KR960010269Y1 - Three-dimensional chord generating circuit of an electronic organ - Google Patents

Three-dimensional chord generating circuit of an electronic organ Download PDF

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KR960010269Y1
KR960010269Y1 KR2019900011945U KR900011945U KR960010269Y1 KR 960010269 Y1 KR960010269 Y1 KR 960010269Y1 KR 2019900011945 U KR2019900011945 U KR 2019900011945U KR 900011945 U KR900011945 U KR 900011945U KR 960010269 Y1 KR960010269 Y1 KR 960010269Y1
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keys
terminal
sound
output
pressed
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KR920005131U (en
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이하정
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대우전자 주식회사
김용원
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/02Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/36Accompaniment arrangements
    • G10H1/38Chord
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/571Chords; Chord sequences

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  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

내용없음.None.

Description

전자오르간의 입체화음 발생회로Three-dimensional sound generation circuit of electronic organ

제1도는 본 고안에 따른 전자오르간의 입체 화음 발생회로도이다.1 is a stereoscopic chord generation circuit diagram of an electronic organ according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1a-1c : NPN형 트랜지스터 2a-3c : PNP형 트랜지스터1a-1c: NPN transistor 2a-3c: PNP transistor

3 : 가산회로 4 : 필터회로3: addition circuit 4: filter circuit

R : 저항R: resistance

본 고안은 전자오르간에 있어서, 특히 복수개의 건반을 동시에 눌러 화음을 발생시킬 때 어느 특정 건반의 가압상태에 따라 음의 강약을 구분하여 입체감과 섬세한 화음이 발생할 수 있도록 된 전자오르간의 입체 화음 발생회로에 관한 것이다.The present invention is a three-dimensional chord generating circuit of the electronic organ, in particular, when generating a chord by pressing a plurality of keys at the same time to generate a three-dimensional feeling and delicate chords by separating the intensity of the sound according to the pressing state of a particular key It is about.

일반적으로 전자오르간의 화음발생장치는 조작된 건반에 해당되는 음을 단순히 합성하여 얻은 화음을 출력하도록 되어 있기 때문에 음의 입체감이 없을 뿐만아니라 섬세한 화음을 발생할 수 없어 전자오르간의 신뢰성이 저하되는 문제점이 있었다.In general, the chord generator of an electronic organ outputs a chord obtained by simply synthesizing the sound corresponding to the manipulated keyboard, and thus, there is no stereoscopic feeling of the sound and a delicate chord cannot be generated. there was.

따라서, 본 고안은 상기와 같은 종래의 전자오르간의 화음발생장치에서 발생되고 있는 제반의 문제점을 해소 할 수 있도록 안출된 것으로 해당되는 건반을 누를 때 가압되는 속도에 따라 트랜지스터의 베이스단으로 인가되는 클럭의 크기를 다르게하여 해당건반으로부터 출력되는 음을 제어하므로서, 복수개의 건반을 동시에 눌러 화음을 발생시킬 때 특정 건반의 가압상태에 따라 입체감과 섬세한 화음이 발생할 수 있도록 된 전자오르간의 입체화음발생회로를 제공하는데 그 목적이 있다.Therefore, the present invention is designed to solve the problems caused in the conventional electronic organ chord generating device as described above. The clock is applied to the base of the transistor according to the speed of pressing the corresponding key. By controlling the sound output from the corresponding key by changing the size of the key, a three-dimensional chord generating circuit between the electronic organs, which allows three-dimensional feeling and delicate chords to be generated according to the pressing state of a specific key when pressing a plurality of keys simultaneously The purpose is to provide.

상기의 목적을 달성하기 위하여 본 고안은 전자오르간에 있어서,In order to achieve the above object, the present invention provides an electron organ,

눌러지는 속도에 따라 크기가 다른 클럭신호 및 지정된 음을 발생하는 건반(A, B, C)와; 베이스단자가 상기 각 건반(A, B, C)으로부터 출력되는 클럭신호를 인가받게 각 건반(A, B, C)에 접속되고 컬렉터단자가 저항을 매개로 지정된 음에 해당되는 주파수를 발생하는 상기 각 건반(A, B, C)에 접속됨과 더불어 각 PNP형 트랜지스터(2a-2c)의 에미터단자에 접속되며 에미터단자가 그라운드(GND)에 접속된 각 NPN형 트랜지스터(1a-1c)와;A key (A, B, C) for generating a clock signal and a specified sound having a different magnitude in accordance with the pressed speed; The base terminal is connected to each of the keys (A, B, C) to receive the clock signal output from each of the keys (A, B, C), and the collector terminal generates a frequency corresponding to the sound specified by resistance Each NPN transistor 1a-1c, which is connected to each of the keys A, B, and C, is connected to the emitter terminal of each PNP transistor 2a-2c, and the emitter terminal is connected to the ground GND. ;

베이스단자가 상기 각 건반(A, B, C)에 가압되면 출력되는 로우레벨신호를 인가받게 각 건반(A, B, C)에 접속되고 컬렉터단자가 저항(R)을 매개로 가산회로(3)의 반전입력단자(-)에 접속된 각 PNP형 트랜지스터(2a-2c)와;The base terminal is connected to each of the keys A, B, and C to receive a low-level signal output when the base terminal is pressed to each of the keys A, B, and C, and the collector terminal is connected to the addition circuit 3 through the resistor R. Each PNP-type transistor 2a-2c connected to the inverting input terminal (-) of < RTI ID = 0.0 >

상기 각 PNP형 트랜지스터(2a-2c)의 컬렉터단자에 접속된 저항(R)을 통하여 입력되는 신호를 합성하는 가산회로(3)와; 상기 가산회로(3)로부터 합성되어 출격되는 신호를 기설정된 대역의 신호만을 출력단(Vo)으로 출력되게 필터링하는 필터회로(4)를 구비하여 이루어진 것을 특징으로 하는 전자오르간의 입체화음발생회로에 의하여 달성된다.An addition circuit (3) for synthesizing a signal input through a resistor (R) connected to the collector terminals of the respective PNP transistors (2a-2c); The electronic organ stereoscopic sound generating circuit comprises a filter circuit 4 for filtering only the signals of a predetermined band to be output to the output terminal Vo. Is achieved.

본 고안의 상기 및 기타목적과 특징 및 효과는 첨부된 도면에 의거 설명되는 실시예에 의하여 보다 명확하게 이해할 수 있을 것이다.The above and other objects, features and effects of the present invention will be more clearly understood by the embodiments described based on the accompanying drawings.

도면의 제1도는 본 고안에 따른 전자오르간의 입체화음발생회로도이다.1 is a circuit diagram of stereoscopic sound generation between electronic organs according to the present invention.

상기 전자오르간을 사용하는 사용자가 전자오르간에 설치되어 있는 각 건반(A, B, C)을 누르게 되면 눌려진 각 건반(A, B, C)에 의하여 해당되는 화음이 발생된다.When a user using the electronic organ presses each of the keys A, B, and C installed in the electronic organ, a corresponding chord is generated by each of the keys A, B, and C pressed.

상기 눌려진 각 건반(A, B, C)으로부터 화음이 발생되는 과정을 본 고안의 고안자에 의하여 고안된 대한민국 실용신안등록출원 1990년 제11941호(전자오르간의 음량 강약 검출회로)에 개시된 바와 같이 상기 전자오르간의 각 건반(A, B, C)을 강하게 누르면 건반(A, B, C)의 누름초기로부터 완전히 눌리는데 까지의 시간이 짧게 걸리게 되고, 반면 상기 건반(A, B, C)을 약하게 누르면 건반(A, B, C)의 누름초기로부터 완전히 눌리는데 까지의 시간이 길게 걸리게 된다.As described in the Korean Utility Model Registration No. 1990, No. 11941 (electron organ loudness detection circuit) devised by the inventor of the present invention, the process of generating chords from each of the pressed keys A, B, and C Pressing strongly on each organ (A, B, C) of the organ takes a short time from the initial press of the keys (A, B, C) to a complete press, while pressing weakly on the keys (A, B, C) It takes a long time from the initial press of the keys A, B, and C to fully press.

따라서, 상기 각 건반(A, B, C)의 누름초기의 상태에서부터 건반(A, B, C)의 완전눌림상태로 되는데 까지의 시간을 카운터에서 역으로 카운트하게 되고, 상기 카운터로부터 역으로 카운트된 최종적인 값(예컨대, '19', '18', '17,' '16'...)은 중앙연산처리장치(CPU)로 전송되며, 상기 중앙연산처리장치(CPU)는 전송된 신호에 의하여 음원칩을 제어하여 해당되는 각 건반(A, B, C)의 음신호 및 클럭신호를 출력하게 된다.Therefore, the time from the initial state of pressing each of the keys A, B, and C to the fully pressed state of the keys A, B, and C is counted in reverse at the counter, and counted in reverse from the counter. Final values (e.g., '19', '18', '17, '' 16 '...) are transmitted to the central processing unit (CPU), and the central processing unit (CPU) transmits the transmitted signals. The sound source chip is controlled to output sound signals and clock signals of the corresponding keys A, B, and C.

또한, 상기 각 건반(A, B, C)을 동시에 누르게 되면 각 건반(A, B, C)이 완전 눌림상태를 유지하고 있는 시간동안 턴 오프(TURN OFF)상태를 유지하고 있는 수광트랜지스터의 컬렉터단(즉, '9'지점)으로부터 출력되는 하이레벨의 신호는 인버터를 통하여 반전되어 로우레벨의 신호로 출력하게 되는 것이다.In addition, when the keys A, B, and C are simultaneously pressed, the collectors of the light receiving transistors that are kept turned off while the keys A, B, and C are kept fully pressed. The high level signal outputted from the stage (ie, '9' point) is inverted through the inverter and output as a low level signal.

상기와 같은 내용은 대한민국 실용신안등록출원 1990년 11941호에 기재된 내용과 도면에 의해 입증된다. 따라서, 상기 눌려진 각 건반(A, B, C)에 의해 출력되는 로우레벨신호는 각 PNP형트랜지스터(2a-2C)의 베이스단자로 전송되고, 상기 각 건반(A, B, C)으로부터 로우레벨신호를 전송받은 PNP형 트랜지스터(2a-2c)는 턴온(TURN ON)상태로 된다.Such information is proved by the contents and drawings described in Korean Utility Model Registration Application No. 11941, 1990. Accordingly, the low level signals output by the pressed keys A, B, and C are transmitted to the base terminals of the respective PNP type transistors 2a-2C, and are low level from the respective keys A, B, and C. The PNP transistors 2a-2c receiving the signal are turned on.

한편, 상기 눌려진 각 건반(A, B, C)에 의해 출력되는 각 음신호는 저항을 매개로 각 NPN형 트랜지스터(1a-1c)의 컬렉터단자로 전송도고, 동시에 상기 눌려진 각 건반(A, B, C)에 의해 출력되는 해당크기의 클럭신호는 각 NPN형 트랜지스터(1a-1c)의 베이스단자로 전송되며, 상기 눌려진 각 건반(A, B, C)에 의해 크기가 다른 클럭신호를 전송받은 각 NPN형 트랜지스터(1a-1c)는 턴온된다.On the other hand, each sound signal output by each of the pressed keys A, B, and C is transmitted to a collector terminal of each NPN transistor 1a-1c through a resistance, and at the same time, each of the pressed keys A, B , The clock signal of the corresponding magnitude output by C) is transmitted to the base terminal of each NPN transistor (1a-1c), and the clock signal of different magnitude is transmitted by each pressed key (A, B, C). Each NPN transistor 1a-1c is turned on.

즉, 상기 각 건반(A, B, C)의 가압속도에 따라 카운터로부터 역으로 카운트된 최종적인 값을 전송받은 중앙연산처리장치(CPU)는 각 건반(A, B, C)의 가압속도에 해당되는 크기의 클럭신호를 발생할 수 있게 음원 칩을 제어하게 되고, 상기 중앙연산처리장치(CPU)에 의해 제어된 음원 칩에 의해 각 건반(A, B, C)의 가압속도에 해당되는 크기의 클럭신호를 각 NPN형 트랜지스터(1a-1c)의 베이스단자로 전송하게 된다.That is, the central processing unit (CPU) receiving the final value counted backward from the counter according to the pressing speed of each of the keys (A, B, C) corresponds to the pressing speed of each of the keys (A, B, C). The sound source chip is controlled to generate a clock signal having a corresponding size, and the sound source chip controlled by the central processing unit (CPU) has a size corresponding to the pressing speed of each key (A, B, C). The clock signal is transferred to the base terminals of the NPN transistors 1a-1c.

상기 턴온된 NPN형 트랜지스터(1a-1c)에 의해 각 건반(A, B, C)으로부터 해당되는 음신호를 컬렉터단자로 전송받은 NPN형 트랜지스터(1a-1c)는 각 컬렉터단자로 전송되어 온 음신호를 턴온상태를 유지하고 있는 각 PNP형 트랜지스터(2a-2c)의 에미터단자로 전송하게 되고, 상기 각 에미터단자로 전송된 음신호는 턴온상태를 유지하고 있는 각 PNP형 트랜지스터(2a-2c)에 의해 각 컬렉터단자에 접속된 저항(R)을 통하여 가산회로(3)의 반전입력단(-)으로 전송되며, 상기 가산회로(3)의 반전입력단(-)으로 전송된 음신호는 가산회로(3)에 의해 합성된다.The NPN transistors 1a-1c, which have received the corresponding sound signals from the respective keyboards A, B, and C to the collector terminals by the turned on NPN transistors 1a-1c, are transferred to each collector terminal. The signal is transmitted to the emitter terminals of each of the PNP transistors 2a-2c which are kept turned on, and the negative signal transmitted to each emitter terminal is turned on by each of the PNP transistors 2a- which are kept turned on. 2c) is transmitted to the inverting input terminal (-) of the adding circuit 3 through the resistor R connected to each collector terminal, and the negative signal transmitted to the inverting input terminal (-) of the adding circuit 3 is added. Synthesized by the circuit 3.

상기 가산회로(3)에 의해 합성된 음신호는 필터회로(4)로 전송되고, 상기 필터회로로 전송된 합성되어 있는 음신호는 주파수 대역이 기준으로 설정된 필터회로(4)에 의해 설졍된 대역폭에 해당되는 음의 주파수신호만을 통과하게 필터링되며, 상기 필터회로(4)에서 필터링된 신호는 출력단(Vo)으로 출력되어 상기 각 건반(A, B, C)의 가압상태(즉, 건반을 강하게 누르는 상태 또는 건반을 약하게 누르는 상태)에 따라 특정음이 강하게 또는 약하게 출력되어져 섬세한 화음을 발생할 수 있게 된다.The sound signal synthesized by the addition circuit 3 is transmitted to the filter circuit 4, and the synthesized sound signal transmitted to the filter circuit is the bandwidth set by the filter circuit 4 whose frequency band is set as a reference. Only the negative frequency signal corresponding to the filter is passed through, and the signal filtered by the filter circuit 4 is output to the output terminal Vo, so that each of the keys A, B, C is pressed (that is, the keyboard is strongly Depending on the state of pressing or pressing the key lightly), a specific sound is output strongly or weakly, and delicate chords can be generated.

상술한 바와같이 본 고안은 복수개의 건반을 누를때의 가압속도에 따라 클럭의 크기를 다르게하여 화음의 음색을 조정할 수 있게 하므로서 입체적인 화음을 발생할 수 있어 전자오르간의 신뢰성을 향상시킬 수 있도록 된것이다.As described above, the present invention allows three-dimensional chords to be generated by varying the size of the clock according to the pressing speed when a plurality of keys are pressed, thereby improving the reliability of the electronic organ.

Claims (1)

(정정) 전자오르간에 있어서, 눌러지는 속도에 따라 크기가 다른 클럭신호 및 지정된 음을 발생하는 건반(A, B, C)와; 베이스단자가 상기 각 건반(A, B, C)으로부터 출력되는 클럭신호를 인가받게 각 건반(A, B, C)에 접속되고 컬렉터단자가 저항을 매개로 지정된 음에 해당되는 주파수를 발생하는 상기 각 건반(A, B, C)에 접속됨과 더불어 각 PNP형 트랜지스터(2a-2c)의 에미터단자에 접속되며 에미터단자가 그라운드(GND)에 접속된 각 NPN형 트랜지스터(1a-1c)와; 베이스단자가 상기 각 건반(A, B, C)에 가압되면 출력되는 로우레벨신호를 인가받게 각 건반(A, B, C)에 접속되고 컬렉터단자가 저항(R)을 매개로 가산회로(3)의 반전입력단자(-)에 접속된 각 PNP형 트랜지스터(2a-2c)와;상기 각 PNP형 트랜지스터(2a-2c)의 컬렉터단자에 접속된 저항(R)을 통하여 입력되는 신호를 합성하는 가산회로(3)와; 상기 가산회로(3)로부터 합성되어 출격되는 신호를 기설정된 대역의 신호만을 출력단(Vo)으로 출력되게 필터링하는 필터회로(4)를 구비하여 이루어진 것을 특징으로 하는 전자오르간의 입체 화음 발생회로.(Correction) An electronic organ, comprising: keys (A, B, C) for generating a clock signal and a specified sound having a different magnitude in accordance with a pressed speed; The base terminal is connected to each of the keys (A, B, C) to receive the clock signal output from each of the keys (A, B, C), and the collector terminal generates a frequency corresponding to the sound specified by resistance Each NPN transistor 1a-1c, which is connected to each of the keys A, B, and C, is connected to the emitter terminal of each PNP transistor 2a-2c, and the emitter terminal is connected to the ground GND. ; The base terminal is connected to each of the keys A, B, and C to receive a low-level signal output when the base terminal is pressed to each of the keys A, B, and C, and the collector terminal is connected to the addition circuit 3 through the resistor R. A PNP transistor (2a-2c) connected to the inverting input terminal (-) of the < RTI ID = 0.0 >) < / RTI > An addition circuit 3; And a filter circuit (4) for filtering only the signals of a predetermined band to be output to the output terminal (Vo).
KR2019900011945U 1990-08-08 1990-08-08 Three-dimensional chord generating circuit of an electronic organ KR960010269Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019900011945U KR960010269Y1 (en) 1990-08-08 1990-08-08 Three-dimensional chord generating circuit of an electronic organ

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KR920005131U KR920005131U (en) 1992-03-26
KR960010269Y1 true KR960010269Y1 (en) 1996-12-04

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