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公开(公告)号：US08183452B2
公开(公告)日：2012-05-22
申请号：US13052919
申请日：2011-03-21
申请人： Taro Shirahama
发明人： Taro Shirahama
IPC分类号： G10H1/00
CPC分类号： G10H7/045 , G10H7/00 , G10H2230/031 , G10H2250/541
摘要： Waveform data stored in an external memory are transferred from the external memory to an internal waveform memory and read out from the waveform memory to reproduce a tone. Transfer instruction is generated each time data readout from the waveform memory progresses by one page, and the transfer instruction is registered into a transfer queue. Thus, in response to the transfer instruction from the queue, the waveform data are read out on page by page from the external memory and stored into the waveform memory. The external memory also stores therein error correction code attached per page. As the waveform data are transferred from the external memory to the waveform memory, an error is detected using the error correction code, and if the error is correctable, the error is corrected. If the error is uncorrectable, volume of a tone being generated is rapidly attenuated, or a warning is issued.
摘要翻译： 存储在外部存储器中的波形数据从外部存储器传送到内部波形存储器，并从波形存储器读出以再现音调。 每当从波形存储器读出的数据进行一页时，产生传送指令，并将传送指令登记到传送队列中。 因此，响应于来自队列的传送指令，波形数据从外部存储器逐页读出并存储到波形存储器中。 外部存储器还存储每页附加的纠错码。 当波形数据从外部存储器传送到波形存储器时，使用纠错码检测到错误，如果错误可纠正，则更正错误。 如果错误是不可校正的，则产生的音调的音量被快速衰减，或发出警告。
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公开(公告)号：US20120031256A1
公开(公告)日：2012-02-09
申请号：US13196741
申请日：2011-08-02
IPC分类号： G10H7/00
CPC分类号： G10H1/053 , G10H1/187 , G10H1/22 , G10H7/045 , G10H2210/295 , G10H2230/041 , G10H2240/145 , G10H2240/311 , G10H2250/615
摘要： In response to detection of a note-on instruction, a CPU assigns a tone generating unit comprising two tone generating channels and sets tone color control data of the assigned tone generating unit into tone generator registers. The tone color control data includes a parameter common to the two channels. Once the CPU gives a tone generation start instruction to a tone generator, the tone generator accumulates a frequency number common to the two channels to thereby generate a progressive phase common to the two channels. Waveform readout section reads out left-channel and right-channel waveform data from a waveform memory on the basis of the phase and waveform selecting information of the left and right channels. Tone characteristics of the read-out left- and right-channel waveform data are controlled by a characteristic control section on the basis of a characteristic control parameter common to the two channels.
摘要翻译： 响应于音符指示的检测，CPU分配包括两个乐音产生通道的乐音产生单元，并将所分配的乐音产生单元的音色控制数据设置成乐音发生器寄存器。 色调控制数据包括两个通道共用的参数。 一旦CPU向乐音发生器发出乐音产生开始指令，音调发生器就累积两个通道共同的频数，从而生成两个通道共同的渐进相位。 波形读出部根据左右声道的相位和波形选择信息，从波形存储器读出左声道和右声道波形数据。 读出的左声道和右声道波形数据的音调特性由特征控制部根据两声道共用的特征控制参数进行控制。
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公开(公告)号：US06900381B2
公开(公告)日：2005-05-31
申请号：US10145782
申请日：2002-05-16
CPC分类号： G10H7/045 , G10H2210/225 , G10H2230/015 , G10H2240/056 , G10H2240/251 , G10H2250/145 , G10H2250/281 , G10H2250/285 , G10H2250/291 , G10H2250/545 , G10H2250/631
摘要： A method and apparatus are provided for changing the pitch of a tabulated waveform in wavetable based synthesizers. Harmonics that normally would be aliased before a transposition process are removed by a discrete time low pass filter at the same time that the tabulated waveform is reconstruction and resampling.
摘要翻译： 提供了一种用于改变基于波表的合成器中的列表波形的音调的方法和装置。 在转置处理之前通常将被别名的谐波通过离散时间低通滤波器去除，同时制表波形是重建和重采样。
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公开(公告)号：US4423655A
公开(公告)日：1984-01-03
申请号：US376105
申请日：1982-05-07
申请人： William D. Turner
发明人： William D. Turner
摘要： The present invention relates to economically fabricated means for the generation and processing, member selection, and acoustic radiation of pluralities of individual tone currents originating from at least one high frequency source and formed by note-information temporarily transferred through key depression, from permanent electronic memories to temporary memories in small numbers of standard tone units, in precise duplication of properties of pipe organ sound. There is described an electronic transfer organ for duplicating twenty-six known properties of pipe organ sound. The illustrative, inventive instrument employs completely standardized circuitry except for automatically programmable memories for each organ voice, which contain all the information required to form, switch and variously decouple all the notes in that voice. When keyboard keys are depressed, the information for corresponding notes is transferred to temporary memories in small numbers of tone units which then generate and switch the individual notes, without recourse to separate and permanent individual circuitry for each note. Dynamic keyers duplicate the keying effects of tracker action pipe organs. Sigmoid switches impart individualized tonal attack and decay patterns which preserve smooth keying at all speeds. All tone frequencies, derived ultimately from at least one high frequency source, are randomly independent in phase, and remain permanently in the various degrees of optimal mistune which characterize organ pipes in good tune. A four-channel sound system implements the effects of the tone frequency decouplings, and of a plurality of multiresonant filter sets, which together duplicate the collective sound of organ pipes distributed in various arrays within pipe enclosures. Construction is modular by keyboard and associated elements. Keyboard modules are subject to intercoupling by electronic or other means, and to augmentation by various devices in the prior art which effect expressive playing and moderate and musical fluctuations of tones, which are characteristic of organ pipe sound.
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公开(公告)号：US20180277073A1
公开(公告)日：2018-09-27
申请号：US15910901
申请日：2018-03-02
发明人： Hiroki SATO , Hajime KAWASHIMA
CPC分类号： G10H1/0008 , G10H1/24 , G10H1/32 , G10H7/045 , G10H2230/031 , G10H2240/161
摘要： A musical sound generation device including a first memory having a plurality of waveform data, a second memory which stores waveform data read out from the first memory, and a control processor which controls such that, when a sound emission instruction is provided and specified waveform data is in the second memory, the waveform data is read out by the sound source processor, or controls such that, when a sound emission instruction is provided and specified waveform data is not in the second memory, the specified waveform data is transferred from the first memory to the second memory and read out by the sound source processor, in which the control processor controls such that waveform data satisfying a set condition is not subjected to a waveform data change by the transfer and waveform data not satisfying the set condition is subjected to the waveform data change by the transfer.
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公开(公告)号：US08389844B2
公开(公告)日：2013-03-05
申请号：US13196741
申请日：2011-08-02
IPC分类号： G10H7/00
CPC分类号： G10H1/053 , G10H1/187 , G10H1/22 , G10H7/045 , G10H2210/295 , G10H2230/041 , G10H2240/145 , G10H2240/311 , G10H2250/615
摘要： In response to detection of a note-on instruction, a CPU assigns a tone generating unit comprising two tone generating channels and sets tone color control data of the assigned tone generating unit into tone generator registers. The tone color control data includes a parameter common to the two channels. Once the CPU gives a tone generation start instruction to a tone generator, the tone generator accumulates a frequency number common to the two channels to thereby generate a progressive phase common to the two channels. Waveform readout section reads out left-channel and right-channel waveform data from a waveform memory on the basis of the phase and waveform selecting information of the left and right channels. Tone characteristics of the read-out left- and right-channel waveform data are controlled by a characteristic control section on the basis of a characteristic control parameter common to the two channels.
摘要翻译： 响应于音符指示的检测，CPU分配包括两个乐音产生通道的乐音产生单元，并将所分配的乐音产生单元的音色控制数据设置成乐音发生器寄存器。 色调控制数据包括两个通道共用的参数。 一旦CPU向乐音发生器发出乐音产生开始指令，音调发生器就累积两个通道共同的频数，从而生成两个通道共同的渐进相位。 波形读出部根据左右声道的相位和波形选择信息，从波形存储器读出左声道和右声道波形数据。 读出的左声道和右声道波形数据的音调特性由特征控制部根据两声道共用的特征控制参数进行控制。
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公开(公告)号：US20110232460A1
公开(公告)日：2011-09-29
申请号：US13052919
申请日：2011-03-21
申请人： Taro SHIRAHAMA
发明人： Taro SHIRAHAMA
IPC分类号： G10H7/04
CPC分类号： G10H7/045 , G10H7/00 , G10H2230/031 , G10H2250/541
摘要： Waveform data stored in an external memory are transferred from the external memory to an internal waveform memory and read out from the waveform memory to reproduce a tone. Transfer instruction is generated each time data readout from the waveform memory progresses by one page, and the transfer instruction is registered into a transfer queue. Thus, in response to the transfer instruction from the queue, the waveform data are read out on page by page from the external memory and stored into the waveform memory. The external memory also stores therein error correction code attached per page. As the waveform data are transferred from the external memory to the waveform memory, an error is detected using the error correction code, and if the error is correctable, the error is corrected. If the error is uncorrectable, volume of a tone being generated is rapidly attenuated, or a warning is issued.
摘要翻译： 存储在外部存储器中的波形数据从外部存储器传送到内部波形存储器并从波形存储器读出以再现音调。 每当从波形存储器读出的数据进行一页时，产生传送指令，并将传送指令登记到传送队列中。 因此，响应于来自队列的传送指令，波形数据从外部存储器逐页读出并存储到波形存储器中。 外部存储器还存储每页附加的纠错码。 当波形数据从外部存储器传送到波形存储器时，使用纠错码检测到错误，如果错误可纠正，则更正错误。 如果错误是不可校正的，则产生的音调的音量被快速衰减，或发出警告。
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公开(公告)号：US4528884A
公开(公告)日：1985-07-16
申请号：US515255
申请日：1983-07-19
申请人： Kinji Kawamoto , Kazuhiro Murase
发明人： Kinji Kawamoto , Kazuhiro Murase
CPC分类号： G10H7/045
摘要： A wave reading apparatus includes a wave generator for generating a plurality of wave signals, a read-out frequency generator for generating a plurality of read-out frequencies, a controller for controlling calculation, writing and reading of wave samples, a writing device, a plurality of buffer memories and a plurality of read-out devices. The controller informs requests of wave samples calculation to the wave generator in accordance with the read-out frequencies. The calculated wave samples are written through the writing device to the buffer memories and read out by the read-out device in accordance with the read-out frequencies, at least one of which is different in frequency from the remainder.
摘要翻译： 一种波形读取装置，包括用于产生多个波信号的波发生器，用于产生多个读出频率的读出频率发生器，用于控制波形样本的计算，写入和读取的控制器，写入装置， 多个缓冲存储器和多个读出装置。 控制器根据读出的频率向波发生器通知波形采样计算的请求。 所计算的波样本通过写入装置写入缓冲存储器，并且根据读出的频率由读出装置读出，其中至少一个频率与其余部分的频率不同。
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公开(公告)号：US4338849A
公开(公告)日：1982-07-13
申请号：US293273
申请日：1981-08-17
申请人： William D. Turner
发明人： William D. Turner
摘要： The present invention relates to economically fabricated means for the generation and processing, member selection, and acoustic radiation of pluralities of individual tone currents originating from at least one high frequency source and formed by note-information temporarily transferred through key depression, from permanent electronic memories to temporary memories in small numbers of standard tone units, in precise duplication of properties of pipe organ sound.There is described an electronic transfer organ for duplicating twenty-six known properties of pipe organ sound. The illustrative, inventive instrument employs completely standardized circuitry except for automatically programmable memories for each organ voice, which contain all the information required to form, switch and variously decouple all the notes in that voice. When keyboard keys are depressed, the information for corresponding notes is transferred to temporary memories in small numbers of tone units which then generate and switch the individual notes, without recourse to separate and permanent individual circuitry for each note. Dynamic keyers duplicate the keying effects of tracker action pipe organs. Sigmoid switches impart individualized tonal attack and decay patterns which preserve smooth keying at all speeds. All tone frequencies, derived ultimately from at least one high frequency source, are randomly independent in phase, and remain permanently in the various degrees of optimal mistune which characterize organ pipes in good tune. A four-channel sound system implements the effects of the tone frequency decouplings, and of a plurality of multiresonant filter sets, which together duplicate the collective sound of organ pipes distributed in various arrays within pipe enclosures. Construction is modular by keyboard and associated elements. Keyboard modules are subject to intercoupling by electronic or other means, and to augmentation by various devices in the prior art which effect expressive playing and moderate and musical fluctuations of tones, which are characteristic of organ pipe sound.
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公开(公告)号：US20030033338A1
公开(公告)日：2003-02-13
申请号：US10145782
申请日：2002-05-16
IPC分类号： G06F017/10
CPC分类号： G10H7/045 , G10H2210/225 , G10H2230/015 , G10H2240/056 , G10H2240/251 , G10H2250/145 , G10H2250/281 , G10H2250/285 , G10H2250/291 , G10H2250/545 , G10H2250/631
摘要： A method and apparatus are provided for changing the pitch of a tabulated waveform in wavetable based synthesizers. Harmonics that normally would be aliased before a transposition process are removed by a discrete time low pass filter at the same time that the tabulated waveform is reconstruction and resampling.
摘要翻译： 提供了一种用于改变基于波表的合成器中的列表波形的音调的方法和装置。 在转置处理之前通常将被别名的谐波通过离散时间低通滤波器去除，同时制表波形是重建和重采样。
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