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11. 发明授权

US07858869B2 Sound analysis apparatus and program 有权
标题翻译：声音分析仪器和程序
公开(公告)号：US07858869B2
公开(公告)日：2010-12-28
申请号：US12037036
申请日：2008-02-25
申请人： Masataka Goto , Takuya Fujishima , Keita Arimoto
发明人： Masataka Goto , Takuya Fujishima , Keita Arimoto
IPC分类号： G10H1/18 , G06F17/00
CPC分类号： G10H1/361 , G10H2210/066
摘要： A sound analysis apparatus employs tone models which are associated with various fundamental frequencies and each of which simulates a harmonic structure of a performance sound generated by a musical instrument, then defines a weighted mixture of the tone models to simulate frequency components of the performance sound, further sequentially updates and optimizes weight values of the respective tone models so that a frequency distribution of the weighted mixture of the tone models corresponds to a distribution of the frequency components of the performance sound, and estimates the fundamental frequency of the performance sound based on the optimized weight values.
摘要翻译：声音分析装置使用与各种基本频率相关联的音调模型，并且每个音调模型模拟由乐器产生的演奏声音的谐波结构，然后定义音调模型的加权混合以模拟演奏声音的频率分量，进一步顺序地更新和优化各个音调模型的权重值，使得音调模型的加权混合的频率分布对应于演奏声音的频率分量的分布，并且基于该音调模型估计演奏声音的基本频率优化重量值。

12. 发明授权

US07473840B2 Electronic drum 有权
标题翻译：电子鼓
公开(公告)号：US07473840B2
公开(公告)日：2009-01-06
申请号：US11132913
申请日：2005-05-18
申请人： Keita Arimoto
发明人： Keita Arimoto
IPC分类号： G10H7/02
CPC分类号： G10H1/06 , G10H7/008 , G10H2250/435
摘要： Respective waveform data on pad strike sounds, rim strike sounds, and rim-shot sounds are stored in a waveform memory, and when a CPU detects a strike detection signal outputted by either of a pad sensor, and a rim sensor, provided in a head unit, a musical tone generating controller reads out waveform data on an strike sound corresponding to the strike detection signal from the waveform memory, thereby generating a musical tone signal corresponding thereto before outputting. Thereafter, when the CPU detects a strike detection signal outputted by the other of the pad sensor, and the rim sensor within a predetermined time, waveform data on a rim-shot sound are read out from the waveform data memory, thereby generating a musical tone signal corresponding thereto before outputting. A sound output unit produces electronic strike sounds corresponding to those musical tone signals, respectively.
摘要翻译：在波形存储器中存储有关于敲击声，轮辋撞击声和边缘拍摄声音的相应波形数据，并且当CPU检测到提供在头部中的垫传感器和边缘传感器中的任一个输出的击打检测信号音乐发生控制器从波形存储器中读出与罢工检测信号相对应的打击声音的波形数据，从而在输出之前产生与之对应的乐音信号。此后，当CPU检测到由另一个焊盘传感器输出的触发检测信号和边缘传感器在预定时间内时，从波形数据存储器中读出关于边缘声音的波形数据，从而产生音调输出之前对应的信号。声音输出单元分别产生与那些乐音信号相对应的电子敲击声。

13. 发明申请

US20080202321A1 SOUND ANALYSIS APPARATUS AND PROGRAM 有权
标题翻译：声音分析装置和程序
公开(公告)号：US20080202321A1
公开(公告)日：2008-08-28
申请号：US12037036
申请日：2008-02-25
申请人： Masataka Goto , Takuya Fujishima , Keita Arimoto
发明人： Masataka Goto , Takuya Fujishima , Keita Arimoto
IPC分类号： G10H7/00
CPC分类号： G10H1/361 , G10H2210/066
摘要： A sound analysis apparatus employs tone models which are associated with various fundamental frequencies and each of which simulates a harmonic structure of a performance sound generated by a musical instrument, then defines a weighted mixture of the tone models to simulate frequency components of the performance sound, further sequentially updates and optimizes weight values of the respective tone models so that a frequency distribution of the weighted mixture of the tone models corresponds to a distribution of the frequency components of the performance sound, and estimates the fundamental frequency of the performance sound based on the optimized weight values.
摘要翻译：声音分析装置使用与各种基本频率相关联的音调模型，并且每个音调模型模拟由乐器产生的演奏声音的谐波结构，然后定义音调模型的加权混合以模拟演奏声音的频率分量，进一步顺序地更新和优化各个音调模型的权重值，使得音调模型的加权混合的频率分布对应于演奏声音的频率分量的分布，并且基于该音调模型估计演奏声音的基本频率优化重量值。

14. 发明申请

US20050262991A1 Electronic drum 有权
标题翻译：电子鼓
公开(公告)号：US20050262991A1
公开(公告)日：2005-12-01
申请号：US11132913
申请日：2005-05-18
申请人： Keita Arimoto
发明人： Keita Arimoto
IPC分类号： G10H1/00 , G10D13/02 , G10H1/06 , G10H7/00
CPC分类号： G10H1/06 , G10H7/008 , G10H2250/435
摘要： Respective waveform data on pad strike sounds, rim strike sounds, and rim-shot sounds are stored in a waveform memory, and when a CPU detects a strike detection signal outputted by either of a pad sensor, and a rim sensor, provided in a head unit, a musical tone generating controller reads out waveform data on an strike sound corresponding to the strike detection signal from the waveform memory, thereby generating a musical tone signal corresponding thereto before outputting. Thereafter, when the CPU detects a strike detection signal outputted by the other of the pad sensor, and the rim sensor within a predetermined time, waveform data on a rim-shot sound are read out from the waveform data memory, thereby generating a musical tone signal corresponding thereto before outputting. A sound output unit produces electronic strike sounds corresponding to those musical tone signals, respectively.
摘要翻译：在波形存储器中存储有关于敲击声，轮辋撞击声和边缘拍摄声音的相应波形数据，并且当CPU检测到提供在头部中的垫传感器和边缘传感器中的任一个输出的击打检测信号音乐发生控制器从波形存储器中读出与罢工检测信号相对应的打击声音的波形数据，从而在输出之前产生与之对应的乐音信号。此后，当CPU检测到由另一个焊盘传感器输出的触发检测信号和边缘传感器在预定时间内时，从波形数据存储器中读出关于边缘声音的波形数据，从而产生音调输出之前对应的信号。声音输出单元分别产生与那些乐音信号相对应的电子敲击声。

15. 发明授权

US08543387B2 Estimating pitch by modeling audio as a weighted mixture of tone models for harmonic structures 有权
标题翻译：通过将音频建模为谐波结构的音调模型的加权混合来估计音高
公开(公告)号：US08543387B2
公开(公告)日：2013-09-24
申请号：US11849217
申请日：2007-08-31
申请人： Masataka Goto , Takuya Fujishima , Keita Arimoto
发明人： Masataka Goto , Takuya Fujishima , Keita Arimoto
IPC分类号： G10L11/04 , G10L19/14 , G10L19/00
CPC分类号： G10H3/125 , G10H2210/066 , G10H2250/031 , G10L25/90
摘要： Disclosed herein is a pitch estimation apparatus and associated methods for estimating a fundamental frequency of an audio signal from a fundamental frequency probability density function by modeling the audio signal as a weighted mixture of a plurality of tone models corresponding respectively to harmonic structures of individual fundamental frequencies, so that the fundamental frequency probability density function of the audio signal is given as a distribution of respective weights of the plurality of the tone models.
摘要翻译：本文公开了一种音调估计装置和相关方法，用于通过对音频信号进行建模来模拟音频信号的基频，分别对应于分别对应于各个基本频率的谐波结构的多个音调模型，使得音频信号的基频概率密度函数被给出为多个音调模型的相应权重的分布。

16. 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.

17. 发明申请

US20120192701A1 SEARCHING FOR A TONE DATA SET BASED ON A DEGREE OF SIMILARITY TO A RHYTHM PATTERN 有权
标题翻译：基于与RHYTHM图案类似程度的音调数据集搜索
公开(公告)号：US20120192701A1
公开(公告)日：2012-08-02
申请号：US13395433
申请日：2011-12-01
申请人： Daichi Watanabe , Keita Arimoto
发明人： Daichi Watanabe , Keita Arimoto
IPC分类号： G10H7/00
CPC分类号： G10H1/40 , G10H2210/005 , G10H2210/071 , G10H2210/341 , G10H2210/361 , G10H2240/141
摘要： It is an object of the present invention to provide an improved technique for searching for a tone data set of a phrase constructed in a rhythm pattern that satisfies a predetermined condition of similarity to a rhythm pattern intended by a user. The user inputs a rhythm pattern via a rhythm input device. An input rhythm pattern storage section stores the input rhythm pattern into a RAM on the basis of clock signals output from a bar line clock output section and trigger data included in the input rhythm pattern. A rhythm pattern search section searches through a rhythm database for a tone data set presenting the highest degree of similarity to the stored input rhythm pattern. A performance processing section causes a sound output section to audibly output the searched-out tone data set.
摘要翻译：本发明的目的是提供一种用于搜索以节拍模式构成的短语的音调数据集的改进技术，其满足与用户想要的节奏模式相似的预定条件。用户通过节奏输入设备输入节奏模式。输入节奏模式存储部分基于从条形线时钟输出部分输出的时钟信号和触发包括在输入节奏模式中的数据，将输入的节奏模式存储在RAM中。节奏模式搜索部分通过节奏数据库搜索与存储的输入节奏模式呈现最高相似度的乐音数据集。演奏处理部分使声音输出部分可听见地输出搜索出的乐音数据集。

18. 发明授权

US07754958B2 Sound analysis apparatus and program 有权
标题翻译：声音分析仪器和程序
公开(公告)号：US07754958B2
公开(公告)日：2010-07-13
申请号：US11849232
申请日：2007-08-31
申请人： Masataka Goto , Takuya Fujishima , Keita Arimoto
发明人： Masataka Goto , Takuya Fujishima , Keita Arimoto
IPC分类号： G10H1/00
CPC分类号： G10H3/125 , G10H2210/066
摘要： A sound analysis apparatus stores sound source structure data defining a constraint on one or more of sounds that can be simultaneously generated by a sound source of an input audio signal. A form estimation part selects fundamental frequencies of one or more of sounds likely to be contained in the input audio signal with peaked weights from various fundamental frequencies during sequential updating and optimizing of weights of tone models corresponding to the various fundamental frequencies, so that the sounds of the selected fundamental frequencies satisfy the sound source structure data, and creates form data specifying the selected fundamental frequencies. A previous distribution imparting part imparts a previous distribution to the weights of the tone models corresponding to the various fundamental frequencies so as to emphasize weights corresponding to the fundamental frequencies specified by the form data created by the form estimation part.
摘要翻译：声音分析装置存储定义对可由输入音频信号的声源同时产生的一个或多个声音的约束的声源结构数据。形式估计部分在顺序更新和优化对应于各种基本频率的乐曲模型的权重的情况下，从各种基本频率中选出可能包含在输入音频信号中的一个或多个声音的基本频率，使得声音所选择的基本频率满足声源结构数据，并且创建指定所选基频的形式数据。先前的分配赋予部分赋予与各种基本频率相对应的乐音模型的权重的先前分布，以便强调与由表单估计部分创建的表单数据指定的基本频率相对应的权重。

19. 发明授权

US07589275B2 Electronic hi-hat cymbal 有权
标题翻译：电子hi钹钹
公开(公告)号：US07589275B2
公开(公告)日：2009-09-15
申请号：US11132596
申请日：2005-05-18
申请人： Keita Arimoto
发明人： Keita Arimoto
IPC分类号： G10H3/00
CPC分类号： G10H1/02 , G10H7/008 , G10H2250/435
摘要： An electronic hi-hat cymbal comprises a hi-hat having a strike detector, a pedal unit having a stepped degree detector, a waveform data memory for storing a plurality of electronic hi-hat sound waveform data, corresponding to respective stepped degrees, in a plurality of stages, a CPU, a musical tone generating controller, and so forth. The CPU causes the musical tone generating controller to read out electronic hi-hat sound waveform data corresponding to a stepped degree in the pedal unit from the waveform data memory when a strike to the hi-hat is detected to thereby generate a musical tone signal before outputting, and when a change occurs to the stepped degree during a musical tone being produced thereafter, to read out electronic hi-hat sound waveform data corresponding to a new stepped degree halfway through to thereby generate a musical tone signal to be outputted, which is continued while the musical tone is being produced.
摘要翻译：电子hat钹包括具有罢工检测器的hi帽，具有台阶度检测器的踏板单元，用于存储对应于相应阶梯度的多个电子hat声音波形数据的波形数据存储器，多个级，CPU，乐音产生控制器等。当检测到踩hat的撞击时，CPU使音乐发生控制器从波形数据存储器中读出与踏板单元中的阶梯度相对应的电子嘘声声音波形数据，从而在之前产生乐音信号输出，并且当在此之后产生的乐音中发生阶跃程度的变化时，读取对应于新的阶跃程度的电子嗨声音波形数据，从而生成要输出的乐音信号，即，音乐正在生产中继续。

20. 发明申请

US20090216354A1 Sound signal processing apparatus and method 有权
标题翻译：声音信号处理装置及方法
公开(公告)号：US20090216354A1
公开(公告)日：2009-08-27
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
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.
摘要翻译：针对每个单位部分提取声音信号的字符值，并且以矩阵形式计算并排列各个单位部分的字符值之间的相似度。矩阵在每列中排列相似度，通过比较每个单位部分的声音信号和通过将声音信号延迟等于时间长度的整数倍而得到的延迟声音信号单位部分，并且其具有与不同时间差相关联的多个列。对于与矩阵中的不同时间差对应的每个列计算重复概率。识别重复概率分布中的多个峰。通过将参考矩阵与相似度矩阵进行比较来识别声音信号中的环路区域。

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