JP7156470B2 - Controllers and electronic musical instruments - Google Patents

Description

The present invention relates to operators and electronic musical instruments .

Electronic musical instruments are known that have a function of navigating a performance according to automatic performance or automatic accompaniment. For example, there is an electronic keyboard instrument in which keys to be played are illuminated in sequence according to an automatic performance, so that a novice player can navigate by light how to press the keys. (For example, Patent Document 1).

Electronic musical instruments such as electronic keyboard instruments are often equipped with pitch bender wheels and modulation wheels for adding performance effects such as pitch bend and vibrato. For example, in an electronic keyboard instrument, if a user can operate a pitch bend or modulation wheel when playing a melody on a keyboard according to automatic accompaniment or the like, the user can perform more diverse performances. In this case, for novice users, pitch bend and modulation wheel operations are more difficult than keyboard performance.

JP-A-10-222160

However, in conventional electronic musical instruments, effect adding devices such as the pitch bender wheel and the modulation wheel are merely equipped with circular controls that can be rotated with the finger, for example, and navigation for their operation is provided. could not be done effectively.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an operator and an electronic musical instrument that are visually appealing .

An example of the operation element is a circular operation element including a plurality of light source units and a light guide member having a plurality of light guide regions for respectively guiding the light emitted from the plurality of light source units, A plurality of light source units are arranged in cutout portions of the light guide member positioned coaxially with the wheel hole of the operator so as to individually illuminate the plurality of light guide regions.

According to the present invention, it is possible to provide an operator and an electronic musical instrument that are visually appealing .

1 is a perspective view of an embodiment of an effect adding device as seen from the front side; FIG. FIG. 4 is a perspective view of an embodiment of an effect adding device as seen from the back side; 1 is an exploded view of one embodiment of an effect adding device; FIG. 1 is a side view of an embodiment of an effect adding device; FIG. 1 is a diagram showing an appearance example of an embodiment of an electronic keyboard instrument equipped with an effect adding device; FIG. 1 is a block diagram showing a hardware configuration example of an embodiment of a control system for an electronic keyboard instrument; FIG. 4 is a main flowchart showing an example of control processing of the electronic musical instrument according to the embodiment; 4 is a flowchart showing a detailed example of controller processing; FIG. 11 is a flow chart showing a detailed example of a pitch bender wheel LED control subroutine; FIG. It is an explanatory view of this embodiment. FIG. 11 is a flow chart showing a detailed example of a modulation wheel LED control subroutine; FIG.

EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates in detail, referring drawings for the form for implementing this invention. 1 to 4 are diagrams showing the structure of one embodiment of the effect adding device, wherein FIG. 1 is a perspective view seen from the front side, FIG. 2 is a perspective view seen from the back side, and FIG. 4 is a side view.

As shown in the perspective view of FIG. 1(a), the effect adding device 100 according to the present embodiment has a pitch bender wheel unit 101a and a modulation wheel unit 101b that are mounted on the left side of the keyboard of an electronic keyboard instrument (see FIG. 5, which will be described later). is housed in the case 110 of the. As shown in the perspective view of FIG. 1(b), the pitch bender wheel unit 101a has a pitch bender wheel 102a to which a light guide member 103a is assembled (or attached) on the left side, for example, when viewed from the front side of the musical instrument. , and an L-shaped bracket 104a. Similarly, the modulation wheel unit 101b has a structure in which a modulation wheel 102b with a light guide member 103b assembled (or attached) on the left side, for example, when viewed from the front side of the instrument, is attached to an L-shaped metal fitting 104b. As shown in FIG. 2, when viewed from the back side of the case 110, the pitch bender wheel unit 101a and the modulation wheel unit 101b have respective L-shaped brackets 104a, 104b as indicated by the four dashed arrows in FIG. A total of four screws are passed through each of the two screw holes provided in the case 110 and screwed into four fixing holes on the case 110 side.

In the following description, the pitch bender wheel unit 101a and the modulation wheel unit 101b may be collectively referred to as the wheel unit 101. FIG. Pitch bender wheel 102a and modulation wheel 102b may be collectively referred to as wheel 102 . The light guide members 103 a and 103 b may be collectively referred to as a light guide member 103 . The L-shaped fittings 104 a and 104 b may be collectively referred to as an L-shaped fitting 104 .

The wheel unit 101, as shown in the exploded view of FIG. A light guide member 103 consisting of (#3) and 103 (#4) is assembled (or pasted with a transparent adhesive), and a movable shaft 306 of a rotary encoder 301 passes through a metal fitting hole 308 of an L-shaped metal fitting 104. , is fixed to the wheel hole 307 of the wheel 102 , and the fixing member 302 is screwed to the mounting portion 303 of the L-shaped member 104 with two screws 304 and 305 so as to be slightly lifted from the light guide member 103 .

As shown in the side view of FIG. 4(b), for example, acrylic light guide members 103 are arranged adjacent to each other so as to cover, for example, the left side of the wheel 102 when viewed from the front of the instrument. It is composed of four light guide regions 103 (#1), 103 (#2), 103 (#3), and 103 (#4) that are fan-shaped from the center of the wheel hole 307 toward the circumference.

Four fan-shaped light guide regions 103 (#1) and 103 (#2) each constituting the light guide member 103 are located at the cutout portion 402 of the light guide member 103 coaxially with the wheel hole 307. , 103(#3), and 103(#4), which are four light source units for illuminating the fan-shaped directions, are installed. Light emission of these LEDs 401 is controlled from the instrument side via lead wires 402 .

The four fan-shaped light guide regions 103 (#1), 103 (#2), 103 (#3), and 103 (#4) of the light guide member 103 are individually illuminated by the corresponding LEDs 401. For example, a light-shielding material is sealed in the boundary portion of each area.

In order to enable the four fan-shaped light guide regions 103 (#1), 103 (#2), 103 (#3), and 103 (#4) of the light guide member 103 to emit light of different colors, , each fan-shaped member may be formed of a member of a different color. Alternatively, the surface of each fan-shaped member may be colored with a different color.

The unit of the light guide member 103 and the LED 401 having the structure shown in FIG. 4B is assembled to the left side of the wheel 102 shown in FIG. 4(c), it is fixed to the mounting portion 303 of the L-shaped metal fitting 104 by the fastener 302 and two screws 304, 305 shown in FIG.

FIG. 5 is a diagram showing an appearance example of an embodiment of an electronic keyboard instrument 500 equipped with the pitch bender wheel unit 101a and the modulation wheel unit 101b shown in FIGS. 1-4. The electronic keyboard instrument 500 includes a keyboard 501 consisting of a plurality of keys as performance operators, a switch panel 502 for selecting tone color and various functions other than tone color, a pitch bender wheel unit 101a, a modulation wheel unit 101b, and various functions. An LCD (Liquid Crystal Display) 505 or the like for displaying setting information is provided. Although not shown, the electronic keyboard instrument 500 is provided with a speaker for emitting musical tones generated by a performance on the back, side, back, or the like. In the pitch bender wheel unit 101a, the pitch bender wheel 102a and the light guide member 103a are arranged on the left side of the pitch bender wheel 102a when viewed from the front side of the electronic keyboard instrument 100, for example. In the modulation wheel unit 101b, a light guide member 103b is arranged on the left side of the modulation wheel 102b and, for example, the modulation wheel 102b when viewed from the front side.

FIG. 6 is a diagram showing a hardware configuration example of an embodiment of the control system 600 of the electronic keyboard instrument 500 of FIG. 6, an electronic keyboard instrument 500 includes a sound source LSI (large-scale integrated circuit) 605, a key scanner 607 to which the keyboard 501 of FIG. 5 and the switch panel 502 of FIG. 5 are connected, individual A/D ( An analog/digital) converter 608 , a D/A (digital/analog) converter 612 , and an LCD controller 609 to which the LCD 505 in FIG. 5 is connected are each connected to a system bus 612 . Digital musical waveform data output from the tone generator LSI 605 is converted into an analog musical waveform signal by a D/A converter 610, amplified by an amplifier 611, and then output from a speaker or an output terminal (not shown).

The CPU 601 executes the control program stored in the ROM 602 while using the RAM 603 as a work memory to control the electronic keyboard instrument 500 shown in FIG. Also, the ROM 602 stores the control program and various fixed data.

The CPU 601 is equipped with a timer 604 used in this embodiment, which counts the timing of beats in automatic performance of the electronic keyboard instrument 100, for example.

The tone generator LSI 605 reads the waveform from the waveform ROM 606 and outputs it to the D/A converter 610 . The tone generator LSI 605 has the ability to simultaneously oscillate up to 256 voices.

The key scanner 607 constantly scans the operation button states of the keyboard 501 (FIG. 5) and the switch panel 502, interrupts the CPU 601, and informs the state change.

An A/D converter 608 consisting of two A/D converter circuits is connected to the pitch bender wheel unit 101a and modulation wheel unit 101b, which constitute the effect adding device 100 of FIG. By reading the current value of the A/D converter 608, the CPU 601 knows the state of the operator at that time. Conversely, the CPU 601 emits light from the D/A converter 612 via the lead wire 402 shown in FIG. Control.

An LCD controller 609 is an IC (integrated circuit) that controls the LCD 505 .

The operation of this embodiment having the configuration examples of FIGS. 5 and 6 will be described in detail below. In this embodiment, the signal sources for controlling the tone generator LSI 605 include the performance of the keyboard 501, the operation of the switch panel 502 for changing the timbre, the operation of the pitch bender wheel unit 101a and the modulation wheel unit 101b. Performance signals generated by these means are sent to the tone generator LSI 605 .

FIG. 7 is a main flowchart showing an example of control processing of the electronic musical instrument according to this embodiment. This processing is implemented as processing in which the CPU 601 in FIG. 6 executes the control program stored in the ROM 603 . The processing here is roughly divided into the following five.
Initialization processing (step S701): Executed only when the power is turned on.
User interface processing (step S702): processing of operation monitoring, setting change, and display. Includes processing for switching timbres.
Controller processing (step S703): State monitoring of pitch bender wheel unit 101a and modulation wheel unit 101b, issuance of MIDI message commands (writing to sound source command buffer), and light emission control of LED 401 of each wheel unit 101.
Sound source command processing (step S704): The sound source commands loaded in the command buffer of the sound source are analyzed and processed in order.
Sound source regular service processing (step S706): Executes voice generation state control processing and the like.

First, the CPU 601 executes initialization processing (step S701). Here, the CPU 601 initializes the timer 604 in FIG. 6, initializes the tone generator LSI 605 in FIG. 6, initializes the LCD 505 in FIGS. Initialization, initialization of the key scanner 607 in FIG. 6, and initialization of variables on the RAM 602 in FIG. 6 are executed.

After the initialization process in step S701, the CPU 601 repeatedly executes a series of processes from steps S702 to S706. In this series of processes, the CPU 601 first executes user interface processing (step S702). In this process, the CPU 601 reads the states of the buttons on the switch panel 502 via the key scanner 607 and changes the state of the device or updates the display state of the LCD 105 according to the change. When the timbre selection button on the switch panel 502 is operated, the CPU 601 calls a tone generator command buffer write subroutine to write a timbre change MIDI message command into the tone generator command buffer.

Next, the CPU 601 executes controller processing (step S703). In this processing, operation position information when the performer operates the pitch bender wheel unit 101a and the modulation wheel unit 101b of FIG. will be Also, the CPU 601 controls light emission of the LEDs 401 of the pitch bender wheel unit 101a and the modulation wheel unit 101b based on the automatic performance. The details of this process will be described later with reference to the flowcharts of FIGS. 8 to 10 .

Next, the CPU 601 executes sound source command processing (step S704). Here, the CPU 601 sequentially reads out commands from the tone generator command buffer while advancing the value of the read pointer RP on the tone generator command buffer one by one. command processing. Here, the key-depression and key-release commands are written into the tone generator command buffer by a key scanner interrupt that occurs when the key scanner 607 in FIG. 6 detects the operation of the keyboard 501 in FIG. Also, the pitch bender wheel and modulation wheel commands are written to the tone generator command buffer in the controller processing of step S703, which will be described later.

Next, the CPU 601 executes automatic performance processing (step S705). Here, when the performer instructs automatic performance from the switch panel 502, the CPU 601 reads the automatic performance data of the instructed music stored in the ROM 603, for example, and synchronizes it with the beat timing counted by the timer 604. The tone generator LSI 205 performs automatic performance by executing writing to the tone generator command buffer while sequentially reading the data. When the performance effect designation of pitch bend included in the automatic performance data occurs during execution of the automatic performance, the pitch bend target value designated by the automatic performance data is written to the variable AUTO_PITCH_BEND in the RAM 602 . Similarly, when performance effect designation of vibrato included in automatic performance data occurs during execution of automatic performance, a modulation target value designated by the automatic performance data is written in AUTO_MOD which is a variable in RAM 602. - 特許庁

Subsequently, the CPU 601 executes sound source regular service processing (step S706). Here, the CPU 601 monitors and controls temporal changes in the pitch, volume, etc. of the voice being sounded.

FIG. 8 is a flowchart showing a detailed example of controller processing in step S703 of FIG. In the processing of FIG. 8, the CPU 601 first reads the A/D value of the pitch bender wheel unit 101a output from the A/D converter 608 of FIG. 6 (step S801).

Next, the CPU 601 converts the A/D value read in step S801 into the MIDI format and stores it in the temporary register a (step S802).

Next, CPU 601 executes a pitch bender wheel LED control subroutine (step S803). Here, the CPU 601 executes pitch bend navigation by light emission control of the four LEDs 401 (see FIG. 4) of the pitch bender wheel unit 101a. The details of this subroutine will be described later.

Next, the CPU 601 determines whether or not the contents of the register a are the same as the variable value indicating the latest operation position of the pitch bender wheel unit 101 stored in the RAM 602 (step S804). If a new operation is performed on the pitch bender wheel unit 101a and the determination in step S804 is NO, the CPU 601 calls a sound source command buffer write subroutine to send a MIDI message for changing the control value of the pitch bender wheel unit 101a. The command is written in the tone generator command buffer (step S805). The CPU 601 replaces the variable value indicating the latest operating position of the pitch bender wheel unit 101a stored in the RAM 602 with the value of the register a.

Next, the CPU 601 reads the A/D value of the modulation wheel unit 101b output from the A/D converter 608 in FIG. 6 (step S806).

Subsequently, the CPU 601 converts the A/D value read in step S806 into the MIDI format and stores it in the register a (step S807).

Next, CPU 601 executes a modulation wheel LED control subroutine (step S808). Here, the CPU 601 executes modulation navigation by light emission control of the four LEDs 401 (see FIG. 4) of the modulation wheel unit 101b. The details of this subroutine will be described later.

Subsequently, the CPU 601 determines whether the contents of the register a are the same as the variable value indicating the latest operation position of the modulation wheel unit 101b stored in the RAM 602 (step S809). If a new operation is performed on the modulation wheel unit 101b and the determination in step S809 is NO, the CPU 601 calls the tone generator command buffer writing subroutine to issue a MIDI message command for changing the control value of the modulation wheel unit 101b. Write to the tone generator command buffer (step S810). The CPU 601 replaces the variable value indicating the latest operation position of the modulation wheel unit 101b stored in the RAM 602 with the value of the register a.

FIG. 9 is a flow chart showing a detailed example of the pitch bender wheel LED control subroutine of step S803 of FIG. In this subroutine, as described above, the CPU 601 executes pitch bend navigation by light emission control of the four LEDs 401 of the pitch bender wheel unit 101a. As shown in the explanatory diagram of this embodiment shown in FIG. 10, in the following description, the four fan-shaped light guide regions (103 (# in FIG. 4B)) of the light guide member 103a of the pitch bender wheel unit 101a 1), 103(#2), 103(#3), and 103(#4)) are called LED1, LED2, LED3, and LED4.

First, the CPU 601 reads the latest value of automatic performance pitch bend stored in the variable AUTO_PITCH_BEND in the RAM 602 into the register b (step S901).

Next, the CPU 601 subtracts the operation value of the pitch bender wheel unit 101a obtained in the register a in step S802 of FIG. 8 from the value of the register b, and stores the subtraction result in the register c (step S902). ).

The CPU 601 determines whether or not the absolute value of the register c is smaller than the first pitch bend threshold BEND_THRESH1 stored in the ROM 603 (step S903).

If the determination in step S903 is YES, the CPU 601 determines that the performer is operating the pitch bender wheel unit 101a close to the pitch bend target value specified by the automatic performance, and does not perform LED light emission control. The pitch bender wheel LED control subroutine of step S803 of FIG. 8 illustrated in the flow chart of FIG. 9 ends.

If the determination in step S903 is NO, the CPU 601 further determines whether the absolute value of the register c is smaller than the second pitch bend threshold BEND_THRESH2, which is larger than the first pitch bend threshold BEND_THRESH1 and stored in the ROM 603. (step S904).

If the determination in step S904 is YES, the operation of the pitch bender wheel unit 101a by the performer is automatically designated by the two LED2 and LED3 of the pitch bender wheel unit 101a shown in FIG. navigating a slight deviation from the pitch bend target value.

Specifically, the CPU 601 determines whether or not the value of the register c is greater than 0, that is, whether or not the pitch bend target value designated by the automatic performance is greater than the player's operation value of the pitch bender wheel unit 101a. (step S905).

If the determination in step S905 is YES, the CPU 601 first lights up the front LED 3 of the pitch bender wheel unit 101a shown in FIG. After that, the LED 2 on the far side is immediately turned on, and then both LEDs are once turned off, and after about one second, the LED 3 is turned on again, and then the LED 2 is turned on again (step S906). . This control is realized as an operation in which the CPU 601 performs predetermined timing control and sequentially controls the light emission of the LEDs 3 and 2, which are the LEDs 401 (see FIG. 4), from the D/A converter 612 of FIG. be.

If the determination in step S905 is NO, the CPU 601 first turns on the rear LED2 of the pitch bender wheel unit 101a shown in FIG. Immediately after turning on LED3, the front LED3 is turned on, and then both LEDs are once turned off. After about one second, the LED2 is turned on again, and then the LED3 is turned on immediately. ). As in the case of step S906, this control is performed by the CPU 601, while performing predetermined timing control, from the D/A converter 612 in FIG. It is realized as an operation of sequentially controlling light emission.

The above LED light emission control in step S906 or S907 is maintained until step S703 in FIG. 7 is repeatedly executed and the pitch bend target value designated by the player's operating state of the pitch bender wheel unit 101a or automatic performance changes. . After the processing of step S906 or 907, CPU 601 terminates the pitch bender wheel LED control subroutine of step S803 of FIG. 8 illustrated in the flowchart of FIG.

On the other hand, if the determination in step S904 is NO, the four LED1, LED2, LED3, and LED4 of the pitch bender wheel unit 101a shown in FIG. Navigate operations that deviate significantly from the pitch bend target specified by autoplay.

Specifically, the CPU 601 determines whether or not the value of the register c is greater than 0, that is, whether or not the pitch bend target value designated by the automatic performance is greater than the player's operation value of the pitch bender wheel unit 101a. (step S908).

If the determination in step S908 is YES, the CPU 601 causes the pitch bender wheel unit 101a shown in FIG. The LED2 and LED1 are sequentially turned on, and then all the LEDs are once turned off, and after about one second, the LED4, LED3, LED2, and LED1 are turned on in this order again (step S909). This control is performed by the CPU 601, while performing predetermined timing control, through the lead wire 402 from the D/A converter 612 in FIG. It is realized as an operation to

If the determination in step S906 is NO, the CPU 601 causes the pitch bender wheel unit 101a shown in FIG. The LED2, LED3, and LED4 are sequentially turned on, and then all the LEDs are once turned off, and after about one second, the LED1, LED2, LED3, and LED4 are turned on in this order again (step S910). As in the case of step S909, this control is performed by the CPU 601, while performing predetermined timing control, through the lead wires 402 from the D/A converter 612 in FIG. It is realized as an operation of sequentially controlling light emission.

The above LED light emission control in step S909 or S910 is maintained until step S703 in FIG. 7 is repeatedly executed and the pitch bend target value designated by the player's operation state of the pitch bender wheel unit 101a or automatic performance changes. . After the processing of step S909 or 910, CPU 601 terminates the pitch bender wheel LED control subroutine of step S803 of FIG. 8 illustrated in the flowchart of FIG.

FIG. 10 is a flow chart showing a detailed example of the pitch bender wheel LED control subroutine of step S808 of FIG. In this subroutine, as described above, the CPU 601 executes pitch bend navigation by light emission control of the four LEDs 401 of the modulation wheel unit 101b. As shown in the explanatory diagram of the present embodiment shown in FIG. 10, in the following description, the four fan-shaped light guide regions (103 (#1 in FIG. 4B)) of the light guide member 103a of the modulation wheel unit 101b ), 103(#2), 103(#3) and 103(#4)) are called LED5, LED6, LED7 and LED8.

First, the CPU 601 reads the latest value of automatic performance pitch bend stored in the variable AUTO_MOD in the RAM 602 into the register b (step S1101).

Next, the CPU 601 subtracts the operation value of the modulation wheel unit 101b obtained in the register a in step S807 of FIG. 8 from the value of the register b, and stores the subtraction result in the register c (step S1102). .

The CPU 601 determines whether or not the absolute value of the register c is smaller than the first modulation threshold MOD_THRESH1 stored in the ROM 603 (step S1103).

If the determination in step S1103 is YES, the CPU 601 determines that the player is operating the modulation wheel unit 101b close to the modulation target value specified by automatic performance, and does not perform LED light emission control. The modulation wheel LED control subroutine of step S808 of FIG. 8 illustrated in the flowchart of FIG. 11 is terminated.

If the determination in step S1103 is NO, the CPU 601 further determines whether the absolute value of the register c is smaller than the second modulation threshold MOD_THRESH2, which is larger than the first modulation threshold MOD_THRESH1 and stored in the ROM 603. (step S1104).

If the determination in step S1104 is YES, the processing in steps S1105 to S1107 is performed to automatically perform the operation of the modulation wheel unit 101bd by the performer through the two LEDs 6 and 7 of the modulation wheel unit 101b shown in FIG. Navigate slightly off target.

Specifically, the CPU 601 determines whether or not the value of the register c is greater than 0, that is, whether or not the target modulation value designated by the automatic performance is greater than the player's operation value of the modulation wheel unit 101b. is determined (step S1105).

If the determination in step S1105 is YES, the CPU 601 first turns on the front LED 7 of the modulation wheel unit 101b shown in FIG. The LED 6 on the far side is immediately turned on, and then both LEDs are once turned off, and after about one second, the LED 7 is turned on again and the LED 6 is turned on again (step S1106). This control is realized as an operation in which the CPU 601 performs predetermined timing control while sequentially controlling the light emission of the LEDs 7 and 6, which are the LEDs 401 (see FIG. 4), from the D/A converter 612 in FIG. be.

If the determination in step S1105 is NO, the CPU 601 first lights the LED 6 on the far side of the modulation wheel unit 101b shown in FIG. Then, the front LED 7 is immediately turned on, both LEDs are once turned off, and after about one second, the LED 6 is turned on again, and then the LED 7 is turned on again (step S1107). As in the case of step S1106, this control is performed by the CPU 601, while performing predetermined timing control, from the D/A converter 612 in FIG. It is realized as an operation of sequentially controlling light emission.

The above LED light emission control in step S1106 or S1107 is maintained until step S703 in FIG. 7 is repeatedly executed and the pitch bend target value specified by the player's operation state of the modulation wheel unit 101b or automatic performance changes. After the processing of step S1106 or 907, CPU 601 terminates the pitch bender wheel LED control subroutine of step S808 of FIG. 8 illustrated in the flowchart of FIG.

On the other hand, if the determination in step S1104 is NO, the player's operation of the modulation wheel unit 101b is automatically designated by the four LED5, LED6, LED7, and LED8 of the modulation wheel unit 101b through the processing of steps S1108 to S1110. navigating significant deviations from the desired modulation target.

Specifically, the CPU 601 determines whether or not the value of the register c is greater than 0, that is, whether or not the pitch bend target value designated by the automatic performance is greater than the player's operation value of the modulation wheel unit 101b. is determined (step S1108).

If the determination in step S1108 is YES, the CPU 601 causes the player to operate the modulation wheel unit 101b more, as a display prompting the player to operate the modulation wheel unit 101b more. The LED 5 is turned on in order, and then all the LEDs are once turned off. After about one second, the LED 8, LED 7, LED 6, and LED 5 are turned on in order again (step S1109). This control is performed by the CPU 601, while performing predetermined timing control, through the lead wire 402 from the D/A converter 612 in FIG. It is realized as an operation to

If the determination in step S1106 is NO, the CPU 601 displays LEDs 5 to 6 on the far side of the modulation wheel unit 101b shown in FIG. The LEDs are sequentially turned on in the order of LED7 and LED8, then all the LEDs are once turned off, and after about one second, the LEDs are turned on again in the order of LED5, LED6, LED7 and LED8 (step S1110). As in the case of step S1109, this control is performed by the CPU 601, while performing predetermined timing control, through the lead wire 402 from the D/A converter 612 in FIG. It is realized as an operation of sequentially controlling light emission.

The above LED light emission control in step S1109 or S1110 is maintained until step S703 in FIG. 7 is repeatedly executed and the modulation target value designated by the player's operation state of the modulation wheel unit 101b or automatic performance changes. After the processing of step S1109 or S1110, the CPU 601 terminates the modulation wheel LED control subroutine of step S808 of FIG. 8 illustrated in the flowchart of FIG.

As described above, in this embodiment, the operation values when the player is operating the pitch bender wheel unit 101a and the modulation wheel unit 101b are compared with the pitch bend and modulation target values specified by automatic performance. By doing so, it is possible to perform various forms of LED light emission control that reflect the comparison result for each of the four LEDs 401 of the pitch bender wheel unit 101a or the modulation wheel unit 101b. , each fan-shaped light guide area of the light guide member 103a or 103b is vividly illuminated, and navigation can be performed while appealing to the player's visual sense.

In the above description, the operation value of the pitch bender wheel unit 101a or the modulation wheel unit 101b is compared with the target value specified by automatic performance to control the light emission of the LED. It is also possible to specify the modulation target value while automatically determining the length of .

In addition to simple navigation, during automatic performance, the LEDs 401 of the pitch bender wheel unit 101a or the modulation wheel unit 101b are randomly controlled to illuminate the fan-shaped light guide regions of the light guide members 103a and h103b. By doing so, it is possible to produce a flashy performance effect. Furthermore, when the player randomly operates the pitch bender wheel unit 101a or the modulation wheel unit 101b, another form of flashy automatic performance is performed, or an effect like disc jockey's disc operation is added. , it is possible to add various performance effects.

Furthermore, since pitch bend and vibrato should not be applied to a specific musical instrument tone color, for example, an acoustic piano tone color, if the performer is operating the pitch bender wheel unit 101a or the modulation wheel unit 101b, such operation LED control may be performed to prompt to return to zero.

In addition, it is possible to freely design whether the LED 401 of the pitch bender wheel unit 101a or the modulation wheel unit 101b is used to control such performance effect addition.

The following notes are further disclosed with respect to the above embodiments.
(Appendix 1)
a wheel including a plurality of light source units that emit light, and a light guide member having a plurality of light guide regions that guide the light emitted from the plurality of light source units;
an effect adding device comprising: a control section that controls light emission from the plurality of light source sections.
(Appendix 2)
The effect adding device according to appendix 1, wherein a light shielding material is enclosed in the boundary of each of the light guide regions.
(Appendix 3)
3. The effect adding device according to appendix 1 or 2, wherein the light guide regions are formed to emit light of different colors.
(Appendix 4)
3. The effect adding device according to appendix 3, wherein each of the light guide regions is formed of members of different colors.
(Appendix 5)
3. The effect adding device according to appendix 3, wherein the surface of each light guide region is colored with a different color.
(Appendix 6)
6. The effect adding device according to any one of appendices 1 to 5, wherein each of the light guide regions is formed of an acrylic member.
(Appendix 7)
7. The effect adding device according to any one of appendices 1 to 6, wherein the control section controls light emission of each of the light source sections based on a signal indicating a rotation angle of the wheel.
(Appendix 8)
The effect according to appendix 7, wherein the performance effect is navigated by controlling light emission of each of the light sources based on automatic performance information for automatically playing an electronic or electric musical instrument and the signal indicating the rotation angle. Add-on equipment.
(Appendix 9)
An electronic musical instrument equipped with the effect adding device according to any one of Appendices 1 to 8.

100 effect adding device 101 wheel unit 101a pitch bender wheel unit 101b modulation wheel unit 110 case 102 wheel 102a pitch bender wheel 102b modulation wheel 103a, 103b light guide plate 104a, 104b L-shaped metal fitting 301 rotary encoder 302 fastener 303 mounting portion 304, 305 screw 306 movable shaft 307 wheel hole 308 metal fitting hole 401 LED
402 Lead Wire 500 Electronic Keyboard Instrument 501 Keyboard 502 Various Switches 503 Pitch Bender Wheel 504 Pitch Modulation Wheel 505 LCD
601 CPUs
602 ROMs
603 RAM
604a Timer 1
604b timer 2
605 sound source LSI
606 waveform memory 607 key scanner 608 A/D converter 609 LCD controller 610 D/A converter 611 amplifier 612 system bus

Claims (4)

A circular operation element including a plurality of light source units and a light guide member having a plurality of light guide regions for guiding light emitted from the plurality of light source units,
The plurality of light source units are arranged in cutout portions of the light guide member positioned coaxially with the wheel hole of the manipulator so as to individually illuminate the plurality of light guide regions. operator. 2. The operator according to claim 1, wherein each of said plurality of light guide regions is formed in a fan shape, and a light shielding member is arranged at a boundary between said plurality of light guide regions. 3. The operator according to claim 1, wherein each light guide member is formed of an acrylic member on one side of the operator. 4. An electronic musical instrument equipped with the operator according to any one of claims 1 to 3.

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