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1.发明授权Musical synthesizer system and method using pulsed noise for simulating the noise component of musical tones 失效使用脉冲噪声模拟音乐噪声分量的音乐合成器系统和方法
公开(公告)号：US5157216A
公开(公告)日：1992-10-20
申请号：US464993
申请日：1990-01-16
申请人： Christopher D. Chafe
发明人： Christopher D. Chafe
CPC分类号： G10H5/007 , G10H1/08 , G10H2250/105 , G10H2250/121 , G10H2250/235 , G10H2250/445 , G10H2250/461 , G10H2250/515 , G10H2250/521 , Y10S84/10 , Y10S84/23
摘要： A music synthesizer simulates the musical tones of bowed string and wind instruments. The synthesizer includes a noise generator which generates pulsed noise signals, as well as a resonant system or signal generator which generates deterministic or periodic signals. In one embodiment, the pulsed noise signals are combined with the periodic signals to generate an improved synthesized musical sound. In another embodiment, pulsed noise is added to an excitation signal for energizing a resonating system, which may or may not be dynamically coupled to the excitation generator, resulting in the generation of synthesized sound having appropriate noise characteristics for bowed string and wind instruments.
摘要翻译： 音乐合成器模拟弓弦和乐器的乐音。 合成器包括产生脉冲噪声信号的噪声发生器，以及产生确定性或周期性信号的谐振系统或信号发生器。 在一个实施例中，脉冲噪声信号与周期信号组合以产生改进的合成音乐声音。 在另一个实施例中，将脉冲噪声加到激励信号上，以激励谐振系统，谐振系统可以动态地耦合到激励发生器，从而产生对于弓弦和管乐器具有合适噪声特性的合成声音。
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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
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。
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公开(公告)号：US4055103A
公开(公告)日：1977-10-25
申请号：US708897
申请日：1976-07-26
申请人： William V. Machanian
发明人： William V. Machanian
摘要： The embodiment of the invention disclosed herein is directed to an electronic musical instrument of the keyboard type wherein the audio frequency signal information is derived from a multi-frequency generator formed by an electronic oscillator and a plurality of divider circuits, and wherein programmable divider circuits are associated with the various keys of the keyboard to generate associated tone signal information. The programmable divider circuits are formed on a large scale integrated circuit chip and enable alteration of the numerical divisor so that different tone signals can be obtained from the same electronic circuitry thereby enabling the same type of LSI chip to be used for many different circuit configurations. The LSI chip also provides a scanning circuit that scans an X-Y matrix switching arrangement to determine which one of a plurality of key switches is closed. The integrated circuit unit has a plurality of such programmable divisors arranged to be operated from the same frequency, preferably there being four programmable divisors to obtain a multitude of output audio signal frequencies. Actuation of a key switch, chord button switch, or foot pedal will enable gate circuit components to cause a signal transfer from a matrix array to a read-only-memory circuit, which, in turn, enables selected ones of the programmable divisors for developing the desired audio signal frequencies.
摘要翻译： 本文公开的本发明的实施例涉及一种键盘式电子乐器，其中音频信号信息是从由电子振荡器和多个分频器电路形成的多频发生器导出的，并且其中可编程分频电路是 与键盘的各种键相关联以产生相关联的音调信号信息。 可编程分频器电路形成在大规模集成电路芯片上，并且能够改变数字除数，使得可以从相同的电子电路获得不同的音调信号，从而使得相同类型的LSI芯片可用于许多不同的电路配置。 LSI芯片还提供扫描电路，扫描X-Y矩阵切换装置以确定多个键开关中的哪一个关闭。 集成电路单元具有被布置为从相同频率操作的多个这样的可编程除数，优选地存在四个可编程除数以获得多个输出音频信号频率。 钥匙开关，弦按钮开关或脚踏板的致动将使得门电路组件能够将信号从矩阵阵列传送到只读存储器电路，这继而使得可选择的可编程除数用于开发 所需的音频信号频率。
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公开(公告)号：US3746775A
公开(公告)日：1973-07-17
申请号：US3746775D
申请日：1972-03-16
发明人： UCHIYAMA Y
摘要： In an electronic musical instrument, a sustain keyer circuit comprises a field effect transistor, a resistor and a keyoperated switch all connected in series between a ground a power line. An input tone signal supplied to the gate of the FET is keyed to appear at the drain thereof. A capacitor is connected across the key-operated switch. Between the capacitor and the ground is connected another FET which is switched on and off by a rectangular wave having a supra-audible frequency and a variable duty factor thereby exhibiting a variable average resistance, determining a sustain time in cooperation with the capacitor.
摘要翻译： 在电子乐器中，维持键控电路包括全场串联连接在电源线之间的场效应晶体管，电阻器和按键操作开关。 提供给FET的栅极的输入音信号被键入以在其漏极处出现。 电容器连接在钥匙开关上。 在电容器和地之间连接另一个FET，其由具有超声频率和可变占空比的矩形波接通和断开，从而呈现可变平均电阻，确定与电容器配合的维持时间。
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5.发明授权
公开(公告)号：US3569604A
公开(公告)日：1971-03-09
申请号：US3569604D
申请日：1965-05-12
申请人： WURLITZER CO
摘要： An electronic musical instrument, such as an organ, utilizing a plurality of constantly operating square wave generators, with the generators connected to utilization circuits by means of diodes which are normally biased off. Potential is switched selectively to the diodes upon closure of key switches to play the various tones. Diodes are shared in order that two diodes might be in series between each tone generator and utilization circuit for maximum isolation, while conserving the total number of diodes necessary. The diodes are supplied with potential through circuits which serve as integrating circuits for the square waves, whereby to round off the attack to produce or lead toward sawtooth wave shapes. Groups of diodes also are provided with are switched on simultaneously, and are connected to previously mentioned diodes for playing preselected groups of notes simultaneously to simulate a chimes effect.
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公开(公告)号：US3476866A
公开(公告)日：1969-11-04
申请号：US3476866D
申请日：1965-08-11
申请人： BALDWIN CO D H
发明人： CUNNINGHAM THOMAS W
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公开(公告)号：US3435123A
公开(公告)日：1969-03-25
申请号：US3435123D
申请日：1965-05-24
申请人： HAMMOND CORP
发明人： SCHRECONGOST RAY B
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8.发明授权
公开(公告)号：US3407260A
公开(公告)日：1968-10-22
申请号：US45521865
申请日：1965-05-12
申请人： HAMMOND CORP
发明人： SCHRECONGOST RAY B
IPC分类号： G10H1/057
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公开(公告)号：US3150228A
公开(公告)日：1964-09-22
申请号：US3491360
申请日：1960-06-09
申请人： GIBBS MFG & RES CORP
发明人： GIBBS THOMAS B , KRUG WILLIAM H , MARSHALL JAMES L
IPC分类号： G10H1/057
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公开(公告)号：US2986964A
公开(公告)日：1961-06-06
申请号：US62176956
申请日：1956-11-13
申请人： BALDWIN PIANO CO
IPC分类号： G10H1/057
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