JPS63192470A - Music sound control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a musical tone control device that controls generated musical tones in accordance with, for example, the body movements of a performer.

[Prior Art] Traditionally, musical tones have been generated either by playing a musical instrument such as a piano or violin, or by using the vocal cords.

However, converting movements such as ``bending'' or ``rotating'' human joints into musical sounds has never been done.

[Problem to be solved by the invention] Therefore, this invention solves the problem of human "bending" or "turning".
It is an object of the present invention to provide a musical tone control device that can control musical tones in accordance with the motion, or the bending angle or rotation angle of a part of the human body.

[Means for Solving the Problems] The present invention provides a motion detection means that is constructed of wL fibers that are stretchable and whose resistance changes according to the stretch, and is attached to a joint part of the human body, and the motion detection means. The present invention is characterized by comprising a musical tone control means for detecting a change in resistance of the musical instrument and controlling a musical tone based on the detection result.

[Operation] According to the present invention, when the device is attached to a human elbow, for example, the motion detection device expands and contracts due to the motion of “bending” or “rotating” the joint. Therefore, since the resistance of the motion detection means changes, it becomes possible to convert human body actions into musical sounds, and various effects can be obtained in rhythmic gymnastics and other fields.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing the external structure of a musical tone control device according to an embodiment of the present invention when it is attached to a performance sound, and FIG. 2 is a block diagram showing the electrical structure of the same embodiment. The device is composed of a device body 1, a right elbow detector Sl, a left elbow detector S2, a right knee detector S3, and a left knee detector S4. 2 is attached to the player's waist, and the detectors S1, S2, S3, and S4 are attached to the player's waist, left elbow, right knee, and left knee, respectively. In this embodiment, in addition to the musical tone control device, the main body l of the apparatus is also provided with a musical tone signal forming circuit and a speaker that are controlled by the control device.

Next, the configurations of the detectors S1, S2, S3 and S4 will be explained. First, the right elbow detection section Sl is configured as shown in FIG. In this figure, reference numeral 3a denotes a supporter-like mounting device made of a material (such as a rubber member) that is stretchable to match the shape of the cloth and has electrical insulation properties. Band-shaped conductive members 4a and 5a are closely attached to the outer periphery of both end portions of this mounting tool 3a, respectively. Further, carbon fibers ica and -Can are closely attached to the outer periphery of the mounting tool 3a along its length at predetermined intervals. Further, one end of each of the carbon fibers w, ca, and -Can is connected to the conductive member 42L, and the carbon fibers w, ca, and -Can are connected to a conductive member 42L,
The other end of each can is connected to the conductive member 5a.

When the right elbow detector Sl having such a configuration is stretched in its length direction, the resistance value between the conductive members 4a and 5a exhibits a characteristic that increases with the stretching, as shown in FIG. . As a result, when the right elbow detector Sl is attached to the cloth as shown in FIG. 3 and the cloth is bent and stretched, the resistance between the conductive members 4a and 5a changes depending on the bending angle (
(See Figure 4).

Further, the left elbow detector S2, the right knee detector S3, and the left knee detector S4 are configured similarly to the right elbow detector S1 described above.

Next, in Figure 2, 9 is a 4-channel analog signal.
a multiplexer which selects each detector 5 based on the channel select signal cs supplied to its select terminal.
It selects and outputs one of the detection signals (voltage signals) supplied from l-94. 10 is an A/D converter (
analog/digital converter). Also, 11
1 is a CPU (central processing unit), 12 is a ROM (read only memory) in which programs used by the CPU II are stored, and 13 is a RAM (random access memory) used as a work area. The CPU II supplies a sequentially changing channel select signal O8 to the analog multiplexer 9, and scans the outputs of each of the detectors 81 to S4 at high speed. Further, the CPU II determines each bending angle of the cloth and left elbow in four stages based on the detection data supplied from the detectors St and S2 and converted by the A/D converter 10, and based on the determination results. Based on this, key code data KC for instructing a predetermined pitch is created in accordance with the combination of cloth attachment and each bending angle of the left elbow. Also,
Based on the detection data supplied from the detector S3 and converted by the A/D converter 10, the bending angle of the right knee is determined in three stages, and based on this discrimination result, the volume is adjusted according to the bending angle of the right knee. Volume data VOL specifying (large, medium, small)
Create. Furthermore, it is supplied from the detector S4, and the A/D
Based on the detection data converted by the converter 10, the bending angle of the left knee is determined in four stages, and based on this discrimination result, a predetermined tone (for example, piano, organ, flute, etc.) is selected depending on the bending angle of the left knee. , saxophone, clarinet, etc.)
Create timbre specification data TD that specifies . These CP
The key code data KC1 created in U11, the tone crushing data VOL, and the tone designation data (musical tone control data) are supplied to the musical tone signal forming circuit 15 via the pass line I4. The musical tone signal forming circuit 15 is configured to form a musical tone signal having a pitch corresponding to the supplied key code data KC, a volume corresponding to the volume data VOL, and a tone specified by the tone color specification data TD. The musical tone signal output from the musical tone signal forming circuit 15 is emitted from the speaker 16 as a musical tone. Also, reference numeral 17 in the figure
is a transmitting circuit that wirelessly transmits the musical tone signal output from the musical tone signal forming circuit 15.

According to the embodiment described above, the pitch of the musical tone emitted from the speaker 16 of the device main body 1 can be changed depending on the combination of the bending angles of the right elbow joint and the left elbow joint of the performer, and the pitch of the musical tone emitted from the speaker 16 of the device main body 1 can be changed. The volume of the musical tone can be changed in three stages according to the bending angle of the performer's right knee joint, and the timbre of the musical sound can be changed in four stages according to the bending angle of the performer's left knee joint. .

In the above embodiment, the bending angle of each detector is set to 4 stages for the left and right elbow joints, 3 stages for the right knee joint, and 4 stages for the left knee joint.
However, there is no limit to the designation of the bending angle in stages.

[Effects of the Invention] As explained above, according to the present invention, the fiber is made of fibers that are stretchable and whose resistance changes according to the stretch,
The present invention includes a motion detection means attached to the joints of the human body, and a musical sound control means that detects a change in resistance of the motion detection means and controls the musical sound based on the detection result, so that the joints of the human body can be "bended". It is now possible to generate musical sounds that correspond to the action of "turning" or to certain bending or rotational angles of the human body, making it possible to convert human body actions into musical sounds. Therefore, various effects can be obtained in rhythmic gymnastics and other fields.

[Brief explanation of the drawing]

Fig. 1 is an external configuration diagram of an embodiment of the present invention worn on a performer, Fig. 2 is a block diagram showing the electrical configuration of the embodiment, and Fig. 3 is a right elbow detection device of the embodiment. FIG. 4 is a perspective view showing the external configuration of the detector S1. FIG. 4 is a characteristic diagram showing changes in resistance value with respect to expansion and contraction of the right elbow detector S1 of the same embodiment. 5l-S4...Detector (operation detection means), I.
... Device main body (musical tone control means).

Claims (1)

[Scope of Claims] A motion detecting means that is made of a fiber that is stretchable and whose resistance changes according to the stretch, and that is attached to a joint part of the human body; A musical tone control device comprising a musical tone control means for controlling musical tones based on the result.