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1.发明授权Method and apparatus for producing a fingerprint, and method and apparatus for identifying an audio signal 有权用于制造指纹的方法和装置，以及用于识别音频信号的方法和装置公开(公告)号：US07460994B2
公开(公告)日：2008-12-02
申请号：US10483452
申请日：2002-06-20
IPC分类号： G10L15/00
CPC分类号： G06K9/00523 , G06F17/30743 , G11B27/11 , G11B27/28
摘要： For producing a fingerprint of an audio signal, use is made of information defining a plurality of predetermined fingerprint modi, all of the fingerprint modi relating to the same type of fingerprint, the fingerprint modi, however, providing different fingerprints differing from each other with regard to their data volume, on the one hand, and to their characterizing strength for characterizing the audio signal, on the other hand, the fingerprint modi being pre-determined such that a fingerprint in accordance with a fingerprint modus having a first characterizing strength is convertible to a fingerprint in accordance with a fingerprint modus having a second characterizing strength, without using the audio signal. A predetermined fingerprint modus of the plurality of predetermined fingerprint modi is set and subsequently used for computing a fingerprint using the audio signal. The convertibility feature of the fingerprints having been produced by the different fingerprint modi enables setting a flexible compromise between the data volume and the characterizing strength for certain applications without having to re-generate a fingerprint database with each change of the fingerprint modus. Fingerprint representations scaled with regard to time or frequency may readily be converted to a different fingerprint modus.
摘要翻译： 为了产生音频信号的指纹，使用定义多个预定指纹模式的信息，与相同类型的指纹相关的所有指纹模式，指纹模式，然而，提供彼此不同的不同指纹 一方面涉及它们的数据量，以及它们用于表征音频信号的特征强度，另一方面，预先指定的指纹模式使得根据具有第一特征强度的指纹模式的指纹可转换 根据具有第二特征强度的指纹模式，指纹，而不使用音频信号。 设置多个预定指纹模式的预定指纹模式，并随后用于使用音频信号计算指纹。 由不同的指纹模式产生的指纹的可转换特征使得能够在某些应用的数据量和特征强度之间设置灵活的折衷，而不必随着指纹模式的每次变化重新生成指纹数据库。 关于时间或频率缩放的指纹表示可以容易地转换成不同的指纹模式。
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2.发明授权Method and device for characterizing a signal and method and device for producing an indexed signal 有权用于表征信号的方法和装置以及用于产生索引信号的方法和装置公开(公告)号：US07478045B2
公开(公告)日：2009-01-13
申请号：US10484513
申请日：2002-07-15
CPC分类号： G10H1/0008 , G10H2240/061 , G10H2240/135 , G10H2250/235 , G10H2250/601 , G10L15/04 , G10L19/0204
摘要： In a method for characterizing a signal representing an audio content a measure is determined for a tonality of the signal, whereupon a statement is made about the audio content of the signal on the basis of the measure for the tonality of the signal. The measure for the tonality is derived from a quotient whose numerator is the mean of the summed values of spectral components of the signal exponentiated with a first power and whose denominator is the mean of the summed values of spectral components exponentiated with a second power, the first and second powers differing from each other. The measure for the tonality of the signal for the content analysis is robust in relation to a signal distortion, due e.g. to MP3 coding, and has a high correlation with the content of the analyzed signal.
摘要翻译： 在表征音频内容的信号的表征方法中，针对信号的音调确定了一个度量，然后根据该信号音调的度量，对该信号的音频内容做出声明。 音调的度量来自商，其分子是以第一功率取幂的信号的频谱分量的总和值的平均值，其分母是用第二功率指数的频谱分量的总和值的平均值， 第一和第二权力彼此不同。 用于内容分析的信号的音调的度量相对于信号失真是鲁棒的，例如。 到MP3编码，并且与分析的信号的内容具有高度的相关性。
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公开(公告)号：US20060020958A1
公开(公告)日：2006-01-26
申请号：US10931635
申请日：2004-08-31
IPC分类号： H04H9/00
CPC分类号： G10L25/48
摘要： An apparatus for producing a fingerprint signal from an audio signal includes a means for calculating energy values for frequency bands of segments of the audio signal which are successive in time, so as to obtain, from the audio signal, a sequence of vectors of energy values, a means for scaling the energy values to obtain a sequence of scaled vectors, and a means for temporal filtering of the sequence of scaled vectors to obtain a filtered sequence which represents the fingerprint, or from which the fingerprint may be derived. Thus, a fingerprint is produced which is robust against disturbances due to problems associated with coding or with transmission channels, and which is especially suited for mobile radio applications.
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公开(公告)号：US20070127717A1
公开(公告)日：2007-06-07
申请号：US11557023
申请日：2006-11-06
IPC分类号： H04N7/167
CPC分类号： G10L25/48
摘要： For analyzing an information signal having a sequence of blocks of information units, wherein a plurality of consecutive blocks of the sequence of blocks represents an information entity, using a sequence of fingerprints for the sequence of blocks, identification results are provided for consecutive fingerprints, wherein an identification result represents an association of a block of information units with a predetermined information entity. Then at least two hypotheses are formed from the identification results for the consecutive fingerprints, wherein a first hypothesis is an assumption for the association of the sequence of blocks with a first information entity, and wherein the second hypothesis is an assumption for the association of the sequence of blocks with the second information entity. Then various hypotheses are examined to obtain an examination result on the basis of which there is then made a statement on the information signal. This achieves a meaningful and reliable time-continuous analysis of an information signal.
摘要翻译： 为了分析具有信息单元块序列的信息信号，其中块序列的多个连续块表示信息实体，使用块序列的指纹序列，为连续指纹提供识别结果，其中 识别结果表示信息单元块与预定信息实体的关联。 然后，从连续指纹的识别结果形成至少两个假设，其中第一假设是块的序列与第一信息实体的关联的假设，并且其中第二假设是关于 具有第二信息实体的块序列。 然后检查各种假设以获得检查结果，然后根据该结果对信息信号进行声明。 这实现了对信息信号的有意义和可靠的时间连续分析。
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公开(公告)号：US08065260B2
公开(公告)日：2011-11-22
申请号：US11557023
申请日：2006-11-06
CPC分类号： G10L25/48
摘要： For analyzing an information signal having a sequence of blocks of information units, wherein a plurality of consecutive blocks of the sequence of blocks represents an information entity, using a sequence of fingerprints for the sequence of blocks, identification results are provided for consecutive fingerprints, wherein an identification result represents an association of a block of information units with a predetermined information entity. Then at least two hypotheses are formed from the identification results for the consecutive fingerprints, wherein a first hypothesis is an assumption for the association of the sequence of blocks with a first information entity, and wherein the second hypothesis is an assumption for the association of the sequence of blocks with the second information entity. Then various hypotheses are examined to obtain an examination result on the basis of which there is then made a statement on the information signal. This achieves a meaningful and reliable time-continuous analysis of an information signal.
摘要翻译： 为了分析具有信息单元块序列的信息信号，其中块序列的多个连续块表示信息实体，使用块序列的指纹序列，为连续指纹提供识别结果，其中 识别结果表示信息单元块与预定信息实体的关联。 然后，从连续指纹的识别结果形成至少两个假设，其中第一假设是块的序列与第一信息实体的关联的假设，并且其中第二假设是关于 具有第二信息实体的块序列。 然后检查各种假设以获得检查结果，然后根据该结果对信息信号进行声明。 这实现了对信息信号的有意义和可靠的时间连续分析。
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6.发明授权Apparatus and method for robust classification of audio signals, and method for establishing and operating an audio-signal database, as well as computer program 有权用于音频信号的鲁棒分类的装置和方法，以及用于建立和操作音频信号数据库的方法以及计算机程序公开(公告)号：US07580832B2
公开(公告)日：2009-08-25
申请号：US10931635
申请日：2004-08-31
CPC分类号： G10L25/48
摘要： An apparatus for producing a fingerprint signal from an audio signal includes a means for calculating energy values for frequency bands of segments of the audio signal which are successive in time, so as to obtain, from the audio signal, a sequence of vectors of energy values, a means for scaling the energy values to obtain a sequence of scaled vectors, and a means for temporal filtering of the sequence of scaled vectors to obtain a filtered sequence which represents the fingerprint, or from which the fingerprint may be derived. Thus, a fingerprint is produced which is robust against disturbances due to problems associated with coding or with transmission channels, and which is especially suited for mobile radio applications.
摘要翻译： 用于从音频信号产生指纹信号的装置包括：用于计算时间上连续的音频信号段的频带的能量值的装置，以便从音频信号获得能量值向量序列 ，用于缩放能量值以获得缩放向量序列的装置，以及用于对缩放向量序列进行时间滤波的装置，以获得代表指纹的滤波序列，或者从中导出指纹。 因此，产生了由于与编码有关的问题或与传输信道相关的问题而鲁棒的指纹，并且特别适用于移动无线电应用。
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7.发明授权Device and method for generating a multi-channel signal including speech signal processing 有权用于产生包括语音信号处理的多声道信号的装置和方法公开(公告)号：US08731209B2
公开(公告)日：2014-05-20
申请号：US12681809
申请日：2008-10-01
IPC分类号： H04B3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L21/0364 , G10L25/78
摘要： In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
摘要翻译： 为了产生具有大于多个输入通道的输出通道数量的多通道信号，混频器用于将输入信号上混合以形成至少直接信道信号和至少一个环境信道信号。 提供语音检测器，用于检测语音部分发生的输入信号，直接信道信号或环境信道信号的一部分。 基于该检测，信号修改器修改输入信号或环境信道信号，以便衰减环境信道信号中的语音部分，而直接信道信号中的这种语音部分被衰减到较小程度，或根本不被衰减。 然后，扬声器信号输出器将直接信道信号和环境信道信号映射到与所定义的再现方案（例如5.1方案）相关联的扬声器信号。
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公开(公告)号：US08139775B2
公开(公告)日：2012-03-20
申请号：US11739544
申请日：2007-04-24
IPC分类号： H04R5/00
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译： 根据本发明，可以使用音频信号发生器有效地组合多个参数编码的音频信号，音频信号发生器通过直接在参数域内组合缩减混音信道和音频信号的相关参数来生成音频输出信号，即， 在产生音频输出信号之前重建或解码各个输入音频信号。 这通过直接混合各个输入信号的相关联的低通滤波通道实现。 本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混信道的组合。
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9.发明申请DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL INCLUDING SPEECH SIGNAL PROCESSING 有权用于产生包括语音信号处理的多信道信号的装置和方法公开(公告)号：US20100232619A1
公开(公告)日：2010-09-16
申请号：US12681809
申请日：2008-10-01
IPC分类号： H04B3/00
CPC分类号： H04S5/005 , G10L19/008 , G10L21/0364 , G10L25/78
摘要： In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.
摘要翻译： 为了产生具有大于多个输入通道的输出通道数量的多通道信号，混频器用于将输入信号上混合以形成至少直接信道信号和至少一个环境信道信号。 提供语音检测器，用于检测语音部分发生的输入信号，直接信道信号或环境信道信号的一部分。 基于该检测，信号修改器修改输入信号或环境信道信号，以便衰减环境信道信号中的语音部分，而直接信道信号中的这种语音部分被衰减到较小程度，或根本不被衰减。 然后，扬声器信号输出器将直接信道信号和环境信道信号映射到与所定义的再现方案（例如5.1方案）相关联的扬声器信号。
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公开(公告)号：US20080008323A1
公开(公告)日：2008-01-10
申请号：US11739544
申请日：2007-04-24
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译： 根据本发明，可以使用音频信号发生器有效地组合多个参数编码的音频信号，该音频信号发生器通过直接在参数域内组合缩减混音频道和音频信号的相关参数来生成音频输出信号，即，没有 在产生音频输出信号之前重建或解码各个输入音频信号。 这通过直接混合各个输入信号的相关联的低通滤波通道实现。 本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混信道的组合。
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