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公开(公告)号：US4464965A
公开(公告)日：1984-08-14
申请号：US441014
申请日：1982-11-12
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H7/105 , G10H2250/135
摘要： A keyboard operated electronic musical instrument having a number of tone generators which are assigned to actuated keyswitches. A tone selection means is implemented comprising an autocorrelation function generator. A set of harmonic coefficients is created by means of a discrete Fourier-cosine transformation of the autocorrelation function. A computing means transforms the harmonic coefficients to musical tones. The generated musical tones are varied in tone color by selecting the shape of the autocorrelation function. A means is provided to vary the autocorrelation function in a time variant manner in response to a control signal.
摘要翻译： 具有多个音调发生器的键盘操作的电子乐器被分配给致动的钥匙开关。 执行包括自相关函数发生器的音调选择装置。 通过自相关函数的离散傅立叶余弦变换产生一组谐波系数。 计算装置将谐波系数转换为乐音。 所生成的乐音通过选择自相关函数的形状而以音色变化。 提供了一种用于响应于控制信号以时变方式改变自相关函数的装置。
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公开(公告)号：US4458572A
公开(公告)日：1984-07-10
申请号：US462247
申请日：1983-01-31
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H7/105 , G10H1/383 , G10H2210/596 , G10H2210/601 , G10H2210/621
摘要： An electronic musical instrument having two keyboards is disclosed in which chords detected on the accompaniment keyboard are used to vary the selected tone color of the tones played on the solo keyboard. The solo tones are synthesized by means of a Fourier transform using a set of harmonic coefficients. Selected harmonic coefficients are scaled in magnitude in response to the chord type detected from the notes played on the accompaniment keyboard.
摘要翻译： 公开了一种具有两个键盘的电子乐器，其中在伴奏键盘上检测到的和弦用于改变在独奏键盘上播放的音调的所选音色。 通过使用一组谐波系数的傅立叶变换来合成独奏音调。 响应于从伴奏键盘上播放的音符检测到的和弦类型，所选择的谐波系数的幅度被缩放。
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公开(公告)号：US4421002A
公开(公告)日：1983-12-20
申请号：US344093
申请日：1982-01-29
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H7/105 , G10H1/36 , G10H2250/135 , Y10S84/22
摘要： In a musical instrument having a solo and accompaniment keyboard apparatus is provided whereby an accompaniment tone color is generated which adaptively complements selected solo tones. The first zero crossing spacing of the autocorrelation function of the solo tones is computed and then used to generate the complementary accompaniment tones.
摘要翻译： 在具有独奏和伴奏键盘装置的乐器中，提供伴奏音色，其自适应地补充所选择的独奏音。 计算独奏音调的自相关函数的第一个零交叉间隔，然后用于产生互补伴奏音调。
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54.发明授权
公开(公告)号：US4398442A
公开(公告)日：1983-08-16
申请号：US352973
申请日：1982-02-26
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H1/36
摘要： In a musical instrument having a solo and accompaniment keyboard apparatus is provided whereby an accompaniment tone color is selected which adaptively complements selected solo tones. The first zero crossing spacing of the autocorrelation function for the solo tone is used to implement a tone selection logic. An effective zero crossing is computed for combinations of available accompaniment tones. An accompaniment tone combination is selected whose effective zero crossing has a maximum value that does not exceed a complemented value of the zero crossing for the selected solo tone.
摘要翻译： 提供具有独奏和伴奏键盘装置的乐器，由此选择伴奏音色，其自适应地补充所选择的独奏音。 用于独奏音调的自相关函数的第一个零交叉间隔用于实现音调选择逻辑。 为可用伴奏音调的组合计算有效的零交叉。 选择伴奏音组合，其有效零交叉具有不超过所选择的独奏音调的过零点的互补值的最大值。
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公开(公告)号：US4385542A
公开(公告)日：1983-05-31
申请号：US304535
申请日：1981-09-22
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. 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 points defining the waveform of a musical tone are computed and transferred to a digital-to-analog converter to be converted into musical waveshapes, apparatus is provided for generating tones which are imitative of acoustic signals created by singing or humming. A new tone is obtained by singing into a microphone and actuating a switch. The output waveshapes are generated by implementing a Fourier transform algorithm using a set of harmonic coefficients determined by sampling and processing the signal produced by the microphone.
摘要翻译： 在具有一个或多个音调发生器的乐器中，其中计算与限定音调的波形的点的幅度相对应的多个数据字并将其传送到数模转换器以转换成音乐波形，装置 被提供用于产生模仿由歌唱或嗡嗡声产生的声信号的音调。 通过唱入麦克风和启动开关获得新的音调。 通过使用通过采样和处理由麦克风产生的信号确定的一组谐波系数来实现傅里叶变换算法来产生输出波形。
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公开(公告)号：US4379420A
公开(公告)日：1983-04-12
申请号：US313026
申请日：1981-10-19
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H1/38 , G10H1/40 , G10H2210/596 , G10H2210/601 , G10H2210/621 , G10H2210/626 , Y10S84/12 , Y10S84/22
摘要： A keyboard operated electronic musical instrument is disclosed for imitating the strummed and solo modes of playing plucked fretted musical instruments. The actuated keys do not directly control the set of tone generators, but are used to automatically select one of a library of chord types which is closest to the actuated keys. A root note is chosen for each selected chord type. The selected chord type is transposed to an open chord spanning the several octaves associated with a guitar-type instrument. The selected tone generators assigned to the transposed open chord are strum keyed in sequence at a rate adaptive to the speed in which successive chords are entered on the keyboard. Provision is made for up-down strumming and to automatically enter a solo tone mode when a sequence of single notes are entered on the keyboard.
摘要翻译： 公开了一种键盘操作的电子乐器，用于模仿弹奏被抚摸的乐器的弹奏和独奏模式。 致动键不直接控制音调发生器组，而是用于自动选择最接近致动键的和弦类型之一。 为每个选定的和弦类型选择根音。 所选择的和弦类型被转置到跨越与吉他型乐器相关联的几个八度音阶的开启和弦。 分配给转置的开放和弦的所选音调发生器按照适应于在键盘上输入连续和弦的速度的速率顺序键入。 提供上下弹奏，并在键盘上输入单个音符序列时自动输入独奏音模式。
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公开(公告)号：US4353279A
公开(公告)日：1982-10-12
申请号：US230242
申请日：1981-02-02
申请人： Ralph Deutsch
发明人： Ralph Deutsch
摘要： An ensemble effect is produced in a digital tone generator by providing a master data set of words having values corresponding to the relative amplitudes of equally spaced points along one cycle of a waveform of a musical tone in which the fundamental frequency is deleted. These values are read sequentially and repetitively from a memory to produce a first analog tone. A second analog tone is produced by multiplying a data set corresponding to the fundamental frequency by a low frequency sinusoid. The first and second analog tones are summed to yield a musical tone having an ensemble effect.
摘要翻译： 在数字乐音发生器中通过提供具有对应于基本频率被删除的音调的波形的波形的一个周期上等间隔的点的相对幅度的值的主数据集来产生整体效果。 从存储器顺序地和重复地读取这些值以产生第一模拟音调。 通过将与基频相对应的数据集乘以低频正弦波来产生第二模拟音调。 将第一和第二模拟音调相加以产生具有整体效果的乐音。
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公开(公告)号：US4351218A
公开(公告)日：1982-09-28
申请号：US250474
申请日：1981-04-02
申请人： Ralph Deutsch
发明人： Ralph Deutsch
CPC分类号： G10H7/12 , G10H2250/235 , G10H2250/501 , Y10S84/10
摘要： A sliding formant effect is produced in a tone generator of the type in which wave shape data points are sequentially and repetitively read out of a memory at a rate corresponding to the fundamental pitch of a musical tone. The formant effect is obtained by forming the sums or differences between consecutive data points for one waveshape period and storing the new data in memory in response to a formant control signal. Provision is made for advancing or retarding the effective formant cut-off frequency under command of the formant control signal.
摘要翻译： 在以与音乐的基音间相对应的速率从存储器顺序地重复地读出波形数据点的类型的乐音发生器中产生滑动共振峰效应。 通过形成一个波形周期的连续数据点之间的和或差以获得共振峰效应，并且响应于共振峰控制信号将新数据存储在存储器中。 提供了在共振峰控制信号的指令下推进或延迟有效共振峰截止频率。
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公开(公告)号：US4341141A
公开(公告)日：1982-07-27
申请号：US167305
申请日：1980-07-10
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
CPC分类号： G10H1/02 , G10H2210/225 , Y10S84/07
摘要： A keyboard operated musical instrument with portamento effect in which the portamento keyboard consists of a linear array of keyswitches. The keyswitches are arranged in groups corresponding to each musical note and spaced so that a number of contiguous switches are actuated by each finger in contact with the portamento keyboard. Apparatus is provided for generating a frequency number corresponding to the closest switch actuated by the center of each finger thereby providing polyphonic portamento effects as the finger positions are slid or changed along the portamento keyboard. The frequency numbers are utilized to control the pitches of tones generated by the musical instrument.
摘要翻译： 键盘操作的乐器，具有音乐效果，其中音轨键盘由一系列按键开关组成。 钥匙开关以与每个音符相对应的组排列并且间隔开，使得多个连续的开关由与手持式键盘接触的每个手指致动。 提供了用于产生对应于由每个手指的中心致动的最接近的开关的频数的设备，从而当手指位置沿着滑板键盘滑动或改变时提供复音口音效果。 频率号用于控制由乐器产生的音调的间距。
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公开(公告)号：US4282786A
公开(公告)日：1981-08-11
申请号：US75432
申请日：1979-09-14
申请人： Ralph Deutsch , Leslie J. Deutsch
发明人： Ralph Deutsch , Leslie J. Deutsch
CPC分类号： G10H1/383 , G10H2210/596 , G10H2210/601 , G10H2210/621 , Y10S84/02 , Y10S84/22
摘要： In an electrical keyboard musical instrument apparatus is provided for automatically selecting one of a library of chord types which is closest to a chord played on the instrument. The closest decision is made by processing the actuated keyswitch 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 selected chord type.
摘要翻译： 在电子键盘乐器装置中，用于自动选择最靠近乐器上演奏的和弦的和弦类型中的一种。 最接近的决定是通过一组匹配的滤波器来处理致动的钥匙开关数据，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。 为每个选定的和弦类型选择根音。
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