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公开(公告)号：US20060086238A1
公开(公告)日：2006-04-27
申请号：US11255760
申请日：2005-10-21
IPC分类号： G10H7/00
CPC分类号： G10H1/0066 , G10H2230/041 , G10H2250/551
摘要： An apparatus and a method for reproducing a MIDI file are provided. In the apparatus and the method, a point that limits reproduction of a MIDI file is determined and reproduction of the MIDI file is forcibly terminated at the determined reproduction limitation point when the MIDI file is reproduced. Therefore, non-continuous points are reduced and thus noises are reduced, so that the MIDI file can be reproduced in high quality.
摘要翻译： 提供了一种用于再现MIDI文件的装置和方法。 在该装置和方法中，当MIDI文件被再现时，确定限制MIDI文件再现的点，并且在确定的再现限制点处强制终止MIDI文件的再现。 因此，非连续点被减少，因此噪声减小，使得可以高质量地再现MIDI文件。
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公开(公告)号：US08492639B2
公开(公告)日：2013-07-23
申请号：US12960310
申请日：2010-12-03
申请人： Keijiro Saino
发明人： Keijiro Saino
CPC分类号： G10H1/053 , G10H1/0008 , G10H1/0091 , G10H1/0575 , G10H3/125 , G10H7/008 , G10H2210/066 , G10H2210/205 , G10H2210/211 , G10H2250/551 , G10H2250/621
摘要： Phase setting section sets virtual phases in a frequency series of an audio signal. Unit wave extraction section extracts, from the frequency series, a unit wave of one cyclic period defined by the set virtual phases, for each of a plurality of time points. First generation section generates velocity information corresponding to a degree of compression/expansion, to a predetermined length, of the unit wave. Second generation section generates shape information indicative of a shape of a frequency spectrum of the unit wave having been adjusted. Variation component impartment section generates a variation component by use of the velocity information and shape information generated for the individual time points.
摘要翻译： 相位设置部分设置音频信号的频率系列中的虚拟相位。 单位波提取部分从频率序列中提取针对多个时间点中的每一个的由所设定的虚拟相位定义的一个循环周期的单位波。 第一代部分产生与单位波的预定长度相对应的速度信息。 第二代部生成表示已经调整的单位波的频谱的形状的形状信息。 变化分量公开部分通过使用针对各个时间点生成的速度信息和形状信息来生成变化分量。
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3.发明授权Method and apparatus for creating different waveforms when synthesizing musical sounds 失效合成音乐声音时创建不同波形的方法和装置
公开(公告)号：US6091269A
公开(公告)日：2000-07-18
申请号：US682383
申请日：1996-07-17
申请人： David P. Rossum
发明人： David P. Rossum
CPC分类号： G10H5/10 , G10H2250/551
摘要： A circuit and method for generating waveforms when synthesizing musical sounds. In one embodiment, the invention provides a multiplexer/shifter which modifies the phase angle input according to the particular waveform desired. Boolean logic gates further modify the multiplexer/shifter output based on the two most significant bits of the phase angle input and according to the particular waveform desired. Finally, a multiplier multiplies the multiplexer/shifter output with the output of the Boolean logic gates to produce the desired waveform. The invention may employ banks of exclusive OR gates and AND gates as the Boolean logic. Another embodiment of the invention provides a waveshaping method where a desired waveform is generated from a phase angle input. The phase angle input is multiplexed/shifted based on the particular waveform desired. The results of the multiplexing/shifting are then modified by Boolean logic gates, based on the two most significant bits of the phase angle input and according to the particular waveform desired. The results of the multiplexing/shifting and the Boolean logic are then multiplied together to produce the desired waveform.
摘要翻译： 一种在合成音乐声音时产生波形的电路和方法。 在一个实施例中，本发明提供一种多路复用器/移位器，其根据期望的特定波形修改相位角输入。 布尔逻辑门基于相位角输入的两个最高有效位并且根据期望的特定波形进一步修改多路复用器/移位器输出。 最后，乘法器将多路复用器/移位器输出与布尔逻辑门的输出相乘以产生所需的波形。 本发明可以使用异或门和与门的组作为布尔逻辑。 本发明的另一实施例提供一种波形整形方法，其中从相位角输入产生期望的波形。 相位角输入根据所需的特定波形进行复用/移位。 然后，基于相位角输入的两个最高有效位并根据所需的特定波形，通过布尔逻辑门来修改复用/移位的结果。 然后将复用/移位和布尔逻辑的结果相乘以产生期望的波形。
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公开(公告)号：US09837060B2
公开(公告)日：2017-12-05
申请号：US15456600
申请日：2017-03-13
发明人： Jacek Dobryniewski
CPC分类号： G10H1/14 , G10H1/0008 , G10H1/0066 , G10H3/18 , G10H2220/455 , G10H2250/551
摘要： A method for stringed instruments' pickup, the method comprising a step of: capturing mechanical vibrations of at least one string; and converting them to a signal representative of a string's current state, the method being characterized in that the capturing comprises the following steps: capturing, using an image capturing device, image frames comprising views of at least one musical instrument's string in a still state; storing the captured image as a reference of a still state; capturing (500), using the image capturing device, image frames comprising views of at least one musical instrument's string in a vibrating state; storing the captured image as a reference of a vibrating state; comparing (520) the still state reference with a vibrating state reference in order to find (530) amplitude of vibrations of each string as well as frequency of each string vibrations based on amplitude height in pixels with reference to the still state and determining a frequency of each vibrating string on the basis of the number of pixels between two nuts of at least half-period of a given periodic function.
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公开(公告)号：US20170270903A1
公开(公告)日：2017-09-21
申请号：US15456600
申请日：2017-03-13
发明人： Jacek DOBRYNIEWSKI
CPC分类号： G10H1/14 , G10H1/0008 , G10H1/0066 , G10H3/18 , G10H2220/455 , G10H2250/551
摘要： A method for stringed instruments' pickup, the method comprising a step of: capturing mechanical vibrations of at least one string; and converting them to a signal representative of a string's current state, the method being characterized in that the capturing comprises the following steps: capturing, using an image capturing device, image frames comprising views of at least one musical instrument's string in a still state; storing the captured image as a reference of a still state; capturing (500), using the image capturing device, image frames comprising views of at least one musical instrument's string in a vibrating state; storing the captured image as a reference of a vibrating state; comparing (520) the still state reference with a vibrating state reference in order to find (530) amplitude of vibrations of each string as well as frequency of each string vibrations based on amplitude height in pixels with reference to the still state and determining a frequency of each vibrating string on the basis of the number of pixels between two nuts of at least half-period of a given periodic function.
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公开(公告)号：US20110132179A1
公开(公告)日：2011-06-09
申请号：US12960310
申请日：2010-12-03
申请人： Keijiro SAINO
发明人： Keijiro SAINO
IPC分类号： G10H1/06
CPC分类号： G10H1/053 , G10H1/0008 , G10H1/0091 , G10H1/0575 , G10H3/125 , G10H7/008 , G10H2210/066 , G10H2210/205 , G10H2210/211 , G10H2250/551 , G10H2250/621
摘要： Phase setting section sets virtual phases in a frequency series of an audio signal. Unit wave extraction section extracts, from the frequency series, a unit wave of one cyclic period defined by the set virtual phases, for each of a plurality of time points. First generation section generates velocity information corresponding to a degree of compression/expansion, to a predetermined length, of the unit wave. Second generation section generates shape information indicative of a shape of a frequency spectrum of the unit wave having been adjusted. Variation component impartment section generates a variation component by use of the velocity information and shape information generated for the individual time points.
摘要翻译： 相位设置部分设置音频信号的频率系列中的虚拟相位。 单位波提取部分从频率序列中提取针对多个时间点中的每一个的由所设定的虚拟相位定义的一个循环周期的单位波。 第一代部分产生与单位波的预定长度相对应的速度信息。 第二代部生成表示已经调整的单位波的频谱的形状的形状信息。 变化分量公开部分通过使用针对各个时间点生成的速度信息和形状信息来生成变化分量。
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