JPS6355717B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to various physical movements of humans, such as walking, running, jumping, arm swinging, etc., as well as dancing, volleyball, dance, etc. The present invention relates to a musical sound generation control method for generating musical tones in a controlled manner, such as a musical scale, depending on various displacement states.

[Prior Art] As a well-known musical sound generation control method, a human selects one of a plurality of strings, for example, on a guitar or violin, and moves the selected string with a finger to one of a plurality of frets. At the same time, the string is mechanically vibrated by pressing the selected string with a finger or rubbing a bow against the selected string, thereby controlling the generation of a musical sound with a pitch corresponding to the string and fret. ing. Other well-known musical sound generation control methods include mechanically or electrically detecting a key or key switch pressed by a human finger, such as in a piano or an electronic organ;
Based on the detection results, the strings are vibrated or musical tones are electrically synthesized to control the generation of musical tones with pitches corresponding to the pressed keys or key switches.

Furthermore, as other conventional techniques, there is
As shown in Publication No. 24822, the front end of the sole,
Switches are disposed on the rear end, left side, and right side, and a musical sound generator that generates musical sounds of pitches corresponding to the respective switches is built into the shoe, so that a person can cover the shoe. There is also a device in which one of the switches is pressed against the ground or floor by moving one's foot, and by closing the pressed switch, the generation of a musical tone of a pitch corresponding to the switch is controlled.

[Problems to be Solved by the Invention] However, in the above-mentioned prior art, the pitch of a musical tone, which is one of the musical tone generation modes (musical tone elements), is controlled by human actions such as pushing, plucking, and rubbing. However, it is not possible to generate musical sounds corresponding to various human athletic actions such as walking, running, jumping, arm swinging, dancing, ballet, dancing, etc. In other words, in the case of guitars, violins, etc., the instruments themselves are configured to be portable, so it is possible to walk, run, etc. while playing the instrument, but these walking, running, etc. have nothing to do with playing the instrument. To control the musical tone, press the button above.
This is achieved through actions such as plucking, rubbing, etc. that are solely for playing musical instruments. In addition, pianos, electronic organs, etc. also generate musical sounds in response to various human athletic actions such as walking, running, jumping, arm swinging, dancing, ballet, dance, etc. It's completely unrelated.

Furthermore, the device disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 53-24822 merely controls the generation of musical sounds by pressing the soles of the feet against the ground or floor instead of the hands or fingers of the prior art. , the difference is that the hands or fingers are replaced by feet, but it is the same as the conventional case in that musical sounds are generated by the act of pressing. As a result, even in this prior art, the act of pressing the switch for specifying the pitch of a musical tone on the ground or floor is
Gymnastics such as running, jumping, arm swinging, dancing,
It is difficult to directly relate to various human athletic actions such as volleyball, dance, etc., and it is not possible to freely control musical sound generation according to the athletic actions.

The present invention was devised in view of the above-mentioned problems, and its purpose is to freely adapt to various human exercise behaviors such as walking, running, jumping, arm swinging, dancing, volleyball, dance, etc. By controlling the generation of musical tones, we propose a completely new musical sound generation control method that directly connects the human movement behavior and music and allows the enjoyment of both at the same time.

[Means for Solving the Problems] In order to solve the above problems and achieve the object of the present invention, the first structural feature of the invention is to detect a reference point by a detection means carried by a person. electrically detecting the spatial rotational movement of a central part of the body and outputting an electrical signal that changes according to the rotation;
The electric signal is supplied to the musical tone generating means to control the generation of musical tones of a scale corresponding to the rotational position of the part of the body.

Moreover, the structural feature of the second invention is that the distance from the reference point to the detection means is determined by the detection means carried on a part of the human body as the part of the body moves spatially. The apparatus detects the distance electrically, outputs an electric signal that changes according to the distance, and supplies the electric signal to the musical tone generating means to control the manner in which the musical tone is generated.

Furthermore, the configurational feature of the third invention is that the speed of spatial movement of a part of the body is electrically detected by a detection means carried by the person, and an electric signal is generated that changes according to the speed. The present invention is configured to output an electrical signal and supply the electrical signal to a musical sound generating means to control the generation of a musical sound of a scale corresponding to the speed of movement of the body part.

[Operations and Effects of the Invention] In the first invention configured as described above,
When a person performs gymnastics such as walking, running, jumping, swinging arms, dancing, volleyball, dance, etc., a part of the body such as the upper body, centering on the reference points such as joints and hips,
When a hand, arm, leg, etc. is rotated, the spatial rotational movement of that part of the body is detected by a detection means carried on the body. In this case, the detection means electrically detects the rotational movement and outputs an electric signal that changes according to the rotation, so that the detection means obtained from. Then, this electric signal is supplied to a musical tone generating means, and the generating means controls the generation of a musical tone of a scale corresponding to the rotational position of the part of the body according to the electric signal. As a result, according to the first invention, it is possible to obtain a musical tone of a scale that corresponds to the continuous movement of a part of the human body as the same part rotates, so it is possible to obtain a musical tone of a scale corresponding to the continuous movement of the same part as the part rotates. Music directly related to the movement is played along with exercise movements such as gymnastics, dance, volleyball, dance, etc., and when someone else performs the movement while watching the movement, or when the person himself performs the movement. You will be able to enjoy music while listening to music.

Further, in the second invention configured as described above, similarly to the first invention, a human performs gymnastics such as walking, running, jumping, arm swinging, dancing, volleyball, dance, etc. When you move a part of your body, such as your upper body, hand, arm, leg, etc., the distance from a reference point, such as another part of your body or a predetermined position outside your body, changes. As the body part moves spatially, the changed distance is detected by a detection means carried by the body part. In this case, the detection means electrically detects the distance and outputs an electrical signal that changes according to the distance, so
In this case as well, an electrical signal corresponding to continuous movement of a part of the human body is obtained from the detection means. Then, this electric signal is supplied to the musical sound generating means, and the musical sound generating means, for example, the pitch, is controlled according to the electric signal. It becomes possible to obtain musical sounds that correspond to the continuous movement of parts. As a result, in the second invention, as well as in the case of the first invention, in addition to gymnastics such as walking, running, jumping, and arm swinging, as well as exercise movements such as dancing, volleyball, and dance, it is possible to directly perform the movements. The associated music is played, and the user can enjoy the music while watching the movement for another person or while performing the movement for the person himself/herself.

Furthermore, in the third invention configured as described above, as in the case of the first invention, a human performs gymnastics such as walking, running, jumping, arm swinging, dancing, volleyball, dance, etc. When a part of the body, such as the upper body, hands, arms, legs, etc., is moved, the spatial movement speed of the part of the body changes in accordance with the movement, and the speed is detected by the detection means. In this case, the detection means electrically detects the speed and outputs an electric signal that changes according to the speed, so that the electric signal corresponding to continuous movement of a part of the human body is obtained from the detection means. Then, this electric signal is supplied to a musical tone generating means, and the generating means controls the generation of a musical tone of a scale corresponding to the speed of movement of the body part according to the electric signal. As one part of the body moves, a musical tone of a scale corresponding to the continuous movement of the same part can be obtained. As a result, also in the third invention,
As in the case of the first invention, gymnastics such as walking, running, jumping, arm swinging, dancing, volleyball, etc.
Music directly connected to the movement is played along with the movement such as dance, allowing others to enjoy the music while watching the movement, or the person himself/herself to enjoy the music while performing the movement. .

[Example] Examples of the present invention will be described in detail below, but before that, an outline of the present invention common to each example will be explained using the drawings.

The present invention controls the generation of musical sounds in accordance with human exercise movements such as walking, running, jumping, arm swinging, dancing, volleyball, dance, etc. The displacement state of a part of the body associated with a movement is assigned in advance to musical information such as a musical scale,
A musical tone whose pitch is controlled is generated in accordance with the motor movement. In this case, if the movements A, B, and C in Figure 1 are assigned to the pitches "do,""mi," and "so," the human can raise the arm from the bottom to the top.
"Do" along with gymnastics, dance, volleyball, dance, etc.
Musical tones corresponding to the pitches of "mi" and "so" are generated.

First Example First, the reference points (in this case, the shoulder and elbow joints)
A case will be described in which a part of the body (in this case, the arm) is rotated around , and a musical tone is generated in accordance with the rotation. In this case, as shown in FIG. 2, the human 10 holds a detector 20 for detecting a rotation angle in his hand and rotates his arm around his shoulder and elbow.

For example, as shown in FIG. 3, the detector 20 is composed of a spherical ring 21 that can be carried by a person 10, and a support base 22 extending toward the center is fixed on the inner peripheral surface of the ring 21. has been done. Support stand 22
The tip rotatably supports a rotating shaft 24 of a pendulum 23, so that the pendulum 23 can rotate in all angles, up and down, right and left, and front and back, except for a part of the support base 22. A magnet 25 is attached to the tip of the pendulum 23.
is fixed to face the inner peripheral surface of the spherical ring 21. The spherical ring 21 has a plurality of detection elements 26a, 26b, . . . that detect the rotational position of the magnet 25.
...26n is fixed, and the same detection element 26
a, 26b . . . 26n are constituted by, for example, Hall elements. With this configuration, among the detection elements 26a, 26b...26n, the detection element at the position facing the magnet 25 is turned on, and the pendulum 2
3 always hangs down in the direction of gravity, so only the detection element in the direction of gravity is turned on. For example, when the detector 20 is in the state shown in FIG. 3, the detection element 26a is turned on, and when the detector 20 rotates by a predetermined angle in the direction A in the figure, the detection element 26n is turned on, and the detector 26a is turned on. When the detection element 26b rotates by a predetermined angle in the direction B in the figure, the detection element 26b is turned on.
Thereby, the rotational position of the detector 20 itself is detected.

As shown in FIG. 2, a musical tone generating device 30 is connected to the portable detector 20, and the generating device 30 generates a musical tone signal having a pitch corresponding to the detection signal from the detector 20. In this case, the pitch of the musical tone signal generated by the musical tone generating device 30 is determined corresponding to each detection element 26a, 26b...26n.
, the detection element 26b is set to the pitch "R", and the detection element 26b is set to the pitch "R".
6c corresponds to the pitch "mi", the detection element 26d corresponds to the pitch "fa", the detection element 26e corresponds to the pitch "so", and the detection element 26n corresponds to the pitch "a". As a result, as mentioned above, if the detector 20 is in the state shown in FIG. 3, the musical tone generator 30 will generate a musical tone signal with the pitch "C", and the detector 20 will move from the state shown in FIG. When the musical tone generating device 30 rotates by the predetermined angle, a musical tone signal of pitch “A” is generated,
Further, when the detector 20 rotates by the predetermined angle in the direction B from the state shown in FIG. 3, the generating device 30 generates a musical tone signal of pitch "re". A speaker 31 is connected to this musical tone generating device 30, and the speaker 31 produces musical tones corresponding to the musical tone signal from the musical tone generating device 30.

In such a case, for example, the rotation of the arm from A to F in Fig. 2 around the shoulder and elbow joints may be expressed as pitch "do", "re",
"Mi", "Fa", "G", and "A" are set respectively, and the detector 20 is set such that a musical tone signal of the pitch is generated by detecting the rotation angle of the detector 20 corresponding to the rotation of the arm. Try to hold 20 in your hand. In this state, when the human 10 rotates the arm around the shoulder and elbow joints, the rotation is detected by the detector 20 and a detection signal corresponding to the rotation is output. This detection signal is supplied to a musical tone generator 30, which generates the detection signal, that is, a musical tone signal having a pitch corresponding to the rotation of the arm, and the speaker 31 outputs a musical tone corresponding to the musical tone signal. pronounced. To explain this using an example, if the human 10 moves his arm in the order of A, E, F, E in FIG.
Pitches corresponding to "C", "G", "A",
A series of tones consisting of "G" is obtained.

In this way, according to the first embodiment, gymnastics,
If the arm is appropriately rotated around the shoulder and elbow joints during a movement such as dancing, ballet, dance, etc., a musical tone corresponding to the movement will be emitted from the speaker 31, making it possible for others to perform the movement. You will be able to enjoy music while watching or yourself.

First modification of the first embodiment In the first embodiment described above, the detection elements 26a,
26b...26n are arranged one-dimensionally, but as shown in FIG.
. . . etc. may be arranged multidimensionally. According to this, more music information, such as pitch information, for controlling the musical tones generated by the musical tone generating device 30 can be extracted from the detector 20.

Second modification of the first embodiment In the detector 20 of the first embodiment, the pendulum 2
3 is used to detect the rotation angle, however, the rotation angle may also be detected using a liquid and a float floating in the same liquid.

FIG. 5 shows a detector 40 according to the second modification, in which a portable spherical container 41 is filled with a liquid 42, and the liquid 42 includes a float 43.
is floating. A weight 44 is fixed to the bottom of this float 43, and a magnet 4 is attached to the top of the float 43.
5 is fixed. Further, the container 41 is provided with detection elements 46 at a plurality of predetermined locations, which are turned on when the magnet 45 comes to the opposing position, as in the first embodiment.
a, 46b...46h are fixed. With this configuration, when the detector 40 is rotated, the float 43 moves relative to the container 41 in a direction opposite to gravity, and along with this movement, the detection elements 46a, 46b
. . . Out of 46h, the detection element at the position facing the magnet 45, that is, the detection element located in the upper direction is turned on. For example, when the detector 40 is in the state shown in FIG. 5, the detector 46a is turned on, and when the detector 40 rotates by a predetermined angle in the direction A in the figure, the detector 46b is turned on, and the detector 46a is turned on. 4
0 rotates by a predetermined angle in the direction B in the figure, the detection element 46h turns on. Thereby, the rotational position of the detector 40 itself is detected.

As can be understood from this explanation, this second
By holding the detector 40 according to the modified example in the hand and connecting the detector 40 to the musical sound generating device 30 of the first embodiment, the arm can be moved to the shoulder and the shoulder during exercise movements such as gymnastics, dancing, ballet, dance, etc. Even if the elbow joint is rotated appropriately, similar to the first embodiment, the speaker 31 will emit a musical tone corresponding to the exercise action, and the user will be able to hear the exercise action while another person is watching it or the person himself or herself is performing the exercise action. You will be able to enjoy music while listening to music.

Other Application Examples of the First Embodiment In the first embodiment and its first and second variations, the human 10 holds the detectors 20 and 40
However, any part of the human body 10 other than the hand whose angle with respect to the reference point changes due to the movement The present invention can be carried out even if the detectors 20, 40 are attached to the parts.

Second Embodiment Next, a part of the body (in this case, the left hand or the right hand) is spatially displaced, and the generation of musical tones is controlled according to the distance of the body part from the reference point due to the displacement. Let me explain the case. In this case, as shown in FIG. 6, the human 10 moves his arms while holding portable first and second objects 50A and 50B that detect the distance between his left and right hands. In such a method, it is sufficient to use only one object as a detector, and there is no need to use the other object as a detector, so in this embodiment, for convenience, the first object 50A will be described as a distance detector. .

As shown in FIG. 7, the first object 50A as a distance detector is constituted by a detector outer frame 51 formed in a cylindrical shape, and the inner bottom surface of the outer frame 51 is equipped with elastic rubber or a spring. A support base 53 is formed to fix one end of the constructed elastic string 52. The elastic string 52 extends upward within the detector outer frame 51 and is connected to a pulley 55 rotatably supported by a bracket 54 fixed to the upper inner wall of the outer frame 51.
and is further extended to the outside through a hole 51a provided in the upper side wall of the outer frame 51, and the other end is connected to the second object 5.
It is set to be fixed at 0B. A magnet 56 is fixed to this elastic string 52 inside the detector outer frame 51, and by pulling or loosening the string 52, the magnet 56 moves up and down. Further, on the inner wall of the detector outer frame 51, a plurality of detection elements 57a, 57b...57 are arranged so as to face the magnet 56 at a position where the magnet 56 moves up and down.
e. For example, Hall elements are arranged and fixed in a line in the vertical direction.

With this configuration, when the first object 50A is in the state shown in FIG. 7, the detection element 57c is turned on,
When a force is applied to the elastic string 52 in the direction of arrow A in the figure and the string 52 stretches by a predetermined length, the magnet 56 moves upward, turning on the detection element 57d, and the elastic string 52 is moved in the direction of arrow B in the figure. Loosen the same string 52
When is contracted by a predetermined length, the magnet 56 moves downward and the detection element 57b is turned on. As a result, the detector 50A allows both detectors 50A, 50
The distance between B is detected.

A musical tone generator 30 and a speaker 31 similar to those in the first embodiment are connected to this portable detector 50A, and the generator 30 generates a musical tone signal with a pitch corresponding to the detection signal from the detector 50A. do. Also in this case, the pitch of the musical tone signal generated by the musical tone generating device 30 is determined by each detection element 57a, 57b...5
7e.

In such a case, as mentioned above, the human 10
When you hold the second objects 50A and 50B in your hands and move your arms through exercise movements such as gymnastics, dance, ballet, dance, etc., the distance between the two objects 50A and 50B changes and the elastic string 52 stretches or contracts. do.
The elastic string 52 expands and contracts each detection element 5.
7a, 57b......57e, and the musical tone generating device 30 generates a musical tone signal with a pitch corresponding to the detection result in the same manner as in the first embodiment, and generates a musical tone signal corresponding to this musical tone signal. Musical sound is from speaker 31
pronounced from Now, if the distance between the hands of the human 10 accompanying the motor movement is appropriately assigned to the pitch of the musical sound signal generated by the musical sound generating device 30, the manner in which the musical sound is generated can be controlled according to the motor movement. Therefore, even in the second embodiment, if the distance between the hands is changed by moving the arms during an exercise action such as gymnastics, dance, ballet, dance, etc., the speaker 31 will emit a musical tone corresponding to the exercise action. The user can enjoy the music while others or the user himself or herself are watching the movement.

First modification of the second embodiment Next, a part of the body (in this case, the left hand or the right hand) is spatially displaced, and a musical tone is generated according to the displacement speed of the body part accompanying the displacement. The case of control will be explained. In this case, the human 10 is
In place of the first and second objects 50A and 50B of the embodiment, the eighth A is used as a speed detection device for detecting the speed of the right hand relative to the left hand or the speed of the left hand relative to the right hand.
The first and second objects 6 as shown in Figures and Figure 8B.
Hold 0A and 60B in both hands and move your arms.

The speed detection device composed of the first and second objects 60A and 60B utilizes the Doppler effect, and the first object 60A functions as a transmitting device and the second object 60B functions as a receiving device. As shown in FIG. 8A, the first object 60A is a power source 62 housed in a portable cylindrical outer frame 61a.
a, a transmitter 63a, and a drive circuit 64a. The transmitter 63a outputs an electrical signal of a predetermined frequency, and a radio wave transmitting antenna 65a is connected to the transmitter 63a.
converts the electrical signal into radio waves and transmits them. The drive circuit 64a is connected to the transmitter 63a and drives the electro-acoustic converter 66a based on the electrical signal from the transmitter 63a. Electric-acoustic converter 6
6a is fixed to the upper part of the outer frame 61a, and includes an acoustic radiator 67a formed in the outer frame 61a by converting the electric signal into an acoustic signal (ultrasonic wave).
The ultrasonic wave as the acoustic signal is outputted via.

As shown in FIG. 8B, the second object 60B has a power source 62b housed in a portable cylindrical outer frame 61b, and an ultrasonic-electrical signal converter fixed to the upper part of the outer frame 61b. It has a container 63b. The ultrasonic-electrical signal converter 63b is connected to the outer frame 61b.
The ultrasonic wave inputted through the ultrasonic receiving cavity 64b formed in the ultrasonic wave receiving cavity 64b is converted into an electrical signal. This ultrasound-
The electrical signal converter 63b is connected to an amplifier 65b housed within the outer frame 61b.
b amplifies the electrical signal from the ultrasonic-electrical signal converter 63b and supplies it to a Doppler detector 66b housed within the same outer frame 61b. A radio wave receiving antenna 67b is connected to this Doppler detector 66b.
The relative velocity between the first and second objects 60A and 60B, that is, the Doppler effect, is detected based on the electric signal corresponding to the radio wave received at point b and the electric signal corresponding to the ultrasonic wave from the amplifier 65b.

In such a case, similarly to the second embodiment above, the human 1
When 0 holds the first and second objects 60A and 60B in his hands and moves his arms through exercise movements such as gymnastics, dance, volleyball, dance, etc., both objects 60A and 60B
The relative speed between them changes. In this case, the first object 6
Radio waves are transmitted from the 0A transmission antenna 65a, and at the same time, ultrasonic waves are emitted from the electro-acoustic converter 66a, and these radio waves and ultrasonic waves are transmitted to the second
Receiving antenna 67b of object 60B and ultrasonic wave-
The signals are received by the electrical signal converter 63b, converted into electrical signals, and supplied to the Doppler detectors 66b. The frequency of the ultrasonic waves transmitted from the first object 60A and received by the second object 60B changes due to the Doppler effect corresponding to the movement of the arm; Since the frequency of radio waves received at 60B hardly changes, the Doppler detector 66b
The Doppler effect, that is, the first and second objects 60A, 6 is based on the electric signal corresponding to the radio wave.
Detect the relative speed between 0B. Further, as in the second embodiment, this detection signal is supplied to the musical tone generating device 30 (see FIG. 6) to control the generation of musical tone signals, so that the Doppler effect, that is, the relative velocity is detected from the speaker 31. The corresponding musical tone is produced. Now, if the relative velocity between both hands associated with the movement of the human being 10 is appropriately assigned to the pitch of the musical sound signal generated by the musical sound generating device 30, the manner in which the musical sound is generated can be changed according to the movement. Since this is controlled, the same effects as in the second embodiment can be achieved in the first modification as well.

Second modification of the second embodiment Next, a part of the body (left hand or right hand in this case) is spatially displaced, and the part of the body accompanying the displacement and the other part (left hand or right hand in this case) A case will be explained in which the generation of musical tones is controlled according to the vertical distance from the
In this case, the human 10 is in the first embodiment of the second embodiment.
And instead of the second objects 50A, 50B, first and second objects 70A, 7 as shown in FIG.
Hold 0B in your hand and move your arm.

The distance detecting device consisting of the first and second objects 70A and 70B utilizes the change in hydraulic pressure due to the difference in height between the two objects 70A and 70B, and the first and second objects 70A and 70B are respectively external. frame 71
Bellows 72 housed in a and 71b
a, 72b. These bellows 72a, 72b
The bellows 72a, 72b are filled with liquids 73a, 73b, and each bellows 72a, 72b is communicated through a pipe 74 at one end. In addition, each bellows 72a, 72
b is biased toward one end by springs 75a and 75b at each other end. A magnet 76 is fixed to the other end of the bellows 72b of one object, for example, the second object 70B, and the magnet 76
A detection element 7 consisting of a Hall element is arranged so as to face the
7a, 77b...77e are arranged and fixed in a line on the inner wall of the outer frame 71b. With this configuration, if the first and second objects 70A and 70B are at the same height, the detection element 77c is turned on, and the first
When the object 70A is lifted and the other end of the bellows 72b is displaced by a predetermined amount in the direction A in the figure due to an increase in the hydraulic pressure applied to the bellows 72b, the detection element 77
d is turned on, and when the first object 70A is lowered and the hydraulic pressure applied to the bellows 72b is reduced, the other end of the bellows 72b is displaced by a predetermined amount in the direction B in the figure, the detection element 77b is turned on. Become.
As a result, the second object 70B causes both objects 70 to
The vertical distance between A and 70B is detected.

In such a case, similarly to the second embodiment above, the human 1
When 0 holds the first and second objects 70A and 70B in his hands and moves his arms through exercise movements such as gymnastics, dance, volleyball, dance, etc., both objects 70A and 70B
The vertical distance between them changes. This vertical distance, that is, the difference in height between the left and right hands is detected by the detection elements 77a and 77b.
77e, and the detection signal representing the detection result is supplied to the musical tone generator 30 (see FIG. 6) to control the generation of musical tone signals, as in the second embodiment, so that the speaker A musical tone corresponding to the vertical distance, that is, the difference in height is emitted from 31. Now, if the difference in height between the left hand and the right hand accompanying the motor movement of the human being 10 is appropriately assigned to the pitch of the musical sound signal generated by the musical sound generating device 30, a musical sound will be generated according to the motor movement. Since the aspect is controlled, the same effects as in the second embodiment can be achieved in this second modification as well.

Other Application Examples of the Second Embodiment In the second embodiment and its first and second variations, the human 10 is connected to the first and second objects 50A, 5
The first and second objects 50A, 50B, 60A, 60B were held in the left and right hands to perform exercise movements such as gymnastics, dance, volleyball, dance, etc. ,70
A, 70B may be attached to a part of the body other than the hand. Moreover, the first and second objects 50A,
One of 50B, 60A, 60B, 70A, and 70B may be held in the hand or attached to a part of the body, and the other may be placed on the ground, wall, or other fixed object. Even in this case, the first and second objects 50 during the displacement of a part of the body accompanying the exercise action
The distance between A and 50B, the first and second objects 60A,
Relative velocity between 60B and the first and second objects 70
Since the vertical distance between A and 70B changes, the same effect as in the second embodiment can be achieved.

[Brief explanation of drawings]

FIG. 1 is a state diagram showing a human motor movement for explaining the outline of the present invention, FIG. 2 is a block diagram showing a first embodiment of the present invention, and FIG. 3 is an example of the detector shown in FIG. 2. 4 is an external view showing another example of the detector, FIG. 5 is a sectional view showing another example of the detector, and FIG. 6 is a block diagram showing a second embodiment of the present invention. , FIG. 7 is a sectional view showing an example of the object in FIG. 6,
FIGS. 8A, 8B, and 9 are cross-sectional views showing other examples of the object. Explanation of codes, 20, 40...detector, 21...
Spherical ring, 23... Pendulum, 25, 45, 56,
76...Magnet, 26a-26n, 46a-46
h, 57a to 57e, 77a to 77e... detection element, 30... musical tone generator, 31... speaker,
41... Container, 42, 73a, 73b... Liquid,
43... Float, 44... Weight, 50A, 50B, 6
0A, 60B, 70A, 70B...object, 51,
61a, 61b, 71a, 71b...outer frame, 52
...Elastic string, 63a... Transmitter, 63b... Ultrasonic-electrical signal converter, 65a, 67b... Antenna, 66a... Electrical-acoustic converter, 66b...
...Doppler detector, 72a, 72b... bellows, 74... pipe.

Claims (1)

[Claims] 1. A device that electrically detects the spatial rotational movement of a part of the body around a reference point using a detection means carried by a person, and generates an electrical signal that changes according to the rotation. A musical sound generation control method for controlling musical tone generation of a scale corresponding to the rotational position of the part of the body by outputting the electric signal and supplying the electric signal to a musical tone generating means. 2 A detection means carried on a part of the human body electrically detects the distance from a reference point to the detection means as the part of the body moves spatially, and changes the distance according to the distance. A musical sound generation control method, which outputs an electrical signal to generate a musical sound, and supplies the electrical signal to a musical sound generating means to control a musical sound generation mode. 3. Electrically detecting the speed of spatial movement of a part of the body by a detection means carried by a person, outputting an electric signal that changes according to the speed, and transmitting the electric signal to a musical sound generating means. A musical sound generation control method for controlling musical tone generation of a scale corresponding to the movement speed of the body part.