公开(公告)号：US5641929A

公开(公告)日：1997-06-24

申请号：US493324

申请日：1995-06-21

申请人： Seiji Okamoto ,  Katsushi Ishii ,  Yutaka Washiyama ,  Sayoko Hirano

发明人： Seiji Okamoto ,  Katsushi Ishii ,  Yutaka Washiyama ,  Sayoko Hirano

IPC分类号： G10H7/10 ,  G10H1/12 ,  G10H1/46

CPC分类号： G10H7/105 ,  G10H2250/485 ,  G10H2250/491 ,  G10H2250/501 ,  Y10S84/09

摘要： Ratios of frequencies of frequency components of formant waveform signals are changed, and consonance of frequency components of a musical tone is controlled. Moreover, amplitudes, frequencies or numbers of formants are controlled depending upon the musical factors, making rich the contents for changing the musical tones.

摘要翻译： 共振峰波形信号的频率分量的频率的比率被改变，并且控制乐音的频率分量的协调。 此外，共振峰的振幅，频率或数量根据音乐因素进行控制，丰富了改变乐音的内容。

公开(公告)号：US06762357B2

公开(公告)日：2004-07-13

申请号：US10123118

申请日：2002-04-17

申请人： Yutaka Washiyama ,  Seiji Okamoto

发明人： Yutaka Washiyama ,  Seiji Okamoto

IPC分类号： G10H106

CPC分类号： G10H1/0091 ,  G10H1/125 ,  G10H2210/281 ,  G10H2250/046

摘要： Resonance is realized at a desired plurality of tone pitches even after the musical tone signals of a plurality of channels have been synthesized; synthesized musical tone signals are successively delayed, the musical tone signals that are successively delayed are weighted, synthesized and output; the delayed, weighted, synthesized and outputted musical tone signals are fed back, and a series of successive delays, weights, synthesizes and outputs by the feed back are repeated and thus resonance characteristics is imparted; the amount of weighting the musical tone signals successively delayed is determined based upon a relationship among the delay feedback period, the period of sampling the generated musical tone signals and the tone pitch period of the resonance sound imparted with resonance characteristics, and a frequency of the resonance characteristics are determined; Therefore, the resonance characteristics are added at a desired tone pitch after the plurality of musical tone signals are synthesized into one. Accordingly, the resonance processing is conducted very simply.

摘要翻译： 即使在多个频道的乐音信号已被合成之后，谐振也以期望的多个音调音调实现; 合成音乐信号被连续延迟，连续延迟的乐音信号被加权，合成并输出; 延迟，加权，合成和输出的乐音信号被反馈，并且重复由反馈合成和输出的一系列连续的延迟，权重，从而赋予谐振特性; 基于连续延迟的乐音信号的加权量基于延迟反馈时段，对所产生的乐音信号进行采样的周期与以共振特性赋予的共鸣音的音调周期之间的关系，以及频率 确定谐振特性; 因此，在将多个乐音信号合成为一个之后，谐振特性以所需的音调相加。 因此，谐振处理非常简单地进行。

公开(公告)号：US5691496A

公开(公告)日：1997-11-25

申请号：US600000

申请日：1996-02-14

申请人： Takashi Suzuki ,  Seiji Okamoto ,  Katsushi Ishii ,  Yutaka Washiyama

发明人： Takashi Suzuki ,  Seiji Okamoto ,  Katsushi Ishii ,  Yutaka Washiyama

IPC分类号： G10H1/12 ,  G10H5/00

CPC分类号： G10H5/002 ,  G10H1/125 ,  G10H2250/485 ,  G10H2250/501

摘要： Only in a transient band of a filter, substantially all frequency bands of the musical tone waveform are subjected to filter processing. Due to this, the drawback that the amount of change of the frequency characteristic of the musical tone gradually changes as a whole from a fundamental wave toward a harmonics and only one part of the frequency characteristic of the musical tone changes is eliminated. Also, the density of frequency components of the frequency band of the musical tone waveform does not change, the related frequency band is shifted in frequency, subjected to filter processing, and further shifted to a frequency in accordance with the musical tone pitch. Due to this, a specific range of the filter characteristic is selected, and the musical tone is subjected to the filter control only within this range. Then, after the filter processing, the musical tone is shifted in frequency in accordance with the musical tone pitch, and therefore the musical tone is subjected to the filter processing irrespective of the musical tone pitch.Further, the density of the frequency components of the frequency band of the musical tone waveform does not change and the related frequency band is shifted in frequency. Due to this, a harmonics ratio of the frequency components of the frequency band changes, a timbre (musical tone quality) finely changes, and a control on the musical tone which has not conventionally existed is achieved. Also, gains of boundary portions of frequency bands of a plurality of partial musical tone waveforms subjected to the filter processing are matched. Due to this, the gains of the boundary portions of the frequency bands of the partial musical tone waveforms are matched, and a well balanced synthesized musical tone is output.

摘要翻译： 仅在滤波器的瞬态频带中，乐音波形的基本上所有的频带都进行滤波处理。 由此，音调的频率特性的变化量从基波向谐波逐渐变化，并且仅消除了音调的频率特性的一部分变化的缺点。 此外，乐音波形的频带的频率分量的密度不变，相关频带在频率上移位，进行滤波处理，并且根据音调音调进一步移位到频率。 由此，选择滤波器特性的特定范围，并且仅在该范围内对音调进行滤波器控制。 然后，在滤波处理之后，音调根据音调音调而频移，因此音乐不受音调音调的影响而进行滤波处理。 此外，乐音波形的频带的频率分量的密度不变，相关频带的频率偏移。 由此，频带的频率分量的谐波比变化，音色（乐音质）精细变化，并且实现了对传统上不存在的乐音的控制。 此外，进行滤波处理的多个部分乐音波形的频带的边界部分的增益相匹配。 由此，使部分乐曲波形的频带的边界部分的增益相匹配，并输出良好平衡的合成乐曲。

公开(公告)号：US5376753A

公开(公告)日：1994-12-27

申请号：US44371

申请日：1993-04-06

申请人： Taichi Kosugi ,  Yutaka Washiyama

发明人： Taichi Kosugi ,  Yutaka Washiyama

IPC分类号： G10H1/053 ,  G10H1/18

CPC分类号： G10H1/053 ,  Y10S84/07

摘要： A key touch detector, for an electronic musical instrument, that detects key touch states, comprises: a first switch to be closed at a first key displacement position disposed along the line of travel of a depressed key; a second switch to be closed at a second key displacement position disposed along the line of travel of the depressed key; a key depression detector for detecting the closure of the first switch and the closure of the second switch; a touch data computer for computing touch data for the depressed key during a period that begins following the closure of the first switch and ends with the closure of the second switch; and delay circuitry for deferring initiation of touch data computation by the touch data computer until a predetermined time has elapsed following the closure of the first switch.

摘要翻译： 一种用于检测键触摸状态的电子乐器的按键触摸检测器，包括：沿着按下的键的行进线布置的第一键位移位置处关闭的第一开关; 第二开关，其沿着沿着所述凹陷键的行进线设置的第二键位移位置关闭; 用于检测第一开关的闭合和第二开关闭合的按键抑制检测器; 触摸数据计算机，用于在开始于所述第一开关的闭合开始并且随着所述第二开关的闭合而结束的期间中计算所述按下的键的触摸数据; 以及用于延迟由触摸数据计算机启动触摸数据计算的延迟电路，直到在第一开关闭合之后经过预定时间。

公开(公告)号：US5308917A

公开(公告)日：1994-05-03

申请号：US984519

申请日：1992-12-02

申请人： Mineo Kitamura ,  Yutaka Washiyama

发明人： Mineo Kitamura ,  Yutaka Washiyama

IPC分类号： G10B3/12 ,  G10C3/12 ,  G10H1/00 ,  G10H1/18 ,  G10H1/24 ,  G10H1/46

CPC分类号： G10H1/24 ,  G10H1/18 ,  G10H1/46 ,  Y10S84/07

摘要： This invention discloses a touch response setting apparatus with which a player can rewrite a touch response curve for converting key touch data into tone generation tone level data. The touch response curve is defined by a polygonal line having at least a low touch setting point and a high touch setting point, and is stored in a RAM which receives a key touch input as an address, and outputs tone level data. In a test mode, low-touch (piano) and high-touch (forte) key operations corresponding to the touch setting points are performed, and an average value of a plurality of key depression strengths upon these key operations is obtained. When a predetermined value is given as tone level data corresponding to a touch average value at each touch setting point, the inclination of each segment of the polygonal line is determined. Thus, points on the segments are interpolated, and generated touch response curve data is stored in the RAM.

摘要翻译： 本发明公开了一种触摸响应设定装置，通过该触摸响应设定装置，玩家可以通过该触摸响应设定装置重写用于将键触摸数据转换为乐音产生音级数据的触摸响应曲线。 触摸响应曲线由至少具有低触摸设置点和高触摸设置点的折线来定义，并且被存储在接收按键触摸输入作为地址的RAM中，并且输出音调电平数据。 在测试模式中，执行与触摸设置点相对应的低触摸（钢琴）和高触摸（强制）键操作，并且获得这些键操作时的多个按键强度的平均值。 当将预定值作为与每个触摸设置点处的触摸平均值对应的音调电平数据给出时，确定多边形线的每个段的倾斜度。 因此，片段上的点被内插，并且生成的触摸响应曲线数据被存储在RAM中。

公开(公告)号：US5245126A

公开(公告)日：1993-09-14

申请号：US433015

申请日：1989-11-07

申请人： Tsutomu Saito ,  Yutaka Washiyama ,  Yoichi Nagashima

发明人： Tsutomu Saito ,  Yutaka Washiyama ,  Yoichi Nagashima

IPC分类号： G10H1/057 ,  G10H7/06

CPC分类号： G10H1/0575 ,  G10H7/06

摘要： A waveform data storing unit stores waveform data only at steps midway among a top zero level step and originally sampled steps at every sampling period from the top zero level step. An output means is included for outputting the waveform data at a moment staggered from another moment, at which the waveform data at the top zero level step and the originally sampled steps are ordinarily read out, by a period of time corresponding to half a step. The occurrence of a difference in phase of the read-out waveform is prevented without the need of a data correction unit. The waveform data storing unit stores midway-step data which are averages of waveform data at adjoining originally sampled steps and difference data representing the difference between the waveform data at the originally sampled steps and the midway-step data. A fine waveform can therefore be obtained while using a smaller quantity of data.

摘要翻译： 波形数据存储单元仅在上零级电平步骤中间的步骤中存储波形数据，并且在从顶零位电平步骤的每个采样周期开始采样步骤。 包括一个输出装置，用于在从另一时刻交错的时刻输出波形数据，在该时刻，通常将顶部零电平步骤的波形数据和原始采样步骤读出相当于半步的时间段。 在不需要数据校正单元的情况下，可以防止出现读出波形的相位差。 波形数据存储单元存储中间步数据，它们是相邻原始采样步骤的波形数据的平均值，以及表示原始采样步骤的波形数据与中间步数据之间的差的差数据。 因此，可以在使用较少量的数据的同时获得精细的波形。

公开(公告)号：US5665931A

公开(公告)日：1997-09-09

申请号：US312612

申请日：1994-09-27

申请人： Yutaka Washiyama

发明人： Yutaka Washiyama

IPC分类号： G10H7/08 ,  G10H1/08 ,  G10H7/10 ,  G10L13/00 ,  G10H7/00 ,  G10H1/06

CPC分类号： G10H7/105 ,  G10H2250/481 ,  G10H2250/491

摘要： According to the invention, formant waveform signals which are waveforms synthesized from frequency components corresponding to formants of musical tones, are stored and read out or generated. When such formant waveform signal is read out or generated, the density of frequency components of the formant of the formant waveform signal is controlled and also the frequency of a formant center signal which is to be synthesized is a center signal with the formant waveform signal is controlled. In this way, the formant waveform signal is synthesized on the formant center signal. Thus, the density of formant frequency components and the formant center signal frequency can be controlled separately and independently. Further, the kind of formant waveform signal is switched according to musical factors of musical tone. Thus, different kinds of formant waveform signals to be output are switched according to musical factors of musical tones.

摘要翻译： 根据本发明，存储并读出或产生作为对应于音调共振峰的频率分量合成的波形的共振峰波形信号。 当共振峰波形信号被读出或产生时，共振峰波形信号的共振峰的频率分量的密度被控制，并且要合成的共振峰中心信号的频率是共振峰波形信号的中心信号 受控。 以这种方式，共振峰波形信号在共振峰中心信号上合成。 因此，共振峰频率分量和共振峰中心信号频率的密度可以分别独立地控制。 此外，根据乐音的音乐因素来切换共振峰波形信号的种类。 因此，根据音乐音调的因素来切换要输出的不同种类的共振峰波形信号。

公开(公告)号：US5149902A

公开(公告)日：1992-09-22

申请号：US619864

申请日：1990-11-29

申请人： Yutaka Washiyama

发明人： Yutaka Washiyama

IPC分类号： G10H1/12

CPC分类号： G10H1/125 ,  G10H2250/095 ,  G10H2250/115 ,  G10H2250/121 ,  G10H2250/545 ,  Y10S84/09

摘要： A filter calculating section has a plurality of basic filters formed on a time-divisional basis. The timbre of a musical tone signal is controlled by a memory section, an accumulator, a selector, an I/O assign section and a control section using the basic filters formed by the filter calculating section. A digital filter coefficient stored in a digital filter coefficient memory is read out using integer data output from a cutoff controller as an address. An interpolation circuit interpolates this digital filter coefficient on the basis of fraction data output from the cutoff controller. Based on the interpolated digital filter coefficient, the timbre of a musical tone signal is controlled.

摘要翻译： 滤波器计算部分具有以分时为基础形成的多个基本滤波器。 乐音信号的音色由存储部分，累加器，选择器，I / O分配部分和使用由滤波器计算部分形成的基本滤波器的控制部分来控制。 使用从截止控制器输出的整数数据作为地址，读出存储在数字滤波器系数存储器中的数字滤波器系数。 插值电路根据从切断控制器输出的分数数据内插该数字滤波器系数。 基于内插的数字滤波器系数，控制乐音信号的音色。

公开(公告)号：US5146834A

公开(公告)日：1992-09-15

申请号：US712861

申请日：1991-06-10

申请人： Gen Izumisawa ,  Yutaka Washiyama

发明人： Gen Izumisawa ,  Yutaka Washiyama

IPC分类号： G10H7/02 ,  G10H7/04 ,  G10H7/12

CPC分类号： G10H7/12 ,  G10H7/04 ,  G10H2250/621 ,  G10H2250/631

摘要： A tone generating apparatus comprises a wave memory, an address calculator, an interpolating circuit. In the wave memory is stored tone wave data of a single period to be repeatedly read out stored between a loop top address (integer address) and an address preceding by "1" a loop end address (integer address), same tone wave data as stored at the loop top address being stored at the loop end address. The address calculator generates a read address including a fraction portion, which sequentially increases from the loop top address of the wave memory toward the loop end address at an interval corresponding to a pitch, and returns to the loop top address when exceeding the loop end address. When the read address generated by the address calculator includes a significant fraction portion, the interpolating circuit prepares tone wave data acquired by proportional distribution of tone wave data, read out from the wave memory with an integer portion of the read address used as an address, and tone wave data, read out from the wave memory with a value acquired by adding "1" to the integer portion of the read address used as an address, using the fraction portion. Musical tones are generated on the basis of the tone wave data prepared by the interpolating circuit.

摘要翻译： 乐音产生装置包括波存储器，地址计算器，内插电路。 在波形存储器中存储单个周期的音波数据，以重复读出存储在循环结束地址（整数地址）之间的循环顶部地址（整数地址）和前面的地址（整数地址）之间的地址，相同的音频波数据 存储在循环结束地址处存储的循环顶部地址。 地址计算器生成包含分数部分的读取地址，该分段部分以对应于间距的间隔从波形存储器的循环顶部地址逐渐增加到循环结束地址，并且当超过循环结束地址时返回到环回地址 。 当由地址计算器产生的读地址包含有重要的分数部分时，内插电路准备通过用作为地址的读地址的整数部分从波形存储器中读出的乐音波数据的比例分配获得的乐音波数据， 和音波数据，使用通过使用分数部分将用于作为地址的读取地址的整数部分加上“1”而获得的值从波形存储器读出。 基于由内插电路准备的音调波数据产生乐音。

公开(公告)号：US3982460A

公开(公告)日：1976-09-28

申请号：US613931

申请日：1975-09-16

申请人： Nobuharu Obayashi ,  Hikaru Hashizume ,  Noriji Sakashita ,  Seiji Kameyama ,  Sadaaki Ezawa ,  Toshio Kugisawa ,  Yutaka Washiyama ,  Tatsunori Kondo ,  Hironori Watanabe

发明人： Nobuharu Obayashi ,  Hikaru Hashizume ,  Noriji Sakashita ,  Seiji Kameyama ,  Sadaaki Ezawa ,  Toshio Kugisawa ,  Yutaka Washiyama ,  Tatsunori Kondo ,  Hironori Watanabe

IPC分类号： G10H7/00 ,  G10H1/057 ,  G10H7/12 ,  G10F1/00

CPC分类号： G10H1/057 ,  G10H7/12 ,  G10H2250/591

摘要： An apparatus for forming a musical-tone waveform for an electronic musical instrument characterized in that at least one cycle of a musical-tone waveform, which it is desired be produced, is divided in amplitude by dividing lines at equal intervals and sampling points on a time axis are determined from respective crossing points between the waveform and the dividing lines and the distance between the initial and the final sampling points is represented by an appropriate number of pulses so that each sampling point may be represented by a pulse number. There is further provided a memory circuit wherein each sampling point, that is, the pulse number thereof is set up in the form of a digital signal. Additionally, there is a set up in the form of a digital signal a tendency such as increase, decrease or equal at each sampling point with reference to the preceding sampling point. An envelope setting device is used wherein the envelope of a muscial-tone waveform, which it is desired be produced, is subjected to sampling and the analog amount of each sampling point is set up in the form of digital signal. An accumulatively adding device is employed whereby the output digital signal of the envelope setting device is accumulatively added to or subtracted from the output digital signal of the memory circuit. The accumulatively adding device is connected at its output terminal to a D-A converter for converting its output signal into an analog signal.

摘要翻译： 一种用于形成用于电子乐器的乐音波形的装置，其特征在于，要产生希望产生的乐音波形的至少一个周期通过以等间隔的分割线和 时间轴由波形和分割线之间的各个交叉点确定，并且初始和最终采样点之间的距离由适当数量的脉冲表示，使得每个采样点可以由脉冲数表示。 还提供了一种存储电路，其中每个采样点，即其脉冲数量以数字信号的形式被设置。 此外，以数字信号的形式设置参考前述采样点的每个采样点的增加，减小或相等的趋势。 使用信封设定装置，其中要产生希望产生的乐音波形的包络进行采样，并且以数字信号的形式设置每个采样点的模拟量。 使用累加装置，由此将包络线设定装置的输出数字信号累积地加到或从存储电路的输出数字信号中减去。 累加装置在其输出端连接到D-A转换器，用于将其输出信号转换为模拟信号。