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公开(公告)号：US4722259A
公开(公告)日：1988-02-02
申请号：US846384
申请日：1986-03-31
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
摘要： A keyboard operated musical instrument is disclosed in which the number of tone generators can be less than the number of keyswitches in a keyboard array of keyswitches. A binary-tree search is programmed to search subsets of the keyswitches to find keyswitches that have been actuated. The subsets are selected in an adaptive fashion which minimizes the search time required to detect and identify all the actuated keyswitches. A modular assignment subsystem is described whereby tone generators are assigned to actuated keyswitches according to a predetermined priority logic.
摘要翻译： 公开了一种键盘操作的乐器，其中音调发生器的数量可以小于按键开关的键盘阵列中的按键开关的数量。 二叉树搜索被编程为搜索按键开关的子集以找到已被致动的按键开关。 以适应性方式选择子集，其最小化检测和识别所有致动的钥匙开关所需的搜索时间。 描述了模块分配子系统，其中音调发生器被分配给根据预定优先级逻辑的致动按键开关。
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2.发明授权Integral and a differential waveshape generator for an electronic musical instrument 失效用于电子乐器的积分和差分波形发生器
公开(公告)号：US4549459A
公开(公告)日：1985-10-29
申请号：US597316
申请日：1984-04-06
申请人： Ralph Deutsch
发明人： Ralph Deutsch
摘要： A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. Musical tones are produced by computing a master data set which defines the data points for a period of the musical waveshape. The computation uses a preselected set of harmonic coefficients. Provision is made for altering the harmonic coefficients to produce waveshapes which are derivatives or integrals of the basic waveshape. The order of differentiation or integration can be varied to produce time variant tone effects.
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。 通过计算在音乐波形的一段时间内定义数据点的主数据集来产生乐音。 该计算使用预选的一组谐波系数。 规定了改变谐波系数以产生作为基本波形的导数或积分的波形。 分化或整合的顺序可以变化，以产生时变色调效果。
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3.发明授权Generation of anharmonic overtones in a musical instrument by additive synthesis 失效通过添加剂合成在乐器中产生不和谐的泛音
公开(公告)号：US4513651A
公开(公告)日：1985-04-30
申请号：US517157
申请日：1983-07-25
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
摘要： A keyboard operated electronic musical instrument is disclosed which has a number of tone generators which are assigned to actuated keyswitches. Musical tones having an anharmonic overtones structure are produced by generating a number of component waveshapes each having a different fundamental frequency. These component waveshapes are summed to produce a single tone. Each component waveshape has a spectral content of a preselected subset of non-zero harmonic coefficients. The various components have mutually exclusive selection for the non-zero harmonic coefficients.
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。 通过产生各自具有不同基频的多个分量波形来产生具有非共振泛音结构的乐音。 将这些分量波形相加以产生单个音调。 每个分量波形具有非零谐波系数的预选子集的频谱含量。 各种组件具有非零谐波系数的互斥选择。
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4.发明授权Combined tone generation on a single keyboard for an electronic musical instrument 失效用于电子乐器的单键盘上的组合音调生成
公开(公告)号：US4495847A
公开(公告)日：1985-01-29
申请号：US506468
申请日：1983-06-21
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
摘要： A keyboard operated electronic musical instrument is disclosed in which an independent monophonic tone synthesizer is operated from the same keyboard that controls the generation of tone from a polyphonic tone generation system. The highest frequency note is assigned to the monophonic tone synthesizer and all other actuated keyboard switches are assigned to the polyphonic tone generation system. The detection of the highest note is initiated each time that a keyswitch changes from an unactuated to an actuated state. An alternative arrangement is to assign the lowest frequency note to the monophonic tone synthesizer.
摘要翻译： 公开了一种键盘操作的电子乐器，其中独立的单声道音调合成器从控制来自和弦音产生系统的音调的产生的相同的键盘操作。 最高频率音符被分配给单声道音调合成器，并且所有其它启动的键盘开关被分配给和弦音产生系统。 每当钥匙开关从未致动状态转变为致动状态时，便开始检测最高音符。 另一种安排是将最低频率音符分配给单声道音调合成器。
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公开(公告)号：US4450746A
公开(公告)日：1984-05-29
申请号：US411159
申请日：1982-08-24
申请人： Ralph Deutsch
发明人： Ralph Deutsch
摘要： A keyboard operated electronic musical instrument in which a number of tone generators are assigned to actuated keyswitches in which a flute chorus of similar tones at preselected pitch footages are generated by implementing a discrete Fourier transform employing a selected sequence of harmonic coefficients. Two stored harmonic coefficients suffice to generate a tibia type flute chorus. A harmonic sequence select logic in cooperation with signals derived from actuated tone switches provide the selected sequences of harmonic coefficients.
摘要翻译： 一种键盘操作的电子乐器，其中许多音调发生器被分配给致动的钥匙开关，其中通过实施采用选定的谐波系数序列的离散傅立叶变换来生成具有预选间距的类似音调的长笛合唱。 两个存储的谐波系数足以产生胫骨型长笛合唱。 谐波序列选择逻辑与从致动音开关得到的信号协同提供所选择的谐波系数序列。
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公开(公告)号：US4446769A
公开(公告)日：1984-05-08
申请号：US398044
申请日：1982-07-14
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H7/105
摘要： A keyboard operated electronic musical instrument in which a number of tone generators are assigned to actuated keyswitches in which provisios are incorporated for simultaneously generating a combination of tones. Tones in the first family are generated with a maximum of Q harmonics by implementing a discrete Fourier transform employing stored sets of harmonic coefficients. Tones in the second family are obtained by operations on a frequency number and have a maximum of 2 Q harmonics. The second family of tones are generated in a manner that inherently provides ample noise reduction.
摘要翻译： 一种键盘操作的电子乐器，其中多个音调发生器被分配到其中并入的条件的致动按键开关，用于同时产生音调的组合。 通过使用存储的谐波系数集实现离散傅里叶变换，产生第一族中的音调，具有最大的Q谐波。 第二族中的音调是通过对频数进行操作获得的，并且具有最大2个Q谐波。 第二族的音调是以固有地提供充足的降噪的方式产生的。
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公开(公告)号：US4411185A
公开(公告)日：1983-10-25
申请号：US364955
申请日：1982-04-02
申请人： Ralph Deutsch
发明人： Ralph Deutsch
摘要： A touch responsive keyboard musical instrument is provided with an array of keyboard switches arranged in octave groups and connected in parallel octaves. A motion transducer is attached to each keyswitch so that a transducer signal is generated corresponding to the motion used to actuate the keyswitches. The keyswitches are sequentially scanned until an actuated keyswitch is detected. At this time the scanning is interrupted until the corresponding transducer signal has reached its peak value. The peak value is used to vary a tonal effect such as a frequency modulation or an ADSR envelope modulation of a tone generator assigned to the actuated keyswitch. The keyswitch scanning is resumed when the peak value of the transducer signal has been measured.
摘要翻译： 触摸式键盘乐器设置有以八度组布置并以八度并行连接的键盘开关阵列。 运动传感器附接到每个钥匙开关，使得相应于用于致动钥匙开关的运动产生换能器信号。 依次扫描钥匙开关，直到检测到致动的钥匙开关。 此时扫描中断，直到相应的换能器信号达到其峰值。 峰值用于改变音调效应，例如分配给致动钥匙开关的音调发生器的频率调制或ADSR包络调制。 当测量出传感器信号的峰值时，钥匙开关扫描被恢复。
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公开(公告)号：US4387622A
公开(公告)日：1983-06-14
申请号：US284744
申请日：1981-07-20
申请人： Ralph Deutsch
发明人： Ralph Deutsch
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 a musical 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 producing tones having independent time-varying harmonic components. A recursive algorithm is implemented which approximates prespecified harmonic-time curves by piecewise segments of exponential functions. Only a small number of stored curve parameters are required to generate the harmonic-time scale factor for a set of harmonic coefficients.
摘要翻译： 在具有一个或多个乐音发生器的乐器中，其中对应于定义音乐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 - 模拟转换器以与产生的音调的音调成比例的速率在重复周期中提供装置，用于产生具有独立时变谐波分量的音调。 实现了一种递归算法，其通过指数函数的分段近似预定的谐波时间曲线。 仅需要少量存储的曲线参数来产生一组谐波系数的谐波时间比例因子。
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公开(公告)号：US4313361A
公开(公告)日：1982-02-02
申请号：US135054
申请日：1980-03-28
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H1/00 , G10H2210/066 , Y10S84/18
摘要： In an electronic musical instrument apparatus is provided for generating musical sounds having a fundamental frequency which tracks the fundamental frequency of a time varying external control signal. A matched filter is used to generate frequency control signals which are determined by a closeness criterion between the external control signal and an internally generated test signal. Provision is made for offsetting the generated musical sounds for a preselected musical interval from the fundamental frequency of the external control signal.
摘要翻译： 在电子乐器装置中，用于产生具有跟踪时变外部控制信号的基频的基频的音乐声音。 匹配滤波器用于产生由外部控制信号和内部产生的测试信号之间的接近度标准确定的频率控制信号。 提供用于从外部控制信号的基频将预定的音频间隔的产生的音乐声音偏移。
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公开(公告)号：US4295402A
公开(公告)日：1981-10-20
申请号：US88978
申请日：1979-10-29
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
CPC分类号： G10H3/18 , G10H1/38 , G10H1/40 , G10H2210/596 , G10H2210/601 , G10H2210/621 , Y10S84/22 , Y10S84/30
摘要： In an electrical tone generator apparatus is provided for automatically selecting one of a library of chord types which is closest to a chord fingered on a fretted string instrument. The closest decision is made by processing the fingered fret input data by a set of matched filters each of which corresponds to a member of the library of chord types. The chord type decision is made to correspond to the matched filter producing the maximum output response. The selection between chord types yielding equal responses is resolved by priority logic based upon the frequency of chord usage. A root note is chosen for each chord type. Note keying data is generated from the selected chord types which is transposed to the correct musical pitches in response to the chosen root note. The note keying data is grated by an automatic rhythm generator and the output is used to actuate electronic musical tone generators.
摘要翻译： 在提供一种电音乐发生器装置中，用于自动选择最接近于弦乐器上的弦的弦类型的一个。 最接近的决定是通过一组匹配的滤波器来处理手指输入数据，每个匹配滤波器对应于和弦类型的库的成员。 和弦类型决定对应于产生最大输出响应的匹配滤波器。 通过基于和弦频率的优先级逻辑来解决产生相等响应的和弦类型之间的选择。 为每个和弦类型选择根音。 从所选择的和弦类型生成注释键控数据，该弦乐类型根据所选择的根音符被转置到正确的乐曲。 音符键控数据由自动节奏发生器磨碎，输出用于启动电子音乐发生器。
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