Efficient synthesis of musical tones having nonlinear excitations
    2.
    发明授权
    Efficient synthesis of musical tones having nonlinear excitations 失效
    具有非线性激励的乐音的高效合成

    公开(公告)号:US5777255A

    公开(公告)日:1998-07-07

    申请号:US850652

    申请日:1997-05-02

    IPC分类号: G10H1/12 G10H5/00

    摘要: An efficient digital waveguide synthesizer is disclosed for simulating the tones produced by a non-linearly excited vibrational element coupled to a resonator, such as in a piano. In a preferred embodiment, the synthesizer creates an excitation pulse from a table containing the impulse response of a piano soundboard and enclosure. Alternatively, this excitation pulse can be synthesized by filtering white noise. The excitation pulse is fed into a filter that simulates the collision of the piano hammer and string. Because the hammer-string interaction is nonlinear, the characteristics of this filter vary with the amplitude of the tone produced. The filtered excitation pulse is then fed into a filtered delay line loop which models the vibration of a piano string. Because the excitation pulse already contains the effects of the resonator, the tone produced by the delay line loop does not require additional filtering in order to model the resonator.

    摘要翻译: 公开了一种有效的数字波导合成器,用于模拟由耦合到诸如钢琴的谐振器的非线性激励的振动元件产生的音调。 在优选实施例中,合成器从包含钢琴音板和外壳的脉冲响应的表创建激励脉冲。 或者,该激发脉冲可以通过滤除白噪声来合成。 激励脉冲被馈送到模拟钢琴锤和弦的碰撞的过滤器中。 因为琴弦相互作用是非线性的,所以该滤镜的特性随着音调的产生幅度而变化。 滤波的激励脉冲然后被馈送到对钢琴弦的振动进行建模的经滤波的延迟线回路中。 由于激励脉冲已经包含谐振器的影响,所以由延迟线环产生的音调不需要额外的滤波以便对谐振器建模。

    Digital signal processing using closed waveguide networks
    3.
    发明授权
    Digital signal processing using closed waveguide networks 失效
    使用封闭波导网络的数字信号处理

    公开(公告)号:US5448010A

    公开(公告)日:1995-09-05

    申请号:US35267

    申请日:1993-03-22

    摘要: A tone generation system includes one or more digital waveguide networks coupled to one or more junctions, one of which receives a control signal for controlling tone generation. The control signal initiates and interacts with a wave signal propagating through the waveguide networks to form a tone signal. A non-linear junction may be employed which receives a signal from a waveguide, converts it in accordance with a non-linear function based upon the value of the control signal and provides it back to the waveguide. A tone signal whose pitch is determined by the wave transmission characteristics of the waveguide network is thereby produced.

    摘要翻译: 音调生成系统包括耦合到一个或多个结点的一个或多个数字波导网络,其中一个接收控制信号以控制音调生成。 控制信号启动并与通过波导网络传播的波信号相互作用以形成音调信号。 可以采用接收来自波导的信号的非线性结,其根据基于控制信号的值的非线性函数将其转换并将其提供回波导。 由此产生其音调由波导网络的波传播特性决定的音调信号。

    Musical-tone control apparatus with means for inputting a bowing
velocity signal
    4.
    发明授权
    Musical-tone control apparatus with means for inputting a bowing velocity signal 失效
    具有用于输入弯曲速度信号的装置的乐音控制装置

    公开(公告)号:US5448008A

    公开(公告)日:1995-09-05

    申请号:US349380

    申请日:1994-12-05

    摘要: In order to simulate sounds of an acoustic musical instrument such as a bowed stringed instrument, an electronic musical instrument employs a musical tone control apparatus which at least contains an operating device and a detecting circuit. Herein, when operating the operating device which can be operated in a two-dimensional area, the detecting circuit detects operation information corresponding to an operating position or an operating displacement of the operating device. Then, velocity information is generated based on the operation information. Thereafter, a musical tone is generated in response to a musical characteristic corresponding to the velocity information under a condition where the operating device is now operating. Preferably, the operating device is configured by a digitizer on which surface an electronic pen is moved two-dimensionally by the performer. Thus, it is possible to impart the varied performance expression to the musical tone to be generated.

    摘要翻译: 为了模拟诸如弓弦乐器的声乐器的声音,电子乐器采用至少包含操作装置和检测电路的乐音控制装置。 这里,当操作能够在二维区域中操作的操作装置时,检测电路检测对应于操作装置的操作位置或操作位移的操作信息。 然后,基于操作信息生成速度信息。 此后,响应于在操作装置正在操作的状态下对应于速度信息的音乐特征产生乐音。 优选地,操作装置由数字化仪构成,在该表面上,电子笔由演奏者二维地移动。 因此,可以对要产生的乐音赋予变化的演奏表现。

    Musical tone synthesizing apparatus using comb filter
    5.
    发明授权
    Musical tone synthesizing apparatus using comb filter 失效
    使用梳状滤波器的音乐合成装置

    公开(公告)号:US5442130A

    公开(公告)日:1995-08-15

    申请号:US25282

    申请日:1993-03-02

    摘要: The musical tone synthesizing apparatus utilizes a loop circuit receptive of an input signal for looping the same with a given delay time to produce an output signal representative of a musical tone. The loop circuit includes a delay element for delaying the input signal and a feedback path for feeding back the delayed input signal to the delay element. A control unit is provided for controlling the delay element according to a designated pitch of a musical tone so as to set the delay time of the loop circuit to thereby determine the pitch of the musical tone. A generator generates the input signal containing various frequency components. A high-pass filter is connected precedingly to the loop circuit for selectively attenuating relatively lower frequency components of the input signal, which have periods longer than the set delay time of the loop circuit.

    摘要翻译: 乐音合成装置利用接收输入信号的回路电路,以给定的延迟时间对其进行循环,以产生表示乐音的输出信号。 环路电路包括用于延迟输入信号的延迟元件和用于将延迟的输入信号反馈到延迟元件的反馈路径。 提供控制单元,用于根据音调的指定音调来控制延迟元件,以便设置环路电路的延迟时间,从而确定音调的音高。 发生器产生包含各种频率分量的输入信号。 高通滤波器之前连接到环路电路,用于选择性地衰减输入信号的相对较低的频率分量,其具有比环路电路的设定延迟时间更长的周期。

    Wind type tone synthesizer adapted for simulating a conical resonance
tube
    6.
    发明授权
    Wind type tone synthesizer adapted for simulating a conical resonance tube 失效
    风型音调合成器适用于模拟锥形谐振管

    公开(公告)号:US5438156A

    公开(公告)日:1995-08-01

    申请号:US878778

    申请日:1992-05-05

    IPC分类号: G10H5/00 G10H5/02

    摘要: An acoustic wind instrument having a conical tube is simulated by two cylindrical tubes communicated to each other at each one end. A parallel connection of electrical signal transmission lines, each simulating a cylindrical tube constitute a synthesizer synthesizing the sound of the conical acoustic wind instrument. Each signal transmission line includes a shift register for giving a delay to the input signal, a multiplier for simulating sound reflection, and a filter for affording a tone color. An exciting signal is injected at the interconnection of the parallel connection through a junction circuit.

    摘要翻译: 具有锥形管的声学管乐器由在每一端彼此连通的两个圆柱形管模拟。 每个模拟圆柱管的电信号传输线的并联连接构成合成锥形声管的声音的合成器。 每个信号传输线包括用于给输入信号提供延迟的移位寄存器,用于模拟声音反射的乘法器和用于提供音色的滤波器。 激励信号通过结电路在并联连接的互连处被注入。

    Musical tone synthesizing apparatus with sound hole simulation
    7.
    发明授权
    Musical tone synthesizing apparatus with sound hole simulation 失效
    具有声孔模拟的音乐合成装置

    公开(公告)号:US5371317A

    公开(公告)日:1994-12-06

    申请号:US511060

    申请日:1990-04-19

    申请人: Hideyuki Masuda

    发明人: Hideyuki Masuda

    IPC分类号: G10H5/00

    摘要: The musical tone synthesizing apparatus synthesizes a musical tone signal in response to the wind instrument and the like to thereby simulate a resonance tube providing with several sound holes each opened or closed by each finger of a performer. Herein, the input signal is delayed by the predetermined delay time, and then the predetermined operational process corresponding to the signal-scattering operation is carried out on the delayed signal. The coefficient used in this operational process is varied in response to the open/close state of each sound hole. Thus, the operation result can simulate the musical tone to be sounded from the resonance tube of the wind instrument and the like.

    摘要翻译: 乐音合成装置响应于乐器等合成乐音信号,从而模拟提供由演奏者的每个手指打开或关闭的几个声孔的共鸣管。 这里,输入信号被延迟预定的延迟时间,然后对延迟信号执行对应于信号散射操作的预定操作处理。 在该操作过程中使用的系数响应于每个声孔的打开/关闭状态而变化。 因此,操作结果可以模拟从管乐器的共鸣管等发出的乐音。

    Musical tone signal synthesizing apparatus employing selective
excitation of closed loop
    8.
    发明授权
    Musical tone signal synthesizing apparatus employing selective excitation of closed loop 失效
    采用闭环选择性激发的乐音信号合成装置

    公开(公告)号:US5286916A

    公开(公告)日:1994-02-15

    申请号:US820573

    申请日:1992-01-14

    申请人: Akira Yamauchi

    发明人: Akira Yamauchi

    摘要: Tone generation in conformity with the tone generating mechanism of actual rubbed string instruments is made to obtain musical tones rich in reality as generated by natural musical instruments. Performance information outputted from a performance manipulator is converted into tone generation parameter by parameter generating means. Excitation means generate an excitation signal corresponding to the string-rubbing style on the basis of the tone generation parameter. A loop circuit gives both acoustic and propagation delay of the string to the excitation signal to thereby generate musical tone signals.

    摘要翻译: 根据实际的摩丝乐器的音调发生机制进行音调生成,以获得由自然乐器产生的丰富的现实音乐。 从演奏机械手输出的演奏信息由参数发生装置转换成乐音产生参数。 励磁装置根据乐音产生参数产生与弦摩擦风格对应的激励信号。 环路电路将串的声学和传播延迟提供给激励信号,从而产生乐音信号。

    Method of controlling sound source for electronic musical instrument,
and electronic musical instrument adopting the method
    9.
    发明授权
    Method of controlling sound source for electronic musical instrument, and electronic musical instrument adopting the method 失效
    控制电子乐器声源的方法及采用该方法的电子乐器

    公开(公告)号:US5200568A

    公开(公告)日:1993-04-06

    申请号:US648156

    申请日:1991-01-30

    IPC分类号: G10H1/055 G10H5/00

    摘要: In controlling a sound source for an electronic musical instrument, an operation data of a performance operation member corresponding to musical tone control parameters of a musical instrument is corrected according to a tone generation region characteristic of the musical instrument. The corrected data is inputted to a sound source circuit of the electronic musical instrument thereby a musical tone approximating of the musical instrument is regularly generated. The electronic musical instrument comprises a performance operation member for outputting position and pressure data of an operation member, a sound source for receiving musical tone control parameters corresponding to those of a musical instrument and generating a musical tone simulating that of the musical instrument, and a conversion circuit for converting the position and pressure data to those in a normal tone generation region as the musical tone control parameters in accordance with a tone generation region characteristic based on the musical tone control parameters of the musical instrument. The conversion circuit is connected to the sound source.

    Musical tone synthesizing apparatus
    10.
    发明授权
    Musical tone synthesizing apparatus 失效
    音乐合成装置

    公开(公告)号:US5187313A

    公开(公告)日:1993-02-16

    申请号:US562102

    申请日:1990-08-02

    申请人: Toshihiro Inoue

    发明人: Toshihiro Inoue

    IPC分类号: G10H5/00

    摘要: A musical tone synthesizing apparatus simulating a wind instrument includes an excitation circuit simulating a reed operation of a mouth piece portion, a resonance circuit simulating a resonance tube and a musical tone control circuit. The excitation circuit produces an excitation signal based on an input signal and a reflected wave signal transmitted from the resonance circuit. The excitation signal is input to the resonance circuit. The resonance circuit includes a bi-directional transmission circuit and a junction unit which is inserted into the bi-directional transmission circuit. The junction unit caries out a scattering operation corresponding to a scattering operation of compression wave of air which is occurred in the vicinity of the tone hole of the resonance tube. The excitation signal propagates through the bi-directional transmission circuit in a forward direction as a progressive wave signal. Then, a signal which is occurred by a scattering operation of the junction unit and the like propagates through the bi-directional transmission circuit in a backward direction as foregoing reflected wave signal. The signal operation of the resonance circuit, i.e., the delay time required for circulating the excitation signal through the closed-loop including the excitation circuit at least is controlled by the musical tone control circuit in response to an open/close operation applied to a tone hole so that musical tones which are generated by the non-electronic wind instrument having a plurality of tone holes are to be synthesized.

    摘要翻译: 模拟乐器​​的乐音合成装置包括模拟口部部分的簧片操作的激励电路,模拟谐振管的谐振电路和乐音控制电路。 激励电路基于从谐振电路发送的输入信号和反射波信号产生激励信号。 激励信号被输入到谐振电路。 谐振电路包括双向传输电路和插入到双向传输电路中的连接单元。 连接单元龋齿出现在谐振管附近发生的空气的压缩波的散射作用的散射作用。 激励信号作为逐行波信号沿正向传播通过双向传输电路。 然后,如上所述的反射波信号,通过连接单元等的散射操作发生的信号沿着反方向传播通过双向传输电路。 谐振电路的信号操作,即通过包括激励电路的闭环使激励信号循环所需的延迟时间至少由乐音控制电路响应于施加到音调的打开/关闭操作而被控制 使得由具有多个音孔的非电子管乐器产生的乐音将被合成。