公开(公告)号：US5647004A

公开(公告)日：1997-07-08

申请号：US179546

申请日：1994-01-10

申请人： Jack C. Sondermeyer ,  James W. Brown, Sr.

发明人： Jack C. Sondermeyer ,  James W. Brown, Sr.

IPC分类号： G10H1/16 ,  G10H3/18 ,  H03F1/32 ,  H03G7/06 ,  H03G3/00

CPC分类号： G10H1/16 ,  G10H3/187 ,  H03F1/327 ,  H03F1/3276 ,  H03G7/06 ,  H03F2200/549

摘要： A multi-stage solid state amplifier emulates the distortion associated with grid current flow in a multi-stage tube amplifier by means of a clipping device in the circuit between each series connected stage. In a particular embodiment, each stage includes a field effect transistor (FET) and the clipping device is a diode.

摘要翻译： 多级固态放大器通过在每个串联级之间的电路中的限幅装置来模拟与多级管放大器中的电网电流相关的失真。 在特定实施例中，每个级包括场效应晶体管（FET），并且限幅装置是二极管。

公开(公告)号：US5606144A

公开(公告)日：1997-02-25

申请号：US254681

申请日：1994-06-06

申请人： Diana Dabby

发明人： Diana Dabby

IPC分类号： G10H1/00 ,  G10H1/16 ,  G10H7/00 ,  A63H5/00 ,  G10H1/26 ,  G10H5/00

CPC分类号： G10H7/002 ,  G10H1/0025 ,  G10H1/16 ,  G10H2210/131

摘要： A procedure for generating different variations of a sequence of symbols, such as a musical piece, based on the properties of a chaotic system--most notably, sensitive dependence on the initial condition--is described and demonstrated. This method preferably uses a fourth order Runge-Kutta implementation of a chaotic system. Bach's Prelude in C Major from the Well-Tempered Clavier, Book I serves as the illustrative example since it is well-known and easily accessible. Variations of the Bach can be heard that are very close to the original while others diverge further. The system is designed for composers who, having created a through-composed work or section, would like to further develop their musical material. The composer is able to interact with the system to select various versions and change them, if desired. Yet the compositional character of the variations remains within the artist's domain of style, expression and inventiveness. The procedure, however, is more generically applicable to other dynamic symbol sequences than music, as well.

摘要翻译： 描述并演示了基于混沌系统的特性（尤其是对初始条件的敏感依赖性）产生诸如乐曲等符号序列的不同变化的过程。 该方法优选地使用混沌系统的第四阶Runge-Kutta实现。 Bach的“前奏曲”来自“炙手可热的克拉夫”，“书”作为说明性的例子，因为它是众所周知的，易于访问的。 可以听到巴赫的变化与原来非常接近，而另一些则更为分歧。 该系统专为作曲者而设计，他们创造了一个通过组合的作品或部分，希望进一步发展他们的音乐素材。 如果需要，作曲家能够与系统进行交互以选择各种版本并进行更改。 然而，变化的组成特征仍然在艺术家的风格，表达和创造性领域内。 然而，该程序更普遍地适用于音乐以外的其他动态符号序列。

公开(公告)号：US5578781A

公开(公告)日：1996-11-26

申请号：US316122

申请日：1994-09-30

申请人： Hideo Suzuki

发明人： Hideo Suzuki

IPC分类号： G10H7/00 ,  G10H1/12 ,  G10H1/16 ,  G10H7/08

CPC分类号： G10H1/16 ,  G10H1/125 ,  Y10S84/19

摘要： There are provided an analyzer which processes a supplied original sound waveform signal so as to generate one or more analyzed waveform signal components, a synthesizer which receives and processes at least one of the analyzed waveform signal components from the analyzer so as to synthesize a waveform signal on the basis of the processing, and a control section which controls the respective parameters used in the analyzer and synthesizer independently of each other. At least output signal of the synthesizer is taken out and output as a tone signal. In order to achieve diversified control of the tone color or characteristic of a tone to be generated, a tone signal may be obtained by taking out the respective output signals of the analyzer and synthesizer for synthesis.

摘要翻译： 提供了一种分析器，其处理所提供的原始声音波形信号以便产生一个或多个分析的波形信号分量;合成器，其从分析器接收并处理分析的波形信号分量中的至少一个，以便合成波形信号 以及控制部分，其彼此独立地控制在分析器和合成器中使用的各个参数。 至少输出合成器的输出信号作为音调信号输出。 为了实现音色的多样化控制或要生成的音调的特性，可以通过取出用于合成的分析器和合成器的各自的输出信号来获得音调信号。

公开(公告)号：US5524055A

公开(公告)日：1996-06-04

申请号：US182493

申请日：1994-01-18

申请人： Jack C. Sondermeyer

发明人： Jack C. Sondermeyer

IPC分类号： H03F3/28 ,  G10H1/16 ,  G10H3/18 ,  H03F1/32 ,  H03G7/06 ,  H03G11/02 ,  H03G3/08

CPC分类号： H03G7/06 ,  G10H1/16 ,  G10H3/187 ,  H03F1/327 ,  H03F1/3276 ,  H03F2200/549

摘要： A solid state amplifier for emulating the compression associated with an overbiased class-B push-pull tube amplifier at high input signal levels due to the flow of current into the grid of the output tubes resulting in a desirable output clipping characteristic with crossover distortion is disclosed. The invention includes at least one pair of class-B connected solid state devices, each having an input circuit and an output circuit. The output circuits are connected for mixing. A biasing element in the input circuit of each paired solid state device establishes a clipping level offset at the input circuit and at the output circuit of each device. A clipping element in the input circuit and the output circuit clips the offset at the input circuit and clips the offset at the output circuit of each respective solid state device. A charging element overbiases the offset in the input circuit whenever the input signal is greater than the input clipping element. The overbiasing causes crossover distortion for emulating the desirable compression associated with a tube amplifier.

摘要翻译： 公开了一种固态放大器，用于在高输入信号电平下模拟与偏置B类推挽管放大器相关联的压缩，这是由于流入输出管的电网的电流导致具有交叉失真的期望的输出限幅特性 。 本发明包括至少一对B类连接的固态器件，每个具有一个输入电路和一个输出电路。 输出电路连接用于混合。 每个成对固态器件的输入电路中的偏置元件在每个器件的输入电路和输出电路处建立限幅电平偏移。 输入电路中的限幅元件和输出电路夹住输入电路的偏移，并将每个固态器件输出电路的偏移钳位。 每当输入信号大于输入限幅元件时，充电元件会使输入电路的偏移量过偏。 超负荷引起交叉失真，以模拟与管放大器相关联的期望压缩。

公开(公告)号：US5508469A

公开(公告)日：1996-04-16

申请号：US122885

申请日：1993-09-16

申请人： Toshifumi Kunimoto ,  Masahiro Kakishita

发明人： Toshifumi Kunimoto ,  Masahiro Kakishita

IPC分类号： G10H7/08 ,  G10H1/02 ,  G10H1/16 ,  G10H5/00 ,  G10H7/00

CPC分类号： G10H1/16 ,  G10H5/007 ,  G10H2250/155 ,  G10H2250/465 ,  G10H2250/521

摘要： A musical tone synthesizing apparatus comprises a digital signal processor (i.e., DSP), a main memory and a sub memory. The main memory stores main instructions, while the sub memory stores sub instructions. In accordance with the main instructions and the sub instructions, the DSP performs several kinds of arithmetical operations in a time-division manner. Herein, the main instructions embody algorithms representing a sound source which contains a non-linear table. The contents of the non-linear table represents a non-linear characteristic of a musical instrument to be simulated. Values to be stored in the non-linear table are calculated in accordance with a predetermined mathematical computation utilizing a series expansion, a recurrence formula and the like. By rewriting the contents of the non-linear table, a non-linear characteristic to be applied to musical tone signals is altered in real time. Incidentally, the sub instructions are used to perform several kinds of operations such as an operation of rewriting the contents of the non-linear table and/or a low-pass filtering operation.

摘要翻译： 音乐合成装置包括数字信号处理器（即DSP），主存储器和子存储器。 主存储器存储主指令，而子存储器存储子指令。 根据主指令和子指令，DSP以时分方式执行几种算术运算。 这里，主要指令体现了表示包含非线性表的声源的算法。 非线性表的内容表示要被模拟的乐器的非线性特性。 根据使用串联扩展，递归公式等的预定数学计算，计算要存储在非线性表中的值。 通过重写非线性表的内容，实时地改变应用于乐音信号的非线性特性。 顺便提及，子指令用于执行诸如重写非线性表的内容的操作和/或低通滤波操作的几种操作。

公开(公告)号：US5451711A

公开(公告)日：1995-09-19

申请号：US140269

申请日：1993-10-21

申请人： Toshifumi Kunimoto

发明人： Toshifumi Kunimoto

IPC分类号： G09B15/00 ,  A63H5/00 ,  G10H1/08 ,  G10H1/12 ,  G10H1/16 ,  G10H5/00 ,  G10H7/00 ,  G10H7/08

CPC分类号： G10H1/16 ,  G10H5/007 ,  G10H2250/515 ,  G10H2250/535 ,  Y10S84/10

摘要： A musical tone waveform signal generating apparatus in which a waveform signal is circulated to generate a musical tone waveform signal. The apparatus includes an excitation portion for mixing an excitation control signal with the waveform signal and for non-linearly converting the mixed waveform signal and a signal transmission portion coupled with the excitation portion to feed back the converted waveform signal to the excitation portion with delay of a predetermined time for causing on the converted waveform signal a resonance frequency corresponding with a pitch of a musical tone to be generated. In the excitation portion, the non-linear conversion of the mixed waveform signal is effected by a plurality of non-linear tables to generate various kinds of musical tone waveform signals, and the converted waveform signal is controlled by a tone color control signal to simulate the musical tone as a natural musical tone created by performance of a musical instrument such as a wind instrument, a brass-wind instrument, a stringed instrument or the like.

摘要翻译： 一种乐音波形信号发生装置，其中波形信号被循环以产生乐音波形信号。 该装置包括用于将激励控制信号与波形信号混合并用于非线性转换混合波形信号的激励部分和与激励部分耦合的信号传输部分，以将延迟的转换波形信号反馈到激励部分 用于使转换的波形信号产生与产生音调的音调相对应的谐振频率的预定时间。 在激励部分中，混合波形信号的非线性转换由多个非线性表进行，以生成各种乐音波形信号，并且转换的波形信号由音色控制信号控制以模拟 作为通过演奏诸如乐器，铜管乐器，弦乐器等的乐器而产生的自然音调的音调。

公开(公告)号：US5354947A

公开(公告)日：1994-10-11

申请号：US878563

申请日：1992-05-05

申请人： Toshifumi Kunimoto ,  Yoichiro Ogai

发明人： Toshifumi Kunimoto ,  Yoichiro Ogai

IPC分类号： G10H1/16 ,  G10H5/00 ,  G10H7/00 ,  G10H1/06

CPC分类号： G10H5/007 ,  G10H1/16 ,  G10H2230/175 ,  G10H2230/185 ,  G10H2230/221 ,  G10H2230/241 ,  G10H2250/461 ,  G10H2250/515 ,  G10H2250/535

摘要： An apparatus for forming musical tone signals includes a playing operator and a tone signal synthesizing section for simulating a natural musical instrument, wherein a part of the tone signal synthesizing section, that is a part selectable for tone synthesization with respect to a plurality of tones is provided as connectable from external, and wherein storage means for storing procedure and parameters for synthesizing a musical tone signal is further provided as connectable from external.

摘要翻译： 一种用于形成乐音信号的装置包括演奏操作者和用于模拟自然乐器的乐音信号合成部分，其中作为音调合成相对于多个音调可选择的部分的音调信号合成部分的一部分是 被提供为可从外部连接，并且其中存储用于存储用于合成乐音信号的过程和参数的存储装置进一步提供为可从外部连接。

公开(公告)号：US5133014A

公开(公告)日：1992-07-21

申请号：US466865

申请日：1990-01-18

申请人： Eric K. Pritchard

发明人： Eric K. Pritchard

IPC分类号： G10H1/16 ,  G10H3/18 ,  H03F1/32 ,  H03G7/00

CPC分类号： H03G7/004 ,  G10H1/16 ,  G10H3/187 ,  H03F1/327 ,  H03F1/3276 ,  H03F2200/549

摘要： A distortion synthesizer, having a first distortion circuit, a tone control circuit for altering the tonality of the first distorted signal and a second distortion circuit for introducing harmonics into said tone controlled signal. At least one of the distortion circuits introduces harmonics without clipping. The second distortion circuit also for clips the resultant signal as a function of said resultant signal. The first distortion circuit limits and introduces even harmonics, preferrably predominantly second harmonics. The second distortion circuit introduces odd harmonics, preferrably by predominantly third harmonics, prior to clipping, and also compress the signal. The distortion circuits include a variable gain stage which increases with increased input using a plurality of switches which progressively add parallel resistors to progressively increase output current. A circuit simulating transformer saturation is also provided in the second distortion circuit.

摘要翻译： 具有第一失真电路的失真合成器，用于改变第一失真信号的音调的音调控制电路和用于将谐波引入所述音调控制信号的第二失真电路。 失真电路中的至少一个引入谐波而不削波。 第二失真电路还用于将所得到的信号作为所述合成信号的函数进行剪辑。 第一个失真电路限制并引入偶次谐波，最好主要是二次谐波。 第二失真电路在削波之前引入奇次谐波，最好主要由三次谐波引起，并且还压缩该信号。 失真电路包括可变增益级，其随着使用逐渐增加并联电阻器逐渐增加输出电流的多个开关的增加的输入而增加。 在第二失真电路中还提供了模拟变压器饱和的电路。

公开(公告)号：US5117729A

公开(公告)日：1992-06-02

申请号：US520231

申请日：1990-05-08

申请人： Toshifumi Kunimoto

发明人： Toshifumi Kunimoto

IPC分类号： G10H7/08 ,  G10H1/16 ,  G10H5/00 ,  G10H7/00

CPC分类号： G10H5/007 ,  G10H2250/461 ,  G10H2250/515 ,  G10H2250/535 ,  Y10S84/09 ,  Y10S84/10

摘要： A musical tone waveform signal generating apparatus is used to generate the waveform signal full of variety which simulates the sound waveform of wind instrument. This apparatus provides a loop including first and second signal lines through which the waveform signal is circulated. Both of first and second signal lines are connected to a conversion portion which receives the waveform signal from the second signal line and a musical tone control signal which is used to control a musical parameter of a musical tone to be generated. The conversion portion effects the predetermined non-linear conversion on the waveform signal in response to the musical tone control signal so that a converted waveform signal to be obtained from the conversion portion is to be outputted to the first signal line. A transmission portion to which both of first and second signal lines are connected transmits the waveform signal from the first signal line to the second signal line and delays the waveform signal by a delay time corresponding to a pitch of the musical tone to be generated. Further, a signal loop portion inserted between the conversion portion and transmission portion mixes the waveform signals on first and second signal lines by transmitting the waveform signal on one of first and second signal lines to the other of first and second signal lines.

公开(公告)号：US5032796A

公开(公告)日：1991-07-16

申请号：US452787

申请日：1989-12-19

申请人： Jerrold S. Tiers ,  Thomas E. Kieffer

发明人： Jerrold S. Tiers ,  Thomas E. Kieffer

IPC分类号： G10H1/16 ,  H03F1/32 ,  H03G11/00

CPC分类号： G10H1/16 ,  H03F1/327 ,  H03F1/3276 ,  H03G11/002 ,  H03F2200/549

摘要： A preamplifier for audio frequecy electrical signals generated by a musical instrument such a guitar having distortion characteristics simulating those of a vacuum tube amplifier. A solid state amplifier has an input for receiving electrical signals generated by the musical instrument and has an output for providing an output signal. Circuitry asymmetrically clips the output signal to provide as the output signal a nonlinear asymmetrically clipped signal having harmonic content which varies as a function of the amplitude and duration of the received electrical signals. The clipped signal has musically desirable harmonic overtones and produces different tonal responses simulating the characteristics of an overdriven vacuum tube amplifier.

摘要翻译： 用于由诸如吉他的乐器产生的音频频率电信号的前置放大器具有模拟真空管放大器的失真特性。 固体放大器具有用于接收由乐器产生的电信号的输入端，并具有用于提供输出信号的输出。 电路不对称地夹紧输出信号，以提供具有作为接收的电信号的幅度和持续时间的函数而变化的谐波含量的非线性非对称限幅信号作为输出信号。 剪辑信号具有音乐上需要的谐波泛音，并产生模拟过驱动真空管放大器特性的不同音调响应。