JP2522908Y2 - Musical sound generation control device - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a musical tone that can control the generation of musical tones in accordance with the bending motion of the joint and the pressing motion of the fingertip, such as the swinging motion of the player's arm. The present invention relates to a generation control device.

2. Description of the Related Art As is well known, in electronic keyboard musical instruments, a player operates a keyboard and various operation switches with his / her hands to generate necessary pitches and timbres to play music. I have.

"Problems to be solved by the invention" By the way, in the above-mentioned conventional electronic keyboard instrument,
Other than pressing a key with a hand or foot, it is not possible to specify a pitch or the like, and the music playing method is limited.

Accordingly, an object of the present invention is to provide a musical tone generation control device capable of controlling a musical tone by a bending motion of a joint such as a swinging motion of a player's arm and a pressing motion of a fingertip.

"Means for solving the problem" This invention is incorporated in a member having a shape that can be gripped with one hand, and outputs a signal corresponding to a pressing force applied by each fingertip of the hand holding the member. Pressing force detecting means, angle detecting means for outputting a signal corresponding to the bending angle of the joint, based on the output signal of the pressing force detecting means,
A tone control data generating means for generating tone control data for controlling a tone generating device to generate a tone having a tone characteristic determined by an output signal of the angle detecting means; Among them, a specific pressing force detecting means is used for inputting predetermined musical tone control parameters such as key-on timing and touch information, and at least one pressing force detecting means other than the specific pressing force detecting means is used for tone color setting. It is characterized by:

[Operation] According to the above configuration, the tone generator can be controlled by the combination of the pressing condition of each fingertip of the hand holding the member and the pressing finger, and the bending angle of the joint caused by swinging up the arm. A wide variety of musical sounds can be generated by the swinging-up operation of the player's arm and the pressing operation of each fingertip. Further, in this case, since a tone having a tone characteristic determined by the output signal of the angle detecting means is generated based on the output signal of the pressing force detecting means, the operation load on the finger is reduced. Input and tone setting can be performed by pressing different fingers, respectively, which makes it possible to change the tone characteristics of the generated tones in a wide variety of easy operations, and to achieve a sophisticated and expressive performance. It becomes possible.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

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

First, the configuration 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. Since these are configured so as to be left-right symmetrical, only the grip 1R for the right hand will be described below. Accordingly, the description of the left hand grip 1L may be replaced.

In the grip 1R for the right hand, 2R is a case of a shape that can be gripped by the right hand, and in this case 2R, when grasped with the right hand, it closely adheres to the base between the thumb and the index finger so that it fits into the hand A curved surface 2Ra is formed, and a locking portion 2Rb is formed between the ring finger and the middle finger so as not to come off from the gripped hand (see FIG. 6). Furthermore, seven of the pressure sensor SR ₁ to SR ₇ is incorporated in the case 2R. Each of these pressure sensors SR ₁ to SR ₇ are each from a push button, which is provided to freely project and retract in case 2R, a piezoelectric element resistivity changes in response to the pressing force applied via the pushbutton It is configured.

Here, explaining the arrangement of the pressure sensor SR ₁ to SR _7. Pressure sensor SR ₁ to SR _7, when gripping the grip 1R in the right hand, by its five fingertips are respectively disposed easily depressible positions, the pressure sensor SR _1, SR ₂ is depressible by the thumb Pressure sensor SR
₃ and SR ₄ are arranged vertically at positions that can be pressed by the index finger, and the pressure sensors SR ₅ , SR ₆ and SR ₇ are arranged vertically at positions that can be pressed by the middle finger, ring finger and little finger, respectively. ing. By adopting such arrangement, five fingers of one hand, can be operated without difficulty seven pressure sensors SR ₁ to SR _7.

When the pressure sensor SR ₁ to SR ₇ is pressed by finger, the pressing force in the interior of the piezoelectric element acts, so that its resistance value changes. Each of these pressure sensors
SR ₁ to SR ₇ via the cable 3R and connectors 4R, as shown in FIG. 6, is connected belt type body attached to the waist of the player (the musical tone control data generating means) 5. FIG. 7 shows the external configuration of the belt-type main body 5.

On the other hand, in FIG. 2, 30R is an angle detector for the right arm, 3R
0L is an angle detector for the left arm. These are also grip 1
Similar to R and 1L, they are configured to be left-right symmetric with each other. Hereinafter, only the right-arm angle detector 30R will be described. It shall be replaced with the description of the container 1L.

As shown in FIG. 3, the angle detector 30R includes a hook-and-loop fastener 31 attached to a supporter-like attachment 33 attached to the player's right arm.
And mounted through 32. That is, a male hook-and-loop fastener 31 is mounted on the angle detector 30R, and a female hook-and-loop fastener 32 is mounted on the mounting tool 33, whereby the angle detector 30R is detachable from the mounting tool 33. Has become. As shown in FIG. 4, the angle detector 30R includes a case 35 and two mercury switches Ra and Rb mounted in the case 35.
a and Rb are arranged at an angle of 45 degrees with respect to the reference line SL. Each of the mercury switches Ra and Rb has a glass tube 36 sealed at both ends, as shown in FIG.
38a and 38b are inserted inside.In the state shown in the figure, the electrodes 38a and 38b are in a non-conductive state, and when turned in the direction of the arrow from this state, the electrodes 38a and 38b are in a conductive state. Becomes When the angle detector 30R having such a configuration is rotated from the state shown in FIG. 4 around the reference point O in the direction of the arrow A or B (vertically), each mercury switch is turned on.
Ra and Rb are sequentially turned on / off. 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, when the user turns the reference point O about 45 degrees in the direction of arrow A, both the mercury switches Ra and Rb are turned on. Conversely, when the switch is turned by 45 degrees or more in the direction of arrow B, the mercury switch R
a and Rb are both turned off. And these mercury switches R
The on / off signals of a and Rb are once guided into the grip 1R via the cable 39R, and then guided into the main body 5 via the cable 3R.

Next, in FIG. 1, the mercury switches Ra angle detector 30R, each end of Rb are commonly connected, is guided to the grip 1R via the cable 39R, the piezoelectric element SR ₁ in the grip 1R
~ Connected together with one end of SR ₇ and cable 3R
And then grounded. on the other hand,
The other ends of the pressure sensor SR ₁ to SR ₇ is guided to the main body 5 via the cable 3R, with are each pulled up by the pull-up resistors r, are respectively connected to the key-on / touch detecting circuits 6R ₁ ~6R ₇ I have. The other ends of the mercury switches Ra and Rb are guided into the grip 1R via the cable 39R, further guided to the main body 5 via the cable 3R, and pulled up by a pull-up resistor r. Each is connected to a multiplexer 12 described later.

Key-on / touch detecting circuits 6R ₁ ~6R _7, each pressure sensor
Based from SR ₁ to SR ₇ on the detection voltage are respectively supplied, a circuit for outputting a key-on signal KON, initial-touch data ITD, and after-touch data ATD. here,
Key-on signal KON is outputted when the pressure applied to the pressure sensor SR ₁ to SR ₇ is equal to or greater than a predetermined strength, also,
Initial touch data ITD, each pressure sensor SR ₁ to SR ₇
Is the data obtained in accordance with the touch at the start of pressing, that is, the changing speed of the pressing force at the moment of pressing, and the after touch data ATD includes the pressure sensors SR _{1 to} SR
_This is data corresponding to the continuous change of the pressing force until the end of pressing of No. ₇ .

Key-on / touch detecting circuits 6R ₁ ~6R ₇ is, A / D converter 7, the comparing circuit 8, a delay circuit 9 is constituted by an AND gate 10, and a register 11. A / D converter 7, the detection voltage is respectively supplied from the pressure sensor SR ₁ to SR ₇ and converts the detected voltage data VD of a predetermined bit of the digital, after the detection voltage data VD obtained by this Output as touch data ATD. in this case,
As shown in FIG. 8, the pressing force applied to the piezoelectric element in each pressure sensor SR ₁ to SR ₇ is enough to be large, the resistance value is output small, and the from the pressure sensor SR ₁ to SR ₇ Since the detection voltage becomes small, the A / D converter 7 inverts each bit of the converted data and outputs it as detection voltage data VD.
The comparison circuit 8 compares the detected voltage data VD output from the A / D converter 7 with the reference voltage data Vref,
, The output is set to “H” level. The output of the comparison circuit 8 is supplied to one input terminal of the AND gate 10 and is also supplied to the other input terminal of the AND gate 10 after being delayed by a predetermined time T via the delay circuit 9.
Therefore, when a predetermined time T elapses after VD / Vref, the output of the AND gate 10 becomes “H” level,
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, and the register 11 outputs the signal from the A / D converter 7 when the output of the delay circuit 9 rises to "H" level. Latch the detection voltage data VD
The latched data is output as initial touch data ITD.

Here, the reason why the data latched by the register 11 becomes the initial touch data ITD when a predetermined time T has elapsed after the VD / Vref has been reached will be described with reference to FIG.

Figure 8 is a pressing force applied to the piezoelectric element of the pressure sensor SR ₁ to SR _7, is a graph showing the relationship between the resistance value.
In this figure, when the pressing force becomes P _0, the resistance value of
Rref, and the above-described detection voltage VD becomes equal to the reference voltage Vref. Then, when pressure is applied with a relatively weak touch, that is, when the rate of change of pressure is slow, at the time when the predetermined time T has elapsed, the pressing force becomes P _1, the resistance value is Rinit _1. Conversely, when the pressing force is applied with a relatively strong touch, that is, when the changing speed of the pressing force is fast, at the time when the predetermined time T has elapsed, the pressing force becomes P ₂ (> P ₁ ) and the resistance value becomes Rinit ₂ (<Rinit ₁ ). As described above, after the pressing force exceeds P ₀ , the predetermined time T
The resistance value of the piezoelectric element at the time when elapses depends on the strength of the touch, and if the touch is strong, the resistance value is
Rinit _{2 and the} resistance value is Rinit ₁ if the touch is weak. Then, the detection voltage data VD output from the A / D converter 7, since then corresponds to the resistance value of the piezoelectric element in each pressure sensor SR ₁ to SR _7, latches the detected voltage data VD in the register 11 The initial touch data
ITD is obtained.

The structure described above key-on / touch detecting circuits 6R ₁ ~6R
₇ is provided each corresponding to each pressure sensor SR ₁ to SR ₇ grip 1R for the right hand, the key-on / touch detecting circuits 6L ₁ ~6L ₇ of exactly similar arrangement, for the left hand It is provided each corresponding to each pressure sensor SL ₁ to SL ₇ grip 1L. These key-on / touch detecting circuits 6R ₁ to 6
The key-on signal KON, the initial touch data ITD, and the after touch data ATD output from R ₇ , 6L _{1 to} 6L ₇ 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 One set of data consisting of after touch data ATD or an on / off signal (hereinafter referred to as angle data) output from mercury switches Ra, Rb, La, Lb in angle detectors 30R, 30L. Select and output. Reference numeral 14 denotes a CPU (Central Processing Unit), 16 denotes a ROM (Read Only Memory) storing programs used by the CPU 14, and 17 denotes a RAM (Random Access Memory) used as a work area. CPU14 sequentially changing the channel select signal CS supplied to the multiplexer 12 is output the output data and the mercury switch Ra key-on / touch detecting circuits _{6R 1 ~6R 7, 6L 1 ~6L} 7, Rb, La, from Lb Scans the angle data at high speed and transfers the resulting key-on signal KON, initial touch data ITD, after touch data ATD, and angle data to the RAM 17 sequentially, and specifies the pitch based on the transferred data Key data KC, volume data VOL for specifying the volume, and timbre specification data TD for specifying the timbre. 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.

An operation unit 18 includes a push switch (see FIG. 7) and a coder for encoding the output of the operated push switch and outputting it to the CPU 14. 1
Reference numeral 9 denotes an LCD (liquid crystal) display (see FIG. 7), reference numeral 20 denotes a transmitter which transmits the tone control data MCD supplied from the CPU 14 on a carrier wave and transmits from the antenna 20a, and reference numeral 21 denotes the tone control data MCD supplied from the CPU 14. MIDI (Musical Inst
rument Digital Interface) is a MIDI circuit that converts the data into 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 configuration will be described.

First, when performing, the player wears the belt-type main body 5 on the waist as shown in FIG. 6 and attaches the connectors 4R and 4L at the tips of the cables 3R and 3L extending from the grips 1R and 1L.
Output connectors 21R and 5L (see FIG. 7).
Connect a to the tone generator with a connection cable. Then, the main body 5 attached to the waist and the power of the musical sound generator are turned on. Then, by operating the push switch of the operation unit 18, to specify the wired / wireless another (data transmission method to the musical tone generating apparatus), also grip 1R, the pressure of 1L sensor SR ₁ ~SR _7, SL ₁ and to SL _7, the angle detector 30R, mercury switches Ra of 30L, Rb, La, a function assignment for Lb performed.

Here, as shown in FIG. 9, the grip 1R for the right hand is used.
Based on the output of the pressure sensor SR ₁ to SR ₄ of the inner, key-on and touch intensity is specified, based on the output of the pressure sensor SR ₅ to SR _7, large and small volume, and vibrato intensity, the presence or absence of wah tone but is specified, also based on the output of the pressure sensor SL ₁ to SL ₄ in the grip 1L for the left hand, the first octave to fourth octaves specified, based on the output of the pressure sensor SL ₅ to SL ₇ Is specified, and the angle detector 30
Based on the on / off combinations of the mercury switches Ra, Rb, La, Lb in R, 30L, the scales C ⁿ , D ⁿ ,. B ⁿ , C ^{n + 1} , D ^{n + 1}
Each function is assigned so that is designated.
The assignment of these functions can be arbitrarily set by the player by operating the bush switch of the operation unit 18.

Next, the player attaches the angle detectors 30R and 30L to the left and right arms via the attachment 33, respectively, and holds the grip 1R with the right hand and the grip 1L with the left hand to instruct the start of the operation unit 18. Operate the push switch to start playing. Later, CPU 14 is key-on / touch detecting circuits 6R ₁ ~6R _7, 6L ₁
6L The key-on signal KON obtained from ₇ , the initial touch data ITD, the after touch data ATD, and the angle data obtained from the angle detectors 30R and 30L are sequentially transferred to the RAM 58, and based on the transferred data, the tone control data MC
D and create the tone control data MCD
Output to The MIDI circuit 21 receives the supplied tone control data.
The MCD is converted into MIDI standard data and supplied to an output terminal 21a, and the data output from the output terminal 21a is supplied to an external tone generator via a connection cable. Thus, in the tone generator, a tone based on the supplied MIDI standard data is formed and emitted from the speaker as a tone.

In this case, the grip 1R, the pressure of 1L sensor SR ₁ to SR _7, S
L ₁ to SL ₇ and the angle detector 30R, mercury switches Ra of 30L, Rb, L
Since each function is assigned to a and Lb as shown in FIG. 9, for example, a state where both arms are spread horizontally (a state where mercury switches Ra and La are turned on as shown in FIG. 4) )
Scale “G ⁿ ” as the pressure sensor SL ₁ with the left thumb
To specify "1st octave", press the pressure sensor SL ₇ with the little finger of the left hand to specify "sax", and then, in this state, press the pressure sensor SR ₁ with the thumb of the right hand. a touch corresponding to, and in tone saxophone tone of the scale G ¹ is generated from the musical tone generating apparatus.
Subsequently, when the pressure sensor SR ₃ is pressed with the right forefinger, a tone corresponding to the degree of the press produces a tone that is a semitone higher than the scale G ^1, and when the pressure sensor SL ₄ is pressed with the right forefinger, the corresponding sound is generated. in the touch, semitone lower tone is emitted than scale G ^1. In addition, pressure sensor SR ₅ in the right hand middle finger
When you press, the volume is changed by the press condition, vibrato of intensity is changed by pressing the pressure sensor SR ₆ with the right hand ring finger, further, wah-wah effect is attached and press the pressure sensor SR ₇ with the right hand little finger.

In this case, CPU 14 is a pressure sensor SL ₁ to SL ₄ for octave designation and the pressure for the tone color designated sensor SL ₅ to SL ₇
When is pressed, it is determined that the designation is valid during the period in which these are pressed. The pressure sensor SL ₁ to SL ₄ and
This designation may be retained once SL _{5 to} SL ₇ are pressed.

Here, when “wireless” is selected as the transmission method to the tone generator, the tone control data MCD is supplied to the transmitter 20. The LCD display 19 also includes an operation unit 18
Is displayed.

Next, another embodiment of the present invention will be described with reference to FIG. In this figure, only the function assignment to the pressure sensor SL ₅ to SL _7, other assignments for each pressure sensor or the like is the same as the case shown in Figure 9.

In this embodiment, as described above embodiment (see FIG. 9), rather than assigning advance three tones to the three pressure sensors SL ₅ to SL ₇ (piano, flute, saxophone), 8 Tone number 0 for specifying the type of tone (piano, flute, trumpet, ..., saxophone)
7-determined in advance, and is configured to be arbitrarily specified using the respective tone number 0-7 three pressure sensors SL ₅ to SL _7. Then, a program necessary for realizing a tone color designation function described later is newly added in the ROM 16. That, CPU 1 in response to the arrival of the key-on signal KON based on the output of the pressure sensor SL _5, a tone number storage area in the RAM 17, and sets a specific tone (e.g., a trumpet) timbre number corresponding to "2" Each time the key-on signal KON based on the output of the pressure sensor SL ₆ arrives, the tone number set in the tone number storage area is incremented by one, and further, the key-on signal KON based on the output of the pressure sensor SL ₇ is increased. Is reached, the tone number set in the tone number storage area is decremented by one. Thus, each time to press the pressure sensor SL ₆ with the left hand ring finger, data of tone color number storage area is 0 → 1 → 2 → ... → 7 → 0 circulation varies with, also, the left hand pressure sensor SL ₇ Every time the finger is pressed, the data in the tone number storage area is changed from 7 → 6 → 5
... → 0 → 7 in a cyclical manner, and the timbre emitted from the speaker sequentially changes accordingly. Also a pressure sensor
When SL ₆ and SL ₇ are pressed at the same time, the data in the tone number storage area is set to the initial value, that is, “0”.

Incidentally, the assignment of functions to each pressure sensor SR ₁ to SR ₇ and SL ₁ to SL ₇ or the like, not limited to the embodiments described above, by the player operates the push switch of the operation unit 18, it can be set arbitrarily It is. Further, the angle detectors 30R and 30L that detect the swing angle of the arm are not limited to those using the mercury switches Ra, Rb, La, and Lb described above, and the bending angles of the elbow joints using a variable resistor or a rotary encoder. May be detected.

"Effects of the invention" As described above, the musical sound generation control device according to the invention depends on the degree of pushing of each fingertip of the hand holding the member, the combination of the pushing fingers, and the bending angle of the joint such as the swinging angle of the arm. Since the tone generator can be controlled, a tone performance can be performed by a new performance method completely different from the conventional performance mode, and in particular, based on the output signal of the pressing force detector, the angle Since a tone having a tone characteristic determined by the output signal is generated to reduce the operation load of the finger, a specific pressing force detecting means among a plurality of pressing force detecting means is provided with a predetermined pressing force such as key-on timing and touch information. It can be used for tone control parameter input, and at least one of the pressing force detecting means other than the specific pressing force detecting means can be used for tone color setting. Since the input of the key-on timing and the like and the setting of the tone can be performed by the pressing operation of different fingers, the tone characteristics of the generated tone can be variously changed by an easy operation. Thus, an effect that a performance with rich expressiveness becomes possible is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing grips 1R and 1L and an angle detector 30 of the embodiment.
FIG. 3 is a perspective view showing an example of mounting the angle detector of the embodiment, FIG. 4 is a front sectional view showing the internal configuration of the angle detector of the embodiment, FIG. 5 is a front view showing a configuration of a mercury switch constituting the angle detector of the embodiment, FIG. 6 is a front view showing an example of use of the embodiment, and FIG. 7 is a belt-type main body of the embodiment. FIG. 8 is a graph showing characteristics of a pressure sensor used in the embodiment, and FIG. 9 is a view showing each pressure sensor SR in the embodiment.
_{1 ~SR 7,} SL _{1 ~SL 7} and the mercury switch Ra, Rb, La, shows a functional allocation example for Lb, FIG. 10 is a diagram showing a modification of the functional allocation according to another embodiment of this invention is there. 1R …… Right hand grip, 1L …… Left hand grip, SR
_{1 to} SR ₇ ... Pressure sensor (pressing force detecting means), SL _{1 to} SL ₇ ...
... pressure sensor (pressing force detecting means), 5 ... body (musical sound control data generating means). 30R …… Angle detector for right arm, 30L
…… Angle detector for left arm, Ra, Rb… Mercury switch (angle detection means), La, Lb… Mercury switch (angle detection means).

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of pressing force detecting means incorporated in a member having a shape that can be gripped by one hand and outputting a signal corresponding to a pressing force applied by each fingertip of a hand holding the member; An angle detecting means for outputting a signal corresponding to an angle; and, based on an output signal of the pressing force detecting means, controlling a musical sound generating device to generate a musical sound having a musical sound characteristic determined by the output signal of the angle detecting means. And a tone control data generating means for generating tone control data of a plurality of the pressing force detecting means, wherein a specific pressing force detecting means is used for inputting predetermined tone control parameters such as key-on timing and touch information. A tone generation control device, wherein at least one pressing force detecting means other than the specific pressing force detecting means is used for tone color setting.