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公开(公告)号：US5116192A
公开(公告)日：1992-05-26
申请号：US525113
申请日：1990-05-17
申请人： Satoshi Usa
发明人： Satoshi Usa
摘要： There are provided a tone signal generation circuit capable of selectively generating either a normal tone signal corresponding to a selected tone color or a special tone signal corresponding to the same selected tone color but having a characteristic which is different from that of the normal tone signal, and a tone selection circuit selecting whether the normal tone signal is to be generated or the special tone signal is to be generated in this tone signal generation circuit. A tone signal having a characteristic of a tone generated by a misplay, for example, is used as the special tone signal. In case a tone is generated by depression of a key, the normal tone signal is selectively generated in most cases but the special tone signal may be selectively generated from time to time. By doing so, a tone of a misplay is occasionally generated thereby giving the impression of naturalness as if a natural musical instrument were being played. In case the generation of the special tone signal has been selected, the special tone signal may be temporarily generated and then tone generation may be switched to generation of the normal tone signal. In performing such switching, a crossfade control of the evelope level may be applied.
摘要翻译： 提供了一种音调信号发生电路，其能够选择性地产生对应于所选择的音色的正常音色信号或对应于相同所选音色但具有与正常音色信号不同的特性的特殊乐音信号， 以及选择在该音调信号生成电路中是否生成正常音调信号或者要生成特殊乐音信号的音调选择电路。 具有例如由误差产生的音调的特征的音调信号被用作特殊音调信号。 在通过按下按键产生音调的情况下，在大多数情况下选择性地生成普通音调信号，但是可以有选择地生成特殊乐音信号。 通过这样做，偶尔会产生错误的色调，从而给人以自然的印象，仿佛自然乐器被玩。 在选择了特殊音调信号的生成的情况下，可以临时生成特殊音调信号，然后将音调生成切换为正常音色信号的生成。 在执行这种切换时，可以应用信号级别的交叉淡入淡出控制。
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72.发明授权Control apparatus for electronic musical instrument for generating musical tone having tone pitch corresponding to input waveform signal 失效用于产生具有与输入波形信号相对应的音调音调的音调的电子乐器的控制装置
公开(公告)号：US5014589A
公开(公告)日：1991-05-14
申请号：US329418
申请日：1989-03-27
申请人： Katsuhiko Obata
发明人： Katsuhiko Obata
CPC分类号： G10H3/188 , G10H3/125 , G10H2210/066
摘要： A pitch is extracted from an input waveform signal, and a musical tone having a corresponding tone pitch is generated. In this case, a signal intensity at the leading edge of the input waveform signal is detected to determine a tone volume of the musical tone. A change degree of the signal intensity at the leading edge of the input waveform signal is detected to determine a timbre of the musical tone. As a result, the tone volume and the timbre of the output musical tone can be independently controlled in accordance with a music performance manner, and an improvement of a performance effect is expected.
摘要翻译： 从输入波形信号中提取音调，并产生具有对应音调的音调。 在这种情况下，检测输入波形信号的前沿处的信号强度，以确定乐音的音量。 检测输入波形信号的前沿处的信号强度的变化程度，以确定音调的音色。 结果，可以根据音乐表演方式独立地控制输出乐曲的音量和音色，并且期望提高性能效果。
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公开(公告)号：US4984495A
公开(公告)日：1991-01-15
申请号：US350107
申请日：1989-05-09
申请人： Junichi Fujimori
发明人： Junichi Fujimori
CPC分类号： G10H7/08 , G10H1/0091 , G10H1/04 , G10H2210/281 , G10H2250/145 , Y10S84/26
摘要： In a musical tone signal generating apparatus, first sampling data and second sampling data are multiplied together by a convolution operation, wherein first sampling data indicates instantaneous amplitude values of a musical tone waveform generated from a keyboard, for example. The second sampling data is obtained from an impulse response waveform signal indicative of a reverberation characteristic of room or an acoustic characteristic of amplifier or musical instrument such as a guitar or a piano. Or, the second sampling data can be obtained from a waveform signal indicative of animal sound, natural sound or the like. Then, the multiplication result of first and second sampling data is combined together into the musical tone waveform data, whereby a musical tone signal corresponding to this musical tone waveform data is generated. Thus, the musical tone is modulated with another sound such that the reverberation or acoustic characteristic will be simulated in the musical tone to be generated, whereby the variable musical effect can be applied to the musical tone.
摘要翻译： 在乐音信号发生装置中，第一采样数据和第二采样数据通过卷积运算相乘，其中第一采样数据表示例如从键盘产生的乐音波形的瞬时振幅值。 第二采样数据是从表示诸如吉他或钢琴的放大器或乐器的房间的混响特性或声学特性的脉冲响应波形信号获得的。 或者，可以从表示动物声音，自然声等的波形信号获得第二采样数据。 然后，将第一和第二采样数据的相乘结果组合在一起成为乐音波形数据，从而产生与该乐曲波形数据对应的乐音信号。 因此，用另一种声音调制乐音，使得将在要生成的乐曲中模拟混响或声学特性，从而可以对音调应用可变的音乐效果。
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74.发明授权Electronic musical instrument with a bender provided separately from performance keys 失效具有弯曲机的电子乐器与性能键分开提供
公开(公告)号：US4653374A
公开(公告)日：1987-03-31
申请号：US702469
申请日：1985-02-19
申请人： Akio Iba
发明人： Akio Iba
CPC分类号： G10H1/02
摘要： A digital pitch bend signal is supplied from an A/D converter to a first coefficient multiplier for every predetermined sampling period. An output of the first coefficient multiplier is added with an output of a second coefficient multiplier at an adder an output of which is delivered, as a digital pitch bend signal in the present cycle, from a buffer for the tone generation. The output of the adder is also fed back to an input of the second coefficient multiplier. Thus, from the buffer, a converted pitch bend signal having a value corrected during the respective sampling periods is produced.
摘要翻译： 每个预定采样周期，数字音调弯曲信号从A / D转换器提供给第一系数乘法器。 第一系数乘法器的输出在其加法器中加上第二系数乘法器的输出，作为当前周期中的数字音调弯曲信号从其缓冲器输出。 加法器的输出也反馈到第二系数乘法器的输入端。 因此，从缓冲器产生具有在各个采样周期期间被校正的值的转换的音调弯曲信号。
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公开(公告)号：US4644839A
公开(公告)日：1987-02-24
申请号：US852390
申请日：1986-04-15
申请人： Tetsuo Nishimoto
发明人： Tetsuo Nishimoto
CPC分类号： G10H7/08 , G10H2250/141
摘要： The generating function cos[Z(t).multidot.sin(.omega.'t)] of Bessel functions is utilized as a modulating function for a fundamental function sin(.omega.t) in synthesis of a musical tone including many harmonic (over tone) components, wherein Z(t) is used as a modulating index. The modulating frequency .omega.' in sin(.omega.'t) of the modulating function cos[Z(t).multidot.sin(.omega.'t)] is selected relative to the fundamental frequency so that w'=n.omega. wherein n is a half integer or an irrational number.
摘要翻译： 贝塞尔函数的生成函数cos [Z（t）xsin（ω，t）]被用作合成包含许多谐波（过调）成分的乐音的基函数sin（ω）的调制函数，其中 Z（t）用作调制指数。 相对于基频选择调制函数cos [Z（t）xsin（ω-t）]的sin（ω't）中的调制频率ω''，使得w'=nω，其中n是半整数或 一个不合理的数字。
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公开(公告)号：US4485717A
公开(公告)日：1984-12-04
申请号：US543316
申请日：1983-10-19
申请人： Hiroshi Kitagawa
发明人： Hiroshi Kitagawa
CPC分类号： G10H7/105
摘要： An electronic musical instrument which produces a musical sound by controlling harmonics coefficient and using computing means based on the discrete Fourier transfer. For a fundamental wave, a period function indicated by predetermined period data is generated and, for a harmonic wave, a period function of a period having a predetermined relation to the period of the fundamental wave is generated. By the period function thus obtained, a modulating waveshape memory is read out to obtain modulating data, which is multiplied by a harmonic coefficient.
摘要翻译： 一种电子乐器，其通过控制谐波系数产生音乐声音，并使用基于离散傅立叶转换的计算装置。 对于基波，产生由预定周期数据表示的周期函数，并且对于谐波，产生与基波周期具有预定关系的周期的周期函数。 通过这样获得的周期函数，读出调制波形存储器以获得乘以谐波系数的调制数据。
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公开(公告)号：US4354415A
公开(公告)日：1982-10-19
申请号：US218815
申请日：1980-12-22
申请人： Werner Sonnabend
发明人： Werner Sonnabend
摘要： An electronic musical instrument comprises a sound generator connected to a loudspeaker by way of several parallel channels including respective delay lines constituted by charge-transfer devices of the bucket-brigade type stepped by different high-frequency pulse generators. Each pulse generator comprises a voltage-controlled oscillator whose output frequency is varied by a composite periodic signal obtained from a respective stage of a chain of operational amplifiers each provided, except possibly for the first stage, with an RC network acting as a frequency-dependent phase shifter for a nonsinusoidal modulating signal consisting of at least two sub-audio-frequency components. The modulating signal may be synthesized from a plurality of stepped waveforms generated by the concurrent readout, at different sampling rates, of a set of amplitude values stored in a read-only memory.
摘要翻译： 一种电子乐器包括通过多个并行通道连接到扬声器的声音发生器，包括由不同的高频脉冲发生器分级的斗式旅行类型的电荷转移装置构成的各个延迟线。 每个脉冲发生器包括一个压控振荡器，其输出频率由从每个提供的运算放大器链的各个级（从第一级除外）获得的复合周期信号改变，RC网络作为频率依赖 用于由至少两个子音频分量组成的非正弦调制信号的移相器。 调制信号可以从以只读存储器中存储的一组幅度值的不同采样率的同时读出产生的多个阶梯波形合成。
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公开(公告)号：US4342247A
公开(公告)日：1982-08-03
申请号：US182121
申请日：1980-08-28
摘要： A detuning control circuit is provided for producing a pitch variation effect in an electronic musical instrument. The instrument includes at least one integrated circuit tone generator chip having at least one tone generator and a detuning circuit responsive to a predetermined detuning control signal for detuning the signals produced by the tone generator. The detuning control circuit comprises a detuning control signalling circuit for producing a predetermined detuning control signal and for selectively applying the predetermined detuning control signal to the detuning circuit of the tone generator chip so as to produce a predetermined pitch variation effect.
摘要翻译： 提供了一种用于在电子乐器中产生音调变化效果的失谐控制电路。 仪器包括至少一个集成电路音调发生器芯片，其具有响应于预定的失谐控制信号的至少一个音调发生器和失谐电路，用于使由音调发生器产生的信号失调。 失谐控制电路包括用于产生预定的失谐控制信号的失谐控制信令电路，并且用于选择性地将预定的失谐控制信号施加到音调发生器芯片的失谐电路，以产生预定的音调变化效果。
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公开(公告)号：US4329902A
公开(公告)日：1982-05-18
申请号：US115057
申请日：1980-01-24
申请人： David A. Love
发明人： David A. Love
摘要： A continuously varying electrical signal representing an original musical sound is divided at a selected mid-frequency of about 800 Hertz to provide upper and lower frequency signal bands which are then frequency-modulated with separate modulation signals that differ in frequency or amplitude or both, in order to produce a vibrato or tremulant effect and thereby enrich the harmonic content of the musical sound.In order to inject the vibrato or tremulant into each signal band, the modulation process utilizes a pulse sampling and delay circuit which minimizes clock pulse noise by selecting only the central part of each delayed pulse, and which also senses the original amplitude envelope of the unmodulated wave in order to augment the envelope that is recreated from the delayed pulses after they are recovered.The resulting modulated signals are recombined, producing a cross-modulation which adds further harmonic components, and the composite signal is again divided at a frequency of about 200 Hertz into high and low frequency output signals which are supplied to respective high and low frequency stationary loudspeakers.
摘要翻译： 表示原始音乐声音的连续变化的电信号在大约800赫兹的选定的中频频率下分频，以提供上和下频率信号频带，然后使用频率或幅度不同的两个调制信号进行频率调制， 以产生颤音或颤音效果，从而丰富音乐声音的谐波含量。 为了将颤音或颤音注入每个信号频带，调制过程利用脉冲采样和延迟电路，其通过仅选择每个延迟脉冲的中心部分来最小化时钟脉冲噪声，并且还检测未调制的 以便在它们被恢复之后从延迟脉冲重建的包络增加。 所产生的调制信号被重新组合，产生交叉调制，其增加了更多的谐波分量，并且复合信号再次以大约200赫兹的频率被分频到高频和低频输出信号中，高频和低频输出信号被提供给相应的高频和低频固定扬声器 。
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80.发明授权Tone generator for electronic musical instrument with digital glissando, portamento and vibrato 失效用于电子乐器的音调发生器，具有数字格兰仕，音箱和颤音
公开(公告)号：US4198892A
公开(公告)日：1980-04-22
申请号：US961222
申请日：1978-11-16
申请人： Glenn M. Gross
发明人： Glenn M. Gross
CPC分类号： G10H5/06 , G10H1/043 , G10H1/28 , G10H2210/211 , G10H2210/221
摘要： A tone generator for use with an electronic musical instrument includes a binary counter operated by a binary comparator and a source of clock signals for incrementally advancing or decreasing the state of the counter from a first selected state to a second selected state. The states of the counter control a programmable divider which develops corresponding output tone signals. The counter produces multiple state changes between the selected states so that each individual state change results in a frequency change which is inaudible. The overall effect is to thereby synthesize a tone signal creating the illusion of a continuous pitch change between the pitches corresponding to the selected counter states. The source of clock signals includes a rate multiplier programmed according to the states of the counter to compensate system operation for insuring that similar musical effects defined by corresponding musical intervals are produced in equal time intervals. In a vibrato mode, a second rate multiplier is provided to insure that, for a given frequency output tone signal, different vibrato depths result in vibrato cycles of equal time intervals.
摘要翻译： 与电子乐器一起使用的乐音发生器包括由二进制比较器操作的二进制计数器和用于将计数器的状态从第一选择状态递增或减小到第二选择状态的时钟信号源。 计数器的状态控制可编程分频器，其产生相应的输出音调信号。 计数器在所选择的状态之间产生多个状态变化，使得每个单独的状态改变导致听不到的频率变化。 总体效果是由此合成音调信号，从而产生与所选择的计数器状态对应的间距之间的连续音调变化的错觉。 时钟信号源包括根据计数器的状态编程的速率倍增器，以补偿系统操作，以确保以相等的时间间隔产生由相应音程定义的类似音乐效果。 在颤音模式中，提供第二速率倍增器以确保对于给定的频率输出音调信号，不同的颤音深度导致等时间间隔的颤音循环。
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