公开(公告)号：US5498836A

公开(公告)日：1996-03-12

申请号：US418869

申请日：1995-04-07

申请人： Tetsuo Okamoto ,  Satoshi Usa

发明人： Tetsuo Okamoto ,  Satoshi Usa

IPC分类号： G10H1/00 ,  G10H1/02 ,  G10H1/053 ,  G10H1/24 ,  G10H5/00 ,  G10H7/00 ,  G10H7/08 ,  G10H7/10 ,  G01P3/00

CPC分类号： G10H1/0066 ,  G10H1/02 ,  G10H5/007

摘要： A controller for controlling a plurality of parameters to be used by a physical model tone signal synthesizer electronically simulating a tone generating mechanism of a natural musical instrument. In accordance with musical performance signals such as dynamics and tone color entered by a player, musical instrument playing parameters such as breath and embouchure, or bow speed and bow pressure, are generated by using correlation functions.

摘要翻译： 一种用于控制要由电子模拟自然乐器的乐音产生机构的物理模型音调信号合成器使用的多个参数的控制器。 根据玩家输入的动态和音色等音乐表演信号，通过使用相关函数产生演奏诸如呼吸和胸围的乐器或弓速度和弓形压力的乐器。

公开(公告)号：US5113740A

公开(公告)日：1992-05-19

申请号：US470626

申请日：1990-01-26

申请人： Tsutomu Saito

发明人： Tsutomu Saito

IPC分类号： G10H1/057 ,  G10H7/00 ,  G10H7/02 ,  G10H7/10

CPC分类号： G10H7/02 ,  G10H1/0575 ,  G10H7/10 ,  G10H2250/621

摘要： A method of performing an operational expression representing an operation on first and second operands used for computing various problem data and information relating to musical tones, the method comprising the step of representing problem data, which are to be processed, by using a representation system by which the first and second operands have the same sign, and by which the value of one of the first and second operands represented by bits having orders higher than those of bits used for representing the other of the operands is reduced by effecting a suppressing operation by using a suppressing parameter having a value larger than the value that can be obtained by the one of the first and second operands represented by the higher-order bits and the value of which is to be reduced, the step of computing mantissa part data of the thus represented problem data in accordance with power part data of the thus represented problem data, and the step of performing an carry operation if a carry is generated in the mantissa data.

摘要翻译： 一种执行表示对用于计算各种问题数据和与音乐有关的信息的第一和第二操作数的操作的操作表达式的方法，该方法包括以下步骤：通过使用表示系统来表示要处理的问题数据 其中第一和第二操作数具有相同的符号，并且通过利用由第一操作数和第二操作数的相同符号表示的第一和第二操作数中的一个的值被减少， 使用具有大于由所述高阶位表示的第一和第二操作数可以获得的值的值的抑制参数，并且其值将被减少的步骤，计算所述第一和第二操作数的尾数部分数据的步骤 由此表示根据如此表示的问题数据的功率部分数据的问题数据，以及执行进位操作的步骤 在尾数数据中产生进位。

公开(公告)号：US4612838A

公开(公告)日：1986-09-23

申请号：US665124

申请日：1984-10-26

申请人： Yoichi Nagashima ,  Tatsunori Kondo ,  Kiyomi Takauji ,  Mineo Kitamura ,  Tadashi Matsushima ,  Eiji Nagashima ,  Masafumi Mizoguchi

发明人： Yoichi Nagashima ,  Tatsunori Kondo ,  Kiyomi Takauji ,  Mineo Kitamura ,  Tadashi Matsushima ,  Eiji Nagashima ,  Masafumi Mizoguchi

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

CPC分类号： G10H7/105 ,  G10H2250/625

摘要： In an electronic musical instrument which generates a musical waveform by calculating the waveform amplitude value at each sample point through Fourier synthesis, there is provided a musical waveform generator for caculating and synthesizing a temporally varying musical waveform at a plurality of sample points, memory circuits for storing two kinds of musical waveforms obtained by the musical waveform generator one after the other and an interpolation circuit for interpolating the two musical waveforms at time intervals shorter than the time intervals used in the musical waveform generator.

摘要翻译： 在通过傅立叶合成计算每个采样点处的波形振幅值来生成音乐波形的电子乐器中，提供了一种用于在多个采样点处计时和合成时间变化的音乐波形的音乐波形发生器，用于存储电路 一个接一个地存储由音乐波形发生器获得的两种音乐波形，以及用于在比音乐波形发生器中使用的时间间隔短的时间间隔内插两个音乐波形的内插电路。

公开(公告)号：USRE31653E

公开(公告)日：1984-08-28

申请号：US431738

申请日：1982-09-30

申请人： Chifumi Takeuchi

发明人： Chifumi Takeuchi

IPC分类号： G10H1/053 ,  G10H7/08 ,  G10H7/10

CPC分类号： G10H7/105

摘要： An electronic musical instrument is of a harmonic synthesis type and is provided with an order number memory device which stores a plurality of order numbers of the harmonic components necessary to form respective tone colors, an amplitude coefficient memory device which stores a plurality of sets of amplitude coefficients for the respective harmonic components corresponding to the respective order of numbers stored in the order number memory device, and a tone color selector which controls the order number memory device and the amplitude coefficient memory device, when a certain tone color is selected, for causing the respective memory devices to produce the order numbers and the amplitude coefficients of a set corresponding to the selected tone color. According to the order numbers, respective harmonic component waves of a certain amplitude are produced and are multiplied with the amplitude coefficients and the multiplication products thus obtained are combined to synthesize musical tones having the selected tone color.By providing only necessary order numbers and coefficients, the memory size becomes small and the synthesizing speed becomes high.

公开(公告)号：US4466325A

公开(公告)日：1984-08-21

申请号：US372051

申请日：1982-04-26

申请人： Kiyomi Takauji

发明人： Kiyomi Takauji

IPC分类号： G10H7/00 ,  G10H1/24 ,  G10H1/46 ,  G10H7/10 ,  G10H1/08

CPC分类号： G10H7/105

摘要： A tone synthesizing system which prevents the dynamic range from becoming unduly wide with an increase in the number of tone tablet switches being selected concurrently in an electronic musical instrument of the type synthesizing a musical sound through the use of a discrete Fourier transfer. In the electronic musical instrument in which, for obtaining a desired musical waveshape, amplitude values at its sample points are computed through the synthesizing system using the discrete Fourier transfer, harmonic coefficients of the tones selected or sine-wave values in accordance with the number of tone tablet switches being simultaneously selected are attenuated at a desired rate to limit a maximum level of an accumulated value of the harmonic coefficients or sine-wave values as predetermined.

摘要翻译： 一种音频合成系统，其通过使用离散傅立叶转换在合成音乐声音的类型的电子乐器中同时选择音调图形输入板的数量的增加来防止动态范围变得过大。 在用于获得期望的音乐波形的电子乐器中，通过使用离散付里叶转换的合成系统来计算其采样点处的幅度值，所选择的音调的谐波系数或正弦波值根据 同时选择的音调平板电脑开关以期望的速率衰减，以将谐波系数或正弦波值的累积值的最大电平预定为预定值。

公开(公告)号：US4453441A

公开(公告)日：1984-06-12

申请号：US447080

申请日：1982-12-06

申请人： Ralph Deutsch

发明人： Ralph Deutsch

IPC分类号： G10H7/08 ,  G10H1/043 ,  G10H1/06 ,  G10H7/10

CPC分类号： G10H1/06 ,  G10H7/105

摘要： A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. A tone generation computation means is implemented using a combination of an even symmetric function and an odd symmetric function. One of these functions is scaled in magnitude in response to a modulation control signal. The scaled and unscaled functions are combined to produce a musical waveshape which is frequency modulated by changes in the level of the modulation control signal.

摘要翻译： 公开了一种键盘操作的电子乐器，其具有分配给致动的钥匙开关的多个音调发生器。 使用偶对称函数和奇对称函数的组合来实现音调生成计算装置。 这些功能中的一个响应于调制控制信号被大小地缩放。 缩放和未缩放的功能被组合以产生由调制控制信号的电平的变化进行频率调制的音乐波形。

公开(公告)号：US4331058A

公开(公告)日：1982-05-25

申请号：US209775

申请日：1980-11-24

申请人： Ralph Deutsch

发明人： Ralph Deutsch

IPC分类号： G10H1/18 ,  G10H1/38 ,  G10H1/46 ,  G10H7/08 ,  G10H7/10 ,  G10H1/02

CPC分类号： G10H1/38 ,  G10H1/46 ,  G10H7/105 ,  G10H2250/481

摘要： A keyboard operated electronic musical instrument having a number of keyboards in which the loudness balance of the accompaniment keyboards are adaptively maintained at a preselected loudness ratio with respect to the solo keyboard. The loudness balance is automatically maintained as the tone switches are altered and as the number of actuated notes varies on the keyboards. The balance ratio is accomplished by adaptively scaling the harmonic coefficients used in a discrete Fourier transform to generate the tones for the accompaniment keyboards.

摘要翻译： 具有多个键盘的键盘操作电子乐器，其中伴奏键盘的响度平衡相对于独奏键盘自适应地保持在预选的响度比。 当音调开关被改变并且随着键盘上激活的音符的数量变化时，响度平衡被自动维持。 平衡比通过自适应地缩放在离散傅里叶变换中使用的谐波系数来产生伴奏键盘的音调来实现。

公开(公告)号：US4326260A

公开(公告)日：1982-04-20

申请号：US166237

申请日：1980-07-07

申请人： Glenn M. Gross

发明人： Glenn M. Gross

IPC分类号： G10H7/08 ,  G10H7/10 ,  G06F1/02

CPC分类号： G10H7/10 ,  G10H7/08

摘要： A waveform generator for an electronic musical instrument comprises a signal generator (10) developing a binary signal sequentially increasing and decreasing in value at a selected rate and a memory (26) storing a plurality of parameter instructions at respective memory addresses, each memory address corresponding to a continuous group of values of the binary signal. An addressing circuit (24) addresses each memory address in response to the binary signal assuming a value within the group of values corresponding thereto. The binary signal is processed with the addressed parameter instructions in an arithmetic circuit (22,40) for developing a linear piecewise approximation of a desired waveform signal.

摘要翻译： 一种用于电子乐器的波形发生器包括信号发生器（10），用于以选定的速率顺序地增加和减小数值的二进制信号;以及存储器（26），存储多个参数指令在各自的存储器地址，每个存储器地址对应 到二进制信号的连续的一组值。 寻址电路（24）响应于二进制信号寻址每个存储器地址，假定与其对应的值组内的值。 二进制信号用算术电路（22,40）中的寻址参数指令进行处理，用于开发所需波形信号的线性分段近似。

公开(公告)号：US4313360A

公开(公告)日：1982-02-02

申请号：US134251

申请日：1980-03-26

申请人： Alfred H. Faulkner

发明人： Alfred H. Faulkner

IPC分类号： G10H7/00 ,  G10H7/08 ,  G10H7/10 ,  G10H1/08 ,  G10H5/06

CPC分类号： G10H7/002 ,  G10H7/08 ,  G10H7/10 ,  Y10S84/11 ,  Y10S84/23

摘要： Each harmonic of the ten provided is represented by a pair of binary-valued signals; one having the form A .sym. B .sym. C, where A, B and C are octavely related square waves, and the other being a square wave like C. Each pair of signals is coupled to a resistive divider by coupling elements in an additive relation under control of an individual adjustable voltage source. The coupling elements are weighted so as to minimize distortion in the signal resulting from the mixture. The resistive divider preemphasizes the signals representing each harmonic to compensate for a voltage controlled filter in the audio output used to eliminate high order distortion components. In one embodiment a .div.3 counter followed by a binary counter provides the binary-valued signals for harmonics of order 0.5.times.2.sup.n, where n is an integer, and a binary counter driven in parallel with the .div.3 counter provides the binary-valued signals for harmonics of order 1.5.times.2.sup.n. A read only memory provides the binary-valued signals for harmonics whose order is prime. In a second embodiment all of the binary-valued signals are provided by a read-only memory.

摘要翻译： 所提供的10个谐波由一对二进制值信号表示; 一个具有形式A（+）B（+）C，其中A，B和C是八度相关的方波，另一个是像C的方波。每对信号通过耦合元件耦合到电阻分压器 在单个可调电压源的控制下的相加关系。 耦合元件被加权，以便最小化由混合物产生的信号中的失真。 电阻分压器强调表示每个谐波的信号，以补偿用于消除高阶失真分量的音频输出中的电压控制滤波器。 在一个实施例中，二进制计数器后面的DIVIDED 3计数器提供二阶值信号，用于0.5x2n级的谐波，其中n是整数，并且与DIVIDED 3计数器并行驱动的二进制计数器提供二进制值信号 谐波1.5x2n。 只读存储器为顺序为素数的谐波提供二进制值信号。 在第二实施例中，所有二进制值信号由只读存储器提供。

公开(公告)号：US4300434A

公开(公告)日：1981-11-17

申请号：US150493

申请日：1980-05-16

申请人： Ralph Deutsch

发明人： Ralph Deutsch

IPC分类号： G10H1/14 ,  G10H7/04 ,  G10H7/08 ,  G10H7/10 ,  G10H1/02

CPC分类号： G10H7/04 ,  G10H7/08 ,  G10H7/10 ,  G10H2250/191 ,  G10H2250/481

摘要： In a musical instrument having one or more tone generators in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced points defining the waveform of one cycle of an audio signal are transferred sequentially from a note register to a digital-to-analog converter in repetitive cycles at a rate proportional to the pitch of the tone being generated, apparatus is provided for varying the spectral content of the tone in response to control signals. A loudness control signal causes loud tones to be produced with a greater number of harmonics than those for a soft tone. A formant control signal also causes the tones to have a time variant spectral quality.

摘要翻译： 在具有一个或多个音调发生器的乐器中，其中对应于定义音频信号的一个周期的波形的相应数量的均匀间隔的点的幅度的多个数据字从音符寄存器顺序地传送到数字 - 模拟转换器以与生成的音调的音调成比例的速率在重复周期中提供装置，用于响应于控制信号改变音调的频谱内容。 响度控制信号会产生比用于柔和音调的谐波更大数量的高音。 共振峰控制信号也使音调具有时变频谱质量。