解码器包括：噪声填充器，被配置为将噪声引入多个频带的频谱分量中，基于公共多频带噪声强度值来关联频带增益信息。

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