公开(公告)号：US5641931A

公开(公告)日：1997-06-24

申请号：US411478

申请日：1995-03-28

申请人： Yoichiro Ogai ,  Iwao Higashi

发明人： Yoichiro Ogai ,  Iwao Higashi

IPC分类号： G10H1/12 ,  G10H5/00

CPC分类号： G10H1/125 ,  G10H5/007 ,  G10H2250/521

摘要： In a device which excites an oscillating signal in a closed loop containing a delay circuit and a filter so as to synthesize a sound of pitch corresponding to the total delay time in the closed loop, arithmetic operations are performed in the closed loop, in response to a change in a color controlling coefficient caused during generation of the sound, for interpolating delayed output signals from plural points in the loop having different delay time. This interpolation compensates for a variation in the signal delay time in the closed loop resultant from the change in the filter coefficient, to allow the entire closed loop to provide such a total delay time that excites oscillation corresponding to a desired pitch. The closed loop also includes first and second filters. When generation of the sound is to be started, the delay time adjustment or pitch modification is performed by using, as the first filter, an all-pass filter that has the advantage of having no adverse effect on the frequency characteristic of sound. During generation of the sound, so as to avoid the adverse effect resultant from a variation in the coefficient of the all-pass filter, variable control of the delay time or variation control of the pitch is performed by using, as the second filter, a low-pass filter that functions as a delay interpolator.

摘要翻译： 在包含延迟电路和滤波器的闭环中激励振荡信号以便合成对应于闭环中的总延迟时间的音调的声音的装置中，在闭环中执行运算，响应于 在产生声音期间引起的颜色控制系数的变化，用于内插具有不同延迟时间的循环中的多个点的延迟输出信号。 该内插补偿由滤波器系数的变化导致的闭环中的信号延迟时间的变化，以允许整个闭环提供激励对应于期望间距的振荡的总延迟时间。 闭环还包括第一和第二过滤器。 当要开始声音的产生时，通过使用具有对声音的频率特性没有不利影响的全通滤波器作为第一滤波器来执行延迟时间调整或音调修改。 在声音的产生期间，为了避免由全通滤波器的系数的变化引起的不利影响，可以通过使用作为第二滤波器的延迟时间的可变控制或音调的变化控制来实现 作为延迟内插器的低通滤波器。

公开(公告)号：US5223656A

公开(公告)日：1993-06-29

申请号：US657516

申请日：1991-02-19

申请人： Iwao Higashi

发明人： Iwao Higashi

IPC分类号： G10H1/043 ,  G10H1/053 ,  G10H5/00 ,  G10H7/00 ,  G10H7/08

CPC分类号： G10H5/007 ,  G10H2250/445 ,  G10H2250/521 ,  Y10S84/09 ,  Y10S84/10

摘要： A musical tone waveform signal forming apparatus comprises a delay loop circuit, a filter circuit a drive signal generation circuit and a modulation control circuit. The drive signal generation circuit inputs a drive signal to the delay loop circuit so that a musical tone is formed in the delay loop circuit. The filter circuit filters the musical tone. The modulation control circuit changes the delay length of the delay loop circuit and the characteristics of the filter circuit thereby adding a modulation effect on the musical tone to be generated.

摘要翻译： 乐音波形信号形成装置包括延迟环路电路，滤波电路，驱动信号发生电路和调制控制电路。 驱动信号发生电路向延迟环路输入驱动信号，使得在延迟环电路中形成乐音。 滤波器电路对音调进行滤波。 调制控制电路改变延迟环电路的延迟长度和滤波器电路的特性，从而对要产生的乐音增加调制效果。

公开(公告)号：US5432296A

公开(公告)日：1995-07-11

申请号：US108993

申请日：1993-08-18

申请人： Chifumi Takeuchi ,  Iwao Higashi

发明人： Chifumi Takeuchi ,  Iwao Higashi

IPC分类号： G10H7/08 ,  G10H5/00 ,  G10K15/12 ,  G10H1/12

CPC分类号： G10H5/007 ,  G10H2250/061 ,  G10H2250/115 ,  G10H2250/435 ,  G10H2250/521 ,  Y10S84/09 ,  Y10S84/10

摘要： The musical tone synthesizing apparatus is mainly configured by a closed loop which at least provides a delay circuit and an all-pass filter. The delay circuit delays an input signal (e.g., excitation wave signal) by a first delay time corresponding to a certain integral number of sampling periods. The all-pass filter functions to at least delay an output of the delay circuit by a second delay time corresponding to a decimal fraction of the sampling period, so that an output of the all-pass filter is fed back to the delay circuit. The whole delay time of the closed loop consists of the first and second delay times which can be respectively controlled. Thus, a musical tone signal representing a synthesized musical tone (e.g., an attenuating sound which is produced from an percussion instrument) is picked up from the closed loop. Incidentally, the whole configuration of the closed loop can be embodied by a digital signal processor (DSP).

摘要翻译： 音乐合成装置主要由至少提供延迟电路和全通滤波器的闭环配置。 延迟电路将输入信号（例如，激励波信号）延迟对应于一定整数个采样周期的第一延迟时间。 全通滤波器用于至少将延迟电路的输出延迟对应于采样周期的小数部分的第二延迟时间，使得全通滤波器的输出反馈到延迟电路。 闭环的整个延迟时间由可分别控制的第一和第二延迟时间组成。 因此，从闭环拾取表示合成乐音（例如，从打击乐器产生的衰减声音）的乐音信号。 顺便提及，闭环的整体结构可以由数字信号处理器（DSP）来体现。

公开(公告)号：US5386082A

公开(公告)日：1995-01-31

申请号：US969560

申请日：1992-10-30

申请人： Iwao Higashi

发明人： Iwao Higashi

IPC分类号： G01H17/00 ,  H04S1/00 ,  G10H7/00 ,  G10H1/02

CPC分类号： G01H17/00 ,  H04S1/002 ,  H04S1/005

摘要： A method of detecting localization of an acoustic image, in which an acoustic impulse is emitted from a sound source to a dummy of a human head, an acoustic sensor is provided to a portion of the dummy's ears, and the response waveform is received by the acoustic sensor. This enables the detection of what effects are derived from interruption, reflection, and the like of a tone due to the human head. The received response waveform is analyzed and parameters for an acoustic image localization system are obtained. The acoustic image localization system comprising a delay circuit, a filter and an amplification controller sets the parameters into the delay circuit, the filter and the amplification controller, so that the detected localization of an acoustic image is reproduced.

摘要翻译： 一种检测声波图像的定位方法，其中将声脉冲从声源发射到人头部的假人，声传感器被提供给虚拟耳朵的一部分，并且响应波形由 声传感器 这使得能够检测由于人头引起的音调的中断，反射等导致什么效果。 分析接收到的响应波形，并获得声像定位系统的参数。 包括延迟电路，滤波器和放大控制器的声像定位系统将参数设置到延迟电路，滤波器和放大控制器中，从而再现检测到的声像的定位。

公开(公告)号：US5308918A

公开(公告)日：1994-05-03

申请号：US869448

申请日：1992-04-16

申请人： Akira Yamauchi ,  Toshifumi Kunimoto ,  Chifumi Takeuchi ,  Iwao Higashi

发明人： Akira Yamauchi ,  Toshifumi Kunimoto ,  Chifumi Takeuchi ,  Iwao Higashi

IPC分类号： G10H1/00 ,  G10H1/12 ,  G10H5/00 ,  H03H17/00 ,  H03H17/06 ,  G10H5/02

CPC分类号： H03H17/0027 ,  G10H1/0091 ,  G10H1/12 ,  G10H5/007 ,  H03H17/06 ,  G10H2250/115 ,  G10H2250/521 ,  Y10S84/09 ,  Y10S84/10 ,  Y10S84/26

摘要： The present invention provides a signal delay circuit for substantially steplessly changing a delay interval. The signal delay circuit is composed essentially of a delay controller, a first delay circuit, and a second delay circuit. The delay controller generates and outputs control data consisting of a real number bearing control information for controlling the delay interval, the real number consists of an integral portion and a fractional portion. The first delay circuit receives an incidental signal, delays the incidental signal for creating a first intermediate signal, and outputs the first intermediate signal, the first intermediate signal being delayed with respect to the incidental signal by an interval which is a product of a predetermined cardinal interval and the integral portion of the real number. The second delay circuit receives the first intermediate signal, produces at least one second intermediate signal by delaying the first intermediate signal by at least one interval which is an integral multiple of the predetermined cardinal interval, interpolates the first intermediate signal and said at least one second intermediate signal for producing a delayed signal, and outputs the delayed signal, the delayed signal being delayed with respect to the first intermediate signal by an interval which is a product of the predetermined cardinal interval and the fractional portion of the real number. As a result, the delayed signal is delayed with respect to the incidental signal by a delay interval which is a product of the predetermined cardinal interval and the real number output by the delay control means.

摘要翻译： 本发明提供一种用于基本上无级改变延迟间隔的信号延迟电路。 信号延迟电路基本上由延迟控制器，第一延迟电路和第二延迟电路组成。 延迟控制器产生并输出由用于控制延迟间隔的实数轴承控制信息组成的控制数据，实数由整体部分和分数部分组成。 第一延迟电路接收附带信号，延迟用于产生第一中间信号的附带信号，并且输出第一中间信号，第一中间信号相对于附带信号延迟一个间隔，该间隔是预定基数 间隔和实数的积分部分。 第二延迟电路接收第一中间信号，通过将第一中间信号延迟至少一个间隔，产生至少一个第二中间信号，该间隔是预定基本间隔的整数倍，内插第一中间信号和所述至少一个第二中间信号 用于产生延迟信号的中间信号，并且输出延迟信号，延迟信号相对于第一中间信号延迟一个间隔，该间隔是预定基数和实数的分数部分的乘积。 结果，延迟信号相对于附带信号被延迟延迟间隔，该延迟间隔是预定的基本间隔与由延迟控制装置输出的实数的乘积的乘积。

公开(公告)号：US5298678A

公开(公告)日：1994-03-29

申请号：US656580

申请日：1991-02-14

申请人： Iwao Higashi

发明人： Iwao Higashi

IPC分类号： G10H7/00 ,  G10H1/00 ,  G10H1/053 ,  G10H5/00 ,  G10H7/08 ,  G10H5/02

CPC分类号： G10H5/007 ,  G10H2250/461 ,  G10H2250/535

摘要： A musical tone waveform signal forming apparatus comprises a waveform signal transmission section, a musical tone control signal input section and a pitch control section. The waveform signal transmission section comprises a plurality of signal transmission units which are connected in cascade one by one and each of which comprises first and second signal lines respectively serving as forward and backward paths of a waveform signal and a node portion for feeding back an output from the first signal line to an input side of the second signal line. At least one of the first and second signal lines serves as a signal delay line. The musical tone control signal input section receives the waveform signal from the waveform signal transmission section and a musical tone control signal for controlling musical tone parameters of a musical tone to be generated to change the waveform signal in accordance with the musical tone control signal and output the changed waveform signal to the waveform signal transmission section. The pitch control section changes delay times of the signal delay lines in accordance with a pitch signal, one of the tone control signal, for controlling a tone pitch of the musical tone to be generated.

摘要翻译： 乐音波形信号形成装置包括波形信号发送部分，乐音控制信号输入部分和音调控制部分。 波形信号传输部分包括多个逐级连接的信号传输单元，每个信号传输单元包括分别用作波形信号的正向和反向路径的第一和第二信号线，以及用于反馈输出的节点部分 从第一信号线到第二信号线的输入侧。 第一和第二信号线中的至少一个用作信号延迟线。 乐音控制信号输入部分接收来自波形信号发送部分的波形信号和用于控制生成的乐音的乐音参数的乐音控制信号，以根据乐音控制信号改变波形信号并输出 改变波形信号到波形信号传输部分。 音调控制部分根据音调信号改变信号延迟线的延迟时间，该音调信号是音调控制信号之一，用于控制要生成的乐音的音调。

公开(公告)号：US5264658A

公开(公告)日：1993-11-23

申请号：US778584

申请日：1991-10-17

申请人： Yasuyuki Umeyama ,  Iwao Higashi

发明人： Yasuyuki Umeyama ,  Iwao Higashi

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

CPC分类号： G10H5/007 ,  G10H1/125 ,  G10H2250/521 ,  Y10S84/09 ,  Y10S84/10

摘要： An electronic musical instrument includes an excitation circuit, a closed loop circuit, a characteristics analysis circuit and a control circuit. The excitation circuit generates an excitation signal in response to performance information. The closed loop circuit causes the excitation signal inputted from the excitation circuit to circulate thereabout musical tone signal. The closed loop circuit also has a delay circuit for delaying the musical tone signal for a predetermined time. The characteristics analysis circuit analyzes an input signal and generates a control signal corresponding to the result of the analysis of the input signal. The control circuit controls characteristics of the musical tone signal circulating in the closed loop circuit in response to the control signal. The musical tone signal circulating in the closed loop circuit is then outputted therefrom as a sound signal.

摘要翻译： 电子乐器包括励磁电路，闭环电路，特性分析电路和控制电路。 激励电路响应于性能信息产生激励信号。 闭环电路使得从激励电路输入的激励信号在该音调信号周围循环。 闭环电路还具有用于在预定时间内延迟乐音信号的延迟电路。 特性分析电路分析输入信号并产生与输入信号的分析结果对应的控制信号。 控制电路响应于控制信号控制在闭环电路中循环的乐音信号的特性。 然后，在闭环电路中循环的乐音信号作为声音信号输出。

公开(公告)号：US5245127A

公开(公告)日：1993-09-14

申请号：US869860

申请日：1992-04-16

申请人： Akira Yamauchi ,  Toshifumi Kunimoto ,  Chifumi Takeuchi ,  Iwao Higashi

发明人： Akira Yamauchi ,  Toshifumi Kunimoto ,  Chifumi Takeuchi ,  Iwao Higashi

IPC分类号： G10H1/00 ,  G10H1/12 ,  G10H5/00 ,  H03H17/06

CPC分类号： G10H1/12 ,  G10H1/0091 ,  G10H5/007 ,  H03H17/06 ,  G10H2250/115 ,  G10H2250/521 ,  Y10S84/10 ,  Y10S84/26

摘要： The present invention provides a signal delay circuit for substantially steplessly changing a delay interval. The signal delay circuit is composed essentially of a delay controller, a first delay circuit, and a second delay circuit. The delay controller generates and outputs control data consisting of a real number bearing control information for controlling the delay interval, the real number consists of an integral portion and a fractional portion. The first delay circuit receives an incidental signal, delays the incidental signal for creating a first intermediate signal, and outputs the first intermediate signal, the first intermediate signal being delayed with respect to the incidental signal by an interval which is a product of a predetermined cardinal interval and the integral portion of the real number. The second delay circuit receives the first intermediate signal, produces at least one second intermediate signal by delaying the first intermediate signal by at least one interval which is an integral multiple of the predetermined cardinal interval, interpolates the first intermediate signal and said at least one second intermediate signal for producing a delayed signal, and outputs the delayed signal, the delayed signal being delayed with respect to the first intermediate signal by an interval which is a product of the predetermined cardinal interval and the fractional portion of the real number. As a result, the delayed signal is delayed with respect to the incidental signal by a delay interval which is a product of the predetermined cardinal interval and the real number output by the delay control means.

摘要翻译： 本发明提供一种用于基本上无级改变延迟间隔的信号延迟电路。 信号延迟电路基本上由延迟控制器，第一延迟电路和第二延迟电路组成。 延迟控制器产生并输出由用于控制延迟间隔的实数轴承控制信息组成的控制数据，实数由整体部分和分数部分组成。 第一延迟电路接收附带信号，延迟用于产生第一中间信号的附带信号，并且输出第一中间信号，第一中间信号相对于附带信号延迟一个间隔，该间隔是预定基数 间隔和实数的积分部分。 第二延迟电路接收第一中间信号，通过将第一中间信号延迟至少一个间隔，产生至少一个第二中间信号，该间隔是预定基本间隔的整数倍，内插第一中间信号和所述至少一个第二中间信号 用于产生延迟信号的中间信号，并且输出延迟信号，延迟信号相对于第一中间信号延迟一个间隔，该间隔是预定基数和实数的分数部分的乘积。 结果，延迟信号相对于附带信号被延迟延迟间隔，该延迟间隔是预定的基本间隔与由延迟控制装置输出的实数的乘积的乘积。

公开(公告)号：US5198604A

公开(公告)日：1993-03-30

申请号：US758675

申请日：1991-09-12

申请人： Iwao Higashi ,  Yasuyuki Umeyama

发明人： Iwao Higashi ,  Yasuyuki Umeyama

IPC分类号： G10H1/00 ,  G10H1/08

CPC分类号： G10H1/08 ,  G10H1/0091 ,  G10H2210/271 ,  G10H2210/305 ,  G10H2250/046 ,  G10H2250/051 ,  G10H2250/105 ,  Y10S84/01 ,  Y10S84/27

摘要： A resonant effect apparatus for an electronic musical instrument includes a plurality of resonant tone signal forming channels for forming a plurality of resonant tone signals different in their resonant frequency characteristics when applied with a musical tone to be generated and a plurality of acoustic conversion systems for acoustically converting each of the resonant tone signals to issue the converted resonant tone signals therefrom. In the resonant effect apparatus, a supply condition of the resonant tone signals to the acoustic conversion systems is controlled for control of a sound localization of the resonant tone signals.

摘要翻译： 一种用于电子乐器的谐振效应装置包括多个谐振音信号形成通道，用于在应用要产生的乐音时形成谐振频率特性不同的多个谐振音信号，以及用于声学的多个声转换系统 转换每个谐振音信号以从其发出转换的谐振音信号。 在谐振效应装置中，控制对声转换系统的谐振音信号的供给条件，以控制谐振音信号的声音定位。

公开(公告)号：US5646362A

公开(公告)日：1997-07-08

申请号：US605455

申请日：1996-02-26

申请人： Masahiro Koyama ,  Takuro Sone ,  Iwao Higashi

发明人： Masahiro Koyama ,  Takuro Sone ,  Iwao Higashi

IPC分类号： G10H1/00 ,  G10H1/18 ,  G10H7/00

CPC分类号： G10H1/0008 ,  G10H2220/116

摘要： When sound parameters defining a selected element among plural elements constituting a sound are edited, a predetermined schematic display of the entire elements constituting the sound is made and, also, a particular part of the schematic display corresponding to the selected element in a special form is made about the selected element for emphasizing it. An operator can thereby recognize easily for which part of element in the entire sound structure he is currently making the parameter editing. In response to designation of a desired object of editing by the operator, plural possible candidates of edition processings corresponding to the designated object are displayed. Upon selection of one of the plural processings by the operator, the selected editing processing is automatically performed.

摘要翻译： 当编辑构成声音的多个元素中的选定元素的声音参数时，构成声音的整个元素的预定示意性显示，并且与特定形式的所选元素对应的示意图显示的特定部分也是 关于选择的元素来强调它。 因此，操作者可以容易地识别他当前进行参数编辑的整个声音结构中的哪一部分元素。 响应于操作者所期望的编辑对象的指定，显示对应于指定对象的多个可能的编辑处理候选。 在由操作者选择多个处理中的一个时，自动执行所选择的编辑处理。