Musical tone control device and music tone control program

Abstract

To provide a musical sound control device, a musical sound control system and a musical sound control program which are provided with a configuration capable of controlling musical sounds when a musical instrument is moved and still which can control music, as well as, switch music control modes without performing switching operation.SOLUTION: The musical sound control device comprises: a force sensor for detecting a tensile force generated between an electric guitar and a guitar strap; and a control unit. The control unit executes a switching process of switching a signal output mode between a first and a second mode depending on whether or not a change of a detection value detected by the force sensor conforms to a prescribed change. With no need of any switching device to be separately installed, the musical sound control device can control musical sounds, as well as, switch musical sound control modes when, for example, a player intentionally pulls the guitar strap.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a musical tone control device. reference and a music control program. [Background technology]

[0002] A technology has been proposed in the past in which a sensor or the like is installed between an instrument and a strap for a player to hold the instrument, the force generated by the player pulling the strap is detected by the sensor, and a signal that controls musical tones is output according to the detected value. For example, Patent Document 1 discloses a portable electronic instrument in which a pressure sensor or a stretch detection sensor is installed in the strap. In this portable electronic instrument, the instrument is moved to apply pressure to the strap or to cause stretching, and a signal that controls musical tones is output according to the detected value of the sensor, thereby controlling pitch bend, modulation amount, volume, and the like. Therefore, musical tones can be controlled while holding the instrument with both hands without switching operations. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 59-060692 Summary of the Invention [Problem to be solved by the invention]

[0004] Regarding the control of musical tones, for example, in the case of an effecter connected between a guitar and an amplifier, in addition to controlling various parameters of the effecter, it may be desired to switch the effecter itself on and off or to switch to a different type of effecter. However, in the portable electronic musical instrument of the above-mentioned Patent Document 1, although it is possible to control musical tones while holding the instrument with both hands, it is not possible to switch the control mode of musical tones, such as switching the effecter itself on and off. For this reason, it is necessary to provide a separate switching device for switching the control mode of musical tones and perform the switching operation.

[0005] The present invention relates to a musical tone control device that is capable of controlling musical tones by moving a musical instrument, and that is capable of controlling musical tones and switching the control mode of the musical tones without performing a switching operation. reference The present invention aims to provide a musical sound control program. [Means for solving the problem]

[0006] 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, the control unit being configured to: When the detection value detected by the detection unit changes to a value larger than a predetermined threshold value and then changes to a value smaller than the threshold value within a predetermined time, the detection value is determined to be a predetermined change; The detection unit detects The above Change in detection value The above A switching process is executed to switch the signal output mode between a first mode and a second mode depending on whether or not there is a predetermined change.

[0008] A musical tone control program according to one aspect of the present invention includes a computer of a musical tone control device having a detection unit that detects tension generated between a musical instrument and a musical instrument holder, the computer comprising: When the detection value detected by the detection unit changes to a value larger than a predetermined threshold value and then changes to a value smaller than the threshold value within a predetermined time, the detection value is determined to be a predetermined change; The detection unit detects The above Change in detection value The above A switching process is executed to switch the signal output mode between a first mode and a second mode depending on whether or not there is a predetermined change. Effect of the Invention

[0009] According to the present invention, there is provided a musical tone control device that is capable of controlling musical tones by moving a musical instrument, and that is capable of controlling musical tones and switching the control mode of the musical tones without performing a switching operation. reference and a music control program can be provided. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing a performance system in which a musical tone control device according to a first embodiment is used. [Diagram 2] 1 is an enlarged perspective view of a musical tone control device according to a first embodiment; [Diagram 3] 1 is an exploded perspective view showing the internal structure of a musical tone control device according to a first embodiment; [Figure 4] 1 is a block diagram showing the electrical configuration of a musical tone control device according to a first embodiment. [Diagram 5] 4 is an example of a waveform that satisfies a predetermined change in the first embodiment. [Figure 6] 5 is a flowchart showing a sensor process executed by a control unit in the first embodiment. [Figure 7] FIG. 11 is a schematic diagram showing a performance system in which a musical tone control device according to a second embodiment is used. [Figure 8] 10 is a flowchart showing a sensor process executed by a control unit in the second embodiment. [Figure 9] FIG. 11 is a schematic diagram showing a performance system in which a musical tone control system according to a third embodiment is used. [Figure 10] FIG. 13 is a block diagram showing the electrical configuration of a first control device in a third embodiment. [Figure 11] FIG. 13 is a block diagram showing the electrical configuration of a second control device in a third embodiment. [Figure 12] 13 is a flowchart showing a process executed by a sensor side control unit in the third embodiment. [Figure 13] 13 is a flowchart showing a process executed by a stomp-side control unit in the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] (First embodiment) A first embodiment of the present invention will be described below with reference to Figs. 1 to 6. In a performance system 1A shown in Fig. 1, a musical tone control device 10 according to the first embodiment is provided in a form that connects an electric guitar (musical instrument) 200 and a guitar strap (musical instrument holder) 210 that is worn on the shoulder of a player (user) to hold the electric guitar 200. The electric guitar 200 has a strap pin 15 (see Fig. 2) provided at one end (head side) of the body connected to the musical tone control device 10, and a strap pin (not shown) provided at the other end of the body connected to the guitar strap 210. When playing the electric guitar 200, the electric guitar 200 is connected to a known sound processor (effect device) 100 via a shielded cable 220 or the like.

[0012] The sound processor 100 is a multi-effector, and includes an electric signal input section 110, an effect section 120, an electric signal output section 130, a first control signal input section 140A, and a second control signal input section 140B. The electric signal input section 110 receives an electric signal output from an electric guitar 200. The electric signal output section 130 is connected to a well-known guitar amplifier 300, and outputs an electric signal 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 according to a control signal from the musical tone control device 10 described later.

[0013] The first control signal input unit 140A is an input unit to which an expression pedal is connected, for example, to receive input from the expression pedal, and is connected to the first receiving device 80A. The first receiving device 80A outputs a detection value to the sound processor 100 as a voltage value, similar to a standard jack of a known expression pedal, and is connected to the first control signal input unit 140A. The second control signal input unit 140B is an input unit to which a MIDI message such as a program change message or a pitch bend message is input, for example, to which a MIDI device is connected. A program change number in the program change mode is preset in the sound processor 100.

[0014] Communication between the musical sound control device 10 and the first receiving device (receiving device) 80A is performed 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, an FM transmitter, or infrared communication. The first receiving device 80A receives a control signal output from the musical sound control device 10 by the wireless communication means, and inputs it to the first control signal input unit 140A of the sound processor 100 as an operation value of the expression pedal.

[0015] Next, the configuration of the musical sound control device 10 will be described. As shown in Fig. 2, the musical sound control device 10 has a vertically long rectangular box shape. In the following description, the side of the guitar strap 210 (shoulder side, upper left side in Fig. 2) when the musical sound control device 10 is connected between the electric guitar 200 and the guitar strap 210 and the player wears the guitar strap 210 on his shoulder is referred to as the upper side, the opposite side (guitar side, lower right side in Fig. 2) is referred to as the lower side, the head side of the electric guitar 200 (player's left hand side, upper right side in Fig. 2) is referred to as the left side, the opposite side (player's right hand side, lower left side in Fig. 2) is referred to as the right side, the front side of the electric guitar 200 (near side in Fig. 2) is referred to as the front side, and the opposite side is referred to as the rear side.

[0016] The musical sound control device 10 includes a box-shaped case 20 that is the device body, a connection button section 11 connected to the upper side of the case 20, and a connection ring section 12 connected to the lower side of the case 20. The connection button section 11 is a short, flat member that extends in an approximately 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 section 11 is connected to be rotatable around the shaft axis of the first shaft 31 and is also connected to be rotatable around the axis of the first connection shaft 31d. A connection button 11a is provided on the front side of the upper end of the connection button section 11, and the musical sound control device 10 and the guitar strap 210 are connected by buttoning the connection button 11a into a circular opening (not shown) on a slit 211 provided at one end of the guitar strap 210.

[0017] The connection ring portion 12 is a flat member that extends in a short, approximately flat shape, and is connected to one end of the second shaft 32 exposed from the underside of the case 20 via a second connection shaft 32d (see FIG. 3). The connection ring portion 12 is rotatably connected around the shaft axis of the second shaft 32, and is also rotatably connected around the axis of the second connection shaft 32d. A connection opening 12a is provided in the approximate center of the connection ring portion 12, and a strap pin 15 provided on one end of the body of the electric guitar 200 is fitted into the connection opening, thereby connecting the musical tone control device 10 and the electric guitar 200.

[0018] As shown in FIG. 3, the case 20, which is the device main body, has a front case 21 constituting the front part of the case 20 and a rear case 22 constituting the rear part of the case 20, and various members are housed between the front case 21 and the rear case 22. The front case 21 has an annular inclined part 21a with the outer periphery of the edge of the front surface 21c of the front case 21 being C-chamfered. Approximately the upper half of the inclined part 21a (approximately a U-shaped part) is an indicator part 21b made of a material having translucency. In addition, the upper part of the front surface 21c of the front case 21 is provided with four button openings 21d for exposing four button parts 42, which will be described later, to the outside.

[0019] A board 40 is housed inside the front case 21. On the board 40, nine LEDs (notification units, first notification units) 41 are mounted at equal intervals at positions corresponding to the indicator units of the front case 21, four button units 42 are respectively provided at positions corresponding to the button openings 21d of the front case 21, and a control unit 50. The light emission mode of each LED 41 is controlled by the control unit 50. The light emitted from each LED 41 is transmitted through the indicator unit 21b and is visually recognized by the player, etc.

[0020] Each button section 42 is configured to receive a pressing operation by a player. Each button section 42 is assigned various functions such as a function to turn on or off the power of the musical sound control device 10, a function to access a Bluetooth (registered trademark) pairing function, a function to invert the phase of a musical sound from positive to negative, and a function to set a MAX value, which will be described later, by performing a pressing operation.

[0021] A force sensor (detection unit, first detection unit) 30 is housed inside the rear case 22. A battery housing unit (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 housed in the battery housing unit, and the battery housing unit is closed by attaching a battery cover 22b.

[0022] 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 a rectangular parallelepiped-shaped metallic strain generating body, and is arranged at the lower part inside the rear case, extending in the left-right direction. A sensor device such as a strain gauge (not shown) is provided at the left-right center of the load cell 38. The first metal plate 33 is made of a metal plate member having a substantially S-shape in side view, and its right lower surface is abutted against and fixed to the right end upper surface of the load cell 38. The second metal plate 34 is also made of a metal plate member having a substantially S-shape in side view, and its left upper surface is abutted against and fixed to the left end lower surface of the load cell 38. The left part of the first metal plate 33 and the right part of the second metal plate 34 face each other across the left-right center of the load cell 38.

[0023] The first shaft 31 is a substantially cylindrical shaft-like member, and is disposed above the first sheet metal 33 in a manner extending in the vertical direction. The upper end of the first shaft 31 is exposed above the rear case 22, and is connected to the first connecting shaft 31d so as to be rotatable around the axis of the first connecting shaft 31d. The lower end of the first shaft 31 is connected to the left part of the first sheet metal 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 disposed below the second sheet metal 34 in a manner extending 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 axis of the second connecting shaft 32d. The upper end of the second shaft 32 is connected to the right part of the second sheet metal 34 so as to be rotatable around the axis of the second shaft 32.

[0024] 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. For this reason, when the performer applies tension between the first shaft 31 and the second shaft 32 by, for example, stretching the guitar strap 210, the sensor device provided in the load cell 38 measures the amount of extension of the load cell 38, which is processed by a control portion (not shown) included in the load cell 38 and converted into a tension value (detection value). In this way, the force sensor 30 can detect the tension generated between the electric guitar 200 and the guitar strap 210.

[0025] Next, the electrical configuration of the musical tone control device 10 will be described with reference to Fig. 4. The musical tone control device 10 is entirely controlled by a control unit 50 mounted on a substrate 40. The control unit 50 has an arithmetic processing unit 51 configured from a computer such as a CPU. 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 judgment processing unit 57, a second judgment processing unit 58, a switching processing unit 59, etc. are connected to the arithmetic processing unit 51.

[0026] The notification processor 52 is configured to control the light emission state of each LED 41 to notify the player of various information through the indicator unit 21b. Specifically, the notification processor 52 executes notification processing to notify the player of information by changing the light emission color, light emission intensity, and light emission interval of the LED 41, and by changing the light emission positions of the nine LEDs 41. For example, it can turn on a blue light when a weak tension is applied to the force sensor 30, turn on a green light when a medium tension is applied, and turn on a red light when a strong tension is applied. This makes it possible to notify the player of the degree of tension applied to the force sensor 30. The notification processor 52 may have a built-in speaker to notify the player of information.

[0027] The storage unit 53 is composed of an EEPROM (Electrically Erasable Programmable ROM) that stores programs for controlling the CPU, and a flash memory that temporarily stores various data 53B. The storage unit 53 stores a program (musical tone control program) 53A for executing a sensor process described later. The storage unit 53 also stores data 53B such as a neutral value, a MAX value (a predetermined threshold value), and a Δt value (a predetermined time), described later.

[0028] The input unit 54 is configured to receive the detection signal (detection value) output from the above-mentioned force sensor 30. The instruction receiving unit 55 is configured to receive various instructions from the player by pressing the button unit 42.

[0029] The output processing unit 56 outputs a signal (hereinafter referred to as a "control signal") for controlling a musical tone according to the detection value of the force sensor 30 to the first receiving device 80A. The control signal is output according to the currently set output mode. The output mode here refers to, for example, an output mode (first mode) for outputting a control signal (hereinafter referred to as an "output on state"), an output mode (second mode) for not outputting a control signal regardless of the presence or absence of detection by the force sensor 30 (hereinafter referred to as an "output off state"), an output mode (first mode) for outputting a MIDI message related to a program change (hereinafter referred to as a "program change mode"), an output mode (second mode) for outputting a MIDI message related to a pitch bend (hereinafter referred to as a "pitch bend mode"), and the like. In the musical tone control device 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.

[0030] The first determination processor 57 determines whether or not there has been a change in the detection value of the force sensor 30. If there has been a change in the detection value of the force sensor 30, the second determination processor 58 determines whether or not the change is a predetermined change that conforms to, for example, the waveform W shown in Fig. 5. If the change in the detection value of the force sensor 30 is a predetermined change, the switching processor 59 switches the output mode of the control signal in the output processor 56.

[0031] Here, the calibration of the musical tone control device 10 will be described. The calibration here refers to an operation for correcting the variation in the detection value of the sensor, which varies due to various factors such as the variation between individual force sensors 30, the weight of the electric guitar 200 connected to the musical tone control device 10, and the way the player applies force. This calibration is performed when the power supply of the musical tone control device 10 is turned on for the first time, when the player operates the button section 42 of the musical tone control device 10 to instruct the calibration, and the like. The operation of the button section 42 for performing the calibration is not particularly limited, and may be performed, for example, by pressing a specific button section 42 for a long time (for example, for 3 seconds or more).

[0032] During the calibration, the control unit 50 instructs the player by changing the light emission state of the LED 41 or by emitting sound from the built-in speaker. When the calibration is executed, the control unit 50 instructs the player not to apply force to the electric guitar 200. By maintaining the state of not applying force for several seconds, the control unit 50 stores the average value of the detection values ​​by the force sensor 30 during that time as a neutral value in the storage unit 53. The neutral value is a detection value in which only the load due to the weight of the electric guitar 200 is detected when the player is carrying the electric guitar 200 on his shoulder and is not applying force to the electric guitar 200.

[0033] Next, the control unit 50 instructs the player to apply to the electric guitar 200 the maximum force that the player wishes to use as performance data while playing the electric guitar 200. The maximum force here does not necessarily mean the force applied to the limit, but the force that the player can apply comfortably while playing. When this maximum force is maintained for several seconds, or when the button unit 42 to which the function of setting the MAX value is assigned is pressed while the maximum force is applied, the control unit 50 stores the average value of the detection values ​​by the force sensor 30 during that time as the MAX value in the storage unit 53. The MAX value is the detection value when the maximum force that the player wishes to output as the detection value is applied. The above operations complete the calibration.

[0034] Next, an example of a waveform that satisfies a predetermined change, which will be described later, will be described with reference to FIG. 5. The waveform that satisfies the predetermined change here is a waveform that satisfies all of the conditions required when the second judgment processing unit 58 of the control unit 50 judges that the change is a "predetermined change". Specifically, the neutral value, MAX value, Δt value, etc. shown in the waveform W in FIG. 5 are referenced as materials for the second judgment processing unit 58 to judge whether the change is a "predetermined change". The vertical axis in FIG. 5 indicates the detection value (volts) detected by the force sensor 30, and the horizontal axis indicates time (milliseconds). The waveform W indicates the neutral value and MAX value set by the above-mentioned calibration. The waveform W represents an example of a waveform in which the detection value of the force sensor 30 exceeds the MAX value from a neutral value state and falls below the MAX value within Δt milliseconds. Δt is, for example, 500 (0.5 seconds). The value of Δt may be preset in the musical tone control device 10, or may be set appropriately by the performer.

[0035] Specifically, the waveform W is an example of a waveform generated by a series of actions in which the performer starts from a state in which no force is being applied to the electric guitar 200 and then, for example, lifts the electric guitar 200 once and then releases it, causing the electric guitar 200 to drop to a position restricted by the guitar strap 210, or by pushing the electric guitar 200 downward or upward, momentarily applying a force exceeding the MAX value to the force sensor 30, and then immediately returning the electric guitar 200 to a state in which no force is being applied. When the performer intentionally performs the series of actions represented by such waveform W, the control unit 50 of the musical tone control device 10 determines that the change in the detection value of the force sensor 30 is a predetermined change, and executes a switching process described later.

[0036] In the musical sound control device 10 of this embodiment, when a performer moves the electric guitar 200 while playing, tension acts between the connection button section 11 and the connection ring section 12, and the force sensor 30 detects the tension and executes a process (hereinafter referred to as "sensor process") to control the output mode of a control signal. The sensor process executed by the control section 50 of the musical sound control device 10 according to the first embodiment will be described below with reference to FIG. 6. The sensor process is started when the power supply of the musical sound control device 10 is turned on. In the sensor process, the control section 50 first executes the above-mentioned calibration (step S10). When the calibration is completed, the control section 50 proceeds to step S12.

[0037] In step S12, the first judgment processing unit 57 of the control unit 50 judges whether or not there has been a change in the detection value of the force sensor 30 based on the detection value of the force sensor 30 input from the force sensor 30 to the input unit 54 (first judgment processing). Specifically, the first judgment processing unit 57 compares the detection value of the force sensor 30 input previously with the detection value of the force sensor 30 input this time. If there has been a change from the detection value input previously, the first judgment processing unit 57 judges that there has been a change in the detection value (S12: YES) and proceeds to step S14. If the change in the detection value exceeds the MAX value read from the storage unit 53, the control unit 50 counts the elapsed time since the detection value exceeded the MAX value. Then, if the detection value changes below the MAX value after the detection value exceeds the MAX value, the control unit 50 ends the count of the elapsed time and stores the counted elapsed time in the storage unit 53.

[0038] On the other hand, if there is no change from the previously input detection value, the first determination processing unit 57 determines that there is no change in the detection value (S12: NO) and repeatedly executes the process of step S12. The cycle at which the first determination processing unit 57 repeatedly executes the process of step S12 is not particularly limited, and is executed at intervals of several milliseconds, for example.

[0039] In step S14, the second judgment processing unit 58 of the control unit 50 judges whether the change in the detection value of the force sensor 30 is a predetermined change that conforms to, for example, the waveform W shown in Fig. 5 (second judgment processing). Specifically, if all of the following conditions are met: (1) the previously input detection value is greater than the MAX value read from the storage unit 53, (2) the currently input detection value is less than the MAX value read from the storage unit 53, and (3) the elapsed time read from the storage unit 53 is less than or equal to Δt, the second judgment processing unit 58 judges that the change is a predetermined change (S14: YES) and proceeds to step S16. If any one of the above conditions is not met, the second judgment processing unit 58 judges that the change is not a predetermined change (S14: NO) and proceeds to step S24.

[0040] In step S16, the switching processing unit 59 of the control unit 50 judges whether the output state of the control signal is the output on state. If the output state of the control signal is the output on state (S16: YES), the switching processing unit 59 switches and sets the output state of the control signal to the output off state (switching process) (step S18), and proceeds to S20. If the output state of the control signal is not the output on state, that is, if the output state of the control signal is the output off state (S16: NO), the switching processing unit 59 switches and sets the output state of the control signal to the output on state (switching process) (step S22), and proceeds to step S20. Note that when the output state of the control signal is switched, the notification processing unit 52 of the control unit 50 notifies the player of the newly set output state by changing the light emission state of the LED 41.

[0041] In step S24, the control unit 50 judges whether the output state of the control signal is the output on state. If the output state of the control signal is the output on state (S24: YES), the output processing unit 56 of the control unit 50 outputs a control signal according to the detection value of the force sensor 30 input this time detected in step S12 (output processing) (step S26), and proceeds to step S20. If the output state of the control signal is not the output on state, that is, if the output state of the control signal is the output off state (S24: NO), the control unit 50 proceeds to step S20.

[0042] In step S20, the control unit 50 judges whether the power of the musical sound control device 10 has been turned off. If the control unit 50 judges that the power of the musical sound control device 10 has been turned off (S20: YES), it ends the sensor processing. If the control unit 50 judges that the power of the musical sound control device 10 has not been turned off (S20: NO), it returns to step S12 and executes the processing of step S12. In the musical sound control device 10, the sensor processing is executed as described above.

[0043] As described above, in the musical sound control device 10 according to the present embodiment, the performer generates tension between the electric guitar 200 and the guitar strap 210 by pulling the guitar strap 210 during playing, etc., and a control signal for controlling the musical sound is output to the sound processor 100 according to the detection value detected by the force sensor 30. Furthermore, when the change in the detection value detected by the force sensor 30 is a predetermined change that satisfies the above-mentioned condition, the output state of the control signal is switched between the output on state and the output off state. Therefore, the performer can switch the output state of the control signal between the output on state and the output off state at any timing by intentionally changing the way the guitar strap 210 is pulled, etc. In this way, in the musical sound control device 10, the performer can control the musical sound and switch the control state of the musical sound by intentionally pulling the guitar strap 210, etc., without providing a separate switching device.

[0044] In addition, in the musical tone control device 10, the control unit 50 executes a switching process to change the output state to the output off state when the output state is the output on state, and to the output on state when the output state is the output off state. This allows the performer to intentionally pull the guitar strap 210, for example, to cause a predetermined change in the detection value of the force sensor 30, thereby alternately switching between the output on state and the output off state.

[0045] In addition, in the musical tone control device 10, when the control unit 50 determines that the change in the detection value of the force sensor 30 is not a predetermined change, the output processing unit 56 outputs a control signal in the output on state on condition that the output state is the output on state, and outputs a control signal in the output off state on condition that the output state is the output off state. This makes it possible to prevent a control signal from being output even if the detection value of the force sensor 30 is changed by, for example, accidentally or intentionally pulling the guitar strap 210 when in the output off state.

[0046] In the musical tone control device 10, the output on state, which is the first state, is an output state in which a control signal is output, and the output off state, which is the second state, is an output state in which no control signal is output. This makes it possible to realize a specific configuration for switching the output state between the output on state and the output off state.

[0047] In addition, in the tone control device 10, the control unit 50 determines that a predetermined change has occurred when the detection value of the force sensor 30 changes to a value greater than the MAX value and then changes to a value less than the MAX value within Δt seconds. This makes it possible to provide specific conditions required to satisfy the predetermined change.

[0048] The tone control device 10 also includes an LED 41 that notifies the player that tension is occurring, and the control unit has a notification processing unit 52 that executes notification processing to change the notification mode according to the detection value of the force sensor 30 and notify the player by the LED 41. Therefore, the player can visually recognize the change in the tone control signal according to the detection value of the force sensor 30 and the change in the output mode of the tone control signal.

[0049] In addition, the musical sound control device 10 can wirelessly communicate with a first receiving device 80A connected to a sound processor 100 that applies effects to musical sounds of the electric guitar 200. This makes it possible to provide a specific configuration for realizing a performance system 1A using the musical sound control device 10.

[0050] Furthermore, the program 53A stored in the memory unit 53 of the control unit 50 causes the calculation processing unit 51 of the musical sound control device 10, which includes the force sensor 30 that detects the tension generated between the electric guitar 200 and the guitar strap 210, to execute a switching process for switching the output mode of the control signal between the first mode and the second mode depending on whether or not a change in the detection value detected by the force sensor 30 is a predetermined change. This provides specific processing that should be executed by the program to realize a configuration in which the performer can control musical sounds and switch the control mode of the musical sounds by intentionally pulling the guitar strap 210, etc.

[0051] Second embodiment Next, a second embodiment of the present invention will be described with reference to Figs. 7 and 8. In the description of the second embodiment, the description of the same configuration as the first embodiment will be omitted or simplified. The second embodiment differs from the first embodiment in the output mode of the control signal switched in the sensor processing. As shown in Fig. 7, in the 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. In addition, 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.

[0052] The musical sound control device 410 and the second receiving device 80B communicate with each other by wireless communication means such as BLE-MIDI (MIDI over Bluetooth LE) protocol. The second receiving device 80B receives the MIDI message output from the musical sound control device 10 by the wireless communication means and inputs it to the second control signal input unit 140B. The MIDI message output from the musical sound control device 10 includes, for example, a program change message for increasing or decreasing the program change number in the program change mode and a pitch bend message in the pitch bend mode for outputting a continuous value. In the musical sound control device 410 according to the second embodiment, the output state of the MIDI message is set to either the program change mode state or the pitch bend mode state.

[0053] Here, MIDI program change messages are basically used to specify tone 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 the parameter set to 1, the device sets its own tone number to 1 (acoustic grand piano tone). If the parameter is 41, the device sets its own tone number to 41 (violin tone). In this way, program change mode is a mode for setting tone numbers.

[0054] In a multi-effector, program change messages are often used to switch the patch number of the effector. A patch is a combination of multiple effectors. For example, patch number 1 may be set to a combination of three effectors (distortion type): distortion, wah, and noise gate. Patch number 2 may be set to a combination of three effectors (clean type): compressor, chorus, and equalizer.

[0055] When the multi-effector receives a program change with the parameter set to 1, it sets the patch to a distortion patch with patch number 1. If the multi-effector then receives a program change with the parameter set to 2, it changes the patch from the distortion patch to a clean patch with patch number 2. In this way, a guitarist can use program change messages to switch the tone of his guitar from a distorted tone to a clean tone while playing.

[0056] In the program change mode in this embodiment, the patch number of the multi-effector is increased or decreased. That is, the patch number stored as data 53B of the musical tone control device 410 is incremented by 1, and the updated patch number is sent to the sound processor 100, which is the multi-effector, as a program change parameter, or the patch number is decremented by 1, and the updated patch number is sent to the sound processor 100 as a program change parameter.

[0057] On the other hand, a pitch bend message in MIDI is a message that continuously changes the pitch of a musical sound. A pitch bend message is a MIDI message that represents a change in pitch achieved by operating a control called a pitch bend wheel (also called a bender or pitch bender) that is located on a keyboard such as a synthesizer. The pitch bend message controls pitch changes from -8192 to 0 to +8191 steps using a 14-bit parameter. The range of pitch change is set by a MIDI message other than the pitch bend message called a bend range message.

[0058] Pitch bend was originally invented to achieve the effect of guitar choking (known as the bend technique in English) on the keyboard. Therefore, with a guitar, you can achieve a certain degree of pitch bend effect by playing it in a certain way. Many multi-effectors are equipped with an effector called a pitch shifter. While guitar choking can raise the pitch by only two notes at most, a pitch shifter can be used to raise or lower the pitch even more.

[0059] In the pitch bend mode in this embodiment, the pitch shift 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 a numerical value between -8192 and +8191, and this is transmitted as a parameter of the pitch bend message to the sound processor 100, which is the multi-effector. 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 parameter of the received pitch bend message.

[0060] The sensor process 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. 8. In the sensor process, the control unit 50 first executes calibration (step S210). The calibration executed by the control unit in step S210 is the same as the calibration executed by the control unit 50 in step S10 in the first embodiment. Next, the control unit 50 outputs a program change message with a 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 musical tone control device 410. Hereinafter, the program change number, which is a parameter of the program change message, is referred to as the "patch number". When the process of step S211 ends, the control unit 50 proceeds to step S212.

[0061] The processes of steps S212 and S214 in the sensor process are similar to the processes of steps S12 and S14 in the first embodiment, and therefore will not be described. If the second determination processing unit 58 of the control unit 50 determines in step S214 that there is a predetermined change (S214: YES), the process proceeds to step S216, and if it determines that there is no predetermined change (S214: NO), the process proceeds to step S224.

[0062] In step S216, the switching processing unit 59 of the control unit 50 judges whether the output mode of the MIDI message is the program change mode. If the output mode of the MIDI message is the program change mode (S216: YES), the switching processing unit 59 switches and sets the output mode of the MIDI message to the pitch bend mode (switching process) (step S218), and proceeds to S220. 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 (S216: NO), the switching processing unit 59 switches and sets the output mode of the MIDI message to the program change mode (switching process) (step S222), and proceeds to step S20. If the output mode of the MIDI message is switched, the control unit 50 notifies the player of the newly set output mode, as in the first embodiment.

[0063] In step S224, the control unit 50 judges whether the output mode of the MIDI message is the program change mode or not. 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 a program change message according to the detection value of the force sensor 30 input this time detected in step S212 (output process) (step S226), and proceeds to step S220.

[0064] Here, the parameter of the program change message output by the output processing unit 56, i.e., the patch number, is the patch number output in step S211 and then updated in this process, which is incremented or decremented. Specifically, the control unit 50 adds or subtracts 1 from the current patch number, and stores the resulting patch number in the storage unit 53 as a new patch number, and outputs it.

[0065] The control unit 50 determines whether to increment or decrement the patch number based on the detection value of the force sensor 30 by the player's operation. In this embodiment, when the guitar 200 is pressed down, etc., and the detection value remains greater than the neutral value for a certain period of time (e.g., 1 second), the control unit 50 executes an increment operation. Similarly, when the guitar 200 is lifted, etc., and the detection value remains smaller than the neutral value for a certain period of time (e.g., 1 second), the control unit 50 executes a decrement operation. That is, the control unit 50 converts the detection value of the force sensor 30 into one of two values ​​(discrete values), a value corresponding to an increment and a value corresponding to a decrement, and outputs a program change message with the patch number increased or decreased according to one of the converted two values ​​as a parameter.

[0066] If the output mode of the MIDI message is not the program change mode, i.e., if the output mode of the MIDI message is the pitch bend mode (S224: NO), output processing unit 56 outputs a pitch bend message in accordance with the detection value of force sensor 30 input this time detected in step S212 (output processing) (step S228), and proceeds to step S220.

[0067] Specifically, the detection value of the force sensor 30 is converted into a digital value by an AD converter (not shown), and then the value is converted into a numerical value within the parameter range of the pitch bend message, i.e., 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 into the parameter value is 2 14 ×Detection value / 2 16The pitch bend parameter can be calculated as -8192. Other conversion tables may be used, or a calculation formula incorporating a correction such that the pitch bend parameter becomes 0 when the detection value of the force sensor 30 is near the neutral value may be adopted. Any other conversion method may be adopted. The output processing unit 56 outputs a pitch bend message using the converted detection value of the force sensor 30 as a parameter.

[0068] In step S220, the control unit 50 judges whether the power of the musical sound control device 410 has been turned off. If the control unit 50 judges that the power of the musical sound control device 410 has been turned off (S220: YES), the control unit 50 ends the sensor processing. If the control unit 50 judges that the power of the musical sound control device 410 has not been turned off (S220: NO), the control unit 50 returns to step S212 and executes the processing of step S212. In the musical sound control device 410, the sensor processing is executed as described above.

[0069] As described above, in the musical sound control device 410 according to the second embodiment, when the performer pulls the guitar strap 210 during playing or the like to generate tension between the electric guitar 200 and the guitar strap 210, a MIDI message for controlling musical sounds is output to the sound processor 100 according to the detection value detected by the force sensor 30. Furthermore, when the change in the detection value detected by the force sensor 30 is a predetermined change that satisfies the above-mentioned condition, the output state of the MIDI message is switched between the program change mode state and the pitch bend mode state. Therefore, the performer can switch the output state of the MIDI message between the program change mode state and the pitch bend mode state at any timing by intentionally changing the way the guitar strap 210 is pulled.

[0070] The first mode, program change mode, is a mode that can control discrete values ​​such as patch numbers. In the second embodiment, the patch numbers are increased and decreased, but control such as turning the state on and off is also possible. For example, MIDI control change message number 65 turns the portamento effect on and off, but if control change number 65 is output in the first mode, a switching operation such as portamento on when the guitar is pressed down and portamento off when the guitar is lifted can be realized without providing a separate operator.

[0071] The second mode, pitch bend mode, is a mode that can control changes in continuous values ​​such as pitch (strictly speaking, since this is digital processing, the numerical values ​​are also discrete in this case, but they are expressed as "continuous values" in contrast to the case of controlling numbers such as 1 and 2 in program change mode). In the second embodiment, a pitch bend message was output, but any MIDI message may be used as long as it has a continuous value as a parameter. For example, the modulation depth of control change number 1 or the volume of control change number 7 may be used to control the modulation depth or volume value.

[0072] In this way, with the musical sound control device 410, the performer can intentionally pull on the guitar strap 210, for example, to switch between musical sound control operations that increase or decrease number parameters or switch states such as on or off, and musical sound control operations that use continuous numerical values, without the need for a separate switching device.

[0073] Third embodiment Next, a third embodiment of the present invention will be described with reference to Figs. 9 to 13. In the description of the third embodiment, the description of the same configuration as the first embodiment will be omitted or simplified. In the performance system 3A shown in Fig. 9, a musical sound control system 510 according to the third embodiment includes a first control device CD1 and a second control device CD2. The first control device CD1 has the same configuration as the musical sound control device 10 in the first embodiment except for the electrical configuration of a sensor side control unit (first control unit) 550 provided therein. The first control device CD1 is a strap-type sensor that houses a force sensor 30 therein, and is provided in a form that connects between an electric guitar (musical instrument) 200 and a guitar strap (musical instrument holder) 210 that is worn on the shoulder to hold the electric guitar 200 by a player (user).

[0074] The second control device CD2 is a so-called stomp box type effecter, and is placed at the foot of the performer. The second control device CD2 includes a box-shaped housing 620, a connection jack section 622 provided on each of the left and right sides of the housing 620, four switch sections (push sections) 630 having a substantially circular shape provided at the lower part of the front surface of the housing 620, and four volume knob sections 640 provided at the upper part of the front surface of the housing 620. The second control device CD2 also includes a power switch (not shown). Four stomp side LEDs (second notification sections) 630L are provided on the upper side of each switch section 630 at positions corresponding to each switch section 630. Each switch section 630 can be pressed down, and for example, the performer presses down on it with his / her foot to perform the pressing operation. Each volume knob section 640 can be rotated, and for example, the performer pinches it with his / her fingers to perform the rotating operation.

[0075] One end of each connection jack 622 is connected to electric guitar 200, and the other end is connected to guitar amplifier 300 via shielded cable 220 or the like. Second control device CD2 takes in an electrical signal output from electric guitar 200, and outputs the taken-in electrical signal (signal) (hereinafter referred to as "output signal") to guitar amplifier 300. Guitar amplifier 300 outputs the output signal output from the second control device as a musical tone.

[0076] Communication between the first control device CD1 and the second control device CD2 is performed by a 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 related to the detection value of the force sensor 30 (hereinafter referred to as the "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 imparts various effects to the output signal and changes the parameters of the effect to be imparted to the output signal according to the detection value signal from the first control device CD1.

[0077] Next, the functions of each switch section 630 of the second control device CD2 will be described. The switch section 630 is, from the left, an effect switch 632, a lock switch 634, a wah switch 636, and a volume switch 638. The effect switch 632 is a switch that switches whether or not various effects are applied to the output signal by being pressed down. Specifically, the effect switch 632 switches between a control mode (first mode) in which an effect effect is applied to the output signal according to the detection value signal from the first control device CD1 (hereinafter referred to as an "effect on state") and a control mode (second mode) in which no effect effect is applied (hereinafter referred to as an "effect off state"). In the effect on state, the stomp side LED 630L corresponding to the effect switch 632 is lit up.

[0078] The lock switch 634 is a switch that switches whether or not to hold the detection value signal by being pressed down. Specifically, the lock switch 634 switches between a control mode (first mode) (hereinafter referred to as a "lock-on state") in which the detection value signal is held at the detection value signal input at the time of the pressing operation and the output signal is controlled regardless of the change in the detection value signal output from the first control device CD1, and a control mode (second mode) (hereinafter referred to as a "lock-off state") in which the input detection value signal is not held and the output signal is controlled according to the change in the input detection value signal. In the lock-on state, the stomp side LED 630L corresponding to the lock switch 634 is turned on.

[0079] The wow switch 636 is a switch that switches whether or not a wow effect, that is, a filter effect of a frequency characteristic according to the detection value of the force sensor 30, is applied to the output signal when pressed down. The volume switch 638 is a switch that switches whether or not the envelope of the output signal (the volume of the musical tone) is changed according to the detection value of the force sensor 30 when pressed down. Here, the wow switch 636 and the volume switch 638 are switches that operate exclusively, and one side is always in an OFF state and the other side is in an ON state. When one side is in an OFF state, pressing one side causes one side to be in an ON state and the other side to be in an OFF state, and when one side is in an ON state, pressing the other side causes the other side to be in an ON state and the one side to be in an OFF state.

[0080] Specifically, when the wah switch 636 is in an on state, the volume switch 638 is in an off state, and a control mode (first mode) (hereinafter referred to as a "wah effect applying mode") is set in which the frequency band of the output signal (musical sound) is changed according to the detection value signal from the first control device CD1. On the other hand, when the volume switch 638 is in an on state, the wah switch 636 is in an off state, and a control mode (second mode) (hereinafter referred to as a "volume control mode") is set in which the envelope of the output signal (volume of the musical sound) is changed according to the detection value signal from the first control device CD1. In the musical sound control system 510 according to the third embodiment, the control mode of the musical sound is set to either the wah effect applying mode or the volume control mode.

[0081] Next, the functions of the volume knobs 640 of the second control device CD2 will be described. From the left, the volume knobs 640 are a sense volume 642, a tone volume 644, a frequency volume 646, and a minimum volume adjustment volume 648. The sense volume 642 adjusts the sensitivity of the detection value of the force sensor 30 input from the first control device CD1. Specifically, the sense volume 642 increases the sensitivity at which the detection value is reflected in the effect of the output signal when it is turned in one direction, and decreases the sensitivity at which the detection value is reflected in the effect of the output signal when it is turned in the other direction. By decreasing the sensitivity, an effect with a fine change can be imparted.

[0082] Tone volume 644 adjusts the tone of the output signal. Specifically, turning tone volume 644 in one direction produces a rounded tone with no high frequencies, and turning it in the other direction produces a brighter tone with more high frequencies.

[0083] The frequency volume 646 adjusts the center frequency in the wow effect. In the wow effect, the resonant frequency of the bandpass filter is moved around the set center frequency. Specifically, the frequency volume 646 lowers the center frequency by turning it in one direction, and raises the center frequency by turning it in the other direction.

[0084] 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 0. Specifically, the minimum volume adjustment volume 648 is set to 0 by being turned all the way in one direction, and in this state, no sound is output when the detection value of the force sensor 30 is 0. Each of the volume knobs 640 described above can be adjusted in advance before the performer starts playing.

[0085] Next, the electrical configuration of the first control device CD1 will be described with reference to FIG. 10. The first control device CD1 is entirely controlled by a sensor side control unit 550 provided inside. The sensor side control unit 550 includes an arithmetic processing unit 551 configured by a computer such as a CPU. The arithmetic processing unit 551 is connected to a sensor side notification processing unit 552, a sensor side storage unit 553, a sensor side input unit 554, a sensor side instruction receiving unit 555, a sensor side communication unit 556, a start processing unit 557, and the like. The sensor side input unit 554 and the sensor side instruction receiving unit 555 are configured similarly to the input unit 54 and the instruction receiving unit 55 in the first embodiment, respectively, and their description will be omitted. In this embodiment, the LED provided on the first control device CD1 side 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 second control device CD2 side.

[0086] The sensor-side notification processor 552 is configured to notify the performer of various information by controlling the light emission state of each sensor-side LED 41L. For example, when the control state regarding the application of the currently set effect effect is in the effect-on state, a red light can be turned on, and when the control state regarding the currently set effect effect is in the effect-off state, a blue light can be turned on (first notification process). This makes it possible to notify the performer of which information (application information) is related to the application of the effect effect to the currently set output signal. Also, for example, the nine sensor-side LEDs 41L can be turned on with a green light like a level meter according to the currently set envelope of the output signal (musical tone volume) (second notification process). This makes it possible to notify the performer of information (volume information) related to the currently set musical tone volume.

[0087] The sensor-side storage unit 553, like the storage unit 53 in the first embodiment, is composed of an EEPROM (Electrically Erasable Programmable ROM) that stores programs for controlling the CPU, and a flash memory that temporarily stores various data 553B, etc. The sensor-side storage unit 553 stores a program 553A for executing each process executed by the sensor-side control unit 550.

[0088] 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. The sensor side communication unit 556 also inputs (receives) information related to the currently set application of an effect and information related to the currently set volume of the musical sound output from the second control device CD2. The sensor side communication unit 556 also inputs (receives) a signal (start-up signal) for turning on the power of the first control device CD1 output from the second control device CD2. The sensor side communication unit 556 also outputs (transmits) information related to the remaining battery capacity of the first control device CD1 (remaining capacity information) to the second control device CD2 (fourth output process). The remaining capacity information may be output to the second control device CD2 at a predetermined interval, or may be output to the second control device CD2 when the remaining capacity becomes equal to or less than a predetermined value.

[0089] The startup processing unit 557 executes a startup process for turning on the power supply of the first control device CD1. Specifically, in the first control device CD1, the CPU of the sensor side control unit 550 is in a sleep state when the power supply is off, and only the sensor side communication unit 556 is in a power-on state. When the power supply of the first control device CD1 is off, the sensor side communication unit 556 executes the above startup process on the condition that a signal (startup signal) for turning on the power supply of the first control device CD1 is input (received) from the second control device CD2.

[0090] Next, the electrical configuration of the second control device CD2 will be described with reference to Fig. 11. The second control device CD2 is entirely controlled by the stomp-side control unit 650 provided inside. The stomp-side control unit 650 has an arithmetic processing unit 651 configured from a computer such as a CPU. The arithmetic processing unit 651 is connected to 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 receiving unit 655, a stomp-side communication unit 656, an effect unit (tone control unit) 657, an output unit (audio signal output unit) 658, a switching processing unit 659, and the like. The electrical circuit that constitutes the stomp-side control unit 650 may be realized in an analog manner, or may be realized in a digital manner by a DSP (Digital Signal Processor).

[0091] The stomp-side notification processing unit 652 is configured to notify the performer of various information in such a manner that the on / off state of each switch unit 630 can be determined by controlling the light emission state of each stomp-side LED 630L. For example, when the remaining battery capacity of the first control device CD1 is low, all four stomp-side LEDs 630L can be lit in red at a predetermined interval, and when the remaining battery capacity is sufficient, all four stomp-side LEDs 630L can be lit in blue at a predetermined interval (third notification processing). This makes it possible to notify the performer of information regarding the remaining battery capacity of the first control device CD1.

[0092] The stomp-side storage unit 653, like the storage unit 53 of the first embodiment, is composed of an EEPROM (Electrically Erasable Programmable ROM) for storing programs for controlling the CPU, and a flash memory for temporarily storing various data 653B. 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 also stores a flag (hereinafter referred to as an "effect flag") related to the on / off state of the effect switch 632, a flag (hereinafter referred to as a "lock flag") related to the on / off state of the lock switch 634, and a flag (hereinafter referred to as a "wah / volume switching flag") related to the switching state of the wah switch 636 and the volume switch 638.

[0093] The stomp-side input section 654 is configured to detect the depression of each switch section 630. The stomp-side instruction receiving section 655 is configured to receive various instructions from the player by the rotation of each volume knob section 640.

[0094] The stomp-side communication unit 656 inputs (receives) the detection value signal output from the first control device CD1. The stomp-side communication unit 656 also outputs (transmits) information on the currently set application of the effect to the first control device CD1 (first output process). The stomp-side communication unit 656 also outputs (transmits) information on the currently set volume of the musical sound to the first control device CD1 (second output process). The stomp-side communication unit 656 also outputs (transmits) a signal (start-up signal) for turning on the power supply of the first control device CD1 to the first control device CD1 (third output process). The stomp-side communication unit 656 also inputs (receives) information on the remaining battery capacity of the first control device CD1 output from the first control device CD1 (remaining capacity information).

[0095] The effect section 657 applies the above-mentioned various effects to the output signal and changes the parameters 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 a connection jack section 622 and outputs an output signal to the guitar amplifier 300. When the stomp side input section 654 detects that each switch section 630 has been pressed down, the switching processing section 659 switches the control mode for controlling the output signal (musical sound) according to the detection value signal from the first control device CD1 according to the function of the pressed switch section 630.

[0096] Next, the flow until the first control device CD1 is powered on and the processing executed by the sensor side control unit 550 of the first control device CD1 will be described with reference to Fig. 12. As described above, when the first control device CD1 is powered off, the CPU of the sensor side control unit 550 is in a sleep state and the first control device CD1 is in a standby state with only the sensor side communication unit 556 powered on. In this state, when the button unit 42 for turning on the first control device CD1 provided on the first control device CD1 is manually pressed down to turn on the first control device CD1 (S310: YES), the start-up processing unit 557 turns on the sensor side control unit 550, and the sensor side control unit 550 executes the processing of step S316.

[0097] On the other hand, if button unit 42 for turning on first control device CD1 is not pressed (S310: NO) and a startup signal is input from second control device CD2 to sensor-side communication unit 556 (S312: YES), power to first control device CD1 is turned on (start-up process) (S314), startup processing unit 557 places sensor-side control unit 550 in the on state, and sensor-side control unit 550 executes the process of step S316. If button unit 42 for turning on first control device CD1 is not pressed and a startup signal is not input (S312: NO), the process returns to step S310 and the standby state of first control device CD1 is maintained.

[0098] In step S316, the sensor side control unit 550 executes calibration. When the calibration is completed, the sensor side control unit 550 proceeds to step S318, and when tension is detected by the force sensor 30, the sensor side control unit 550 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 unit 550 proceeds to step S320, and judges whether the power supply of the first control device CD1 has been turned off. When the sensor side control unit 550 judges that the power supply of the first control device CD1 has been turned off (S320: YES), the process ends. When the sensor side control unit 550 judges that the power supply of the first control device CD1 has not been turned off (S320: NO), the process returns to step S318, and outputs a detection value signal according to the detection value of the force sensor 30. In the first control device CD1, the process is performed as described above.

[0099] Next, the switching process executed by the stomp-side control unit 650 of the second control device CD2 will be described with reference to FIG. 13. The switching process is started by pressing the power switch of the second control device CD2 to turn on the power. Immediately after the power of the second control device CD2 is turned 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 unit 650 first judges whether the effect switch 632 has been pressed (step S410). If the stomp-side control unit 650 judges that the effect switch 632 has been pressed (S410: YES), the process proceeds to step S420. If the stomp-side control unit 650 judges that the effect switch 632 has not been pressed (S410: NO), the process proceeds to step S412.

[0100] In step S420, the stomp-side control unit 650 judges whether the effect flag stored in the stomp-side storage unit 653 is in the effect-on state. If it is judged 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 proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling the musical tone 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 judged 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 process) (step S422), and proceeds to step S418.

[0101] In step S412, the stomp-side control unit 650 judges whether the lock switch 634 has been pressed. If the stomp-side control unit 650 judges that the lock switch 634 has been pressed (S412: YES), the process proceeds to step S430. If the stomp-side control unit 650 judges that the lock switch 634 has not been pressed (S412: NO), the process proceeds to step S414.

[0102] In step S430, the stomp-side control unit 650 judges whether or not the effect flag stored in the stomp-side storage unit 653 is in the effect-on state. If it is judged in S430 that the effect flag is not in the effect-on state (S430: NO), the stomp-side control unit 650 proceeds to step S418. On the other hand, if it is judged in S430 that the effect flag is in the effect-on state (S430: YES), the stomp-side control unit 650 proceeds to step S432 and judges whether or not the lock flag stored in the stomp-side storage unit 653 is in the lock-on state.

[0103] If it is determined in step S432 that the lock flag is not in the locked-on state (S432: NO), the switching processor 659 of the stomp-side controller 650 switches the lock flag to the locked-on state, stores it in the stomp-side memory 653 (switching process) (step S436), and proceeds to step S418. As a result, in the second controller CD2, the control mode for controlling the musical tones according to the detection value signal from the first controller CD1 is set to the locked-on state. On the other hand, if it is determined in step S432 that the lock flag is in the locked-on state (S432: YES), the switching processor 659 switches the lock flag to the locked-off state, stores it in the stomp-side memory 653 (switching process) (step S434), and proceeds to step S418.

[0104] In step S414, the stomp-side control section 650 judges whether the wah switch 636 has been pressed down. If the stomp-side control section 650 judges that the wah switch 636 has been pressed down (S414: YES), the process proceeds to step S440. If the stomp-side control section 650 judges that the wah switch 636 has not been pressed down (S414: NO), the process proceeds to step S416.

[0105] In step S440, the stomp-side control unit 650 judges whether or not the effect flag stored in the stomp-side storage unit 653 is in the effect-on state. If it is judged in step S440 that the effect flag is not in the effect-on state (S440: NO), the stomp-side control unit 650 proceeds to step S418. On the other hand, if it is judged in step S440 that the effect flag is in the effect-on state (S440: YES), the stomp-side control unit 650 proceeds to step S442 and judges whether or not the wah / volume switching flag stored in the stomp-side storage unit 653 is in the wah effect applying mode state.

[0106] When it is determined in step S442 that the wah / volume switching flag is not in the wah effect applying mode state (S442: NO), the switching processing unit 659 of the stomp-side control unit 650 switches the wah / volume switching flag to the wah effect applying mode state, stores it in the stomp-side storage unit 653 (switching process) (step S444), and proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling the musical sound according to the detection value signal from the first control device CD1 is set to the wah effect applying mode state. On the other hand, when it is determined in step S442 that the wah / volume switching flag is in the wah effect applying mode state (S442: YES), the switching processing unit 659 maintains the wah effect applying mode state without executing the switching process, and proceeds to step S418.

[0107] In step S416, the stomp-side control unit 650 judges whether the volume switch 638 has been pressed down. If the stomp-side control unit 650 judges that the volume switch 638 has been pressed down (S416: YES), the process proceeds to step S450. If the stomp-side control unit 650 judges that the volume switch 638 has not been pressed down (S416: NO), the process proceeds to step S418.

[0108] In step S450, the stomp-side control unit 650 judges whether or not the effect flag stored in the stomp-side storage unit 653 is in the effect-on state. If it is judged in step S450 that the effect flag is not in the effect-on state (S450: NO), the stomp-side control unit 650 proceeds to step S418. On the other hand, if it is judged in step S450 that the effect flag is in the effect-on state (S450: YES), the stomp-side control unit 650 proceeds to step S452 and judges whether or not the wah / volume switching flag stored in the stomp-side storage unit 653 is in the volume control mode state.

[0109] When it is determined in step S452 that the wow / 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 wow / volume switching flag to the volume control mode state, stores it in the stomp-side storage unit 653 (switching process) (step S454), and proceeds to step S418. As a result, in the second control device CD2, the control mode for controlling the musical sound according to the detection value signal from the first control device CD1 is set to the volume control mode state. On the other hand, when it is determined in step S452 that the wow / 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.

[0110] The process of outputting the information on the currently set effect application from the stomp side communication unit 656 to the first control device CD1 can use the results of the determinations of steps S420, S430, S440, and S450 for determining the on / off state of the effect flag, and can be executed following the processing of each step. The timing of the output of the information on the application of the effect by the stomp side communication unit 656 is not limited to immediately after the execution of steps S420, S430, S440, and S450, and may be any timing after the determination of the on / off state of the effect flag. The process of outputting the information on the currently set volume of the musical tone from the stomp side communication unit 656 to the first control device CD1 can be executed after the volume control mode state is turned on, for example, after steps S452 and S454.

[0111] In step S418, the stomp-side control unit 650 judges whether the power supply of the second control device CD2 has been turned off. If the stomp-side control unit 650 judges that the power supply of the second control device CD2 has been turned off by pressing the power switch of the second control device CD2 (S418: YES), the switching process ends. If the stomp-side control unit 650 judges that the power supply of the second control device CD2 has not been turned off (S418: NO), the process returns to step S410 and executes the process of step S410. In the musical tone control system 510, the switching process is executed as described above.

[0112] As described above, in the musical sound control system 510 according to this 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 sound is controlled according to the input detection value. Furthermore, the control mode of the musical sound is switched by the performer pressing down each switch section 630 of the second control device CD2 during playing or the like. Therefore, the performer can reliably switch the control mode of the musical sound by pressing down each switch section 630 with his / her foot while controlling the musical sound by changing the way of pulling the guitar strap 210 or the like. Furthermore, the performer can play away from the second control device CD2 except when switching the control mode of the musical sound, so that the performer is not restricted by the place of performance and can concentrate more on playing and performance, thereby enhancing the dramatic effect of the performance.

[0113] In the musical sound control system 510, the first mode, the effect-on state, is a control mode in which an effect effect is applied to the musical sound, and the second mode, the effect-off state, is a control mode in which no effect effect is applied to the musical sound. This allows for a specific configuration to be realized for switching the control mode of the musical sound between the effect-on state and the effect-off state.

[0114] In the musical sound control system 510, the first mode, ie, the lock-on state, is a control mode in which the input detection value is held and the musical sound is controlled, and the second mode, ie, the lock-off state, is a control mode in which the input detection value is not held and the musical sound is controlled in response to a change in the input detection value. This makes it possible to realize a specific configuration for switching the musical sound control mode between the lock-on state and the lock-off state.

[0115] In the musical sound control system 510, the first mode, ie, the wah effect applying mode state, is a control mode in which the frequency band of the musical sound is changed according to the detection value, and the second mode, ie, the volume control mode state, is a control mode in which the volume of the musical sound is changed according to the detection value. This makes it possible to realize a specific configuration for switching the control mode of the musical sound between the wah effect applying mode state and the volume control mode state.

[0116] In the musical sound control system 510, the first control device CD1 includes a sensor-side LED 41L that notifies the user of the addition information regarding whether or not an effect is applied to the musical sound, the stomp-side control unit 650 executes a first output process that outputs the addition information to the first control device CD1, and the sensor-side control unit 550 executes a first notification process that changes the notification mode according to the inputted addition information and notifies the user with the sensor-side LED 41L. This allows the player to recognize whether or not an effect is applied to the musical sound by looking at the sensor-side LED 41L.

[0117] In addition, in the musical sound control system 510, the first control device CD1 includes a sensor-side LED 41L that notifies the volume information of the musical sound output from the electric guitar 200 as information on the envelope of the detection value signal, and the stomp-side control section 650 executes a second output process that outputs the volume information to the first control device CD1, and the sensor-side control section 550 executes a second notification process that changes the notification mode according to the inputted volume information and notifies the sensor-side LED 41L. This allows the performer to recognize the volume information of the musical sound by looking at the sensor-side LED 41L.

[0118] In the musical tone control system 510, the stomp-side control unit 650 executes a third output process of outputting a start signal to the first control device CD1 to turn on the power of the first control device CD1, and the sensor-side control unit 550 has a start-up processing unit 557 that executes a start-up process of turning on the power of the first control device CD1 on the condition that the start-up signal is input when the power of the first control device CD1 is off. This allows the performer to turn on the power of the first control device CD1 by operating the second control device CD2 arranged at the performer's feet without directly operating the first control device CD1. In general, it is easier to operate a device at the performer's feet than to operate a switch or the like attached to a guitar strap, so operability is improved. Also, the start-up signal may be output from the second control device CD2 to the first control device CD1 in conjunction with the power of the second control device CD2 being turned on.

[0119] In the musical tone control system 510, the second control device CD2 includes a stomp-side LED 630L that notifies remaining capacity information about the remaining battery capacity of the first control device CD1, the sensor-side control unit 550 executes a fourth output process that outputs the remaining capacity information to the second control device CD2, and the stomp-side control unit 650 executes a third notification process that changes the notification mode according to the input remaining capacity information and notifies the remaining capacity information through the stomp-side control unit 650. This allows the performer to recognize the remaining battery capacity of the first control device CD1 by looking at the stomp-side LED 630L.

[0120] It should be noted that the above-described embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, 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 and its equivalents described in the claims.

[0121] For example, in each of the above embodiments, the sound processor 100 and the musical sound control device 10 communicate with each other via wireless communication means. However, instead of the sound processor 100, a smartphone or a PC on which an effect application is installed may communicate with the musical sound control device 10 via wireless communication means. When a PC is used, the receiving device may be connected via USB. 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 in response to a control signal from the musical sound control device 10.

[0122] In addition, in each of the above embodiments, the second determination processing unit 58 determines that the "predetermined condition" exists when the detection value of the force sensor 30 exceeds the MAX value from the neutral value state and falls below the MAX value within Δt milliseconds, but the condition required to satisfy the "predetermined condition" is not limited to this. Also, the condition required to satisfy the "predetermined condition" may be arbitrarily set by the performer.

[0123] In addition, in the above first embodiment, a configuration was exemplified in which the output state of a control signal is switched between an output on state and an output off state, and in the above second embodiment, a configuration was exemplified in which the output state of a MIDI message is switched between a program change mode state and a pitch bend mode state, but the output states of signals switched by the switching process of the present invention are not limited to these.

[0124] In the third embodiment, the lock switch is switched between the locked-on state and the locked-off state each time the lock switch is pressed down, but the lock switch may be in the locked-on state only while the lock switch is pressed down, and may be in the locked-off state when the lock switch is released. In the third embodiment, the switch units are circular, but the switch units may be rectangular pedal-type switches that are easy to step on with a foot. In the third embodiment, the second control device is connected to one electric guitar, but multiple second control devices may be connected to one electric guitar depending on the type of effect to be applied to musical tones. [Explanation of symbols]

[0125] 1A, 1B Performance system 10 Musical tone control device 10 Musical tone control device 11 Connection button section 11a Connection button 12 Connection ring part 12a Connection opening 15 Strap pin 20 Case 21 Front case 21a Inclined portion 21b Indicator portion 21c Front 21d Button opening 22 Rear case 22b Battery cover 25 Battery 30 Force sensor 31 first shaft 31d first connecting shaft 32 second shaft 32d second connecting shaft 33 1st sheet metal 34 2nd sheet metal 38 Load cell 40 Circuit board 41 LED 42 Button section 50 Control section 51 Arithmetic processing section 52 Notification processing unit 53 Storage unit 53A Program 53B Data 54 Input section 55 Instruction receiving section 56 output processing unit 57 first determination processing unit 58 Second determination processing unit 59 Switching processing unit 80A First receiving device 80B Second receiving device 100 Sound processor 110 Electrical signal input unit 120 Effect section 130 Electrical 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 unit 551 arithmetic processing unit 552 sensor side notification processing unit 553 Sensor side memory unit 553A Program 553B Data 554 Sensor side input section 555 Sensor side instruction receiving unit 556 Sensor side communication unit 557 Startup processing section 620 Housing 622 Connection jack section 630 Switch section 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 receiving section 656 Stomp side communication section 657 Effect section 658 Output unit 659 Switching processing unit CD1 First control device CD2 Second control device W waveform

Claims

1. a detection unit that detects a tension generated between the musical instrument and the musical instrument holder; A control unit, The control unit is When the detection value detected by the detection unit changes to a value larger than a predetermined threshold value and then changes to a value smaller than the threshold value within a predetermined time, the detection value is determined to be a predetermined change; executing a switching process of switching an output mode of a signal between a first mode and a second mode depending on whether or not a change in the detection value detected by the detection unit is the predetermined change; A musical tone control device comprising:

2. when the control unit determines that the change in the detection value is the predetermined change, the control unit changes the output mode to the second mode on condition that the output mode is the first mode, and changes the output mode to the first mode on condition that the output mode is the second mode.

2. The musical tone control device according to claim 1,

3. When the control unit determines that the change in the detection 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 a signal in the second mode on condition that the output mode is the second mode.

2. The musical tone control device according to claim 1,

4. The first mode is an output mode for outputting the signal, The second mode is an output mode in which the signal is not output.

4. The musical tone control device according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

5. The first aspect is an output aspect in which a detection value detected by the detection unit is converted into one of discrete values, and a signal corresponding to a parameter according 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 a parameter according to the converted value is output.

4. The musical tone control device according to claim 1, wherein the first and second inputs are connected to the first and second inputs.

6. a notification unit that notifies the user that the tension is occurring, The control unit has a notification processing unit that executes a notification process in which the notification unit changes a notification mode in response to the detection value and notifies the user.

2. The musical tone control device according to claim 1,

7. A receiving device capable of wireless communication with the receiving device connected to an effect device that applies effects to the musical tones of the musical instrument.

2. The musical tone control device according to claim 1,

8. A computer of a musical tone control device having a detection unit that detects tension generated between a musical instrument and a musical instrument holder, When the detection value detected by the detection unit changes to a value larger than a predetermined threshold value and then changes to a value smaller than the threshold value within a predetermined time, the detection value is determined to be a predetermined change; executing a switching process of switching a signal output mode between a first mode and a second mode depending on whether or not the change in the detection value detected by the detection unit is the predetermined change; A musical tone control program comprising:

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