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1. 发明授权

US08487175B2 Music analysis apparatus 有权
标题翻译：音乐分析仪器
公开(公告)号：US08487175B2
公开(公告)日：2013-07-16
申请号：US13081337
申请日：2011-04-06
申请人： Keita Arimoto , Sebastian Streich , Bee Suan Ong
发明人： Keita Arimoto , Sebastian Streich , Bee Suan Ong
IPC分类号： G10H1/40 , G10H7/00
CPC分类号： G10H1/40 , G10H2210/076 , G10H2240/141 , G10H2250/235
摘要： In a musical analysis apparatus, a spectrum acquirer acquires a spectrum for each frame of an audio signal representing a piece of music. A beat specifier specifies a sequence of beats of the audio signal. A feature amount extractor divides an interval between the beats into a plurality of analysis periods such that one analysis period contains a plurality of frames, and separates the spectrum of the frames contained in one analysis period into a plurality of analysis bands so as to set a plurality of analysis units in one analysis period in correspondence with the plurality of the analysis bands, such that one analysis unit contains components of the spectrum belonging to the corresponding analysis band. The feature amount extractor further calculates a feature value of each analysis unit based on the components of the spectrum contained in each analysis unit, thereby generating a rhythmic feature amount that is an array of the feature values calculated for the analysis units and that features a rhythm of the piece of music.
摘要翻译：在音乐分析装置中，频谱获取器获取表示音乐片段的音频信号的每个帧的频谱。节拍指定符指定音频信号的节拍序列。特征量提取器将节拍之间的间隔划分成多个分析周期，使得一个分析周期包含多个帧，并将包含在一个分析周期中的帧的频谱分离成多个分析频带，以便设置在一个分析周期内与多个分析带对应的多个分析单元，使得一个分析单元包含属于相应分析带的频谱的分量。特征量提取器还基于每个分析单元中包含的频谱的分量来计算每个分析单元的特征值，从而生成作为针对分析单元计算的特征值的阵列的节奏特征量，并且具有节奏的音乐。

2. 发明授权

US07653534B2 Apparatus and method for determining a type of chord underlying a test signal 有权
标题翻译：用于确定测试信号下面的和弦类型的装置和方法
公开(公告)号：US07653534B2
公开(公告)日：2010-01-26
申请号：US11607659
申请日：2006-12-01
申请人： Claas Derboven , Sebastian Streich , Markus Cremer
发明人： Claas Derboven , Sebastian Streich , Markus Cremer
IPC分类号： G10H1/38 , G10L11/04
CPC分类号： G10H1/383 , G10H2210/066 , G10H2250/235
摘要： An apparatus for determining a type of chord has a means for providing a reference vector for the type of chord, a means for providing a reference vector from a test signal, and a means for comparing the reference vector with the test signal vector. The means for providing a reference vector is configured to provide, for the type of chord, a reference vector from a plurality of different reference vectors. In addition, the means for providing a test signal vector from the test signal is configured to provide the test signal vector having a plurality of test signal vector elements. In addition, the means for comparing the reference vector with the test signal vector is configured to compare the reference vector and the test vector or versions of the test signal vector which are cyclically shifted by different shift values, in order to obtain various comparison results which are allocated to the test signal vector or shift values, so as to determine the type of chord on the basis of an extreme comparison result and the shift value associated with same.
摘要翻译：用于确定和弦类型的装置具有用于提供用于和弦类型的参考矢量的装置，用于从测试信号提供参考矢量的装置以及用于将参考矢量与测试信号矢量进行比较的装置。用于提供参考矢量的装置被配置为为和弦类型提供来自多个不同参考矢量的参考矢量。此外，用于从测试信号提供测试信号向量的装置被配置为提供具有多个测试信号向量元素的测试信号向量。此外，用于比较参考矢量与测试信号矢量的装置被配置为比较参考矢量和被不同偏移值循环移位的测试信号矢量的测试矢量或版本，以便获得各种比较结果，被分配给测试信号向量或移位值，以便基于极端比较结果和与之相关联的移位值来确定和弦的类型。

3. 发明申请

US20090100990A1 APPARATUS AND METHOD FOR CONVERTING AN INFORMATION SIGNAL TO A SPECTRAL REPRESENTATION WITH VARIABLE RESOLUTION 有权
标题翻译：将信息信号转换为具有可变分辨率的光谱表示的装置和方法
公开(公告)号：US20090100990A1
公开(公告)日：2009-04-23
申请号：US11629594
申请日：2005-04-27
申请人： Markus Cremer , Claas Derboven , Sebastian Streich
发明人： Markus Cremer , Claas Derboven , Sebastian Streich
IPC分类号： G10H1/06
CPC分类号： G10H1/06 , G10H2210/081 , G10H2250/235
摘要： The apparatus for converting an information signal from a time to a variable spectral representation includes a means for windowing the information signal, a means for converting the windowed information signal to a spectral representation, and a means for weighting a set of information signal spectral coefficients with several sets of complex base function coefficients provided from a means for providing the sets of base function coefficients. The sets of base function coefficients are derived from base functions of various frequencies by windowing and transform, wherein several sets of base function coefficients are provided for one and the same base function for base functions of higher frequencies, wherein the windows for providing these sets are related to various time portions of the base function. The variable spectral representation exhibits variable bandwidth of the variable spectral coefficients, which are efficient and accurate to calculate and especially suited for music analysis purposes.
摘要翻译：用于将信息信号从时间转换为可变频谱表示的装置包括用于对信息信号进行加窗的装置，用于将窗口信息信号转换为频谱表示的装置，以及用于对信息信号频谱系数集合进行加权的装置，从用于提供基本函数系数集合的装置提供的几组复合基函数系数。基函数系数集合是通过加窗和变换从各种频率的基函数导出的，其中为一个和相同的基本函数提供了几组基函数系数，用于较高频率的基函数，其中提供这些集合的窗口是与基本功能的各种时间部分相关。可变光谱表示表现出可变光谱系数的可变带宽，这是有效和准确的计算，特别适合于音乐分析目的。

4. 发明申请

US20110271819A1 MUSIC ANALYSIS APPARATUS 有权
标题翻译：音乐分析装置
公开(公告)号：US20110271819A1
公开(公告)日：2011-11-10
申请号：US13081337
申请日：2011-04-06
申请人： Keita ARIMOTO , Sebastian Streich , Bee Suan Ong
发明人： Keita ARIMOTO , Sebastian Streich , Bee Suan Ong
IPC分类号： G10H1/40
CPC分类号： G10H1/40 , G10H2210/076 , G10H2240/141 , G10H2250/235
摘要： In a musical analysis apparatus, a spectrum acquirer acquires a spectrum for each frame of an audio signal representing a piece of music. A beat specifier specifies a sequence of beats of the audio signal. A feature amount extractor divides an interval between the beats into a plurality of analysis periods such that one analysis period contains a plurality of frames, and separates the spectrum of the frames contained in one analysis period into a plurality of analysis bands so as to set a plurality of analysis units in one analysis period in correspondence with the plurality of the analysis bands, such that one analysis unit contains components of the spectrum belonging to the corresponding analysis band. The feature amount extractor further calculates a feature value of each analysis unit based on the components of the spectrum contained in each analysis unit, thereby generating a rhythmic feature amount that is an array of the feature values calculated for the analysis units and that features a rhythm of the piece of music.
摘要翻译：在音乐分析装置中，频谱获取器获取表示音乐片段的音频信号的每个帧的频谱。节拍指定符指定音频信号的节拍序列。特征量提取器将节拍之间的间隔划分成多个分析周期，使得一个分析周期包含多个帧，并将包含在一个分析周期中的帧的频谱分离成多个分析频带，以便设置在一个分析周期内与多个分析带对应的多个分析单元，使得一个分析单元包含属于相应分析带的频谱的分量。特征量提取器还基于每个分析单元中包含的频谱的分量来计算每个分析单元的特征值，从而生成作为针对分析单元计算的特征值的阵列的节奏特征量，并且具有节奏的音乐。

5. 发明授权

US07812240B2 Fragment search apparatus and method 有权
标题翻译：片段搜索装置和方法
公开(公告)号：US07812240B2
公开(公告)日：2010-10-12
申请号：US12287584
申请日：2008-10-10
申请人： Sebastian Streich , Jordi Bonada , Samuel Roig
发明人： Sebastian Streich , Jordi Bonada , Samuel Roig
IPC分类号： A63H5/00
CPC分类号： G10H1/0025 , G06F17/30743 , G10H2210/076 , G10H2210/125 , G10H2240/131
摘要： Analysis section divides waveform data of a given music piece into waveform data of a plurality of fragments and divides the waveform data of each of the fragments into one or more events of sound, and obtains a character value indicative of a character of the waveform data pertaining to each of the divided events. Storage section stores respective music piece data and music piece composing data of one or more music pieces. The music piece composing data include a character value indicative of a character of the waveform data pertaining to each of the events of each of the fragments. Search section searches (or retrieves) for, from among the stored music piece composing data, one event or a plurality of successive events having a character value of a high degree of similarity to one or more events included in a designated fragment.
摘要翻译：分析部将给定音乐片段的波形数据分割为多个片段的波形数据，并将每个片段的波形数据划分为一个或多个声音事件，并获得表示相关波形数据的字符的字符值对每一个分开的事件。存储部分存储合成一个或多个音乐片段的各个乐曲数据和音乐作品的数据。构成数据的乐曲包括表示与每个片段的每个事件有关的波形数据的字符的字符值。搜索部分从存储的音乐作品数据中搜索（或检索）一个事件或多个连续事件，该事件或多个连续事件具有与包括在指定片段中的一个或多个事件高度相似度的字符值。

6. 发明申请

US20070144335A1 Apparatus and method for determining a type of chord underlying a test signal 有权
标题翻译：用于确定测试信号下面的和弦类型的装置和方法
公开(公告)号：US20070144335A1
公开(公告)日：2007-06-28
申请号：US11607659
申请日：2006-12-01
申请人： Claas Derboven , Sebastian Streich , Markus Cremer
发明人： Claas Derboven , Sebastian Streich , Markus Cremer
IPC分类号： G10H7/00 , G10H1/38
CPC分类号： G10H1/383 , G10H2210/066 , G10H2250/235
摘要： An apparatus for determining a type of chord has a means for providing a reference vector for the type of chord, a means for providing a reference vector from a test signal, and a means for comparing the reference vector with the test signal vector. The means for providing a reference vector is configured to provide, for the type of chord, a reference vector from a plurality of different reference vectors. In addition, the means for providing a test signal vector from the test signal is configured to provide the test signal vector having a plurality of test signal vector elements. In addition, the means for comparing the reference vector with the test signal vector is configured to compare the reference vector and the test vector or versions of the test signal vector which are cyclically shifted by different shift values, in order to obtain various comparison results which are allocated to the test signal vector or shift values, so as to determine the type of chord on the basis of an extreme comparison result and the shift value associated with same.
摘要翻译：用于确定和弦类型的装置具有用于提供用于和弦类型的参考矢量的装置，用于从测试信号提供参考矢量的装置以及用于将参考矢量与测试信号矢量进行比较的装置。用于提供参考矢量的装置被配置为为和弦类型提供来自多个不同参考矢量的参考矢量。此外，用于从测试信号提供测试信号向量的装置被配置为提供具有多个测试信号向量元素的测试信号向量。此外，用于比较参考矢量与测试信号矢量的装置被配置为比较参考矢量和被不同偏移值循环移位的测试信号矢量的测试矢量或版本，以便获得各种比较结果，被分配给测试信号向量或移位值，以便基于极端比较结果和与之相关联的移位值来确定和弦的类型。

7. 发明授权

US08269091B2 Sound evaluation device and method for evaluating a degree of consonance or dissonance between a plurality of sounds 有权
标题翻译：用于评估多个声音之间的协调程度或不一致程度的声音评估装置和方法
公开(公告)号：US08269091B2
公开(公告)日：2012-09-18
申请号：US12456553
申请日：2009-06-18
申请人： Sebastian Streich , Takuya Fujishima
发明人： Sebastian Streich , Takuya Fujishima
IPC分类号： A63H5/00 , G04B13/00 , G10H7/00
CPC分类号： G10H1/0008 , G10H1/383 , G10H2210/066 , G10H2210/601 , G10H2250/031
摘要： Mask generation section generates an evaluating mask, indicative of a degree of dissonance with a target sound per each frequency along a frequency axis, by setting, for each of a plurality of peaks in spectra of the target sound, a dissonance function indicative of relationship between a frequency difference from the peak and a degree of dissonance with a component of the peak. Index calculation section collates spectra of an evaluated sound with the evaluating mask to thereby calculate a consonance index value indicative of a degree of consonance or dissonance between the target sound and the evaluated sound.
摘要翻译：掩模产生部分通过针对目标声音的光谱中的多个峰值中的每一个设置表示与频率轴之间的关系的不一致函数来生成指示与沿着频率轴的每个频率的目标声音的不一致程度的评估掩模与峰值的频率差和与峰值分量的不一致程度。索引计算部分将评估声音的光谱与评估掩码进行比较，从而计算出指示目标声音和评估声音之间的一致度或不谐音的辅音指数值。

8. 发明授权

US07642444B2 Music-piece processing apparatus and method 有权
标题翻译：音乐片处理装置和方法
公开(公告)号：US07642444B2
公开(公告)日：2010-01-05
申请号：US11985212
申请日：2007-11-13
申请人： Takuya Fujishima , Jordi Bonada , Maarten De Boer , Sebastian Streich , Bee Suan Ong
发明人： Takuya Fujishima , Jordi Bonada , Maarten De Boer , Sebastian Streich , Bee Suan Ong
IPC分类号： G10H1/22
CPC分类号： G10H1/0025 , G10H2210/061 , G10H2210/125 , G10H2220/106 , G10H2240/145
摘要： For each of a plurality of music pieces, a storage device stores respective tone data of a plurality of fragments of the music piece and respective musical character values of the fragments. Similarity determination section calculates a similarity index value indicative of a degree of similarity between the character values of each of the fragments of a main music piece and the character values of each individual fragment of a plurality of sub music pieces. Each of the similarity index values calculated for the fragments of each of the sub music pieces can be adjusted in accordance with a user's control. Processing section processes the tone data of each of the fragments of the main music piece on the basis of the tone data of any one of the fragments of the sub music pieces of which the similarity index value indicates sufficient similarity.
摘要翻译：对于多个音乐片段中的每一个，存储装置存储音乐片段的多个片段和片段的相应音乐字符值的各个音调数据。相似度确定部分计算表示主乐曲的每个片段的字符值与多个子乐曲的每个片段的字符值之间的相似度的相似度指数值。可以根据用户的控制来对每个子音乐片段的片段计算出的每个相似性索引值进行调整。处理部根据相似度指标值表示足够的相似度的子音乐片段中任一片段的色调数据，处理主乐曲的每个片段的色调数据。

9. 发明申请

US20090019996A1 Music piece processing apparatus and method 有权
标题翻译：音乐片处理装置和方法
公开(公告)号：US20090019996A1
公开(公告)日：2009-01-22
申请号：US12218396
申请日：2008-07-15
申请人： Takuya Fujishima , Maarten De Boer , Jordi Bonada , Samuel Roig , Fokke De Jong , Sebastian Streich
发明人： Takuya Fujishima , Maarten De Boer , Jordi Bonada , Samuel Roig , Fokke De Jong , Sebastian Streich
IPC分类号： G10H1/08
CPC分类号： G10H1/0025 , G10H2210/00 , G10H2210/076 , G10H2210/081 , G10H2210/125 , G10H2210/136 , G10H2210/561 , G10H2240/131
摘要： Storage section has stored therein music piece data sets of a plurality of music pieces, each of the music piece data sets including respective tone data of a plurality of fragments of the music piece and respective character values indicative of musical characters of the fragments. Each of the fragments of a selected main music piece is selected as a main fragment, and each one, other than the selected main fragment, of a plurality of fragments of two or more music pieces is selected as a sub fragment. A similarity index value indicative of a degree of similarity between the character value of the main fragment and the character value of the specified sub fragment is calculated. For each of the main fragments, a sub fragment presenting a similarity index value that satisfies a predetermined selection condition is selected for processing the tone data of the main music piece.
摘要翻译：存储部分存储了多个音乐片段的乐曲数据集，每个乐曲数据集包括音乐片段的多个片段的各个乐曲数据和表示片段的音乐人物的各自的角色值。选择的主乐曲的每个片段被选择为主片段，并且选择两个或更多个乐曲的多个片段的所选主片段以外的每个片段作为子片段。计算出表示主要片段的字符值与特定子片段的字符值之间的相似程度的相似度指数值。对于每个主片段，选择呈现满足预定选择条件的相似度索引值的子片段来处理主乐曲的色调数据。

10. 发明授权

US08494668B2 Sound signal processing apparatus and method 有权
公开(公告)号：US08494668B2
公开(公告)日：2013-07-23
申请号：US12378719
申请日：2009-02-19
申请人： Bee Suan Ong , Sebastian Streich , Takuya Fujishima , Keita Arimoto
发明人： Bee Suan Ong , Sebastian Streich , Takuya Fujishima , Keita Arimoto
IPC分类号： G06F17/00 , G10L15/00 , G10L15/06 , G10L11/00 , G10L21/06
CPC分类号： G10H1/0008 , G10H2210/056 , G10H2210/066 , G10H2250/135
摘要： Character value of a sound signal is extracted for each unit portion, and degrees of similarity between the character values of the individual unit portions are calculated and arranged in a matrix configuration. The matrix has arranged in each column the degrees of similarity acquired by comparing, for each of the unit portions, the sound signal and a delayed sound signal obtained by delaying the sound signal by a time difference equal to an integral multiple of a time length of the unit portion, and it has a plurality of the columns in association with different time differences. Repetition probability is calculated for each of the columns corresponding to the different time differences in the matrix. A plurality of peaks in a distribution of the repetition probabilities are identified. The loop region in the sound signal is identified by collating a reference matrix with the degree of similarity matrix.

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