JPH07319457A - Automatic playing system for drum - Google Patents

Abstract

PURPOSE:To provide an automatic drum playing system which has a playing device to generate continuous beat having short intervals and a recording device to conduct a recording for itself. CONSTITUTION:A hit sensor 10R detects a hit made by a right hand stick, a hit sensor 10L detects a hit made by a left hand stick, a pressure sensor 20R detects the right hand grip of a player and a pressure sensor 20L detects the left hand grip of the player, respectively. Output signals of each sensor are converted into data having a prescribed format by a data converter 1 and recorded in a controller 3 through a driving circuit 2. On the other hand, actuators 51R, 51L, 52R and 52L are driven by the circuit 2 in accordance with the data read by the controller 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic drum playing system capable of recording and playing a drum playing more faithfully.

[0002]

2. Description of the Related Art Drums classified as membrane instruments are
There are various types all over the world and they are very popular. All of these drums generate a musical sound by causing a film (vibrating film) to ring by a person's external impact. 2. Description of the Related Art In recent years, automatic musical instrument (for example, piano) automatic musical instruments have been developed, and a drum automatic musical instrument is also being developed in this trend.

[0003]

However, the conventional automatic drum playing apparatus developed in such a background is as follows.
The arm holding the stick is given a simple rotation, and this rotation strikes the drum, and the arm in such a device only imitates a human hand.

In such a device, since it is not possible to control the return immediately after hitting, it is impossible to perform rolling hits in a drum performance, that is, continuous hits at short intervals like 1/16 to 1/32 notes. Further, in such a device, the movement of the arm and the movement of the stick fixed to the arm also become unnatural, and the listener feels uncomfortable.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an automatic drum playing device capable of continuous hits at short intervals, and a recording device for performing recording for the device. It is to provide an automatic drum playing system that combines

[0006]

According to a first aspect of the present invention, there is provided a striking rod imitating a drum stick, wherein a first sensor for detecting a striking and a player A striking rod having a second sensor for detecting whether or not the grip is performed with a force equal to or more than a threshold value, and a recording unit for recording each detection result by the first and second sensors in a predetermined format. It is characterized by doing.

According to the second aspect of the present invention, there is provided a striking rod imitating a stick for a drum, wherein a first sensor for detecting a hit and a magnitude of grip force by a player are set. A striking rod having a second sensor for detecting;
Recording means for recording each detection result of the first and second sensors in a predetermined format is provided.

According to a third aspect of the invention, in the invention of the first or second aspect, the second sensor is a portion where the performer grips the striking rod, and the entire striking rod is included. It is characterized by being attached to the peripheral surface.

According to a fourth aspect of the invention, a swing arm that supports a stick that strikes a drum so as to be rotatable within a predetermined angle, a swing means that swings the swing arm, and A stop means for stopping the rotation of the stick with respect to the swing arm is provided, and the stick strikes the vibrating film of the drum by the swing of the swing arm by the swing means.

According to a fifth aspect of the invention, in the invention of the fourth aspect, the data of the magnitude of the hit and the timing thereof are recorded in the recording means in advance, and at the time of performance, the data is recorded from the recording means. It is characterized in that the data is read and the swinging means and the stopping means are driven in accordance with the data.

According to a sixth aspect of the present invention, in the invention according to the fourth or fifth aspect, at the time of hitting the drum with the stick, after the stopping means stops the rotation of the stick, The rocking means starts rocking, and before the stick hits the drum,
The stopping means releases the rotation of the stick, and after the striking of the drum by the stick, and when the time to strike next is longer than a predetermined time, the stopping means prevents the stick from rotating. It is characterized by stopping again.

According to a seventh aspect of the present invention, there is provided a striking rod for a drum, which includes a first sensor for detecting a hit and a second sensor for detecting a grip force of a player. A swinging arm that supports a striking rod having an arrow, a recording unit that records the detection results of the first and second sensors in a predetermined format, and a stick that strikes the drum so as to be rotatable within a predetermined angle. A swinging means for swinging the swing arm and a stopping means for stopping the rotation of the stick with respect to the swing arm. Data is read from the recording means to obtain a detection result of the first sensor. Correspondingly, the swing means is driven, and the stopping means is driven corresponding to the detection result of the second sensor, so that the stick strikes the vibrating membrane of the drum.

According to an eighth aspect of the invention, in the invention of the seventh aspect, two striking rods are provided so as to correspond to both hands of the player, and the recording means is provided for each striking rod. While recording the detection result of each sensor, the stick,
Two striking rods are provided so as to correspond to the striking rods, and each stick strikes according to the detection result of each detecting means of each striking rod.

[0014]

According to the first aspect of the present invention, the impact of the striking rod in the drum performance is detected by the first sensor, and it is determined whether or not the player grips the striking rod by a threshold value or more.
Of the sensor and each detection result is recorded in a predetermined format.

According to the second aspect of the present invention, the impact of the striking rod in the drum performance is detected by the first sensor, the grip force of the performer is detected by the second sensor, and the respective detection results are obtained. , Is recorded in a predetermined format.

According to the third aspect of the present invention, the second sensor is a portion which the player grips and is attached to the entire peripheral surface of the striking rod. Therefore, the performer installs the second sensor installation portion. You can play without being aware of it.

According to the fourth aspect of the invention, the swing arm imitates the wrist of the person, the swinging means imitates the movement of the wrist, and the restraining means imitates the grip of the person by the stick.

According to the fifth aspect of the invention, the swinging means and the stopping means are respectively driven according to the data recorded in advance.

According to the sixth aspect of the present invention, after the stopping means stops the rotation of the stick, the swinging means starts swinging, so that the rotation of the stick is stopped at the start of swinging. Further, before the stick hits the drum, the stopping means releases the rotation of the stick, so that the stick reacts and turns when hitting.
Since the stick rotates only within a predetermined angle with respect to the swing arm, when the stick is rotated up to the limit angle, the stick further rotates in a direction in which the drum is hit by reaction. By repeating this, it is possible to repeatedly hit the stick. On the other hand, after hitting the drum with the stick and when the time when the next hit should be made is longer than the predetermined time, the reaction means stops the recoil rotation of the stick and prevents unnecessary repeated hits.

According to the invention described in claim 7, the hit in the performance with the hitting rod is detected by the first sensor, the grip force of the performer is detected by the second sensor, and the respective detection results are obtained. While being recorded in a predetermined format, by oscillating means simulating the movement of the wrist and stopping means simulating a grip on a stick by a person are driven according to each recorded detection result, It is possible to record and reproduce the performance state of the performer on the drum.

Further, according to the invention described in claim 8,
It is possible to record and reproduce the performance state of both hands of the performer.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

<1. Structure of Embodiment> FIG. 1 is a block diagram showing a schematic structure of this embodiment. As shown in this figure, the embodiment is mainly divided into three systems, that is, a recording system, a reproducing system, and a control drive system. Of these, the recording system is composed of the striking rods ST / R, ST / L and the data converter 1, and the reproducing system is the actuators 51R, 51L, 52.
The control drive system includes a drive circuit 2 and a controller 3. Note that “R” and “L” at the end of the reference numerals correspond to the right hand and the left hand, respectively. Each of these systems will be sequentially described below.

<1-1. Recording System> First, the recording system will be described. This recording system is for collecting necessary data when the drum 4 is hit with a reproducing system described later. As shown in FIG. 2, the batting rod ST / R for the right hand of the player imitates a stick used for playing a drum and has a hollow cylindrical shape. In the reproduction system described later, the word "stick" appears, but in the present description, the "striking rod" means that a sensor is built in, and the "stick" means that the actuator actually strikes the drum. As for each, use properly.

Reference numeral 10R is an acceleration sensor, which is a striking rod ST.
-It is attached to the hollow part of R. Reference numeral 20R is a pressure-sensitive sensor that detects the magnitude of force when the player's right hand grips the striking rod ST.R. Reference numeral 30 denotes an amplifier, which amplifies the output signals of the acceleration sensor 10R and the pressure-sensitive sensor 20R and supplies the amplified signals to the data converter 1 via the cable C.

Similarly, the batting rod ST.L for the left hand of the performer
The output signals of the acceleration sensor 10L and the pressure-sensitive sensor 20L are respectively amplified by the amplifier and supplied to the data converter 1 via a cable.

Next, details of the pressure sensitive sensor 20R will be described with reference to FIGS. 3 (a) to 3 (c). As shown in FIGS. 7A and 7B, the pressure sensor 20R is a portion where the player grips the striking rod ST / R, and is provided over the entire circumferential surface of the cylindrical portion. Specifically, the pressure sensor 20
The R is formed by sandwiching the pressure sensitive sheet 24 between the electrodes 22 and 23 and further covering them with the cover sheet 21. The pressure-sensitive sensor 20L has the same configuration and is provided over the entire circumferential surface of the left-handed striking rod ST • L. The electric characteristics of the pressure-sensitive sensors 20R and 20L having such a configuration are shown in FIG. In this figure, the logarithm is shown as a logarithm, and the resistance value between the electrodes 22 and 23 decreases as the grip force (pressing force) by the player increases.

Therefore, if a constant current is applied between the electrodes 22 and 23 and the voltage between the electrodes 22 and 23 is measured,
It is possible to detect the grip force of the performer.

The data converter 1 outputs the output signals of the striking rods ST.R and ST.L in a predetermined format (for example, M
The data is converted to data of IDI specifications). Specifically, the data converter 1 includes acceleration sensors 10R and 10R.
By peak-holding and A / D converting the output signal of L, data indicating the timing at which the striking rod is hit and the size thereof is obtained, and this is converted into a predetermined format via the conversion table to convert the data. Output. At this time, the relation with the desired format is recorded in advance in the conversion table. Similarly, the data converter 1 processes the output signals of the pressure sensitive sensors 20R and 20L and outputs data indicating the magnitude of the grip force with respect to time. At this time, the data converter 1 allocates the track corresponding to the sensor and outputs it.

<1-2. Control drive system> This drive system records the data obtained by the above-mentioned recording system,
With respect to the reproduction system, the recorded data is read and the actuator described later is driven. Further, in this embodiment, since the data having no relation to the data recorded in the recording system and having the timing and the size thereof can be used, in this case,
Control the actuator to drive it properly.

In FIG. 1, the drive circuit 2 is composed of a power supply circuit and a control unit, transfers the data supplied from the data converter 1 to the controller 4, and converts the data supplied from the controller 3 into data. Based on this, each actuator is individually driven.

The controller 3 writes the data supplied through the drive circuit 2 to, for example, a floppy disk, while reading the data from the floppy disk in which various data are written, and if necessary, various data is written. Processing (tone conversion, volume adjustment, etc.) is performed and the result is supplied to the drive circuit 2.

<1-3. Reproduction System> This reproduction system imitates the movement of a person's wrist with an actuator, and rotates the stick in response to the movement of the actuator to strike the drum 4.

FIG. 4A is a plan view showing the structure of a mechanism simulating the right wrist of a person, and FIG. 4B is a side view showing the structure of the mechanism. Further, FIG. 5 is a schematic perspective view for explaining the configuration of the mechanism. In these figures,
A stay 50 is fixed to the drum 4 at a position (see FIG. 1) similar to a person's playing style. 51R is an actuator composed of a rotary solenoid, and rotates the swing arm 53. A spring (not shown) is connected to the swing arm 53, and when the actuator 51R is not operating, the swing arm 53 is restored to the position indicated by the chain double-dashed line in FIG. 4B. A bush 54 is rotatably passed through the other end of the swing arm 53, and right-hand sticks D and R are fixed to the tip of the bush.

On the other hand, a brake arm 57 that rotates about a shaft 56 is attached to the back surface of the swing arm 53 (the surface that is the outside when set on the drum 4), and one end of the brake arm 57 is An escape hole 58 for the bush 54 is provided. Furthermore, the brake arm 5
7 is provided with a brake pad BP, and when the swing arm 53 is rotated clockwise in the figure, the peripheral surface of the bush 54 is pressed to stop the rotation. Stick D on the bush 54
Since R is fixed, when the brake arm 57 rotates clockwise, the rotation of the stick D.R with respect to the swing arm 57 is stopped. The brake pad BP is preferably made of a material, such as felt, which is excellent in sound absorbing property and stopping property in order to prevent contact noise.

It is the actuator 52R that rotates the brake arm 57 in the clockwise direction. The actuator 52R is attached downward at the vertical bending portion of the swing arm 53, and the actuator 5R
The 2R actuating rod pushes the actuating surface 61 of the brake arm 57 downward, so that the brake arm 57 rotates clockwise.

On the other hand, the mechanism that imitates the left wrist of a person is the mechanism that imitates the right wrist shown in FIG. As shown in FIG. 1, this left wrist mechanism is fixed to the drum 4 at a position similar to a person's playing style.

In addition, these right-hand and left-hand mechanisms include
As shown in FIG. 6, in order to enhance the reality, the silicone rubber HG shaped like the wrist of each person is covered,
The stick does not rotate indefinitely with respect to the shaft 55, but only rotates within a range corresponding to the elasticity of the silicon rubber HG. Then, these mechanisms are set such that the tip of the stick strikes the drum 4 when the actuator 51R (51L) is rotated.

As described above, in the mechanism of the right wrist, the actuator 5 performs the bending movement of the right wrist during the drum performance of a person.
It is intended to imitate the grip of the right index finger and the thumb by the rotation by 1R and the rotation stop by the actuator 52R. Similarly, in the left wrist mechanism, the bending motion of the left wrist in a person's drum playing is imitated by the rotation of the actuator 51L and the grip of the left index finger and the thumb is imitated by the rotation of the actuator 52L. Is.

<2. Operation of Embodiment> Next, the operation of this embodiment will be described. In this embodiment, the operation mode is divided into a recording mode, a reproduction mode and a reproduction mode. Hereinafter, each of these modes will be sequentially described.

<2-1. Recording Mode> In this embodiment, the recording mode means that the player strikes the batting rods ST, R and S.
This is a mode in which a drum performance is performed using TL, the performance state at this time is detected by each sensor, and this is recorded in a predetermined format. In the drum performance in the recording mode, since it is sufficient to detect the acceleration of the striking rod, it is not necessary to use the acoustic drum and, for example, a simple plate may be used.

The player sets the recording mode by a switch (not shown) and gives an instruction to start recording. The performer uses his forefinger and thumb to hold the batting stick ST / R in his right hand
・ When L is gripped in the left hand and the drum is played, the acceleration of the stick ST ・ R is the acceleration sensor 10R.
Thus, the grip force of the right hand is measured by the pressure sensor 20R, the acceleration of the stick ST • L is measured by the acceleration sensor 10L, and the grip force of the left hand is measured by the pressure sensor 20L.
Are respectively detected and supplied to the data converter 1.

When the player hits the tip of the stick ST.R or ST.L, the timing is detected from the sign reversal of the acceleration accompanying the hit. In addition, the strength of impact is detected from the magnitude of acceleration. However, since the reversal of the sign may occur in an operation other than the striking, the data converter 1 determines that the striking has occurred only when the acceleration at the time of the sign reversal is larger than the threshold value. When the data converter 1 determines that a hit has occurred, the data converter 1 outputs data indicating the timing and the magnitude thereof.

On the other hand, the data converter 1 includes the pressure sensor 20.
From the output signals of L and 20R, data indicating the grip force of the performer are sequentially output in a time series. The hit and grip data output in this manner is output by assigning different tracks to each sensor.

When the performer gives an instruction to end the performance, the data converter 1 outputs data for each sensor system for one music piece from the start to the end of the performance. In the recording mode, the drive circuit 2 transfers the output data from the data converter 1 to the controller 3 as it is. The controller 3 outputs one piece of output data from the data converter 1 transferred via the drive circuit 2,
Record on floppy disk as one file.

In this way, the playing state of the drum by the performer is detected by each sensor, and the output signals of these sensors are converted into data having a predetermined format and recorded.

<2-2. Reproduction Mode> Next, the reproduction mode will be described. In this embodiment, the reproduction mode is to read the data recorded in the recording mode described above, and based on the read data, drive the actuators of the right-hand mechanism and the left-hand mechanism to reproduce the drum performance in the recording mode. It is the one to be (reproduced).

First, the operator operates the controller 3 to load a file for one music piece recorded in the recording mode from the floppy disk. And the performer
When a start button (not shown) is turned on, the controller 3 sequentially supplies the drive circuits 2 with the data having the same timing from the loaded file.
This data supply is performed for each track (that is, for each sensor system).

Next, the control unit of the drive circuit 2
When the data is supplied from the controller 3, the actuator corresponding to the data is driven by the operation amount indicated by the data.

For example, in the drive circuit 2, if the data supplied from the controller 3 is based on the detection result of the acceleration sensor 10R, the actuator 51R.
However, the actuator is supplied with a voltage and driven so as to rotate at a size (speed) indicated by the data. Similarly, if the drive circuit 2 is based on the detection result of the acceleration sensor 10L, the actuator 51L
However, a voltage is supplied to the actuator 51L to drive it so that the actuator 51L rotates with the strength indicated by the data.

Further, since the data based on the pressure-sensitive sensors 20R and 20L are output in a time series, the brake pad BP presses the bush 54 with the strength indicated by these data to prevent the stick from rotating. In addition, a voltage is supplied to each of the actuators 52R and 52L to drive them. The data supplied from the controller 3 is
Since the data is supplied for each track, the drive circuit 2 does not need a process for determining the attribute of data.

In this way, each actuator is driven based on the data output from the controller 3, and the drum performance recorded in the recording mode can be reproduced. When all the data of the loaded file is output, the drum performance based on the data ends.

<2-3. Reproduction Mode> Next, the reproduction mode will be described. The reproduction mode is different from the reproduction mode in that the right hand mechanism and the left hand mechanism are driven only by the data indicating the timing and the magnitude of the hit. Therefore, as long as the data indicates the timing and the size of the hit, it may be the data manually input by a personal computer or the like, or the data of a certain track among the data relating to the automatic performance. In this mode, there is no data for driving the actuators 52R and 52L, but the controller 3 drives the actuator 52R or 52L in the following manner based on the data indicating the timing of impact. In this case, if there is data for two tracks, the right-hand mechanism and the left-hand mechanism can be driven by the respective data. However, for convenience of explanation, when the mechanism for one hand is driven by the data for one track. Will be described.

<2-3-1. Relationship between Impact and Actuator in Playback Mode> FIG. 7 is a time chart for explaining this driving. Note that, in FIG. 7C, the vertical axis indicates the position of the stick, the state where the actuator 51 is not operating when the characteristic is flat, and the tip of the stick at the apex such as time t _4. Shows the moment when he hits the drum. That is, in this characteristic, the upward movement indicates the swing-down motion for hitting.

First, the operator operates the controller 3 to load a desired file for one music piece from the floppy disk. Then, when the performer turns on a start button (not shown), the controller 3 sequentially supplies the data whose timings match from the loaded file to the drive circuit 2.

Here, it is assumed that there is data in which the impact timing is time t ₁ . As shown in (b) of the same figure, the controller 3 sends data indicating the magnitude of the impact to the time t ₃ from the time when the start button is turned on until the time t _1.
Data for driving the actuator 51 is supplied to the drive circuit 2. Here, the time t ₃ is a time before the time t ₄ at which the tip of the stick is actually hit.

On the other hand, the controller 3 outputs data to drive the actuator 52 from time t ₀ to time t ₂ which is a predetermined time before time t ₁ as shown in FIG. Here, the time t ₂ is a time after the time t _{1 and} before the time t ₄ . Here, the controller 3 has already loaded the file once, and can search the data indicating the timing of hitting in advance to output the data at the time t ₀ before the time t _1. Is.

Next, if the timing to hit next is longer than the predetermined time, the controller 3 outputs the data to drive the actuator 52 from time t ₅ to time t _6, while hitting next. If the timing is shorter than the predetermined time, the actuator 52 outputs no data. FIG. 7A shows the former case.

<2-3-2. Operation of Stick in Playback Mode> Now, when data is output to the actuators 51 and 52 by the controller 3, the drive circuit 2
Supplies a voltage according to the data indicating the magnitude of the impact to the actuator 51 to drive the same and also to drive the actuator 52.

Since the stick is prevented from rotating with respect to the swing arm 53 by the operation of the actuator 52 at the time t ₀ , as shown in FIG. 7C, after the time t ₁ thereafter, the actuator does not move. As the swing arm 57 is rotated by 51, the swing arm 57 is swung down linearly. Then, at time t ₂ rotation stop is opened, but the operation of the actuator 51 is stopped in yet time t _3, stick strikes the drum at time t ₄ due to inertia.

After that, the stick recoils (falls down to the right), but if the timing to hit next is longer than a predetermined time, the rotation is stopped by the actuator 52 at time t ₅ , and the swing is again made. Arm 57
Is restored by the spring, so that the tip of the stick gradually returns to the state before swinging down.

On the other hand, if the timing at which the stick is to be hit next is shorter than a predetermined time after hitting, the rotation of the swing arm 53 is not stopped, so that the stick turns in the direction opposite to the hitting by the reaction of hitting. However, due to the elastic repulsion of the silicone rubber HG, when it recoils to a certain extent, it starts to rotate again in the striking direction (again rising to the right). During striking, the actuator 51 is rotated until immediately before striking, so that the re-striking of the stick is performed by the rotation of both (shown by the broken line in FIG. (C)).

By assigning the right-hand mechanism to one track and the left-hand mechanism to other tracks, it is possible to drive the left and right mechanisms independently.

As described above, in the present embodiment, unnecessary recoil is restrained, but by utilizing two rotations, it is possible to continuously strike at extremely short intervals.

[0065] In this playback mode, the time t ₄ that is actually hit with a stick, but it means that caused a time lag from the time t ₁ of the indication of the blow, in fact, the time t ₁
The time from to time t ₄ is extremely short and can be perceptually ignored. If necessary, this time lag can be corrected as follows. The time from time t ₁ to t ₄ is determined by the timing of hitting and its magnitude, that is, by the speed (tilt) of swinging down. Therefore, the time lag at the time of the impact is calculated in advance from the data indicating the timing and the magnitude of the impact, and the time lag can be eliminated by advancing the operation start timing of the actuator 51 by this amount.

In the embodiment described above, the swing arm 53 is rotated by the actuator 51 so that the stick is rotated to strike the ball, but the present invention is not limited to this. For example, the swing arm 53 may be moved up and down to strike the ball. The point is that the swing arm 53 swings as its name suggests, and a hit is performed by this.

Further, in this embodiment, the actuators 51 and 52 can be immediately driven by the data obtained without recording the data obtained in the recording mode. That is, the drum operation by the striking rods ST / R and ST / L can be reproduced in real time by the right-hand mechanism and the left-hand mechanism.

In the above-described embodiment, the pressure sensors 20R and 20L continuously detect the size of the player's grip, but it is also possible to detect whether or not the player grips a threshold value or more. Furthermore, if the threshold value is considered to be zero, it will be detected whether or not the grip has occurred. In this case, the amount of data to be recorded can be reduced because it is sufficient to determine whether or not the data to be recorded grips the threshold value or more and the timing. In this case, the actuator 52R or 52L is turned on / off according to this data.

[0069]

As described above, the present invention has the following effects.

The striking state of the striking rod indicating the playing state can be recorded in a predetermined format together with the state of the player's grip without requiring an actual drum (claim 1).

The striking state of the striking rod indicating the playing state can be recorded in a predetermined format together with the magnitude of the grip force of the player without requiring an actual drum (claim 2).

Since the second sensor is attached to the entire peripheral surface of the striking rod, the player can perform the performance without being aware of the attachment position of the second sensor (claim 3). .

Since the swing arm imitates the wrist of the person, the swinging means imitates the movement of the wrist, and the restraining means imitates the grip on the stick by the person, the performance closer to that of a person can be imitated ( Claim 4).

Since the swinging means and the stopping means are driven in accordance with prerecorded data, the recorded performance state can be reproduced (claim 5).

While continuous hitting with a stick is possible,
When the next time to hit is longer than the predetermined time,
Unnecessary repeated hits are prevented (Claim 6).

It is possible to record the performance state of the performer on the drum and reproduce the performance state (claim 7).

It is possible to record and reproduce the performance state of both hands of the performer (claim 8).

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment according to the present invention.

FIG. 2 is a diagram showing a structure of a striking rod ST / R in the embodiment.

3A is a cross-sectional view showing the configuration of a pressure-sensitive sensor 20R (L), FIG. 3B is a development view showing the configuration of the sensor, and FIG. 3C is a characteristic of the sensor. FIG.

FIG. 4A is a plan view showing the configuration of the right-hand mechanism in the same embodiment, and FIG. 4B is a side view showing the configuration of the same mechanism.

FIG. 5 is a perspective view showing a schematic configuration of the mechanism.

FIG. 6 is a side view showing a mode of use of the mechanism.

7 (a) is a diagram for explaining the operation of the actuator 52, and FIG. 7 (b) is a diagram for explaining the operation of the actuator 51 upon impact.
(C) is a figure for demonstrating the movement of a stick.

[Explanation of symbols]

1 ... Data converter, 3 ... Controller (recording means), 10R, 10L ... Impact sensor (first sensor), 20R, 20L ... Pressure sensor (second sensor), ST.R, ST・ L …… Striking rod, D ・ R, D ・ L
...... Stick, 51R, 51L ...... Actuator (oscillating means), 52R, 52L ...... Actuator (stopping means), 53 ...... Swing arm

Claims (8)

[Claims] 1. A striking rod simulating a stick for a drum, a first sensor for detecting a hit, and a first sensor for detecting whether or not a player grips with a force equal to or more than a threshold value. An automatic drum playing system comprising: a striking rod having two sensors; and a recording means for recording each detection result of the first and second sensors in a predetermined format. 2. A striking rod simulating a stick for a drum, the striking rod having a first sensor for detecting a hit and a second sensor for detecting a magnitude of a grip force by a player. An automatic drum playing system comprising: a stick; and a recording means for recording the detection results of the first and second sensors in a predetermined format. 3. The automatic drum drum according to claim 1, wherein the second sensor is a portion where a player grips the striking rod and is attached to an entire circumferential surface of the striking rod. Performance system. 4. A swing arm for supporting a stick hitting a drum so as to be rotatable within a predetermined angle, a swing means for swinging the swing arm, and a rotation of the stick with respect to the swing arm. An automatic performance system for a drum, characterized by comprising: a stopping means for causing the stick to strike the vibrating membrane of the drum by the swinging of the swing arm by the swinging means. 5. Data of the magnitude and timing of hitting is recorded in a recording means in advance, the data is read from the recording means at the time of performance, and the swinging means and the stopping means are driven according to the data. The automatic drum playing system according to claim 4, wherein: 6. When hitting the drum with the stick, the swinging means starts swinging after the stopping means stops the rotation of the stick, and before the stick hits the drum, The stopping means releases the rotation of the stick, and after the striking of the drum by the stick, and when the time to hit next is longer than a predetermined time, the stopping means causes the stick to turn. 6. The automatic drum playing system according to claim 4 or 5, wherein the automatic playing system is stopped again. 7. A striking rod for a drum, the striking rod having a first sensor for detecting a hit and a second sensor for detecting a grip force of a player, and A recording unit that records each detection result of the second sensor in a predetermined format, a swing arm that rotatably supports a stick that strikes the drum within a predetermined angle, and a swing that swings the swing arm. A moving means and a stopping means for stopping the rotation of the stick with respect to the swing arm, reading the data from the recording means, and setting the swinging means in accordance with the detection result of the first sensor. An automatic drum playing system characterized in that the stick strikes the vibrating film of the drum by driving the stopping means in accordance with the detection result of the second sensor. 8. The striking rod is provided in correspondence with both hands of the player, and the recording means records the detection result of each sensor of each striking rod, while the stick corresponds to the striking rod. Let me prepare two,
8. Each stick strikes according to the detection result of each detection means of each striking rod.
Automatic drum playing system as described.