JPH083713B2 - Music control device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a musical tone control device that controls musical tone generation in accordance with body movements such as rhythmic gymnastics.

"Prior Art" Conventionally, a rhythm stick has been devised as an instrument for controlling a musical sound in accordance with a body movement such as rhythmic gymnastics.
This rhythm stick is provided with an angle detection means for outputting a signal corresponding to the arm swing-up angle. And
The control signal generating means generates a tone control signal based on the output signal of the angle detecting means. As a result, it is possible to control the tone generation according to the arm swing-up angle, so if you grasp the stick with your hand and move your hand freely, for example, a tone whose pitch changes according to the movement of your hand. Can occur.

The appearance of the rhythm stick described above is shown in FIG. 5, and the electrical configuration of the tone generation circuit is shown in FIG. In FIG. 5, reference numeral 1 is a rhythm stick, which is formed in a cylindrical shape and has a grip portion 1a at one end. An angle detector 2 as shown in FIG. 6 is attached inside the tip of the stick 1. The angle detector 2 has mercury switches D1, D2, D3, D4, D5 fixed so as to form an angle of 30, 60, 90, 120, 150 degrees with respect to a straight line G indicating the direction of the substrate 2a. One or more of the mercury switches D1, D2, D3, D4, D5 are turned on in accordance with the angle formed by the straight line G and the vertical line. In this case, the substrate 2a needs to be located in a plane including the vertical line. Mercury switch
The electrodes D1a to D5a of D1, D2, D3, D4 and D5 are connected to the interface circuit 3 of FIG. Grounded to. The interface circuit 3 includes a mercury switch D1 ...
The angle with respect to the vertical line of the detector 2, that is, the angle with respect to the vertical line of the arm of the operator H is detected based on the ON / OFF state of D5, and the detection result is sequentially output to the musical sound signal forming circuit 4 as angle data KD. To do. The tone signal forming circuit 4 forms a tone signal having a pitch corresponding to the angle data KD and outputs it to the speaker SP. As a result, a musical tone having a pitch corresponding to the arm-raising angle of the operator H is generated from the speaker SP.

[Problems to be Solved by the Invention] By the way, in the above-mentioned stick, when the tone color of the generated musical sound is switched by the switch, the stick 1
Due to its shape, at most one or two switches can be attached. Therefore, there is a problem that it is difficult to switch various tones with these switches.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a tone control device capable of variously changing a tone color with a small number of switches.

"Means for Solving Problems" The present invention relates to a musical tone control device for controlling a musical tone generated by a musical tone generating device, a stick gripped by a hand, a switch means attached to the stick, and a sticking means attached to the stick. Angle detection means, a tone color memory for storing a plurality of tone color information, and tone color information corresponding to the detection result of the angle detection means when the switch means is operated from the plurality of tone color information from the tone color memory. And a control means for reading out and outputting to the musical tone generating device.

According to the present invention, the angle of the stick when the switch means is operated is detected, the tone color information corresponding to the detected angle is read from the tone color memory, and the tone color of the musical tone is controlled based on the tone color information. It Thus, for example, each time the switch attached to the stick is pressed with a finger, the tone color of the generated musical tone can be switched to the tone color corresponding to the arm swing-up angle.

[Embodiment] Hereinafter, a musical tone control apparatus according to an embodiment of the present invention will be described with reference to the drawings. The same members as those described in the related art are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a view showing a rhythm stick 1 used in the same embodiment. Symbols in the figure
Reference numerals 5 and 6 are push button switches, which are attached to positions where the thumb can reach when the grip 1a of the stick 1 is gripped. The switches 5 and 6 are the interface circuit 7 of FIG.
It is connected to the. An angle detector 2 is attached to the tip of the stick 1, and the mercury switches D1 to D5 of the angle detector 2 are connected to the interface circuit 7. A constant voltage V is applied to one end of each of the switches 5 and 6 and the mercury switches D1 to D5 via a resistor R, and each other end is grounded to GND. The interface circuit 7 is
Similar to the interface circuit 3 of FIG. 7, the angle of the operator H's arm with respect to the vertical line is detected based on the outputs of the mercury switches D1 to D5, and the detection result is output to the sequential control circuit 8 as angle data KD. To do. Further, the interface circuit 7 inputs the operation states of the switches 5 and 6, and when the switches 5 and 6 are pressed, the signals S1 and S2 of "H" level (Fig. 3 (a),
(See (c)), when the switches 5 and 6 are released, the "L" level signals S1 and S2 are output to the control circuit 8. Control circuit 8
Consists of a CPU, etc., and controls the generation of musical sounds, details of which will be described later. Reference numeral 9 denotes a tone signal forming circuit, which is a tone color corresponding to a tone color code TC output from the control circuit 8.
A tone signal having a pitch corresponding to the pitch code KC output from the control circuit 8 is formed, and the speaker SP is driven. Ten
Is a tone color memory, which is composed of ROM (Read Only Memory), and stores each tone color code TC corresponding to the tone colors of PIANO1, PIANO2, HARP, ELEPIANO and TRAMPET shown in FIG. 4 from the 0th address to the 4th address. Has been done.

Next, the operation of the above-described embodiment will be described. First, the tone color setting operation will be described. First, when the operator H holds the stick 1 and swings his / her arm up to a predetermined angle and presses the switch 6, the tone color is switched according to the swing-up angle of the arm at that time. That is, in FIG.
θ1 to θ5 indicate the range of arm swing-up angle, and the tone color of the generated musical tone is PIANO1 to TRAMPE for θ1 to θ5.
Can be switched to either T. Now, assuming that the signal S2 is as shown in FIG. 3C, the rising time t1 of the signal S2
At, the control circuit 8 detects that the switch 6 has been pressed and checks the input data KD. When it is detected that the arm swing-up angle range is θ3 (see FIG. 3B),
The control circuit 8 uses the tone color code TC of the HARP sound based on FIG.
Is read from the second address of the tone color memory 10 and transferred to the tone signal forming circuit 9. As a result, the HARP tone color is set in the tone signal forming circuit 9.

Next, the tone generating operation will be described. When the operator H pushes up the stick 1 while pressing the switch 5, the signal S1 becomes a "1" signal, and this "1" signal is output from the interface circuit 7 to the control circuit 8. The control circuit 8 receives this "1" signal, creates a pitch code KC corresponding to the data KD, and outputs it to the musical tone signal forming circuit 9. The tone signal forming circuit 9 forms a tone signal having a pitch corresponding to the input code KC and drives the speaker SP. As a result, a tone having the tone color set in the above-described process and having a pitch corresponding to the arm swing-up angle is generated from the speaker SP.

By the way, when the switch 6 is pressed while the switch 5 is being pressed, the control circuit 8 switches the timbre as described below. That is, the control circuit 8 is
At the time t2 when the signal S2 rises (when the switch 6 is pressed) shown in FIG.
At the time t3 of falling (switch 5 is released) of the arm, it is detected from the angle data KD that the arm swing-up angle range is θ1 (see FIG. 3B), and as described above.
The tone color code TC of the PIANO1 tone is read from the address 0 of the tone color memory 10 and the tone color of PIANO1 is set in the tone signal forming circuit 9.

Although the angle detector 2 is used as the angle detecting means in the above embodiment, the form of the angle detecting means is not limited to this. Further, in the above-mentioned embodiment, the pitch and tone color of the musical tone are controlled according to the output of the angle detector 2, but the volume of the musical tone may be controlled instead of the pitch.

"Effects of the Invention" As described above, by using the musical tone control apparatus according to the present invention, there is an effect that the tone colors of musical tones can be changed variously and quickly by operating a small number of switches. Further, since the tone color is selected by the angle of the stick, the number of times the switch is pressed can be reduced and the labor of the operation can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a rhythm stick 1 used in an embodiment of the present invention, FIG. 2 is a circuit diagram for explaining the tone color setting and tone generation operations of the same embodiment, and FIG. 3 is the same embodiment. Showing the waveforms of signals S1 and S2 and the arm swing-up angle range for explaining the operation of FIG. 4, FIG. 4 is a view showing the tones stored in the tone color memory, and FIG. 5 is a rhythm stick used in the prior art. 1, FIG. 6 is a diagram showing the angle detector 2 in FIG. 5, and FIG. 7 is a circuit diagram for explaining the tone generating operation of the prior art. 1 ... Rhythm stick, 2 ... Angle detector, 6 ... Push button switch, 7 ... Interface circuit, 8 ...
Control circuit, 9 ... tone signal forming circuit, 10 ... tone color memory, KD, KC, TC ... data, S2 ... signal, H ... operator.

Claims (1)

[Claims] 1. A tone control device for controlling a tone generated by a tone generator, comprising: a stick held by a hand; a switch means attached to the stick; an angle detection means attached to the stick; A tone color memory for storing tone color information, and a tone color information corresponding to the detection result of the angle detecting means when the switch means is operated from a plurality of tone color information is read from the tone color memory and output to the tone generating device. And a control means for switching the tone color of a generated musical tone.