JPH0755597Y2 - Musical tone generation control device - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention relates to a musical sound generation control device capable of controlling the generation of musical sounds in accordance with a player's arm raising motion and fingertip pressing motion. is there.

"Prior Art" As is well known, with electronic keyboard tones, the performer operates the keyboard and various operation switches with his / her limbs to generate the required pitch and tone to play music. There is.

"Problems to be solved by the invention" By the way, in the above-described conventional electronic keyboard musical instrument, the pitch and the like cannot be specified other than pressing a key with a hand or a foot, and the playing method of music is limited. Was there.

Then, this invention aims at providing the musical tone generation control apparatus which can control a musical tone by the player's arm raising motion and finger pressing action.

"Means for Solving Problems" This invention is a pressing force that is incorporated in a member that can be held by one hand and that outputs a signal corresponding to the pressing force applied by each fingertip of the hand holding the member. Detecting means, angle detecting means for outputting a signal corresponding to the arm swing-up angle, and a tone having a pitch corresponding to the output signal output from the angle detecting means when the pressing force detecting means detects the pressing force. Is provided with a tone control data generating means for generating tone control data for controlling the tone generating device so as to generate a sound based on the output signal of the pressing force detecting means.

[Operation] According to the above configuration, since the musical tone generating device can be controlled by the degree of pushing of each fingertip of the hand holding the member or the combination of the pushing fingers, and the swing-up angle of the arm, for example,
A variety of musical tones can be generated by designating the pitch, etc. by swinging up the player's arm, and by designating the tone color, octave, or sounding timing, etc. by the pressing action of the fingertip, enabling advanced performance. .

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, and FIG. 2 is a grip 1R, 1 used in the same embodiment.
FIG. 3 is a diagram showing external configurations of L and angle detectors 30R and 30L.

First, the structure of the grips 1R and 1L will be described with reference to FIG. The grip 1R is for the right hand, and the grip 1L is for the left hand, and these are configured to be bilaterally symmetrical. Therefore, only the grip 1R for the right hand will be described below, and the reference symbol R of each part should be read as L. Therefore, the description of the left-hand grip 1L will be replaced.

In the grip 1R for the right hand, 2R is a case having a shape that can be gripped by the right hand, and this case 2R has a base part between the thumb and forefinger so as not to fit in the hand when gripped by the right hand. A closely curved surface 2Ra is formed, and a locking portion 2Rb sandwiched between the ring finger and the middle finger is formed so as not to come off from the grasped hand (see FIG. 6). Also, case 2
Seven pressure sensors SR _{1 to} SR ₇ are incorporated in R.
Each of these pressure sensors SR _{1 to} SR ₇ is composed of a push button that is provided so as to project and retract in the case 2R, and a piezoelectric element whose specific resistance value changes according to the pressure applied through this push button. It is configured.

Here, the arrangement of the pressure sensors SR _{1 to} SR ₇ will be described.
The pressure sensors SR _{1 to} SR ₇ are arranged at positions where they can be easily pressed by the five fingertips when the grip 1R is gripped by the right hand, and the pressure sensors SR ₁ and SR ₂ can be pressed by the thumb. Pressure sensors SR ₃ and S
R ₄ is arranged vertically in a position where it can be pressed by the index finger, and pressure sensors SR ₅ , SR ₆ , and SR ₇ are the middle finger, ring finger,
They are arranged side by side in the vertical direction at positions where they can be pressed by the little fingers. With this arrangement, it is possible to operate the _seven pressure sensors SR _{1 to} SR ₇ without difficulty with the five fingers of one hand.

When each of the pressure sensors SR _{1 to} SR ₇ is pushed in by the fingertip, a pressing force acts on the internal piezoelectric element, and the resistance value changes. Each of these pressure sensors SR
_{1 to} SR ₇ are connected to the 6th via the cable 3R and connector 4R.
As shown in the figure, it is connected to a belt-type main body (musical sound control data generating means) 5 mounted on the player's waist. The external structure of the belt-type main body 5 is shown in FIG.

On the other hand, in FIG. 2, 30R is an angle detector for the right arm, 30L
Is an angle detector for the left arm. These are also grip 1R, 1
Similar to L, since they are configured to be bilaterally symmetrical to each other, only the angle detector 30R for the right arm will be described below, and the reference symbol R of each part is read as L to obtain the angle detector 1L for the left arm. Will be used instead of the explanation.

As shown in FIG. 3, the angle detector 30R is attached to a supporter-like attachment 33 to be attached to the player's right arm via surface fasteners 31 and 32. That is, the male hook-and-loop fastener 31 is adhered to the angle detector 30R, and the female hook-and-loop fastener 32 is adhered to the mounting tool 33.
The angle detector 30R is detachable from the mounting tool 33.
In addition, the angle detector 30R, as shown in FIG.
5 and two mercury switches Ra and Rb mounted in the case 35. Each mercury switch Ra and Rb
Are arranged at an angle of 45 degrees with respect to the reference line SL. As shown in FIG. 5, each mercury switch Ra, Rb encloses mercury 37 in a glass tube 36 whose both ends are closed, and a pair of electrodes 38a, 38a,
38b is inserted inside, and in the state shown in the figure, the electrodes 38a and 38b are in a non-conductive state, and when turned in the arrow direction from this state, the electrodes 38a and 38b are in a conductive state. . When the angle detector 30R having such a configuration is rotated about the reference point O from the state shown in FIG. 4 in the direction of arrow A or B (up and down), each mercury switch Ra, R is moved.
b turns on / off sequentially. That is, in the state where the reference line SL is parallel to the ground (the state shown in FIG. 4), the mercury switch Ra is on and the mercury switch Rb is off. From this state, the reference point O is centered in the direction of arrow A. When turning to 45 degrees or more, both mercury switches Ra and Rb are turned on. vice versa,
When it turns 45 degrees or more in the direction of arrow B, the mercury switches Ra, Rb
Are both off. And these mercury switches Ra, Rb
The ON / OFF signal of is once introduced into the grip 1R via the cable 39R and then introduced into the main body 5 via the cable 3R.

Next, referring to FIG. 1, the mercury switch R of the angle detector 30R
One ends of a and Rb are commonly connected and guided to the grip 1R via the cable 39R, and the piezoelectric elements SR _{1 to} S in the grip 1R are connected.
It is commonly connected together with each end of R ₇ , and is further guided to the main body 5 via the cable 3R and then grounded. On the other hand, the other ends of the pressure sensors SR _{1 to} SR ₇ are guided to the main body 5 via the cable 3R and pulled up by the pull-up resistor r, and connected to the key-on / touch detection circuits 6R _{1 to} 6R ₇ , respectively. Has been done. Further, the other ends of the mercury switches Ra and Rb are led into the grip 1R via the cable 39R, further led to the main body 5 via the cable 3R, and pulled up by the pull-up resistor r, respectively. Each of them is connected to a multiplexer 12 described later.

Key-on / touch detecting circuits 6R ₁ ~6R _7, each pressure sensor SR
_This is a circuit that outputs a key-on signal KON, initial touch data ITD, and after-touch data ATD, based on the detection voltages supplied from _{1 to} SR ₇ . Here, the key-on signal KON is output when the pressing force applied to each of the pressure sensors SR _{1 to} SR ₇ becomes equal to or greater than a predetermined strength, and the initial touch data ITD is output from each of the pressure sensors SR _{1 to} SR ₇ . It is data obtained in response to the touch at the beginning of pressing, that is, the changing speed of the pressing force at the moment of pressing, and the after-touch data ATD is used for each pressure sensor SR _{1 to} SR.
_The data corresponds to the continuous change in the pressing force until the end of pressing ₇ .

The key-on / touch detection circuits 6R _{1 to} 6R ₇ are composed of an A / D converter 7, a comparison circuit 8, a delay circuit 9, an AND gate 10, and a register 11. A / D converter 7
Is for converting the detection voltage supplied from each of the pressure sensors SR _{1 to} SR ₇ into digital detection voltage data VD of a predetermined bit, and the transmission voltage data VD obtained by this is output as after-touch data ATD. To do. Comparison circuit 8
Is the detected voltage data VD output from the A / D converter 7.
Is compared with the reference voltage data Vref, and when it becomes VD / Vref, its output is set to the “H” level. The output of the comparison circuit 8 is supplied to one input terminal of the AND gate 10 and, after being delayed by the delay circuit 9 for a predetermined time T,
It is supplied to the other input terminal of the AND gate 10. Therefore, when a predetermined time T elapses after VD / Vref, the output of the AND gate 10 becomes "H" level, and this "H" level output is output as the key-on signal KON. The output of the delay circuit 9 is also supplied to the load terminal L of the register 11.
When the output of is raised to the “H” level, the detection voltage data VD output from the A / D converter 7 is latched, and the latched data is output as the initial touch data ITD.

Here, the reason why the data latched by the register 11 becomes the initial touch data ITD at the time when the predetermined time T elapses after becoming VD / Vref will be described with reference to FIG.

FIG. 8 is a graph showing the relationship between the pressing force applied to the piezoelectric elements of the pressure sensors SR _{1 to} SR ₇ and the resistance value thereof. In this figure, when the pressing force reaches P ₀ , the resistance value becomes Rr.
It becomes ef, and the detection voltage VD described above becomes equal to the reference voltage Vref. Then, when the pressing force is applied with a relatively weak touch, that is, when the changing speed of the pressing force is slow, the pressing force becomes P ₁ and the resistance value becomes Rinit ₁ when the predetermined time T elapses. On the other hand, when the pressing force is applied with a relatively strong touch, that is, when the changing speed of the pressing force is fast, the pressing force becomes P ₂ (> P ₁ ) and the resistance value becomes Rinit ₂ (<Rinit ₁ ). Thus, after the pressing force exceeds P ₀ , the predetermined time T
The resistance value of the piezoelectric element at the time when has passed is determined according to the strength of the touch, and if the touch is strong, the resistance value is
It becomes Rinit ₂ , and if the touch is weak, the resistance value becomes Rinit ₁ . Since the detected voltage data VD output from the A / D converter 7 corresponds to the resistance value of the piezoelectric element in each pressure sensor SR _{1 to} SR ₇ , this detected voltage data VD is latched by the register 11. By this, the initial touch data
ITD is obtained.

The key-on / touch detection circuits 6R _{1 to} 6R ₇ having the above-mentioned configuration are
The right-hand grip 1R is provided for each pressure sensor SR _{1 to} SR ₇ , but the key-on / touch detection circuits 6L _{1 to} 6L _{7 that} have exactly the same configuration as these are the left-hand grip 1L.
The pressure sensors SL _{1 to} SL ₇ are provided respectively. These key-on / touch detection circuits 6R _{1 to} 6R ₇ , 6L
Key-on signal KON, initial touch data ITD, and after touch data ATD output from _{1 to} 6L ₇ , respectively
Are supplied to the multiplexer 12.

Multiplexer 12, based on the channel select signal CS supplied to its select terminal, a key-on signal KON and initial-touch data ITD which are each outputted from the key-on / touch detecting circuits _{6R 1 ~6R 7, 6L 1 ~6L} 7 ON / OFF signal (hereinafter referred to as angle data) output from any one set of data consisting of after touch data ATD or mercury switches Ra, Rb, La, Lb in angle detectors 30R, 30L.
Is selected and output. Further, 14 is a CPU (central processing unit), and 16 is an R in which a program used by the CPU 14 is stored.
OM (Read Only Memory), 17 is a RAM (Random Access Memory) used as a work area. CPU14
Changes the channel select signal CS supplied to the multiplexer 12 in sequence, and the key-on / touch detection circuit 6R ₁
Output data of ~ 6R ₇ , 6L ₁ ~ 6L ₇ and mercury switch Ra, R
The angle data output from b, La, Lb is scanned at high speed, and the key-on signal KON, initial touch data ITD, after-touch data ATD, and angle data obtained by this are sequentially transferred to RAM17, and the transferred data is transferred. Key code data KC for specifying pitch based on
And volume data VOL for designating the volume and tone designating data TD for designating the tone color. The key-on signal KON, the key code data KC, the volume data VOL, and the tone color designation data TD are collectively referred to as tone control data MCD.

Reference numeral 18 denotes an operation unit, which is composed of a push switch (see FIG. 7) and a coder which encodes the output of the operated push switch and outputs it to the CPU 14. 19
Is an LCD (liquid crystal) display (see FIG. 7), 20 is a carrier wave on which the tone control data MCD supplied from the CPU 14 is placed, and the antenna 2
The trasmitter that sends from 0a, 21 is a MIDI (Musical Instrument
ment Digital Interface) standard data and outputs it to the outside via the output terminal 21a.

Next, the operation of the musical sound generation control device having the above-described configuration will be described.

First, when performing a performance, the player mounts the belt-type main body 5 on the waist as shown in FIG. 6, and attaches the connectors 4R, 4L at the tips of the cables 3R, 3L extending from the grips 1R, 1L to the main body 5. If you want to connect to the 5R and 5L connectors (see Fig. 7) and drive the musical tone generator by wire, output terminal 21a
And the tone generator with a connecting cable. Then, the main body 5 mounted on the waist and the power of the musical tone generating device are turned on. Then, the push switch of the operation unit 18 is operated to specify wired / wireless (data transmission method to the musical sound generating device), and the pressure sensors SR _{1 to} SR ₇ and SL _{1 of the} grips 1R and 1L. ~ SL ₇ and function assignments to the mercury switches Ra, Rb, La, and Lb of the angle detectors 30R and 30L are performed.

Here, as shown in FIG. 9, the strength of key-on and touch is designated based on the outputs of the pressure sensors SR _{1 to} SR ₄ in the flip 1R for the right hand, and the outputs of the pressure sensors SR _{5 to} SR ₇ are designated. Based on the volume level, vibrato intensity, wah wah presence / absence, the 1st octave to 4th octave are output based on the outputs of the pressure sensors SL _{1 to} SL ₄ in the left-hand grip 1L. The tone color is specified based on the outputs of the pressure sensors SL _{5 to} SL ₇ , and the angle detector 30R,
Based on the combination of ON / OFF of the mercury switches Ra, Rb, La, Lb in 30L, the scales C ⁿ , D ⁿ , ..., B ⁿ , C ^{n + 1} , D ^{n + 1} are specified. , Each function shall be assigned. Assignment of each of these functions can be arbitrarily set by the performer by operating the push switch of the operation unit 18.

Next, the performer attaches the angle detectors 30R and 30L to the left and right arms via the attachments 33, holds the grip 1R with the right hand and the grip 1L with the left hand, and gives an instruction to start the operation unit 18. Operate the push switch to start playing. After that, the CPU 14 uses the key-on / touch detection circuits 6R _{1 to} 6R ₇ and 6L ₁
6L _{7 The} key-on signal KON, initial touch data ITD, after-touch data ATD, and angle data obtained from the angle detectors 30R and 30L are sequentially transferred to the RAM 17, and the tone control data is based on this transferred data. MC
D is created, and the created tone control data MCD is set to the midi circuit 21
Output to. MIDI circuit 21 is the supplied tone control data
The MCD is converted into data of the MIDI standard and supplied to the output terminal 21a, and the data output from the output terminal 21a is supplied to the external musical sound generation device via the connection cable. As a result, in the musical tone generating device, a musical tone based on the supplied MIDI standard data is formed, and is emitted as a musical tone from the speaker.

In this case, each pressure sensor SR ₁ ~ SR ₇ , SL _{1 of} grip 1R, 1L
~ SL ₇ and angle detectors 30R, 30L mercury switches Ra, Rb, La, L
Since each function is assigned to b as shown in FIG. 9, for example, as a state in which both arms are spread horizontally (a state in which mercury switches Ra and La are turned on as shown in FIG. 4) The scale “G ⁿ ” is specified, the pressure sensor SL ₁ is pressed with the left thumb to specify the “first octave”, the pressure sensor SL ₇ is pressed with the left little finger to specify the “saxophone”, and in this state, the right hand When the pressure sensor SR ₁ is pressed with the thumb, a musical tone of the scale G ¹ is emitted from the musical tone generating device with a touch corresponding to the degree of pressing (strength) and with a sax tone color. Then, when you press the pressure sensor SR ₃ with your right index finger, a touch corresponding to the degree of pressing produces a tone that is a semitone higher than the scale G ^1, and when you press the pressure sensor SL ₄ with your right index finger, it corresponds to that. With the touch, a tone that is a semitone lower than the scale G ¹ is produced. Also, pressing the pressure sensor SR ₅ with the middle finger of the right hand changes the volume depending on the degree of pressing, and pressing the pressure sensor SR ₆ with the ring finger of the right hand changes the vibrato strength.
Furthermore, pressing the pressure sensor SR ₇ with the little finger of the right hand gives a wah-wah effect.

In this case, if the pressure sensors SL _{1 to} SL ₄ for specifying the octave and the pressure sensors SL _{5 to} SL ₇ for specifying the tone color are pressed, the CPU 14 makes the specification during the period in which they are pressed. Judge as valid. The pressure sensors SL _{1 to} SL ₄ and SL
_This setting may be retained once _{5 to} SL ₇ are pressed.

If "wireless" is selected as the transmission method to the tone generator, the tone control data MCD is transmitted to the transmitter 2
Supplied to 0. Further, the LCD display 19 displays the operation content of the operation unit 18 and the like.

[Effect of Device] As described above, the musical sound generation control device according to the present invention controls the musical sound generation device by the pressing force of each fingertip of the hand holding the member, the combination of the pressing fingers, and the swing-up angle of the arm. Therefore, it is possible to obtain the effect that the music performance can be performed by the novel performance method which is completely different from the conventional performance mode. In addition, since the musical tone of the pitch corresponding to the movement angle of the human body part (for example, the swing-up angle of the arm) is generated in a mode based on the pressing force detected when the pressing force of each fingertip is detected, the generated musical tone is It becomes versatile and easy to perform accurate.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall construction of an embodiment of the present invention, and FIG. 2 is a grip 1R, 1L and an angle detector 30 of the same embodiment.
FIG. 3 is a perspective view showing an external configuration of the R and 30L, FIG. 3 is a perspective view showing a mounting example of the angle detector of the same embodiment, and FIG. 4 is a front sectional view showing an internal configuration of the angle detector of the same embodiment. FIG. 5 is a front view showing the configuration of a mercury switch which constitutes the angle detector of the same embodiment, FIG. 6 is a front view showing a usage example of the same embodiment, and FIG. 7 is a belt type main body of the same embodiment. 8 is a perspective view showing the external configuration of FIG. 8, FIG. 8 is a graph showing the characteristics of the pressure sensor used in the same embodiment, and FIG. 9 is each pressure sensor SR in the same embodiment.
_{1 ~SR 7,} SL _{1 ~SL 7} and the mercury switch Ra, Rb, La, a diagram illustrating a functional allocation example for Lb. 1R …… Grip for right hand, 1L …… Grip for left hand, SR
₁ ~ SR ₇ ... Pressure sensor (pressing force detection means), SL ₁ ~ SL ₇ ...
... pressure sensor (pressing force detecting means), 5 ... main body (musical sound control data generating means). 30R: Angle detector for right arm, 30L
...... Left arm angle detector, Ra, Rb …… Mercury switch (angle detection means), La, Lb …… Mercury switch (angle detection means).

Claims (1)

[Scope of utility model registration request] 1. A pressing force detection means that is incorporated in a member that can be gripped with one hand and that outputs a signal corresponding to the pressing force applied by each fingertip of the hand holding the member, and that corresponds to the swing-up angle of the arm. And an output signal of the pressing force detecting means for outputting a musical tone having a pitch corresponding to the output signal output from the angle detecting means when the pressing force detecting means detects the pressing force. And a tone control data generating means for generating tone control data for controlling the tone generator so that the tone generator is generated in a manner based on the above.