JPH096357A - Musical tone controller - Google Patents

Abstract

PURPOSE: To provide a musical tone controller constituted to enable a player to easily make playing of fast tempo and playing using many kinds of timbre in a device for detecting the ways of moving of the joints and generating the musical tones in accordance with the detected ways of moving. CONSTITUTION: The control to give an instruction to generate the first timbre is executed by a sound production control means when the player moves the joints and at lest the bending quantity of the joints which is below a prescribed first bending quantity is detected by sensors S1 to S6. On the other hand, the control to give an instruct to produce the second timbre is executed by a sound production control means when at least the bending quantity of the joints which exceeds a prescribed second bending quantity is detected by the sensors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting the movement of a human body and controlling the generation of musical tones based on the detected movement. A device suitable for carrying out the generation.

[0002]

2. Description of the Related Art Sensors for detecting the degree of movement of joints are attached to joints such as the elbows and wrists of a player's body, and the generation of musical tones is controlled based on the degree of movement detected by the sensors. Accordingly, the applicant has proposed an electronic musical instrument named "Mibri Electronic Musical Instrument", which has a visual effect of coordinating the gesture of a performer and the generation of a musical tone.

In such an electronic musical instrument, conventionally, only one kind of timbre is assigned to each joint movement,
The joint has a predetermined one state (for example, a state in which the movement of bending the joint is stopped, or a state in which the joint bends beyond a certain level)
I was trying to generate a musical tone of that timbre.

[0004]

However, in the case of assigning a tone color of a drum and performing a high-tempo performance such as a continuous drum strike, such a conventional electronic musical instrument requires a very quick operation. Will be done,
In practice, such performance was impossible or very difficult. Further, in such a conventional electronic musical instrument, only a maximum number of types of tones are generated, which is equal to the number of joints to which a sensor is attached, and the number of joints to which such a sensor can be attached is limited. I couldn't perform well enough. Some electronic musical instruments have a timbre switch for selectively switching the timbre assigned to each joint, but two movements, joint movement and switch operation, are performed in parallel. It had to be done and the operability was poor.

The present invention has been made in view of the above points, and in a device such as a Mibli electronic musical instrument that detects the degree of movement of a joint and generates a musical tone based on the detected degree of movement, the tempo is high. It is an object of the present invention to provide a musical tone control device capable of easily performing a musical performance or a musical performance using various kinds of tones.

[0006]

A tone control device according to the present invention comprises a sensor for detecting the bending amount of a joint of a human body, and at least the bending amount detected by the sensor is less than a predetermined first bending amount. On the other hand, the generation of the predetermined first tone color is instructed on the other hand, and on the other hand, on the other hand, the predetermined second tone color is generated at least on the condition that the bend amount detected by the sensor exceeds the predetermined second bend amount. It is characterized in that it is provided with a sound generation control means for instructing the generation of a timbre.

[0007]

When the player moves the joint and the sensor detects that the bending amount of the joint is less than the predetermined first bending amount, the sound generation control means instructs the generation of the first timbre. On the other hand, when the sensor detects that the bending amount of the joint exceeds the predetermined second bending amount, the sound generation control means performs the control for instructing the generation of the second timbre. Be done. According to this control, the tone generator device, the sound system, and the like generate the musical tones of the first timbre and the second timbre.

As described above, the timbre is assigned to each of two states, that is, the state in which the bending amount of the joint is less than the first bending amount and the state in which the bending amount of the joint exceeds the second bending amount. It is instructed that a musical tone should be generated in any of the states. Therefore, when the same timbre is assigned to the two states (that is, the first timbre and the second timbre are the same timbre), the tempo is quickly played based on the movement of one joint. Can be done easily. Also, different tones are assigned to these two states (that is, the first tone and the second tone).
If different tones from each other), it will be possible to perform using a variety of tones based on the movement of a limited number of joints.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a state in which a musical sound control device according to an embodiment of the present invention is mounted on a player's body. This tone control device includes angle sensors S1 to S6, grip units GUL and GUR, and a belt unit BU.

The angle sensor S1 is attached to the joint area of the player's left shoulder in order to detect the bending angle of the joint. Similarly, the angle sensors S2 to S6 are attached to the joint parts of the player's left elbow, left wrist, right shoulder, right elbow, and right wrist in order to detect the bending angle of the joint. As an example, each of the sensors S1 to S6 is made by attaching a substance (for example, carbon) whose electric resistivity changes by elastic deformation to a thin and flexible insulator sheet, and depending on the bending degree of the sheet attached to the joint part. By utilizing the fact that the resistivity of the substance changes, an electric signal corresponding to the resistivity is output.

The grip unit GUL is a unit for gripping with the left hand, and the grip unit GUR is a unit for gripping with the right hand. In FIG. 2, the units GUL and G
An example of the external configuration of the UR is shown. The unit GUL includes a thumb switch SW1 operated by a thumb, an index finger, a middle finger,
Switches SW2 to SW5 operated with the ring finger and little finger respectively
Is provided. The unit GUR has switches SW2 to S operated by an index finger, a middle finger, a ring finger, and a little finger, respectively.
W5 is provided, but thumb switch SW1 is not provided. (However, the thumb switch SW1 may be provided on the unit GUR instead of the unit GUL.) The switches SW2 to SW5 are switches that are operated to generate specific tones. Since the thumb switch SW1 is a switch used in various situations, its function will be described later in accordance with an operation example of this musical sound control device.

The belt unit BU is a unit provided with a belt for winding around the waist of the player, and is attached around the waist of the player by winding the belt around the waist.
The operation panel of the unit BU is provided with a display device (for example, a liquid crystal display) for displaying various information and a switch group for performing various operations. This switch group also includes a customization switch CSW whose function will be described later in an operation example of this musical tone control device.

FIG. 3 is a block diagram showing the circuit configuration of this tone control device. The electric signals output from the sensors S1 to S3 which are angle sensors for the left shoulder, elbow and wrist are transmitted to the unit GUL which is a grip unit for the left hand. The unit GUL outputs a signal obtained by converting the electric signal into a predetermined code and a signal corresponding to the on / off state of the thumb switch SW1 and the switches SW2 to SW5 and is transmitted to the belt unit BU. Right shoulder,
The electric signals output from the sensors S4 to S6, which are angle sensors for elbows and wrists, are transmitted to the unit GUR, which is a grip unit for the right hand. From the unit GUR,
A signal obtained by converting the electric signal into a predetermined code and a signal corresponding to the on / off state of the switches SW2 to SW5 are output and transmitted to the belt unit BU.

In the belt unit BU, the signal from the grip unit GUL is input to the detection circuit 10 and the signal from the grip unit GUR is input to the detection circuit 11. Detection signals (sensor data signals based on the outputs of the sensors S1 to S6 and ON / OFF event signals of the switches SW1 to SW5 of the units GUL and GUR) are output from the detection circuits 10 and 11 according to the input signals. To be done. This detection signal is given to the microcomputer unit 13 via the bus 12. The display unit 14 and the panel switch group 15 on the operation panel described above are also connected to the microcomputer unit 13 via the bus 12. Also,
A MIDI standard interface 16 for transmitting a signal to an external tone generator is connected to the microcomputer unit 13 via the bus 12.

The microcomputer unit 13 is a CPU
It includes a (central processing unit) 17, a ROM (read only memory) 18 and a RAM (random access memory) 19, and the ROM 18 has a "stretching motion" and a "bending motion" of each joint of the left and right shoulders, elbows and wrists. "
Assignment data for allocating a specific tone color is stored for each of the above. Also, the grip unit GU
Allocation data for allocating a specific tone color is stored even for the ON event of each of the L and GUR switches SW2 to SW5. FIG. 4 shows an example in which the timbres of the percussion instruments constituting the drum set are assigned as an example of the assignment data. To the left and right shoulders, the tone of the crash cymbal is assigned to the "stretching action", and the tone of the bass drum is assigned to the "bending action". On the left and right elbows, a tom tone color is assigned to the "stretching action" and a clap tone color is assigned to the "bending action". Snare drum tones are assigned to the left and right wrists for both "stretching" and "bending". Left and right unit GU
For both L and GUR (indicated as L and R in the figure), a tone for closing the high hat cymbal is assigned to the switch SW2 for the index finger, and a high tone is assigned to the switch SW3 for the middle finger. The tone color when the hat cymbal is opened is assigned, and the tone color when the high hat cymbal pedal is depressed is assigned to the switch SW4 for the ring finger and the switch SW5 for the little finger.
The specific meanings of the "extending operation" and the "bending operation" will be described later in an operation example of the musical sound control device.

The microcomputer unit 13 includes a timer 2
At the timing according to the clock signal from 0, while controlling the overall operation of the belt unit BU, the sound generation control processing according to the "stretching operation" and "bending operation" of each joint part and the on event of the switches SW2 to SW5, Perform other processing. The control signal generated from the microcomputer unit 13 in the tone generation control processing is transmitted via the bus 12 and the interface 16 to the tone generator system TGS installed at a position appropriately separated from the performer. A tone signal corresponding to the control signal is generated from the tone generator system TGS, and the tone signal is supplied to the sound system SS and is acoustically sounded by the system SS.

Next, an example of processing executed by the microcomputer unit 13 will be described with reference to FIG. FIG.
Is the microcomputer unit 13 of the belt unit BU.
Shows the main routine executed by. This main routine repeatedly executes a processing cycle including a sensor process, a grip process, and a belt process after a predetermined initialization for peripheral circuits and the like. In the sensor processing, the sensors S1 to S6
The sensor data from the detection circuits 10 and 11 based on the output of 1 is taken in, and processing using the data is performed. An example of the sensor processing is shown in FIG. In the grip processing, the switches SW1 to S from the detection circuits 10 and 11 are used.
Processing based on the W5 on / off event signal is performed.
The grip processing shown in FIG. 7 based on the ON event of the thumb switch SW1, the processing shown in FIG. 8 based on the ON event of the thumb switch SW1, and the processing shown in FIG. 9 based on the OFF event of the thumb switch SW1. Such processing is included. In the belt processing, processing based on a signal from the panel switch group 15 of the belt unit BU is performed.
The belt processing includes the processing shown in FIG. 10 based on the ON event of the customization switch CSW.

In the processing cycle of this main routine,
There are two modes of processing, that is, the processing in the customization mode and the processing in the sound generation control mode. The customization mode includes lower limit value data SL1 to SL6 of sensor data indicating a state in which the joints are fully extended and sensor data indicating a state in which the joints are bent, for each of the left and right shoulders, elbows, and wrist joints. The upper limit value data SH1 to SH6 are set to the respective angle sensors S1 to S6.
This mode is set by the performer according to the characteristics of, the flexibility of one's body, and the like. By making this setting, it is possible to determine when the value of the sensor data from the detection circuits 10 and 11 may be determined to be the "stretching motion" or the "bending motion" of the joint. You will be able to make accurate decisions individually. When there is an on event of the customization switch CSW in the panel switch group 15, this customization mode is entered. The pronunciation control mode is the lower limit data SL1 set in the customize mode.
This is a mode in which the generation of musical tones is actually controlled using ~ SL6 and upper limit value data SH1 to SH6.

First, the processing in the customization mode will be described. When the performer turns on the customize switch CSW after the main routine is started by turning on the power-on switch in the panel switch group 15, when the performer turns on the customize switch CSW, in the process of FIG. It is determined that there is an ON event of, and the process proceeds to step 501, and the value of the parameter CM indicating whether the mode is the customization mode is set to the value “1” indicating the customization mode. Next, in step 502, after performing a predetermined display on the display 14 to inform the performer that the customization mode has been entered,
To return. In the sensor processing (FIG. 6), the detection circuit 1
Sensor data SD of each sensor S1 to S6 from 0 and 11
After importing 1 to SD6 (step 100), it is determined whether or not the value of the parameter CM is "1" (step 101), and after the step 501 of the process of FIG. Then, the process proceeds to the mode process (step 102).

FIG. 11 shows an example of the customization mode processing. In this process, first, it is determined whether or not the value of the parameter SS indicating the on / off state of the thumb switch SW1 is "1" (step 600). Parameter SS
Is the thumb switch SW in the processing of FIG. 8 in the grip processing.
If it is determined that there is an on event of 1 (step 30
0) and "1" are set (step 301), and when it is determined that there is an off event of the thumb switch SW1 in the processing of FIG. 9 in the grip processing (step 400),
It is set to "0" (step 401). Therefore,
If the performer has not yet turned on the thumb switch SW1, the result of step 600 in FIG. 11 is NO and step 6
Go to 01. In step 601, the sensor data SD
1 to SD6 and the lower limit value data SL1 to SL6 and the upper limit value data SH set in the customization mode so far
1 to SH6 are compared. Then, the lower limit data SL1
If there is data SD1 to SD6 having a value smaller than SL6 (that is, the degree of extension corresponding to the lower limit data SL1 to SL6 up to that point in the degree of extension of each joint of the shoulder, elbow, and wrist at this time). If there is something that exceeds it,
The display of “under” is performed on the display unit 14. On the other hand, the data SD1 having a value larger than the upper limit data SH1 to SH6
If there is SD6 (that is, the upper limit value data SH1 up to that point in the bending states of the joints of the shoulder, elbow, and wrist this time)
The display 14 indicates "over" if the bending degree corresponding to SH6 is exceeded.
Then return.

When the player turns on the thumb switch SW1 when he or she wants to reset the lower limit data SL1 to SL6 or the upper limit data SH1 to SH6 by looking at this display on the display unit 14, The parameter SS is set to "1" through the steps 300 and 301 of the processing in FIG. 8 described above, and then it is determined in step 302 whether the value of the parameter CM is "1". Become yes and proceed to step 303. Step 30
3, buffers LB1 to LB6 for temporary storage for setting lower limit value data SL1 to SL6, and upper limit value data S
Buffer HB for temporary storage for setting H1 to SH6
By writing the current values of the sensor data SD1 to SD6 to 1 to HB6, the stored data in these buffers are cleared. Then return.

By setting the parameter SS value "1", in the customize mode processing of FIG.
If the answer is 00, the answer is yes, and the process proceeds to step 602. In step 602, the values of the sensor data SD1 to SD6 are set to the buffers LB1 to LB6 and the buffers HB1 to HB6.
Compared with the value of the stored data. And the buffer LB1
To SD1 to SD that are smaller than the storage data of LB6
Even when there is 6, the data SD1 to SD6 are newly written in the corresponding buffers LB1 to LB6. Also,
If there are data SD1 to SD6 larger than the data stored in the buffers HB1 to HB6, the data SD1 to SD1
SD6 is newly written in the corresponding buffers HB1 to HB6. This music data stored in the buffers LB1 to LB6 is the minimum value of the current data SD1 to SD6 by executing this step 602 in each processing cycle while the performer bends and extends each joint of the shoulder, elbow and wrist. (I.e., the value corresponding to the state in which the stretched state is the largest this time) is updated, and the stored data in the buffers HB1 to HB6 corresponds to the maximum value of the data SD1 to SD6 in the present period (that is, the state in which the bent state is the largest) Value). Then return.

After the stored data in the buffers LB1 to LB6 and HB1 to HB6 are updated by bending and stretching the shoulders, elbows and wrists in this way, the performer uses the thumb switch SW.
When 1 is turned off, the value of the parameter SS is set to "0" through steps 400 and 401 of the process of FIG. 9 in the "grip process", and then the value of the parameter CM is set to "1" in step 402. It is determined whether or not, and since it is “1” here, the determination is yes and the process proceeds to step 403, and the value of the variable n indicating the number of the sensor S is set to the initial value “1”. Next, at step 404, the difference between the value of the stored data in the buffer HBn and the value of the stored data in the buffer LBn is
Whether it is larger than a predetermined angle width value X determined at the time of manufacture (that is, whether there is a certain angle difference between the most extended state and the most bent state of the joint this time), and the buffer Is there a predetermined reference angle value Y determined at the time of manufacture between the value of the stored data of HBn and the value of the stored data of the buffer LBn (that is, when the joint is extended more than a certain reference angle this time? It is determined whether or not there is a bent state with respect to the reference angle. If both are YES, the process proceeds to step 405, where the value of the stored data in the buffer LBn is set as the lower limit value data SLn of the sensor data, and the value of the stored data in the buffer HBn is set as the upper limit value data SHn of the sensor data. Go to step 406. On the other hand, if neither is the case, the process jumps from step 404 to step 406.

In step 406, it is judged whether or not n = 6. If no, in step 407 the value of the variable n is incremented to "n + 1", and then in step 404.
The process of step 406 is repeated. When the processing is completed for all the buffers LB1 to LB6 and the buffers HB1 to HB6, the result in step 406 is YES and the process returns. As a result, if the stored data in the buffers LB1 to LB6 (that is, the value corresponding to the state in which the stretched state is the largest this time) is satisfied by the joint, provided that the requirements for the angle width value X and the reference angle value Y are satisfied. The lower limit data SL1 to SL6 representing the fully extended state are set, and the stored data in the buffers HB1 to HB6 (that is, the value corresponding to the state in which the bending condition is the largest at this time) represents the state in which the joint is bent. It is set as upper limit data SH1 to SH6.

After the lower limit value data SL1 to SL6 and the upper limit value data SH1 to SH6 are set by turning off the thumb switch SW1 in this way, the performer switches the switch SW2 of either the grip unit GUL or GUR.
When SW5 is turned on, it is determined that there is an on event in step 200 of the process of FIG. 7 in the “grip process”, and the process proceeds to step 201, and the switch having the on event is set to the left or right of the grip unit (L). Or R) and switch number SN (one of SW2 to SW5)
To specify. Next, at step 202, it is judged whether or not the value of the parameter CM is "1". Since it is "1" here, the routine proceeds to step 203, and it is judged whether or not the value of the parameter SS is "1". . If yes, then return, but here it is no, so step 20
After proceeding to step 4 and setting the value of the parameter CM to “0”,
To return. This leaves the customization mode.

Next, the processing in the tone generation control mode will be described. Sensor processing in the sound generation control mode (Fig. 6)
Then, after passing through step 100, the result in step 101 is NO and the process proceeds to step 103. In step 103, the lower limit value data SL1 to SL6 and the upper limit value data SH1 to SH6 set in the customize mode are used to obtain the normalized values NSD1 to NSD6 of the sensor data SD1 to SD6 by the following equation.

## EQU00001 ## NSDn = (SDn-SLn) / (SHn-SLn) (where n is an integer from 1 to 6) As is clear from the above formula, NSD1 to NSD6 have lower limit values of the sensor data SD1 to SD6. Value data SL1
Sensor data SD from the value "0" when equal to SL6 (that is, when the player has extended the joint)
When the value of 1 to SD6 is equal to the upper limit value data SH1 to SH6 (that is, when the player has bent the joint completely), it takes any value up to "1".

When step 103 is completed, the process proceeds to the tone generation control mode process (step 104). FIG. 12 shows a first example of the sound generation control mode processing. In this example, first, in step 700, the velocities V1 to V6, which are the temporal change rates of NSD1 to NSD6, are calculated. In this calculation, the values of NSD1 to NSD6 are calculated at fixed time intervals and stored in a buffer, and the difference between the value stored in the buffer at a certain time and the value stored in the buffer at a time earlier than that is calculated. By doing. Next, in step 701, the sensors S and N
The value of the variable n indicating the number such as SD is set to the initial value "1". Next, at step 702, the value of NSDn is set to a predetermined threshold value TLn, TH determined at the time of manufacture according to each joint region.
By comparing with n, it is determined which one of the three states of the following equation.

## EQU00002 ## State 1: TLn> NSDn State 2: THn ≧ NSDn ≧ TLn State 3: NSDn> THn Here, the threshold value TLn is a value close to “0” among values between “0” and “1”. (For example, “0.1” for a certain joint), and the threshold value THn is “0” to “1”.
Is a predetermined value larger than the threshold value TLn and close to “1” (for example, “0.9” for a certain joint). That is, the threshold value TLn corresponds to the value of NSDn in a state where the joint is fully extended to a certain extent, and the threshold value THn is equivalent to the value of NSDn in the state where the joint is almost fully bent. To do.
Therefore, the state 1 of the above equation is a state close to the state where the joint is fully extended, the state 3 is a state close to the state where the joint is fully bent, and the state 2 is a state where neither of them is present.

Next, in step 703, the state 2 of the above equation is
From the above to state 3 (that is, the joint has a threshold value T
An event from a bend in a range not exceeding Hn to a bend in a range exceeding threshold THn) or a change from state 2 to state 1 in the above equation (that is, the joint has a threshold TL).
It is determined whether or not there is an event (change from the extended state within the range not exceeding n to the extended state exceeding the threshold TLn). If there is a change from state 2 to state 3, step 70
Proceed to step 4, "bending motion" of the joint to which the sensor Sn is attached
A note-on (pronunciation start) signal for instructing to pronounce the tone color (see FIG. 4) assigned to the sound at a strength corresponding to the absolute value of the velocity Vn is generated, and the signal is generated by the bus 12 and the interface 10 (FIG. Sound source system TGS via 3)
(FIG. 3). However, when the absolute value of the velocity Vn is less than the predetermined magnitude (that is, the speed at which the joint is moved is less than the predetermined speed), the note-on signal is not generated so that the performer does not generate the note-on signal. Unconsciously state 2
It prevents an erroneous generation of a musical sound when the joint is slightly moved from the state to the state 3. Then, the process proceeds to step 706.

On the other hand, if there is a change from the state 2 to the state 1, the process proceeds from step 703 to step 750, and the tone color (see FIG. 4) assigned to the "stretching motion" of the joint part to which the sensor Sn is attached is set to the speed Vn. A note-on signal instructing to pronounce with a strength according to the absolute value is created, and the signal is transmitted to the tone generator system TGS via the bus 12 and the interface 10. However, also here, when the absolute value of the velocity Vn is less than the predetermined magnitude, the note-on signal is not generated, so that the player unconsciously slightly moves the joint from state 2 to state 1. It prevents erroneous generation of musical sounds when the . And step 7
Proceed to 06. On the other hand, if there is no change, the process jumps from step 703 to step 706.

In step 706, it is determined whether or not n = 6. If no, step 707 increments the value of the variable n to "n + 1", and then step 703.
The process of step 707 is repeated. When the processing is completed for all NSD1 to NSD6, the result in step 706 is YES and the process returns.

Thus, the first of the sound generation control mode processings
In the above example, there is a change from the state where the joint bends within the range not exceeding the threshold THn to the state where the joint bends exceeding the threshold THn, and the speed of moving the joint at the time of change is equal to or higher than a predetermined speed. This is recognized as a “bending motion”, and the generation of the tone color (see FIG. 4) assigned to the “bending motion” of the joint is instructed. Further, there is a change from a state in which the joint is extended within a range not exceeding the threshold TLn to a state in which the joint is extended beyond the threshold TLn, and the moving speed of the joint at the time of change is equal to or higher than a predetermined speed. Is recognized as a "stretching motion", and generation of a tone color (see FIG. 4) assigned to the "stretching motion" of the joint is instructed.

FIG. 13 shows a second example of the tone generation control mode processing. In this example as well, first of all, in the same manner as in the above-mentioned first example, the speeds V1 to V that are the temporal change rates of the NSD1 to NSD6.
6 is calculated (step 800), and the value of the variable n indicating the number of the sensor S, NSD, etc. is set to the initial value "1" (step 801). Next, in step 802, an event of a change in the velocity Vn from a positive value to “0” (that is, a change from a state of moving the joint in the bending direction to a state of stopping the movement) or a change of the velocity Vn. It is determined whether or not there is a change from a negative value to “0” (that is, a change from a state in which the joint is moving in the extension direction to a state in which the movement is stopped).

If there is a change event from a positive value to "0", the process proceeds to step 803, and the value of NSDn when the speed Vn is "0" is determined at the time of manufacture according to each joint. It is determined whether it is larger than the predetermined value XHn. X
Hn is a predetermined value close to “1” (for example, “0.9” for a certain joint) among values between “0” and “1”, and therefore the joint is constant in a bent state. It corresponds to the value of NSDn in a state close to a certain degree. If yes, the process proceeds to step 804, and a note-on signal is generated to instruct that the tone color (see FIG. 4) assigned to the "bending motion" of the joint to which the sensor Sn is attached is pronounced with strength corresponding to the velocity Vn. , And transmits the signal to the tone generator system TGS via the bus 12 and the interface 10. However,
If the velocity Vn before the movement is stopped is less than a predetermined amount, the note-on signal is not generated so that the player unconsciously recognizes the joint in a state close to the bent state. Prevents the false generation of musical sounds when you make a slight movement in the bending direction. Then, the process proceeds to step 807. On the other hand, if NO, the process jumps from step 803 to step 807.

On the other hand, from the negative value of the speed Vn to "0"
If there is a change event to, the process proceeds from step 802 to step 805, and it is determined whether or not the value of NSDn in that state is smaller than a predetermined value XLn determined at the time of manufacture according to each joint. XLn is a predetermined value smaller than XHn and close to “0” among values between “0” and “1” (for example, “0.1” for a joint), and therefore the joint is stretched. It corresponds to the value of NSDn in a state close to the cut state to a certain extent. If yes, the process proceeds to step 806, and the tone color (see FIG. 4) assigned to the "stretching motion" of the joint to which the sensor Sn is attached is set to the velocity V.
A note-on signal for instructing to pronounce with a strength corresponding to n is generated, and the signal is generated by the bus 12 and the interface 10.
To the sound source system TGS. However, also here, when the magnitude of the velocity Vn before the movement is stopped is less than a predetermined magnitude, the note-on signal is not generated, so that the performance is performed in a state close to the state where the joint is fully extended. To prevent an erroneous generation of a musical sound when a person unconsciously makes a slight movement in a direction of extending the joint. Then, the process proceeds to step 807. On the other hand, if NO, the process jumps from step 805 to step 807. On the other hand, if there is no change event described above, the process jumps from step 802 to step 807.

In step 807, it is determined whether or not n = 6. If no, step 808 increments the value of the variable n to "n + 1", and then step 802.
The process of step 807 is repeated. When the processing is completed for all NSD1 to NSD6, the result in step 807 is YES and the process returns.

Thus, the second part of this sound generation control mode process
In the above example, there is a change from the state of moving the joint in the bending direction to the state in which the movement is stopped, and when the movement is stopped, the joint bends beyond the predetermined value XHn, and before the stop. The fact that the speed of the bending motion of the joint is equal to or higher than a predetermined speed is recognized as a “bending motion”, and the generation of the tone color (see FIG. 4) assigned to the “bending motion” of the joint is instructed. In addition, there is a change from the state of moving the joint in the direction of extension to the state in which the movement is stopped, and when the movement stops, the joint extends beyond the predetermined value XLn, and the joint before the stop When the speed of the motion of stretching is equal to or higher than the predetermined speed, it is recognized as the "stretching motion", and the generation of the tone color (see FIG. 4) assigned to the "stretching motion" of the joint is instructed. When the tone generation control process as described above is returned, the sensor process (FIG. 6) is returned.

In the grip processing in the tone generation control mode, when the player turns on the switches SW2 to SW5 of either the grip unit GUL or GUR, FIG.
20 through the steps 200 and 201 of the processing
If NO in step 2, the process proceeds to step 250, and a note-on signal is generated to instruct to generate the tones (see FIG. 4) assigned to the left and right L and R of the switch having the on event and the switch number SN. Then, the signal is transmitted to the tone generator system TGS via the bus 12 and the interface 10. Further, when the performer turns on the thumb switch SW1, it goes through step 300 and 301 of the process of FIG. 8 to NO in step 302 and proceeds to step 304 to perform a sound effect imparting process for the tone color. Perform predetermined processing. Further, even when the performer turns off the thumb switch SW1, steps 400 and 401 in the processing of FIG.
After step 402, the answer is NO in step 402, and the flow advances to step 404 to perform a predetermined process such as a sound effect imparting process on the timbre.

As described above, in this tone control device, the lower limit value of the sensor data indicating the fully extended state and the upper limit value of the sensor data indicating the fully bent state are set for each of the left and right shoulder, elbow and wrist joints. The player sets the "stretching motion" and the "bending motion" of the joints individually and appropriately for each player by setting the "" according to his or her body. Then, the control for instructing the generation of the timbre is performed corresponding to both the "stretching motion" and the "bending motion" thus determined.

In this embodiment, in the tone generation control mode process, the values NSD1 to NSD6 obtained by normalizing the sensor data SD1 to SD6 are obtained, and the threshold value is set to a value between "0" and "1", and NSD1 is set. ~ The presence or absence of "stretching motion" and "bending motion" is verified based on the comparison of the magnitude relationship between NSD6 and its threshold value. However, not limited to this, the absolute value of the sensor data corresponding to a state in which the joint part is fully extended to a certain degree and the absolute value of the sensor data corresponding to a state in which the joint part is bent to a certain degree are The absolute value is set as a threshold value, and the presence or absence of the "stretching operation" and the "bending operation" is recognized based on the comparison of the magnitude relationship between the values themselves of the sensor data SD1 to SD6 and this absolute value. Good. That is,
The process of step 103 of the sensor (FIG. 6) is omitted, and step 700 of the first example (FIG. 12) of the sounding control mode process and step 8 of the second example (FIG. 13) of the sounding control mode process.
00, the change speed of the sensor data SD1 to SD6 itself is calculated, and in step 703 of the first example and steps 803 and 805 of the second example, the value itself of the sensor data SD1 to SD6 and the sensor data You may make it compare the magnitude relationship with an absolute value.

Further, in this embodiment, as shown in FIG. 4, different tone colors are assigned to the left and right shoulders and elbows for "stretching motion" and "bending motion", respectively. The same tone color is assigned to both "stretching" and "bending". However, not limited to this, the same tone color is assigned to both "stretching" and "bending" for the shoulders and elbows, or "stretching" for the wrist.
Different tone colors may be assigned to the "bending action" and the "bending action". Also, for all shoulders, elbows and wrists,
Different tone colors may be assigned to the "stretching action" and the "bending action", or the same tone color may be assigned to the "stretching action" and the "bending action".

Further, in this embodiment, timbres are assigned to the "stretching motion" and "bending motion" of the joints of the left and right shoulders, elbows and wrists, and angle sensors are attached to these joint parts. However, in place of some or all of these joints, or in addition to these joints, timbres are assigned to the "stretching motion" and "bending motion" of other joints, and an angle sensor is attached to the other joint parts. It may be attached.

Further, in this embodiment, a program for executing the tone generation control processing and other processing is stored in the microcomputer in the belt unit, and the signal from the grip unit is transmitted to the belt unit so that the belt unit can operate. These processes are being executed. However, it is not limited to this, and these processing programs are stored in the microcomputer of the sound source device itself instead of the belt unit,
A signal from the grip unit may be directly transmitted to the sound source device and the sound source device may execute these processes.

In this embodiment, an angle sensor for detecting the bending angle of the joint is provided as a sensor for detecting the bending amount of the joint. However, not limited to this,
For example, a bending amount of the joint may be detected by providing a sensor that detects the distance between two predetermined points near the joint part.

[0044]

As described above, according to the musical sound control apparatus of the present invention, the bending amount of the joint is less than the first bending amount and the bending amount of the joint exceeds the second bending amount. A tone color is assigned to each of two states, that is, a state, and it is instructed that a tone should be generated in any of the states. Therefore, when the same timbre is assigned to the two states (that is, the first timbre and the second timbre are the same timbre), the tempo is quickly played based on the movement of one joint. It has an excellent effect that it can be easily performed. Also, those 2
Different tones are assigned to the streets (that is, the first and second tones are different tones)
In this case, there is an excellent effect that it becomes possible to perform a performance using many kinds of tone colors based on the movement of a limited number of joints.

[Brief description of drawings]

FIG. 1 is a view showing a state in which a musical sound control device according to an embodiment of the present invention is mounted on a player's body.

FIG. 2 is a front view showing an external configuration of a grip unit of the musical sound control device of FIG.

FIG. 3 is an overall configuration block diagram of the musical sound control device of FIG.

FIG. 4 is a diagram showing an example of data stored in the ROM of FIG.

5 is a flowchart showing an example of a main routine executed by the microcomputer shown in FIG.

FIG. 6 is a flowchart showing an example of processing executed by the microcomputer shown in FIG.

FIG. 7 is a flowchart showing an example of processing executed by the microcomputer of FIG.

FIG. 8 is a flowchart showing an example of processing executed by the microcomputer of FIG.

9 is a flowchart showing an example of processing executed by the microcomputer shown in FIG.

FIG. 10 is a flowchart showing an example of processing executed by the microcomputer of FIG.

11 is a flowchart showing an example of processing executed by the microcomputer shown in FIG.

FIG. 12 is a flowchart showing an example of processing executed by the microcomputer of FIG.

FIG. 13 is a flowchart showing an example of processing executed by the microcomputer shown in FIG.

[Explanation of symbols]

 S1 to S6 Angle sensor GUL, GUR Grip unit BU Belt unit 10, 11 Detection circuit 12 Bus 13 Microcomputer section 14 Display 14 15 Panel switch group 16 Interface 17 CPU 18 ROM 19 RAM 20 Timer

Claims (11)

[Claims] 1. A sensor for detecting a bending amount of a joint of a human body, and a bending amount detected by at least the sensor is a first predetermined value.
Is instructed to generate a predetermined first tone color on the condition that the bending amount is less than the predetermined bending amount, and at least the bending amount detected by the sensor exceeds the predetermined second bending amount. And a tone control device for instructing the generation of the second tone color. 2. The sound generation control means sets a first threshold value between a lower limit bend amount representing a fully extended state of the joint and an upper limit bend amount representing a fully extended state of the joint. A second threshold value that is larger than the first threshold value is set, the first threshold value is the first bending amount, and the second threshold value is the second bending amount. 1. The musical sound control device according to 1. 3. The sound generation control means sets the minimum value of the minimum value and the maximum value of the bending amount detected by the sensor when the operator who attaches the sensor bends and extends the joint to the lower limit of bending. The musical sound control device according to claim 2, wherein the musical tone control device is used as a quantity, and a maximum value is used as the upper limit bending amount. 4. The minimum value and the minimum value only when the difference between the maximum value and the minimum value is greater than a certain value and a predetermined reference value exists between the minimum value and the maximum value. The musical sound control device according to claim 3, wherein maximum values are used as the lower limit bending amount and the upper limit bending amount, respectively. 5. The sound generation control means is provided with at least the first bending amount detected by the sensor, and is changed to a state where the bending amount is less than the first bending amount. On the other hand, the generation of a tone color is instructed, and on the other hand, the second tone color of the second tone color is conditioned on the condition that at least the bending amount detected by the sensor is changed from the second bending amount or less to a state exceeding the bending amount. The musical sound control device according to any one of claims 1 to 4, wherein the musical sound control device is for instructing generation. 6. The sound generation control means is configured such that at least the bending amount detected by the sensor is less than the first bending amount, and the temporal change of the bending amount is stopped. On the other hand, on the other hand, the second bending amount detected by the sensor is in a state in which the bending amount exceeds the second bending amount, and the temporal change of the bending amount is stopped. 5. The musical tone control apparatus according to claim 1, which is for instructing the generation of a tone color. 7. The tone control according to claim 5, wherein the generation of the first and second timbres is instructed further on condition that the temporal change of the bending amount detected by the sensor is equal to or larger than a predetermined magnitude. apparatus. 8. The first and second tone colors are generated under the condition that the temporal change of the bending amount detected by the sensor before the temporal change of the bending amount stops is equal to or larger than a predetermined magnitude. 7. The musical tone control device according to claim 6, wherein the musical tone control device instructs. 9. The musical sound control device according to claim 1, wherein the sensor is an angle sensor attached to the joint portion for detecting a bending angle of the joint. 10. The musical tone control apparatus according to claim 1, wherein the first timbre and the second timbre are timbres different from each other. 11. The musical tone control apparatus according to claim 1, wherein the first timbre and the second timbre are the same timbre.