WO2023120118A1

WO2023120118A1 - Musical sound control device, musical sound control system, and musical sound control program

Info

Publication number: WO2023120118A1
Application number: PCT/JP2022/044591
Authority: WO
Inventors: 克瀬戸口; 令央藤井; 亮平小林
Original assignee: カシオ計算機株式会社
Priority date: 2021-12-22
Filing date: 2022-12-02
Publication date: 2023-06-29

Abstract

[Problem] To provide a musical sound control device, a musical sound control system, and a musical sound control program, whereby musical sound can be controlled, and a musical sound control state can be switched without carrying out a switching operation, while providing a configuration in which musical sound can be controlled by moving a musical instrument. [Solution] A musical sound control device comprises: a force sensor that detects tension generated between an electric guitar and a guitar strap; and a control unit. The control unit executes a switching process for switching a signal output mode between a first mode and a second mode according to whether a change in a detected value detected by the force sensor is a prescribed change. With the musical sound control device, musical sound can be controlled and a musical sound control mode can be switched by an action such as the performer intentionally pulling on the guitar strap, without separately providing a switching device.

Description

Musical tone control device, musical tone control system, and musical tone control program

The present invention relates to a musical tone control device, a musical tone control system, and a musical tone control program.

Conventionally, a sensor or the like is incorporated between a musical instrument and a strap for the player to hold the musical instrument, and the sensor or the like detects the force generated when the player pulls the strap, and responds to the detected value. A technique has been proposed for outputting a signal for controlling musical tones. For example, Patent Literature 1 discloses a portable electronic musical instrument in which a strap incorporates a pressure sensor or an elongation detection sensor. In this portable electronic musical instrument, by moving the instrument to apply pressure or stretch the strap, a signal for controlling the tone is output according to the sensor detection value, and pitch bend, modulation amount, volume, etc., can be controlled. It can be carried out. Therefore, it is possible to control musical tones while holding the musical instrument with both hands without performing a switching operation.

Japanese Utility Model Laid-Open No. 59-060692

Regarding control of musical tones, for example, in an effector connected between a guitar and an amplifier, in addition to controlling various parameters in the effector, there are cases where it is desired to switch the effector itself on and off, or to switch to another type of effector. . However, in the portable electronic musical instrument disclosed in Patent Document 1, although it is possible to control musical tones while holding the musical instrument with both hands, it is not possible to switch the manner of controlling musical tones, such as switching the effectors themselves on and off. I didn't. For this reason, it is necessary to separately provide a switching device for switching the control mode of musical tones, and perform the switching operation.

The present invention provides a musical tone control apparatus and a musical tone control system capable of controlling the musical tones and switching the control mode of the musical tones without performing a switching operation while having a configuration capable of controlling the musical tones by moving the musical instrument. , and a musical tone control program.

A musical tone control device according to one aspect of the present invention includes a detection unit that detects tension generated between a musical instrument and a musical instrument holder, and a control unit. is a predetermined change, a switching process is executed to switch the output mode of the signal between the first mode and the second mode.

A musical tone control system according to one aspect of the present invention includes a first detection section that detects tension generated between a musical instrument and a musical instrument holder, and a first control section, wherein the detection detected by the first detection section A first control device that outputs a value, a depressing section that can be pressed, a second detection section that detects the depressing operation of the depressing section, and a second control section. and a second control device for controlling a signal, wherein the second control unit changes the control mode of the signal to the first mode when the second detection unit detects the pressing operation of the pressing unit. and the second mode.

According to one aspect of the present invention, there is provided a musical tone control program, in which a computer of a musical tone control apparatus comprising a detection section for detecting tension generated between a musical instrument and a musical instrument holder is provided with a predetermined change in the detection value detected by the detection section. A switching process is executed to switch the output mode of the signal between the first mode and the second mode depending on whether or not there is a change.

According to the present invention, a musical tone control apparatus capable of controlling musical tones and switching control modes of musical tones without performing a switching operation while having a configuration capable of controlling musical tones by moving a musical instrument. A control system and a musical tone control program can be provided.

1 is a schematic diagram showing a performance system in which the musical tone control device according to the first embodiment is used; FIG. 1 is an enlarged perspective view of a musical tone control device according to a first embodiment; FIG. 2 is an exploded perspective view showing the internal structure of the musical tone control device according to the first embodiment; FIG. 2 is a block diagram showing the electrical configuration of the musical tone control device according to the first embodiment; FIG. It is an example of a waveform that satisfies a predetermined change in the first embodiment. 4 is a flowchart showing sensor processing executed by a control unit in the first embodiment; FIG. 11 is a schematic diagram showing a performance system in which a musical tone control device according to a second embodiment is used; 9 is a flowchart showing sensor processing executed by a control unit in the second embodiment; FIG. 11 is a schematic diagram showing a performance system using a musical tone control system according to a third embodiment; It is a block diagram which shows the electrical structure of the 1st control apparatus in 3rd Embodiment. It is a block diagram which shows the electrical structure of the 2nd control apparatus in 3rd Embodiment. It is a flow chart which shows processing which a sensor side control part performs in a 3rd embodiment. FIG. 11 is a flow chart showing processing executed by a stomp-side control section in the third embodiment; FIG.

(First embodiment)
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. In the performance system 1A shown in FIG. 1, the musical tone control device 10 according to the first embodiment includes an electric guitar (instrument) 200 and a guitar strap (instrument strap) worn by a performer (user) to hold the electric guitar 200 on the shoulder. holder) 210. The electric guitar 200 has a strap pin 15 (see FIG. 2) provided on one end side (head side) of the body to which the musical tone control device 10 is connected, and a strap pin (not shown) provided on the other end side of the body. A guitar strap 210 is connected. When playing the electric guitar 200, the electric guitar 200 is connected to a well-known sound processor (effect device) 100 via a shielded cable 220 or the like.

The sound processor 100 is a multi-effector, and includes an electrical signal input section 110, an effect section 120, an electrical signal output section 130, a first control signal input section 140A, a second control signal input section 140B, and the like. The electrical signal input section 110 receives the electrical signal output from the electric guitar 200 . The electrical signal output section 130 is connected to a known guitar amplifier 300 and outputs electrical signals to the guitar amplifier 300 . The effect section 120 applies various effects such as modulation to the electric signal output from the guitar amplifier 300, and changes parameters of the effect effect according to a control signal from the musical tone control device 10, which will be described later.

The first control signal input section 140A is an input section to which an expression pedal is connected, for example, to receive input from the expression pedal, and the first receiving device 80A is connected. The first receiving device 80A outputs the detected value as a voltage value to the sound processor 100 side in the same manner as a standard jack of a known expression pedal, and is connected to the first control signal input section 140A. The second control signal input section 140B is an input section to which MIDI messages such as program change messages and pitch bend messages are input by connecting, for example, a MIDI device. A program change number for the program change mode is preset in the sound processor 100 .

Communication is performed between the musical tone control device 10 and the first receiving device (receiving device) 80A by wireless communication means such as BLE (Bluetooth Low Energy (registered trademark)). The wireless communication means is not limited to BLE, and may be, for example, WiFi, FM transmitter, or infrared communication. The first receiving device 80A receives the control signal output from the musical tone control device 10 by the wireless communication means, and inputs it to the first control signal input section 140A of the sound processor 100 as an operation value of the expression pedal.

Next, the configuration of the musical tone control device 10 will be described. As shown in FIG. 2, the musical tone control device 10 has a vertically long rectangular box shape. In the following description, the musical tone control device 10 is connected between the electric guitar 200 and the guitar strap 210, and the guitar strap 210 side (shoulder side, upper left side in FIG. 2) in a state where the player puts the guitar strap 210 on the shoulder is the upper side. , the opposite side (the guitar side, the lower right side in FIG. 2) is the lower side, the head side of the electric guitar 200 (the player's left side, the upper right side in FIG. 2) is the left side, and the other side (the player's right hand side) is the left side. 2) is the right side, the front side of the electric guitar 200 (the front side in FIG. 2) is the front side, and the opposite side is the rear side.

The musical tone control device 10 includes a box-shaped case 20 as a device main body, a connection button portion 11 connected to the upper side of the case 20, and a connection ring portion 12 connected to the lower side of the case 20. . The connection button portion 11 is a flat plate member extending short in a substantially flat plate shape, and is connected to one end of the first shaft 31 exposed from the upper side of the case 20 via a first connection shaft 31d (see FIG. 3). . The connection button portion 11 is rotatably connected to the first shaft 31 about the shaft axis and rotatably connected to the first connection shaft 31d. A connection button 11a is provided on the front side of the upper end portion of the connection button portion 11, and the connection button 11a is buttoned to a circular opening (not shown) on the slit 211 provided at one end of the guitar strap 210. , the musical tone control device 10 and the guitar strap 210 are connected.

The connection ring portion 12 is a flat plate member extending short in a substantially flat plate shape, and is connected to one end of the second shaft 32 exposed from the lower side of the case 20 via a second connection shaft 32d (see FIG. 3). there is The connection ring portion 12 is connected rotatably around the shaft axis of the second shaft 32 and rotatably around the axis of the second connection shaft 32d. A connection opening 12a is provided in a substantially central portion of the connection ring portion 12, and a strap pin 15 provided on one end side of the body of the electric guitar 200 is fitted into the connection opening, whereby the musical tone control device 10 and the electric guitar 200 are connected. Between the electric guitars 200 is connected.

As shown in FIG. 3, the case 20, which is the main body of the apparatus, has a front case 21 forming a front portion of the case 20 and a rear case 22 forming a rear portion of the case 20. Various members are accommodated between 21 and the rear case 22 . The front side case 21 has an annular inclined portion 21a with a C-chamfered outer peripheral edge portion of the front surface 21c. A substantially upper half region (substantially U-shaped region) of the inclined portion 21a serves as an indicator portion 21b made of a translucent material. Four button openings 21d for exposing four button portions 42, which will be described later, to the outside are provided in the upper portion of the front surface 21c of the front case 21, respectively.

A board 40 is accommodated inside the front case 21 . On the substrate 40, nine LEDs (informing unit, first informing unit) 41 are provided at equal intervals at locations corresponding to the indicator portions of the front case 21, and LEDs are provided at locations corresponding to the button openings 21d of the front case 21. Four button portions 42 provided respectively and a control portion 50 are mounted. The light emission mode of each LED 41 is controlled by the control unit 50 . Light emitted from each LED 41 passes through the indicator portion 21b and is visually recognized by the performer or the like.

Each button section 42 is configured to receive a press operation by the performer. Each button unit 42 has a function of turning on or off the power of the musical tone control device 10, a function of accessing the Bluetooth (registered trademark) pairing function, a function of inverting the phase of the musical tone, Various functions such as a function for setting a MAX value, which will be described later, are assigned.

A force sensor (detector, first detector) 30 is accommodated inside the rear case 22 . Further, a battery accommodating portion (not shown) is provided on the rear side of the rear case 22 . A battery 25 for supplying power to the musical tone control device 10 is accommodated in the battery accommodating portion, and the battery accommodating portion is closed by attaching a battery cover 22b.

The force sensor 30 is composed of a load cell 38 , a first metal plate 33 , a second metal plate 34 , a first shaft 31 and a second shaft 32 . The load cell 38 is made of a rectangular parallelepiped metal strain-generating body, and is arranged in the lower part inside the rear case so as to extend in the left-right direction. A sensor device such as a strain gauge (not shown) is provided at the central portion of the load cell 38 in the left-right direction. The first metal sheet 33 is a sheet metal member having a substantially S-shape when viewed from the side. The second sheet metal 34 is similarly formed of a sheet metal member having a substantially S-shape when viewed from the side, and its left upper surface is in contact with the lower surface of the left end portion of the load cell 38 and fixed. The left side portion of the first metal plate 33 and the right side portion of the second metal plate 34 face each other with the center portion of the load cell 38 in the left-right direction interposed therebetween.

The first shaft 31 is a substantially cylindrical shaft-shaped member, and is arranged on the upper side of the first metal plate 33 so as to extend in the vertical direction. The upper end of the first shaft 31 is exposed above the rear case 22 and is rotatably connected to the first connection shaft 31d around the first connection shaft 31d. The lower end of the first shaft 31 is connected to the left portion of the first metal plate 33 so as to be rotatable around the axis of the first shaft 31 . The second shaft 32 is a substantially cylindrical shaft-like member, and is arranged below the second metal plate 34 so as to extend in the vertical direction. The lower end of the second shaft 32 is exposed below the rear case 22 and is connected to the second connecting shaft 32d so as to be rotatable around the second connecting shaft 32d. The upper end of the second shaft 32 is connected to the right side portion of the second metal plate 34 so as to be rotatable around the axis of the second shaft 32 .

Here, the tension generated between the electric guitar 200 and the guitar strap 210 is applied to both the first shaft 31 and the second shaft 32 via the connection button portion 11 and the connection ring portion 12 . The load cell 38 is arranged with its longitudinal direction perpendicular to the axial direction of the first shaft 31 and the second shaft 32 . Therefore, when tension is applied between the first shaft 31 and the second shaft 32 by, for example, the player pulling the guitar strap 210, the sensor device provided in the load cell 38 measures the amount of elongation of the load cell 38, It is processed by a control unit (not shown) included in 38 and converted into a tension value (detected value). In this way, force sensor 30 can detect the tension generated between electric guitar 200 and guitar strap 210 .

Next, the electrical configuration of the musical tone control device 10 will be described with reference to FIG. The musical tone control device 10 is entirely controlled by a control section 50 mounted on the board 40 . The control unit 50 includes an arithmetic processing unit 51 configured by a computer such as a CPU. The arithmetic processing unit 51 includes a notification processing unit 52, a storage unit 53, an input unit 54, an instruction receiving unit 55, an output processing unit 56, a first determination processing unit 57, a second determination processing unit 58, a switching processing unit 59, and the like. It is connected.

The notification processing unit 52 is configured to notify various types of information to the performer through the indicator unit 21b by controlling the light emission mode of each LED 41. Specifically, the notification processing unit 52 executes notification processing for notifying the performer of information by changing the light emission color, light emission intensity, and light emission interval of the LEDs 41, or by changing the light emission positions of the nine LEDs 41. do. For example, a blue light is turned on when a weak tension is applied to the force sensor 30, a green light is turned on when a medium tension is applied, and a red light is turned on when a strong tension is applied. can be lit. As a result, the player can be notified of the degree of tension applied to the force sensor 30 . Note that the notification processing unit 52 may have a built-in speaker for notifying information to the performer.

The storage unit 53 is composed of an EEPROM (Electrically Erasable Programmable ROM) that stores programs for controlling the CPU, etc., and a flash memory that temporarily stores various data 53B. The storage unit 53 stores a program (musical tone control program) 53A for executing sensor processing, which will be described later. The storage unit 53 also stores data 53B such as a neutral value, a MAX value (predetermined threshold value), a Δt value (predetermined time), and the like, which will be described later.

The input unit 54 is configured to receive the detection signal (detection value) output from the force sensor 30 described above. The instruction receiving section 55 is configured to receive various instructions from the performer by pressing the button section 42 .

The output processing unit 56 outputs a signal (hereinafter referred to as "control signal") for controlling the musical tone according to the detection value of the force sensor 30 to the first receiving device 80A side. The control signal is output according to the currently set output mode. The output mode here means, for example, an output mode (first mode) in which a control signal is output (hereinafter referred to as an "output ON state"), and a control signal is not output regardless of whether or not the force sensor 30 detects it. output mode (second mode) (hereinafter referred to as "output off state"); output mode (first mode) for outputting MIDI messages related to program change (hereinafter referred to as "program change mode"); An output mode (second mode) for outputting a MIDI message (hereinafter referred to as "pitch bend mode"). In the musical tone control apparatus 10 according to the first embodiment, the output mode of the control signal is set to either an output-on state or an output-off state. The currently set output mode of the control signal is notified to the performer by the light emission mode of the LED 41 .

The first judgment processing unit 57 judges whether or not the detection value of the force sensor 30 has changed. When there is a change in the detected value of the force sensor 30, the second judgment processing section 58 judges whether the change is a predetermined change conforming to the waveform W shown in FIG. 5, for example. The switching processing unit 59 switches the output mode of the control signal in the output processing unit 56 when the change in the detection value of the force sensor 30 is a predetermined change.

Here, the calibration of the musical tone control device 10 will be explained. The calibration referred to here means the detection of sensors that vary due to various factors, such as variations between individual force sensors 30, the weight of the electric guitar 200 connected to the musical tone control device 10, and the way the performer applies force. This is an operation for preliminarily correcting variations in values. This calibration is executed when the power of the musical tone control device 10 is turned on for the first time, or when the performer operates the button section 42 of the musical tone control device 10 to give an instruction to execute the calibration. . The operation of the button section 42 for executing calibration is not particularly limited, and for example, it may be executed by pressing a specific button section 42 for a long time (for example, 3 seconds or longer).

In the calibration, the control unit 50 gives instructions to the performer by changing the light emission mode of the LED 41 or by outputting sound from the built-in speaker. When the calibration is executed, the controller 50 instructs the player not to apply force to the electric guitar 200 . By maintaining the state in which no force is applied for several seconds, the control unit 50 stores the average value of the detection values of the force sensor 30 during that time in the storage unit 53 as a neutral value. The neutral value is a detected value where only the weight of the electric guitar 200 is detected when the player puts the electric guitar 200 over his shoulder and does not apply any force to the electric guitar 200 .

Next, the control unit 50 instructs the performer to apply the maximum force to the electric guitar 200 that he wishes to use as performance data during the performance with the electric guitar 200 . The maximum force here does not necessarily mean that the force is applied to the limit, but means the force that the performer can apply without difficulty during the performance. By maintaining this state of applying the maximum force for several seconds, or by pressing down the button unit 42 assigned the function of setting the MAX value in the state of applying the maximum force, the control unit 50 , the average value of the detection values of the force sensor 30 during that period is stored in the storage unit 53 as the MAX value. The MAX value is a detected value when the performer applies the maximum force that the player wants to output as a detected value. The above operation completes the calibration.

Next, with reference to FIG. 5, an example of a waveform that satisfies a predetermined change, which will be described later, will be described. The waveform that satisfies the predetermined change referred to here is a waveform that satisfies all of the conditions required when the second determination processing section 58 of the control section 50 determines that the "predetermined change" has occurred. Specifically, the neutral value, the MAX value, the Δt value, etc. shown in the waveform W in FIG. be done. The vertical axis in FIG. 5 indicates the detection value (volts) detected by the force sensor 30, and the horizontal axis indicates time (milliseconds). A waveform W indicates the neutral value and the MAX value set by the calibration described above. A waveform W represents an example of a waveform in which the detection value of the force sensor 30 exceeds the MAX value from the neutral value state and drops below the MAX value within Δt milliseconds. Δt is, for example, 500 (0.5 seconds). The value of .DELTA.t may be preset in the musical tone control device 10, or may be appropriately set by the performer.

Specifically, the waveform W is a state in which the player lifts the electric guitar 200 from a state in which no force is applied to the electric guitar 200, and then lifts the electric guitar 200 once and then releases the electric guitar 200 to the position where the guitar strap 210 restricts the electric guitar 200. A force exceeding the MAX value is momentarily applied to the force sensor 30 by dropping the electric guitar 200, pushing it downwards, or pushing it upwards, and immediately puts the electric guitar 200 into a state where no force is applied. It is an example of a waveform generated by a series of actions of returning. The control unit 50 of the musical tone control device 10 determines that the change in the detected value of the force sensor 30 is a predetermined change when the performer intentionally performs a series of actions represented by the waveform W. , a switching process to be described later is executed.

In the musical tone control device 10 of this embodiment, the performer moves the electric guitar 200 during a performance or the like, and tension acts between the connection button portion 11 and the connection ring portion 12, and the force sensor 30 detects the tension. , a process for controlling the output mode of the control signal (hereinafter referred to as "sensor process") is executed. The sensor processing executed by the control section 50 of the musical tone control apparatus 10 according to the first embodiment will be described below with reference to FIG. The sensor processing is started when the musical tone control device 10 is powered on. In the sensor process, the control unit 50 first executes the calibration described above (step S10). When the calibration ends, the control section 50 proceeds to step S12.

In step S12, the first determination processing unit 57 of the control unit 50 determines whether or not there is a change in the detection value of the force sensor 30 from the detection value of the force sensor 30 input from the force sensor 30 to the input unit 54. Make a judgment (first judgment processing). Specifically, the first determination processing unit 57 compares the detected value of the force sensor 30 input last time and the detected value of the force sensor 30 input this time. If there is a change from the detected value input last time, the first determination processing unit 57 determines that there is a change in the detected value (S12: YES), and proceeds to step S14. When the change in the detected value exceeds the MAX value read from the storage unit 53, the control unit 50 counts the elapsed time after exceeding the MAX value. Then, when the detected value changes below the MAX value after the detected value changes to exceed the MAX value, the control unit 50 stops counting the elapsed time, and stores the counted elapsed time in the storage unit 53. Memorize.

On the other hand, if there is no change from the detected value input last time, the first determination processing unit 57 determines that the detected value has not changed (S12: NO), and repeats the process of step S12. The cycle in which the first determination processing unit 57 repeatedly executes the process of step S12 is not particularly limited, and is executed, for example, at intervals of several milliseconds.

In step S14, the second judgment processing section 58 of the control section 50 judges whether or not the change in the detection value of the force sensor 30 is a predetermined change conforming to the waveform W shown in FIG. 2 judgment processing). Specifically, (1) the detected value input last time is greater than the MAX value read from the storage unit 53, and (2) the detected value input this time is greater than the MAX value read from the storage unit 53. If the value is small and (3) the elapsed time read from the storage unit 53 is equal to or less than Δt, the second determination processing unit 58 determines that the change is a predetermined change. (S14: YES), and the process proceeds to step S16. If any one of the above conditions is not satisfied, the second judgment processing section 58 judges that the change is not the predetermined change (S14: NO), and proceeds to step S24.

In step S16, the switching processing section 59 of the control section 50 determines whether or not the output mode of the control signal is the output ON state. If the output mode of the control signal is the output ON state (S16: YES), the switching processing unit 59 switches and sets the output mode of the control signal to the output OFF state (switching process) (step S18), and proceeds to S20. do. If the output mode of the control signal is not the output ON state, that is, if the output mode of the control signal is the output OFF state (S16: NO), the switching processing unit 59 switches the output mode of the control signal to the output ON state and sets it. (switching process) (step S22), and the process proceeds to step S20. When the output mode of the control signal is switched, the notification processing section 52 of the control section 50 notifies the player of the newly set output mode by changing the light emission mode of the LED 41 .

In step S24, the control unit 50 determines whether or not the control signal is output in the output ON state. If the output mode of the control signal is the output ON state (S24: YES), the output processing unit 56 of the control unit 50 outputs the control signal according to the detected value of the force sensor 30 that is input this time detected in step S12. (output processing) (step S26), and the process proceeds to step S20. If the output mode of the control signal is not the output ON state, that is, if the output mode of the control signal is the output OFF state (S24: NO), the controller 50 proceeds to step S20.

At step S20, the control unit 50 determines whether or not the musical tone control device 10 is powered off. When the controller 50 determines that the musical tone controller 10 has been powered off (S20: YES), it ends the sensor processing. If the control unit 50 determines that the musical tone control device 10 is not powered off (S20: NO), it returns to step S12 and executes the processing of step S12. In the musical tone control device 10, sensor processing is executed as described above.

As described above, in the musical tone control apparatus 10 according to the present embodiment, the player generates tension between the electric guitar 200 and the guitar strap 210 by stretching the guitar strap 210 during a performance or the like, thereby generating force. A control signal for controlling musical tones is output to the sound processor 100 side in accordance with the detection value detected by the sensor 30 . Furthermore, when the change in the detection value detected by the force sensor 30 is a predetermined change that satisfies the above conditions, the output mode of the control signal is switched between the output on state and the output off state. Therefore, by intentionally changing the way in which the guitar strap 210 is pulled by the player, the player can switch the output state of the control signal between the output-on state and the output-off state at any timing. . In this manner, the musical tone control apparatus 10 can control musical tones and switch the control mode of musical tones by intentionally pulling the guitar strap 210 by the performer without providing a separate switching device.

Further, in the musical tone control device 10, the switching process executed by the control section 50 changes the output mode to the output off state on the condition that the output mode is the output on state, and changes the output mode to the output off state. , the output mode is changed to the output-on state. As a result, the player intentionally pulls the guitar strap 210 or the like to change the detected value of the force sensor 30 to a predetermined change, thereby alternately switching between the output-on state and the output-off state.

Further, in the musical tone control device 10, when the control section 50 determines that the change in the detection value of the force sensor 30 is not a predetermined change, the output processing section 56 outputs on the condition that the output state is the output ON state. The control signal is output in the ON state, and the control signal is output in the output OFF state on condition that the output mode is the output OFF state. As a result, even if the detection value of the force sensor 30 is changed by pulling the guitar strap 210 accidentally or intentionally while the output is off, the control signal is not output.

In addition, in the musical tone control device 10, the output ON state, which is the first mode, is an output mode in which the control signal is output, and the output OFF state, which is the second mode, is an output mode in which the control signal is not output. This makes it possible to realize a specific configuration for switching the output mode between the output-on state and the output-off state.

In the musical tone control device 10, the controller 50 determines that the change is a predetermined change when the detected value of the force sensor 30 changes to a value smaller than the MAX value within Δt seconds after changing to a value larger than the MAX value. do. This makes it possible to provide the specific conditions required to satisfy a given change.

Further, the musical tone control device 10 is provided with an LED 41 for informing the performer that tension has been generated. has a notification processing unit 52 for executing Therefore, the performer can visually recognize the change in the control signal for the musical sound and the change in the output mode of the control signal for the musical sound according to the detection value of the force sensor 30 .

In addition, the musical tone control device 10 can wirelessly communicate with the first receiving device 80A connected to the sound processor 100 that imparts effects to the musical tones of the electric guitar 200. Thus, it is possible to provide a specific configuration for realizing the performance system 1A using the musical tone control device 10. FIG.

Further, the program 53A stored in the storage unit 53 of the control unit 50 causes the arithmetic processing unit 51 of the musical tone control device 10, which includes the force sensor 30 for detecting the tension generated between the electric guitar 200 and the guitar strap 210, to: A switching process is executed to switch the output mode of the control signal between the first mode and the second mode depending on whether the change in the detection value detected by the force sensor 30 is a predetermined change. This provides specific processing to be executed by the program in order to realize a configuration that allows the performer to intentionally pull the guitar strap 210, for example, to control the musical tones and switch the control mode of the musical tones. be able to.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. FIG. In addition, in description of 2nd Embodiment, the description is abbreviate|omitted or simplified about the structure similar to 1st Embodiment. 2nd Embodiment differs from 1st Embodiment in the output aspect of the control signal switched in sensor processing. As shown in FIG. 7, in a performance system 1B according to the second embodiment, a second receiving device (receiving device) 80B is connected to a second control signal input section 140B. Also, the output processing section 56 in the control section 50 of the musical tone control device 410 outputs a MIDI message (signal) based on the detection value of the force sensor 30 to the second receiving device 80B side.

Communication is performed between the musical tone control device 410 and the second receiving device 80B by wireless communication means such as the BLE/MIDI (MIDI over Bluetooth LE) protocol. The second receiving device 80B receives the MIDI message output from the musical tone control device 10 by the wireless communication means, and inputs it to the second control signal input section 140B. MIDI messages output from the tone control device 10 include, for example, program change messages for increasing or decreasing program change numbers in program change mode and pitch bend messages in pitch bend mode for outputting continuous values. In the musical tone control device 410 according to the second embodiment, the MIDI message output mode is set to either the program change mode state or the pitch bend mode state.

Here, program change messages in MIDI are basically used to specify tone color numbers. For example, when a device such as a keyboard with a built-in GM sound source (General MIDI sound source) receives a program change message with a parameter set to 1, the device sets its own tone color number to 1 (acoustic grand piano tone color). If the parameter is number 41, the device sets its tone number to 41 (violin tone). Thus, the program change mode is a mode for setting tone color numbers.

In multi-effects, program change messages are often used to switch the effector's so-called patch number. A patch is a combination of multiple effectors. For example, as patch number 1, it is assumed that a combination of three effectors (distortion system) of distortion, wah, and noise gate is set. For patch number 2, it is assumed that a combination of three effectors (clean system) of compressor, chorus, and equalizer is set.

When the multi-effector receives a program change whose parameter is set to 1, the multi-effector sets a distortion patch with patch number 1. Next, when the multi-effector receives a program change whose parameter is set to 2, the multi-effector changes the patch from the distortion system to the clean system patch of patch number 2. FIG. Thus, a guitarist can use program change messages during a performance to switch the tone of the guitar from a distorted tone to a clean tone.

In the program change mode of this embodiment, the patch number of the multi-effector is increased or decreased. That is, 1 is added to the patch number stored as the data 53B of the musical tone control device 410, and the updated patch number is transmitted to the multi-effector sound processor 100 as a program change parameter, or 1 is subtracted from the patch number and updated. The received patch number is sent to the sound processor 100 as a program change parameter.

On the other hand, a pitch bend message in MIDI is a message that continuously changes the pitch of musical tones. A pitch bend message is a MIDI message that transmits and receives changes in pitch achieved by operating an operator called a pitch bend wheel (also called pitch bender) provided on a keyboard such as a synthesizer. The pitch bend message controls pitch change in steps of -8192 to 0 to +8191 using a 14-bit parameter. The range of pitch change is set by a MIDI message called a bend range message, which is different from the pitch bend message.

Pitch bend was originally devised to obtain the effect of a guitar's bending technique (Bend technique in English) on a keyboard. Therefore, with a guitar, it is possible to obtain a pitch bend effect to some extent depending on the playing style. Many multi-effectors have an effector called a pitch shifter. If you use a pitch shifter, you can raise the pitch by two notes at most by bending the guitar, but you can also raise the pitch by more than that, or even lower the pitch.

In the pitch bend mode of this embodiment, the pitch bend amount of the pitch shifter of the multi-effector is controlled by a pitch bend message. That is, the output value of the force sensor 30 is assigned to a numerical value from -8192 to +8191, which is transmitted to the multi-effector sound processor 100 as a parameter of the pitch bend message. The processor of the sound processor 100 that receives the pitch bend message sets the pitch value of the pitch shifter to a value according to the parameters of the received pitch bend message.

The sensor processing executed by the control unit 50 of the musical tone control device 410 according to the second embodiment will be described with reference to FIG. In the sensor process, the controller 50 first performs calibration (step S210). The calibration performed by the controller in step S210 is the same as the calibration performed by the controller 50 in step S10 in the first embodiment. Next, the control unit 50 outputs a program change message with the default program change number (patch number) as a parameter (step S211). This is to match the patch numbers set in the sound processor 100 and the tone control device 410 . A program change number, which is a parameter of a program change message, is hereinafter referred to as a "patch number". After the processing of step S211 is completed, the control unit 50 proceeds to step S212.

The processes of steps S212 and S214 in the sensor process are the same as the processes of steps S12 and S14 in the first embodiment, respectively, so description thereof will be omitted. When the second determination processing unit 58 of the control unit 50 determines in step S214 that the change is the predetermined change (S214: YES), the process proceeds to step S216, and if it is determined that the change is not the predetermined change (S214: NO). , the process proceeds to step S224.

In step S216, the switching processing section 59 of the control section 50 determines whether or not the MIDI message output mode is the program change mode. If the MIDI message output mode is the program change mode (S216: YES), the switching processing unit 59 switches the MIDI message output mode to the pitch bend mode state (switching process) (step S218), and proceeds to S220. do. If the MIDI message output mode is not the program change mode, that is, if the MIDI message output mode is the pitch bend mode (S216: NO), the switching processing unit 59 switches the MIDI message output mode to the program change mode. (Switching process) (step S222), the process proceeds to step S20. When the MIDI message output mode is switched, the control unit 50 notifies the player of the newly set output mode, as in the first embodiment.

At step S224, the control unit 50 determines whether or not the MIDI message output mode is the program change mode. If the output mode of the MIDI message is the program change mode (S224: YES), the output processing unit 56 of the control unit 50 outputs the program change message according to the currently input detection value of the force sensor 30 detected in step S212. Output (output processing) (step S226) and proceed to step S220.

The parameter of the program change message output by the output processing unit 56, that is, the patch number, is a number obtained by incrementing or decrementing the patch number output in step S211 and then updated in this process. Specifically, the control unit 50 stores and outputs a patch number obtained by adding or subtracting 1 to the current patch number in the storage unit 53 as a new patch number.

Whether the control unit 50 increments or decrements the patch number is determined by the detection value of the force sensor 30 according to the player's operation. In this embodiment, when the guitar 200 is pressed down and the detected value remains greater than the neutral value for a certain period of time (for example, 1 second), the controller 50 executes the increment operation. Similarly, when the guitar 200 is lifted and the detected value remains smaller than the neutral value for a certain period of time (for example, 1 second), the control section 50 executes the decrement operation. That is, the control unit 50 converts the detected value of the force sensor 30 into one of two values (discrete values) of a value corresponding to increment and a value corresponding to decrement, and converts one of the converted binary values. A program change message is output with the patch number incremented or decremented according to the parameter.

If the output mode of the MIDI message is not the program change mode, that is, if the output mode of the MIDI message is the pitch bend mode (S224: NO), the output processing unit 56 detects the current input force sensor 30 detected in step S212. A pitch bend message is output according to the value (output processing) (step S228), and the process proceeds to step S220.

Specifically, after the detection value of the force sensor 30 is converted into a digital value by an AD converter (not shown), the value is converted into a parameter range of the pitch bend message, that is, a numerical value from -8192 to 8191. For example, if the AD converter has 16-bit precision, the pitch bend parameter value is 14 bits, so the conversion to the parameter value can be calculated as 2 ¹⁴ ×detection value/2 ¹⁶ -8192. Alternatively, a conversion table may be used, or a calculation formula incorporating a correction such that the pitch bend parameter becomes 0 when the detected value of the force sensor 30 is near the neutral value may be employed. Any other conversion method can be adopted. Using the converted detection value of the force sensor 30 as a parameter, the output processing unit 56 outputs a pitch bend message.

At step S220, the control section 50 determines whether or not the musical tone control device 410 is powered off. When the controller 50 determines that the power of the musical tone controller 410 has been turned off (S220: YES), the sensor processing ends. If the control unit 50 determines that the musical tone control device 410 is not powered off (S220: NO), it returns to step S212 and executes the processing of step S212. In the musical tone control device 410, sensor processing is executed as described above.

As described above, in the musical tone control device 410 according to the second embodiment, when the performer stretches the guitar strap 210 to generate tension between the electric guitar 200 and the guitar strap 210, the force is generated. MIDI messages for controlling musical tones are output to the sound processor 100 side in accordance with the detection values detected by the sensor 30 . Furthermore, when the change in the detection value detected by the force sensor 30 is a predetermined change that satisfies the above conditions, the MIDI message output mode switches between the program change mode state and the pitch bend mode state. Therefore, by intentionally changing the way in which the guitar strap 210 is pulled by the player, the player can switch the MIDI message output mode between the program change mode state and the pitch bend mode state at any timing. can.

The program change mode, which is the first aspect, is a mode in which discrete values such as patch numbers can be controlled. In the second embodiment, the patch number is incremented or decremented, but it is also possible to control the state to turn it on or off. For example, MIDI control change message number 65 turns the portamento effect on and off. In the first mode, if control change number 65 is output, portamento is turned on when the guitar is pushed down, and the guitar is lifted. Switching operations such as portamento off can sometimes be realized without providing a separate operator.

The second aspect, the pitch bend mode, is a mode that can control changes in continuous values such as pitch. It is expressed as a "continuous value" in contrast to the case of controlling numbers such as number 1 and number 2, such as the change mode). Although the pitch vent message is output in the second embodiment, any MIDI message may be adopted as long as it is a MIDI message having continuous values as parameters. For example, the modulation depth of control change number 1 and the volume of control change number 7 may be used to control the modulation depth and volume value.

In this way, the musical tone control device 410 can perform musical tone control operations such as increasing/decreasing the number parameter and switching states such as ON/OFF by intentionally pulling the guitar strap 210 by the player without providing a separate switching device. , the control mode can be switched between musical tone control operation based on continuous numerical values.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. 9 to 13. FIG. In addition, in the description of the third embodiment, the description of the same configuration as that of the first embodiment will be omitted or simplified. In a performance system 3A shown in FIG. 9, a musical tone control system 510 according to the third embodiment comprises a first control device CD1 and a second control device CD2. The first control device CD1 has the same configuration as the musical tone control device 10 of the first embodiment except for the electrical configuration of the sensor-side control section (first control section) 550 provided therein. The first control device CD1 is a strap-type sensor in which a force sensor 30 is accommodated. An electric guitar (instrument) 200 and a guitar strap worn by a performer (user) on the shoulder to hold the electric guitar 200. (musical instrument holder) 210 is provided so as to be connected therewith.

The second control device CD2 is a so-called stompbox type effector and is placed at the player's feet or the like. The second control device CD2 includes a box-shaped housing 620, connection jack portions 622 provided on the left and right sides of the housing 620, and four substantially circular switches provided at the bottom of the front surface of the housing 620. 630 and four volume knobs 640 provided on the upper front surface of the housing 620 . The second control device CD2 also has a power switch (not shown). On the upper side of each switch section 630, four stomp side LEDs (second notification section) 630L are provided at locations corresponding to the respective switch sections 630, respectively. Each switch section 630 is capable of being pushed down, and is pushed down by, for example, being stepped on by the player's foot. Each volume knob 640 is rotatable, and is rotated by, for example, being pinched by the player's fingers.

One side of each connection jack section 622 is connected to the electric guitar 200 and the other side is connected to the guitar amplifier 300 via the shielded cable 220 or the like. The second control device CD2 takes in the electric signal output from the electric guitar 200 and outputs the taken in electric signal (signal) (hereinafter referred to as “output signal”) to the guitar amplifier 300 . The guitar amplifier 300 outputs the output signal output from the second control device as a musical tone.

Communication is performed between the first control device CD1 and the second control device CD2 by wireless communication means such as BLE (Bluetooth Low Energy (registered trademark)). The wireless communication means is not limited to BLE, and may be other wireless communication means. A signal relating to the detection value of the force sensor 30 (hereinafter referred to as "detection value signal") output (transmitted) from the first control device CD1 is input (received) to the second control device CD2. The second control device CD2 applies various effects to the output signal and changes the parameters of the effect to be applied to the output signal according to the detection value signal from the first control device CD1.

Next, the function of each switch section 630 of the second control device CD2 will be described. Each switch section 630 includes an effect switch 632, a lock switch 634, a wah switch 636, and a volume switch 638 in order from the left. The effect switch 632 is a switch that switches whether or not to apply various effects to the output signal by being pushed down. Specifically, the effect switch 632 is in a control mode (first mode) (hereinafter referred to as an "effect-on state") for imparting an effect effect to the output signal according to the detection value signal from the first control device CD1. ) and a control mode (second mode) in which no effect is applied (hereinafter referred to as “effect off state”). When the effect is on, the stomp side LED 630L corresponding to the effect switch 632 lights up.

The lock switch 634 is a switch that switches whether to hold the detected value signal or not by pressing it. Specifically, the lock switch 634 holds the detection value signal input at the time of the depression operation regardless of the change in the detection value signal output from the first control device CD1. A control mode (first mode) (hereinafter referred to as a "lock-on state") for controlling the output signal, and an output according to a change in the input detection value signal without holding the input detection value signal. It switches between a control mode (second mode) for controlling a signal (hereinafter referred to as "lock-off state"). In the lock-on state, the stomp-side LED 630L corresponding to the lock switch 634 lights up.

The wah switch 636 is a switch that switches whether or not to apply a wah effect to the output signal, that is, a filter effect with a frequency characteristic according to the detection value of the force sensor 30 when pressed. The volume switch 638 is a switch for switching whether or not to change the envelope of the output signal (musical tone volume) in accordance with the detection value of the force sensor 30 when pressed. Here, the wah switch 636 and the volume switch 638 are switches that operate exclusively, and one side is always turned off and the other side is turned on. When one side is in the off state, one side is pushed down to turn one side on and the other side is turned off, and when one side is in the on state, the other side is pushed down to turn the other side to the on state. As a result, one side is turned off.

Specifically, when the wah switch 636 is in the ON state, the volume switch 638 is in the OFF state, and the control mode (first mode) (hereinafter referred to as "wah effect imparting mode state"). On the other hand, when the volume switch 638 is on, the wah switch 636 is off, and the envelope of the output signal (tone volume) is changed according to the detected value signal from the first controller CD1 (second control mode). mode) (hereinafter referred to as "volume control mode state"). In the musical tone control system 510 according to the third embodiment, the musical tone control mode is set to either a wah effect imparting mode state or a volume control mode state.

Next, the function of each volume knob 640 of the second control device CD2 will be described. Each volume knob section 640 has a sense volume 642, a tone volume 644, a frequency volume 646, and a minimum volume adjustment volume 648 in order from the left. The sense volume 642 adjusts the sensitivity of the detection value of the force sensor 30 input from the first controller CD1. Specifically, the sense volume 642 is turned in one direction to increase the sensitivity for reflecting the detected value in the effect of the output signal, and turned in the other direction to increase the sensitivity of the detected value to the effect of the output signal. Decrease the sensitivity to be reflected in By reducing the sensitivity, it is possible to impart a fine change effect.

The tone volume 644 adjusts the timbre of the output signal. Specifically, the tone volume 644 is rotated in one direction to produce a round tone with a reduced high frequency range, and rotated in the other direction to produce a bright tone including high frequency components.

A frequency volume 646 adjusts the center frequency in the wah effect. The wah effect moves the resonant frequency of the bandpass filter around a set center frequency. Specifically, the frequency volume 646 is rotated in one direction to lower the center frequency and rotated in the other direction to raise the center frequency.

The minimum volume adjustment volume 648 sets the minimum volume when in the volume control mode. This setting corresponds to the volume when the detection value of the force sensor 30 is zero. Specifically, the minimum sound volume adjustment volume 648 is turned in one direction to set the minimum sound volume to 0. In this state, when the detection value of the force sensor 30 is 0, no sound is output. Each of the volume knobs 640 described above can be adjusted in advance before the performer performs.

Next, the electrical configuration of the first control device CD1 will be described with reference to FIG. The first control device CD1 is entirely controlled by a sensor-side control section 550 provided therein. The sensor-side control unit 550 has an arithmetic processing unit 551 configured by a computer such as a CPU. A sensor-side notification processing unit 552, a sensor-side storage unit 553, a sensor-side input unit 554, a sensor-side instruction reception unit 555, a sensor-side communication unit 556, an activation processing unit 557, and the like are connected to the arithmetic processing unit 551. A sensor-side input unit 554 and a sensor-side instruction receiving unit 555 have the same configurations as the input unit 54 and the instruction receiving unit 55 in the first embodiment, respectively, and description thereof will be omitted. In this embodiment, the LED provided on the side of the first control device CD1 is referred to as a sensor side LED (first notification unit) 41L in order to distinguish it from the stomp side LED 630L provided on the side of the second control device CD2. .

The sensor-side notification processing unit 552 is configured to notify the performer of various information by controlling the light emission mode of each sensor-side LED 41L. For example, red light can be turned on when the currently set control mode related to application of the effect effect is in the effect ON state, and blue light can be turned on when the effect is in the OFF state (first notification process). As a result, it is possible to notify the performer of the information (applying information) regarding the application of the effect effect to the currently set output signal. Further, for example, the nine sensor-side LEDs 41L can be illuminated with green light like a level meter according to the currently set output signal envelope (musical tone volume) (second notification processing). As a result, the performer can be notified of information (volume information) regarding the volume of the currently set musical tone.

Similar to the storage unit 53 of the first embodiment, the sensor-side storage unit 553 includes an EEPROM (Electrically Erasable Programmable ROM) that stores a program for controlling the CPU, and a flash memory that temporarily stores various data 553B. consists of The sensor-side storage unit 553 stores a program 553A for causing each process executed by the sensor-side control unit 550 to be executed.

The sensor-side communication unit 556 outputs (transmits) a signal related to the detection value of the force sensor 30 to the second control device CD2 as a detection value signal. Further, the sensor-side communication unit 556 inputs (receives) information regarding the application of the currently set effect effect and information regarding the currently set tone volume output from the second control device CD2. Further, the sensor-side communication unit 556 inputs (receives) a signal (activation signal) for turning on the power of the first control device CD1 output from the second control device CD2. Further, the sensor-side communication unit 556 outputs (transmits) information (remaining amount information) regarding the remaining battery capacity of the first control device CD1 to the second control device CD2 (fourth output processing). The remaining amount information may be output to the second control device CD2 at predetermined intervals, or may be output to the second control device CD2 when the remaining amount becomes equal to or less than a predetermined value.

The activation processing unit 557 executes activation processing for turning on the power of the first control device CD1. Specifically, in the first control device CD1, the CPU of the sensor-side control section 550 is put into a sleep state while the power is turned off, and only the sensor-side communication section 556 is turned on. Then, when the power of the first control device CD1 is turned off, the sensor-side communication unit 556 receives a signal (activation signal) for turning on the power of the first control device CD1 from the second control device CD2 ( received), the above startup process is executed.

Next, the electrical configuration of the second control device CD2 will be described with reference to FIG. The second control device CD2 is entirely controlled by a stomp-side control section 650 provided therein. The stomp-side control unit 650 includes an arithmetic processing unit 651 configured by a computer such as a CPU. The arithmetic processing unit 651 includes a stomp-side notification processing unit 652, a stomp-side storage unit 653, a stomp-side input unit (second detection unit) 654, a stomp-side instruction reception unit 655, a stomp-side communication unit 656, an effect unit (timbre control unit). unit) 657, an output unit (audio signal output unit) 658, a switching processing unit 659, and the like are connected. The electric circuit that constitutes the stomp-side control section 650 may be realized in an analog manner, or may be realized in a digital manner using a DSP (Digital Signal Processor).

The stomp-side notification processing section 652 is configured to notify the performer of various types of information in such a manner that the ON state or OFF state of each switch section 630 can be determined by controlling the lighting mode of each stomp-side LED 630L. It is For example, when the remaining battery capacity of the first control device CD1 is low, the four stomp-side LEDs 630L are all lit red at predetermined intervals, and when the remaining battery capacity is sufficient, the four stomp-side LEDs 630L are turned on. All of them can be turned on with blue light at intervals of (third notification process). This makes it possible to notify the performer of the information regarding the remaining battery capacity of the first control device CD1.

Like the storage unit 53 of the first embodiment, the stomp-side storage unit 653 includes an EEPROM (Electrically Erasable Programmable ROM) that stores programs for controlling the CPU, and a flash memory that temporarily stores various data 653B. consists of The stomp-side storage unit 653 stores a program 653A for executing each process executed by the stomp-side control unit 650 . The stomp-side storage unit 653 stores a flag relating to the on/off state of the effect switch 632 (hereinafter referred to as "effect flag"), a flag relating to the on/off state of the lock switch 634 (hereinafter referred to as "lock flag"), and a wah switch. 636 and volume switch 638 (hereinafter referred to as "wah/volume switching flag") are stored respectively.

The stomp-side input section 654 is configured to detect the pressing operation of each switch section 630 . The stomp-side instruction receiving section 655 is configured to receive various types of support from the performer by turning the volume knobs 640 .

The stomp-side communication unit 656 inputs (receives) the detection value signal output from the first control device CD1. In addition, the stomp-side communication unit 656 outputs (transmits) information regarding the application of the currently set effect effect to the first control device CD1 (first output process). The stomp-side communication unit 656 also outputs (transmits) information about the volume of the currently set tone to the first control device CD1 (second output processing). Also, the stomp-side communication unit 656 outputs (transmits) a signal (activation signal) for turning on the power of the first control device CD1 to the first control device CD1 (third output process). Further, the stomp-side communication unit 656 inputs (receives) information (remaining amount information) regarding the remaining battery capacity of the first control device CD1, which is output from the first control device CD1.

The effect unit 657 applies the various effects described above to the output signal and changes the parameter of the effect according to the detection value signal from the first control device CD1. The output section 658 is connected to a known guitar amplifier 300 via the connection jack section 622 and outputs an output signal to the guitar amplifier 300 . When the stomp-side input unit 654 detects that each switch unit 630 has been pressed down, the switching processing unit 659 switches from the first control device CD1 according to the function of the pressed switch unit 630. The control mode for controlling the output signal (musical tone) is switched according to the detected value signal.

Next, with reference to FIG. 12, the flow until the power of the first control device CD1 is turned on and the processing executed by the sensor-side control section 550 of the first control device CD1 will be described. As described above, in the first control device CD1, when the power is turned off, the CPU of the sensor-side control unit 550 is placed in the sleep state, and only the sensor-side communication unit 556 is on standby. . In this state, when the button portion 42 for turning on the first control device CD1 provided in the first control device CD1 is manually pressed down to turn on the power of the first control device CD1 (S310: YES), the start-up is performed. The processing unit 557 turns on the sensor-side control unit 550, and the sensor-side control unit 550 executes the process of step S316.

On the other hand, if the button portion 42 for turning on the first control device CD1 is not pressed (S310: NO) and the start signal is input from the second control device CD2 in the sensor side communication portion 556 (S312: YES ), the first control device CD1 is powered on (activation processing) (S314), the activation processing unit 557 turns on the sensor-side control unit 550, and the sensor-side control unit 550 executes the processing of step S316. . If the button portion 42 for turning on the first control device CD1 is not pressed and the activation signal is not input (S312: NO), the process returns to step S310, and the standby state of the first control device CD1 is maintained.

In step S316, the sensor-side control unit 550 performs calibration. When the calibration ends, the sensor-side control unit 550 proceeds to step S318, and when tension is detected by the force sensor 30, outputs the detected value of the tension as a detection value signal to the second control device CD2 ( S318). After that, the sensor-side control section 550 proceeds to step S320 and determines whether or not the first control device CD1 is powered off. When the sensor-side control section 550 determines that the first control device CD1 is powered off (S320: YES), the process ends. When the sensor-side control unit 550 determines that the power of the first control device CD1 is not turned off (S320: NO), the process returns to step S318 and outputs a detection value signal corresponding to the detection value of the force sensor 30. . In the first control device CD1, processing is performed as described above.

Next, the switching process executed by the stomp-side control section 650 of the second control device CD2 will be described with reference to FIG. The switching process is started when the power switch of the second control device CD2 is pushed down to turn on the power. Immediately after the second control device CD2 is powered on, the effect flag is in the effect off state, the lock flag is in the lock off state, and the wah/volume switching flag is in the volume control mode state. . In the switching process, the stomp-side control section 650 first determines whether or not the effect switch 632 has been pressed (step S410). When the stomp-side control section 650 determines that the effect switch 632 has been pressed (S410: YES), the process proceeds to step S420. When the stomp-side control section 650 determines that the effect switch 632 has not been pressed (S410: NO), the process proceeds to step S412.

In step S420, the stomp-side control section 650 determines whether or not the effect flag stored in the stomp-side storage section 653 is in the effect-on state. When it is determined in S420 that the effect flag is not in the effect-on state (S420: NO), the switching processing unit 659 of the stomp-side control unit 650 switches the effect flag to the effect-on state and stores it in the stomp-side storage unit 653 (switching process) (step S424), and the process proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling musical tones according to the detection value signal from the first control device CD1 is set to the effect-on state. On the other hand, if it is determined in S420 that the effect flag is in the effect ON state (S420: YES), the switching processing unit 659 switches the effect flag to the effect OFF state and stores it in the stomp side storage unit 653 (switching processing) ( Step S422), and the process proceeds to step S418.

At step S412, the stomp-side control section 650 determines whether or not the lock switch 634 has been pushed down. When the stomp-side control unit 650 determines that the lock switch 634 has been pressed (S412: YES), the process proceeds to step S430. When the stomp-side control unit 650 determines that the lock switch 634 has not been pressed (S412: NO), the process proceeds to step S414.

In step S430, the stomp-side control section 650 determines whether or not the effect flag stored in the stomp-side storage section 653 is in the effect-on state. If it is determined in S430 that the effect flag is not in the effect ON state (S430: NO), the stomp-side control section 650 proceeds to step S418. On the other hand, if it is determined in S430 that the effect flag is in the effect ON state (S430: YES), the stomp-side control section 650 proceeds to step S432, and the lock flag stored in the stomp-side storage section 653 is in the lock-on state. determine whether or not

When it is determined in step S432 that the lock flag is not in the lock-on state (S432: NO), the switching processing unit 659 of the stomp-side control unit 650 switches the lock flag to the lock-on state and stores it in the stomp-side storage unit 653 ( Switching process) (step S436), and the process proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling musical tones according to the detection value signal from the first control device CD1 is brought into the lock-on state. On the other hand, if it is determined in step S432 that the lock flag is in the lock-on state (S432: YES), the switching processing unit 659 switches the lock flag to the lock-off state and stores it in the stomp side storage unit 653 (switching processing). (Step S434), the process proceeds to step S418.

In step S414, the stomp-side control section 650 determines whether or not the wah switch 636 has been pushed down. When the stomp-side control unit 650 determines that the wah switch 636 has been pressed (S414: YES), the process proceeds to step S440. When the stomp-side control unit 650 determines that the wah switch 636 has not been pressed (S414: NO), the process proceeds to step S416.

In step S440, the stomp-side control section 650 determines whether or not the effect flag stored in the stomp-side storage section 653 is in the effect-on state. If it is determined in step S440 that the effect flag is not in the effect ON state (S440: NO), the stomp-side control section 650 proceeds to step S418. On the other hand, if it is determined in step S440 that the effect flag is in the effect ON state (S440: YES), the stomp-side control section 650 proceeds to step S442, and changes the wah/volume switching flag stored in the stomp-side storage section 653 to step S442. is in the wah effect imparting mode state.

When it is determined in step S442 that the wah/volume switching flag is not in the wah effect imparting mode state (S442: NO), the switching processing section 659 of the stomp side control section 650 switches the wah/volume switching flag to the wah effect imparting mode state. is stored in the stomp side storage unit 653 (switching process) (step S444), and the process proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling musical tones according to the detection value signal from the first control device CD1 is set to the wah effect imparting mode state. On the other hand, if it is determined in step S442 that the wah/volume switching flag is in the wah effect imparting mode state (S442: YES), the switching processing unit 659 maintains the wah effect imparting mode state without executing the switching process. The process proceeds to step S418.

In step S416, the stomp-side control section 650 determines whether or not the volume switch 638 has been pushed down. When the stomp-side control unit 650 determines that the volume switch 638 has been pressed (S416: YES), the process proceeds to step S450. When the stomp-side control unit 650 determines that the volume switch 638 has not been pressed (S416: NO), the process proceeds to step S418.

In step S450, the stomp-side control section 650 determines whether or not the effect flag stored in the stomp-side storage section 653 is in the effect-on state. If it is determined in step S450 that the effect flag is not in the effect ON state (S450: NO), the stomp-side control section 650 proceeds to step S418. On the other hand, if it is determined in step S450 that the effect flag is in the effect ON state (S450: YES), the stomp-side control section 650 proceeds to step S452, and changes the wah/volume switching flag stored in the stomp-side storage section 653 to step S452. is in volume control mode.

When it is determined in step S452 that the wah/volume switching flag is not in the volume control mode state (S452: NO), the switching processing unit 659 of the stomp side control unit 650 switches the wah/volume switching flag to the volume control mode state and performs stomp control. Store in the side storage unit 653 (switching process) (step S454), and proceed to step S418. As a result, in the second control device CD2, the control mode for controlling musical tones according to the detection value signal from the first control device CD1 is set to the volume control mode state. On the other hand, if it is determined in step S452 that the wah/volume switching flag is in the volume control mode state (S452: YES), the switching processing unit 659 maintains the volume control mode state without executing the switching process, and proceeds to step S418. transition to

Note that the process of outputting the information about the application of the currently set effect effect by the stomp-side communication unit 656 to the first control device CD1 includes step S420, step S430, step S440, step S430, and step S440 of determining the ON/OFF state of the effect flag. The determination result of step S450 can be used, and can be executed following the processing of each step. In addition, the timing at which the stomp-side communication unit 656 outputs the information regarding the application of the effect is not limited to immediately after execution of steps S420, S430, S440, and S450. As long as it is later, any timing is acceptable. In addition, the processing in which the stomp-side communication unit 656 outputs the information about the volume of the currently set tone to the first control device CD1 is executed after the volume control mode state is turned on, for example, after steps S452 and S454. can be executed.

At step S418, the stomp-side control unit 650 determines whether or not the second control device CD2 is powered off. When the stomp-side control unit 650 determines that the power switch of the second control device CD2 has been pushed down to turn off the power (S418: YES), the switching process ends. When the stomp-side control unit 650 determines that the power of the second control device CD2 is not turned off (S418: NO), the process returns to step S410 and executes the processing of step S410. In the musical tone control system 510, switching processing is executed as described above.

As described above, in the musical tone control system 510 according to the present embodiment, the detection value detected by the force sensor 30 of the first control device CD1 is input to the second control device CD2, and the musical tone is controlled according to the input detection value. is controlled. Further, when the performer presses the switches 630 of the second control device CD2 during performance, the tone control mode is switched. Therefore, the performer can reliably switch the control mode of musical tones by pressing down the switches 630 with his/her foot or the like while controlling the musical tones by changing the way the guitar strap 210 is pulled. Furthermore, since the performer can perform his/her performance away from the second control device CD2 except when switching the control mode of musical tones, the performer is not restricted by the performance location and can concentrate more on the performance. It is possible to enhance the production effect of the performance.

In the musical tone control system 510, the effect-on state, which is the first mode, is a control mode in which an effect effect is applied to the musical sound, and the effect-off state, which is a second mode, is a control mode in which the musical sound is not given an effect effect. It is a mode. As a result, it is possible to realize a specific configuration for switching the tone control mode between the effect-on state and the effect-off state.

In the musical tone control system 510, the lock-on state, which is the first mode, is a control mode in which the input detection value is held and the musical tone is controlled. This is a control mode in which musical tones are controlled in accordance with changes in input detection values without holding the detected values. As a result, it is possible to realize a specific configuration for switching the tone control mode between the lock-on state and the lock-off state.

Further, in the musical tone control system 510, the wah effect imparting mode state, which is the first mode, is a control mode in which the frequency band of the musical sound is changed according to the detected value, and the volume control mode state, which is the second mode, is This is a control mode for changing the volume of musical tones according to the detected value. As a result, it is possible to realize a specific configuration for switching the musical tone control mode between the wah effect imparting mode state and the volume control mode state.

Further, in the musical tone control system 510, the first control device CD1 is provided with a sensor-side LED 41L for informing imparting information regarding whether or not to impart an effect effect to the musical tone, and the stomp-side control section 650 controls the imparting information as the first control unit. A first output process of outputting to the device CD1 is executed, and the sensor-side control section 550 executes a first notification process of changing the notification mode according to the input additional information and notifying with the sensor-side LED 41L. As a result, the performer can recognize whether or not an effect effect is applied to the musical sound by looking at the sensor-side LED 41L.

Further, in the musical tone control system 510, the first control device CD1 has a sensor-side LED 41L that notifies volume information as volume information of the musical tone output from the electric guitar 200, and provides stomp-side control. The unit 650 executes a second output process of outputting the volume information to the first control device CD1, and the sensor-side control unit 550 changes the notification mode according to the input volume information and notifies it with the sensor-side LED 41L. A second notification process is executed. As a result, the performer can recognize volume information of musical tones by looking at the sensor-side LEDs 41L.

Further, in the musical tone control system 510, the stomp-side control section 650 executes third output processing for outputting to the first control device CD1 an activation signal for turning on the power of the first control device CD1, and the sensor-side control section 550 has a start-up processing unit 557 that executes start-up processing for turning on the power of the first control device CD1 on condition that a start-up signal is input when the power of the first control device CD1 is off. As a result, the performer can turn on the power of the first control device CD1 by operating the second control device CD2 disposed at the player's feet without directly operating the first control device CD1. can. In general, it is easier to operate the device at the foot than to operate the switch or the like attached to the guitar strap, so the operability is improved. Alternatively, the activation signal may be output from the second control device CD2 to the first control device CD1 in conjunction with turning on the power of the second control device CD2.

Further, in the musical tone control system 510, the second control device CD2 has a stomp-side LED 630L for notifying the remaining battery capacity information of the first control device CD1, and the sensor-side control section 550 reports the remaining battery capacity information. A fourth output process of outputting to the second control device CD2 is executed, and the stomp-side control unit 650 changes the notification mode according to the input remaining amount information and performs a third notification process of notifying the stomp-side control unit 650. to run. Thus, the player can recognize the remaining battery capacity of the first control device CD1 by looking at the stomp-side LED 630L.

It should be noted that each embodiment described above is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and its equivalents.

For example, in the above-described embodiments, the sound processor 100 and the musical tone control device 10 are communicated by wireless communication means. A configuration in which wireless communication means communicates between the control devices 10 may be employed. When using a PC, the receiving device may be USB connected. In this case, the effect application may be wirelessly connected to a speaker or the like, and the effect application may impart an effect to the musical sound emitted from the speaker according to the control signal from the musical sound control device 10 .

Further, in each of the above embodiments, when the detection value of the force sensor 30 exceeds the MAX value from the state of the neutral value and falls below the MAX value within Δt milliseconds, the second determination processing unit 58 outputs the “predetermined However, the condition required to satisfy the "predetermined condition" is not limited to this. Also, a configuration may be adopted in which the performer can arbitrarily set the conditions required to satisfy the "predetermined conditions".

Further, in the above-described first embodiment, the configuration in which the output mode of the control signal is switched between the output-on state and the output-off state is exemplified, and in the above-described second embodiment, the output mode of the MIDI message is the program change mode. Although the configuration for switching between the state and the pitch bend mode state has been exemplified, the output mode of the signal switched by the switching processing of the present invention is not limited to this.

Further, in the above-described third embodiment, the lock-on state and the lock-off state are switched each time the lock switch is pushed down, but the lock-on state is set only while the lock switch is pushed down. , the lock-off state may be set by releasing the pressing operation. In addition, in the above-described third embodiment, each switch portion is configured as a circular switch, but each switch portion may be a rectangular pedal-type switch that is easy to step on with a foot. Further, in the above-described third embodiment, the configuration in which one second control device is connected to one electric guitar was exemplified. A plurality of second control devices may be connected to each other.

1A, 1B performance system 10 musical tone control device 11 connection button portion 11a connection button 12 connection ring portion 12a connection opening 15 strap pin 20 case 21 front side case 21a inclined portion

21b indicator portion

21c front side

21d button opening 22 rear side case 22b battery cover 25 Battery 30 Force sensor 31 First shaft 31d First connection shaft 32 Second shaft 32d Second connection shaft 33 First metal plate 34 Second metal plate 38 Load cell 40 Substrate 41 LED
42 button unit 50 control unit 51 arithmetic processing unit 52 notification processing unit 53 storage unit 53A program 53B data 54 input unit 55 instruction reception unit 56 output processing unit 57 first judgment processing unit 58 second judgment processing unit 59 switching processing unit 80A 1 Receiving Device 80B Second Receiving Device 100 Sound Processor 110 Electric Signal Input Section 120 Effect Section 130 Electric Signal Input Section 140A First Control Signal Input Section 140B Second Control Signal Input Section 200 Electric Guitar 210 Guitar Strap 211 Slit 220 Shielded Cable 300 Guitar amplifier 410 musical tone control device 510 musical tone control system 550 sensor side control section 551 arithmetic processing section 552 sensor side information processing section 553 sensor side storage section 553A program 553B data 554 sensor side input section 555 sensor side instruction reception section 556 sensor side communication section 557 Activation processing unit 620 Housing 622 Connection jack unit 630 Switch unit 630L Stomp side LED
632 Effect switch 634 Lock switch 636 Wah switch 638 Volume switch 640 Volume knob 642 Sense volume 644 Tone volume 646 Frequency volume 648 Minimum volume adjustment volume 650 Stomp side control unit 651 Arithmetic processing unit 652 Stomp side notification processing unit 653 Stomp side storage unit 653A Program 653B Data 654 Stomp-side input section 655 Stomp-side instruction reception section 656 Stomp-side communication section 657 Effect section 658 Output section 659 Switching processing section CD1 First control device CD2 Second control device W Waveform

Claims

a detection unit that detects tension generated between the musical instrument and the musical instrument holder;
a control unit;
The control unit
According to whether the change in the detection value detected by the detection unit is a predetermined change, a switching process is performed to switch the output mode of the signal between the first mode and the second mode.
A musical tone control device characterized by:
The switching process executed by the control unit changes the output mode to the second mode on the condition that the output mode is the first mode, and changes the output mode to the second mode. Changing the output mode to the first mode on the condition that there is
2. The musical tone control device according to claim 1, wherein:
When determining that the change in the detected value is not the predetermined change, the control unit outputs a signal in the first mode on condition that the output mode is the first mode, and outputs the signal in the output mode. Outputs a signal in the second mode on the condition that is in the second mode,
2. The musical tone control device according to claim 1, wherein:
The first aspect is an output aspect of outputting the signal,
The second aspect is an output aspect in which the signal is not output.
4. The musical tone control device according to any one of claims 1 to 3, characterized in that:
The first aspect is an output aspect in which the detection value detected by the detection unit is converted into any value of discrete values and a signal corresponding to the parameter corresponding to the converted value is output,
The second aspect is an output aspect in which the detection value detected by the detection unit is converted into a continuous value and a signal corresponding to the parameter corresponding to the converted value is output.
4. The musical tone control device according to any one of claims 1 to 3, characterized in that:
If the detected value changes to a value smaller than the threshold within a predetermined time after changing to a value larger than a predetermined threshold, the control unit determines that the predetermined change has occurred.
2. The musical tone control device according to claim 1, wherein:
A notification unit that notifies that the tension is occurring,
The control unit has a notification processing unit that changes the notification mode according to the detected value and executes notification processing for notification by the notification unit.
2. The musical tone control device according to claim 1, wherein:
capable of wireless communication with a receiving device connected to an effect device that imparts an effect to the musical sound of the musical instrument;
2. The musical tone control device according to claim 1, wherein:
a first control device having a first detection unit that detects the tension generated between the musical instrument and the musical instrument holder and a first control unit, and outputting a detection value detected by the first detection unit;
a second control device having a depressing portion that can be pressed, a second detecting portion that detects the depressing operation of the depressing portion, and a second control portion, and that controls a signal according to the input detection value; , and
The second control unit is
When the second detection unit detects a pressing operation of the pressing unit, a switching process is performed to switch the control mode of the signal between a first mode and a second mode.
A musical tone control system characterized by:
The first aspect is a control aspect that imparts an effect effect to the signal,
The second aspect is a control aspect that does not impart an effect to the signal.
10. The musical tone control system according to claim 9, wherein:
The first aspect is a control aspect of holding the input detection value and controlling the signal,
The second aspect is a control aspect in which the signal is controlled according to a change in the input detection value without holding the input detection value.
10. The musical tone control system according to claim 9, wherein:
The first aspect is a control aspect of changing the frequency band of the signal according to the detected value,
The second aspect is a control aspect of changing the envelope of the signal according to the detected value.
10. The musical tone control system according to claim 9, wherein:
The second control device is
a timbre control unit that controls the timbre of the signal according to the detected value;
an audio signal output unit that outputs a signal controlled by the tone color control unit;
10. The musical tone control system according to claim 9, wherein:
Wireless communication is possible between the first control device and the second control device,
14. The musical tone control system according to any one of claims 9 to 13, characterized in that:
The first control device includes a first notification unit that notifies addition information regarding whether or not to add an effect effect to the signal,
The second control unit executes a first output process of outputting the attached information to the first control device,
The first control unit executes a first notification process in which the notification mode is changed according to the input additional information and the first notification unit notifies,
15. The musical tone control system according to claim 14, wherein:
The first control device includes a first notification unit that notifies volume information as volume information of a musical tone output from the musical instrument as information about the envelope of the signal,
The second control unit executes a second output process of outputting the volume information to the first control device,
The first control unit changes the notification mode according to the input volume information and executes a second notification process in which the first notification unit notifies,
15. The musical tone control system according to claim 14, wherein:
The second control unit executes a third output process of outputting a start signal for turning on the power of the first control device to the first control device,
The first control unit includes a start-up processing unit that executes a start-up process of turning on the power of the first control device on condition that the start-up signal is input when the power of the first control device is off. have
15. The musical tone control system according to claim 14, wherein:
The second control device includes a second notification unit that reports remaining amount information regarding the remaining battery capacity of the first control device,
The first control unit executes a fourth output process of outputting the remaining amount information to the second control device,
The second control unit changes the notification mode according to the input remaining amount information and executes a third notification process in which the second notification unit notifies,
15. The musical tone control system according to claim 14, wherein:
In the computer of the musical tone control device equipped with a detection unit that detects the tension generated between the musical instrument and the musical instrument holder,
According to whether the change in the detection value detected by the detection unit is a predetermined change, executing a switching process for switching the output mode of the signal between the first mode and the second mode;
A musical tone control program characterized by: