JPH0486790A - Electronic stringed instrument - Google Patents

Abstract

PURPOSE:To facilitate the instantaneous and sure adjustment of timbres, sound volume, etc., by controlling the above musical instrument in such a manner as to add the effect of the prescribed kind assigned by read out effect assignment information to the musical tone signal outputted in response to a pickup signal. CONSTITUTION:A foot controller 13 is connected to the input terminal of an electric guitar 11 mounted with two kinds of pickups 12a and 12b and a guitar amplifier 14 is connected to the output terminal. The foot controller 13 is so controlled that the combination of a specific one set of the pickup assignment information and effect assignment information is read out of a memory means and that the effect of the prescribed effect assigned by the read out effect assignment information is added to the musical tone signal outputted in response to the pickup signal from the pickup of the prescribed kind assigned by the read out pickup assignment information. The timbres, sound volume, etc., are instantaneously adjusted in this way.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic stringed musical instrument, and in detail:
This invention relates to an electronic stringed instrument that allows settings such as the timbre of a musical tone to be instantaneously and reliably performed while a piece of music is being played.

[Conventional technology]

-i. When playing a piece of music using an electronic stringed instrument that does not have its own sound-producing device, such as an electric guitar, the performer must perform string pinking (playing the strings) outside of the electronic stringed instrument. ), it is necessary to add various effects (musical sound effects) to the musical sound signal output from the electronic stringed instrument, and further amplify the musical sound signal to which the effects have been added to a predetermined level before emitting sound.

FIG. 8 is a diagram showing the system required to operate a conventional electric guitar.

As shown in the figure, the conventional system includes an effector system 2 that adds various effects to the musical sound signal output from an electric guitar 1;
The system 2 includes a foot controller 3 which specifies the type of effect to be added to the musical sound signal by the performer's foot operation, and a foot controller 3 which controls the musical sound signal to which various effects have been added by the effector system 2 to a predetermined level. A guitar amplifier 4 (including a speaker (not shown)) is required to emit sound after amplification. In particular, the effect system 2 adds chorus, delay, and distortion to the musical sound signal output from the electric guitar 1.
It is configured so that a plurality of types of effects such as chromium, reverb, etc. can be selectively combined and added, and a plurality of setting states of the combined effects can be stored. A plurality of stored effect setting states can be automatically switched by the player's foot operation on the foot controller 3.

Note that the musical sound signal output from the electric link guitar 1 is transmitted to the front pickup 5a and the rear pickup 5b, which convert the vibration frequency of strings (not shown) vibrated by the player's picking (playing the strings) into electrical signals.
These are obtained by electric
They can be used simultaneously or selectively by switching a pickup switch (not shown) on the panel of the guitar 1.

[Problems to be Solved by the Invention] By the way, when the front pickup 5a and rear pickup 5b mounted on the electric guitar 1 are selectively used, they generally adjust the vibration frequency of the string according to its tonal range. Therefore, it is necessary to use the effect added to the musical sound signal properly in order to maximize the characteristics of the effect and obtain a musical sound with a timbre that matches the player's taste.

FIG. 9 is a diagram showing the relationship between effects added to musical tone signals and pink amplifiers to be used.

As shown in the figure, first, the effector system 2 has four types of effects to be added to the musical sound signal: chorus, delay, distortion, and reverb. If not added, write it as OFF), but the specified combination is set to 1.
．． 2.3 and 4 are stored in advance.

Then select the pickup that should be used (ON when using the corresponding pickup, OFF when not using it).
(described in ) are also set in advance, and depending on the player's preference, the front pink amplifier 5a is selected for setting states 1 and 2, and the rear pickup 5b is selected for setting states 3 and 4. shall be carried out. Further, the volume value (not shown) on the panel surface of the electric guitar 1 for adjusting the volume of the musical sound emitted from the guitar amplifier 4 is set in the setting state 1.2.
"5", "4", "8" corresponding to 3 and 4 respectively
and "10".

Here, a case will be considered in which a performer switches the combination of effects stored in the effector system 2 from, for example, setting state 2 to setting state 3 while playing a piece of music.

In this case, the combination of effects is determined by the performer using the foot
Although the switching is performed automatically simply by operating the foot of the controller 3, the player must manually select the pickup and adjust the volume. In other words, the performer operates the pickup switch at the same time as switching the effect setting state to the front pickup.
It is necessary to instantly switch the pickup 5a from ON to OFF and the rear pickup 5b from OFF to ON, as well as operate the volume and change its value from r4J to "8". However, it is extremely difficult for a performer to perform these various switching operations instantaneously and at an appropriate timing during a performance, which hinders the performance of the music. Furthermore, while a piece of music is being played, the performer cannot judge point by point whether the various switching operations have been performed reliably, but the performer can only listen to the timbre, volume, etc. of the musical sound after the change. (It was inconvenient.)

An object of the present invention is to provide an electronic stringed instrument that can instantly and reliably select a pickup, effector, etc. and adjust the tone, volume, etc. during the performance of a song, and furthermore, can easily check the selection and adjustment. It is.

[Means for Solving the Problems] First, the means of the first invention described in claim 1 are as shown below.

The multiple types of pickups detect the vibrations of strings strung on the main body of the musical instrument, and include, for example, a front pink amplifier, a rear pickup, and the like.

The effect adding means adds multiple types of effects to musical tone signals to be generated in response to pickup signals output from multiple types of pickups, and includes, for example, a chorus effect adding section and a delay effect adding section. , a distortion effect adding section, a reverb effect adding section, etc.

The storage means stores pickup specification information for specifying at least one pickup to be used during performance from among the plurality of types of pickups, and at least one pickup to be added to the musical sound signal during performance from among the plurality of types of effects added by the effect adding means. Effect specification information that specifies one effect is stored in multiple combinations, for example, in RAM (random access memory).
memory), etc.

The specifying means specifies a specific set of combinations of pickup specifying information and effect specifying information stored in the storage means, and includes, for example, a foot controller.

During performance, the control means reads out a specific set of combinations of pickup designation information and effect designation information from the storage means based on the designation by the designation means, and selects a predetermined type of pickup designated by the read pickup designation information. A predetermined type of effect designated by the read effect designation information is controlled to be added to the musical tone signal output in response to the pickup signal.

Next, the means of the second invention recited in claim 2 is as shown below.

The plurality of types of pickups detect the vibrations of the strings stretched over the main body of the musical instrument, and are comprised of a front pickup, a rear pickup, etc., as in the first invention.

The external controls are used to set the characteristics of musical tone signals to be generated in response to pickup signals output from a plurality of types of pink amplifiers, and include, for example, tone volume and volume volume.

The effect adding means adds a plurality of types of effects to a musical tone signal to be generated in response to pickup signals output from a plurality of types of pickups, and similarly to the first invention, the effect adding means adds a chorus effect. additional part,
It consists of a delay effect adding section, a distortion effect adding section, a reverb effect adding section, etc.

The storage means includes pickup specification information that specifies at least one pickup to be used during performance from among multiple types of pickups, preset information that specifies characteristic values of musical tone signals to be set by external operators, and effect addition. At least one effect added to the musical sound signal during performance from among multiple types of effects added in the means.
This device stores a plurality of combinations of effect designation information that designates individual effects, and is composed of a RAM or the like similarly to the first invention.

The designation means designates a specific set of combinations of pickup designation information, preset information, and effect designation information stored in the storage device in a plurality of ways, and is similar to the first invention. , foot
Consists of controller etc.

During performance, the control means reads out a specific set of combinations of pickup designation information, preset information, and effect designation information from the storage device based on the designation by the designation device, and selects a predetermined type designated by the read pickup designation information. controls to add a predetermined type of effect specified by read effect specification information to a musical tone signal outputted with a predetermined characteristic value specified by preset information in response to a pickup signal from the pickup of the pickup. It is.

In addition, the third invention according to claim 3 is characterized in that the first or second
The effect adding means in the invention comprises continuous control means that continuously controls the depth of a plurality of types of effects. This continuous control means is comprised of, for example, a OneChimp digital signal processing device or the like.

Furthermore, a fourth invention according to claim 5 provides that the first and second
Alternatively, in addition to the means of the third invention, the apparatus further includes display means for displaying various information designated by the designation means. This display means is, for example, an LED (light emitting diode) or an LCD.
(liquid crystal display device) and other display elements.

[Function] First, according to the first invention, the storage means stores pickup designation information that designates at least one pickup to be used during a performance from among a plurality of types of pickups, and the pickup designation information is added by the effect addition means. A plurality of combinations of effect specification information specifying at least one effect to be added to a musical sound signal during performance are stored in a plurality of combinations among a plurality of types of effects. Then, the specifying means specifies a specific set of combinations of pickup specifying information and effect specifying information stored in the storage means in a plurality of ways, and the control means specifies the specified combination by the specifying means at the time of performance. A combination of a specific set of pickup designation information and effect designation information is read from the storage means based on the above, and is output in response to a pickup signal from a predetermined type of pickup designated by the read pickup designation information. Control is performed so that a predetermined type of effect designated by the read effect designation information is added to the musical tone signal.

Next, according to the second invention, the storage means stores pickup designation information that designates at least one pickup to be used during a performance from among a plurality of types of pickups, and a musical tone signal to be set by an external operator. A plurality of combinations of preset information that specifies characteristic values of the preset information and effect specification information that specifies at least one effect to be added to the musical sound signal during performance from among the plurality of types of effects added by the effect adding means are stored in a plurality of ways. be done. Then, the specifying means specifies a specific set of combinations of pickup specifying information, preset information, and effect specifying information stored in the storage means in a plurality of ways, and the control means specifies,
At the time of performance, a specific set of combinations of pickup designation information, preset information, and effect designation information is read out from the storage device based on the designation by the designation device, and a predetermined type designated by the read pickup designation information is read out from the storage device based on the designation by the designation device. A predetermined type of effect specified by the read effect specification information is added to a musical tone signal outputted with a predetermined characteristic value specified by the preset information in response to a pickup signal from the pickup. controlled.

Further, according to the third invention, the addition of a plurality of types of effects is continuously controlled by the continuous control means comprising a digital signal processing device or the like.

Furthermore, according to the fourth invention, the display means displays various information designated by the designation means.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. Note that this embodiment is an example in which the electronic stringed instrument of the present invention is applied to an electric guitar.

Figure 1 shows an example of a system for performing with an electric link guitar.

As shown in the figure, the electric guitar 11 of this embodiment extracts the mechanical vibrations of the strings (not shown) strung on the body and generates electrical musical tone signals from the low range to the middle range. Front pickup 12 outputs
Two types of pickups are mounted at different positions on the body: a and a rear pickup 12b that also extracts the mechanical vibrations of the strings and outputs an electrical musical tone signal from the midrange to the high range. ing. That is, the front pickup 12a and the rear pickup 1
2b extracts the mechanical vibrations of the strings individually for each tone range, and by selectively using these, it is possible to obtain a musical tone signal having a desired tone depending on the occasion. Note that the pickups are not limited to the two types mentioned above, and if selective use is possible, for example, a middle pickup for extracting midrange frequencies may be placed between the front pickup 12a and the rear pickup 12b. It may be further installed in the .

In this way, the electric guitar 11 equipped with two types of pickups 12a and 12b has the foot controller 13 connected to its input terminal, and the guitar amplifier 14 connected to its output terminal. Of these, the foot controller 13 outputs external control signals in response to the player's foot operations to control various setting states (details will be described later), and the guitar amplifier 14
The musical tone signal outputted from the electric guitar 11 is amplified to a predetermined level and then emitted to the outside. Note that the effector system 2 used in the system necessary for operating the conventional electric guitar 1 (see FIG. 8) has a corresponding circuit inside the electric guitar 11 of this embodiment. Since it is provided, it is not required in the system of this embodiment. The internal circuit of the electric guitar 11 will be explained below.

FIG. 2 is a circuit block diagram showing the internal circuit of the electric guitar 11. As shown in FIG.

As shown in the figure, the internal circuit of the electric guitar 11 of this embodiment has a C.
A PU (Central Processing Unit) 15, a ROM (Read Only Memory) 16 storing programs executed by the CPU 15, and a RAM (Random Access Memory) 17 storing various setting states to be described later. It is structured around the center. Then, the CPU 15 controls so that various effects are added to the musical tone signals output from the front pickup 12a and the rear pickup 12b based on signals from each input section described below.

The input section is provided with a tone volume 18a for adjusting the tone of the musical tone signal, and a volume volume 18b for adjusting the volume of the musical tone signal.

These tone volume L18a and volume volume 18b
consists of, for example, a sliding or rotary variable resistor, terminals at both ends of each of the volumes 18a and 18b are connected to the reference potential VD and the ground potential, respectively, and the divided potential of the movable contact pressure value) is individually converted to an A/D converter (analog/digital converter).
19.

Then, the tone volume 18a and the volume volume 18
The divided potential b is input to the CPU 15 after being A/D converted by the A/D converter 19.

Of the two input A/D conversion values, the CPU 15 selects
The divided voltage potential corresponding to the tone volume 18a is output to a D/A converter (digital/analog converter) 20a,
Moreover, the partial voltage potential corresponding to the volume volume 18b is D/
Output to A converter 20b. The divided voltage potential after A/D conversion input to the D/A converter 20a is D/A.
The signal is A-converted and input to a VCF (tone adjustment circuit) 21. In addition, the A/D input to the D/A converter 20b
The converted divided voltage potential is D/A converted and input to a VCA (volume adjustment circuit) 22.

Note that the VCF 21 converts specific frequency components (for example, harmonic components) of the musical tone signal into the level of the divided voltage potential (tone volume 18
The CA22 adjusts the tone by amplifying the amplitude level of the musical tone signal according to the level of the divided potential (the level of the volume volume 18b). This is for adjusting the volume.

On the other hand, in addition to the tone volume volume 18a and volume volume volume 18b described above, the front pickup 12a and rear pickup 12b shown in FIG. 1 also operate as input sections for musical tone signals.

Of these, the output of the front pickup 12a is input to the mix amplifier 23 via the electronic switch ESWI, and the output of the rear pickup 12a is input to the mix amplifier 23 via the electronic switch ESWI.
The output of 2b is mixed via electronic switch ESW2.
The signal is input to an amplifier 23. Note that the electronic switches ESW1 and ESW2 are opened and closed under the control of the CPU 15 (the same applies to the electronic switches ESW3 to ESWIO, which will be described later).
When a high level control signal (NJ) is input from the PU15, it becomes ON, and a low level control signal (“0”) is input.
) is input, it turns OFF.

The musical sound signal input to the mix amplifier 23 in response to the opening and closing of the electronic switches ESWI and ESW2 is amplified to a predetermined amplitude level, and then the musical tone signal is amplified to a predetermined amplitude level.
A chorus effect adding section 24, a delay effect adding section 25, and a delay effect are connected in cascade via the W8 and ESW8.
John effect adding section 26 or reverb effect adding section 27
It is now entered into Each of these effect adding units 24, 25, 26 and 27 is operated by the electronic switches ESW3 to ESWIO, which are opened and closed under the control of the CPU 15.
Depending on the N or OFF state, chorus, delay, distortion, and reverb effects are added to the musical sound signal passing through it.

Here, the electronic switch ESW3 under the control of the CPU 15
~Chorus effect addition section 24 regarding opening and closing of ESWIO
An example of the electronic switches ESW3 and ESW4 involved in the operation will be described below. That is, the on/off states of the electronic switch ESW3 and the electronic switch ESW4 are reversed by the action of the inverter INVI connected to the electronic switch ESW3. Specifically, the high level or low level control jB signal output from the CPU 15 is connected to the inverter INVI.
At the same time, it is input to the electronic switch ESW3 via
It is designed to be input directly to the electronic switch ESW4, and thereby the electronic switch ESW3 and the electronic switch E
The on/off state is always opposite to that of SW4.

- For example, when a high level control signal is output from CPt, i15, electronic switch ESW3 turns OFF.
At the same time as the FF becomes FF, the electronic switch ESW4 is turned ON and a chorus is added to the musical tone signal.

Hereinafter, the electronic switches ESW5 and ESW6 involved in the operation of the delay effect adding section 25 are operated by the action of the inverter INV2, and the electronic switches ESW7 and ESW8 involved in the operation of the distortion effect adding section 26 are operated by the action of the inverter INV3. Further, electronic switches ESW9 and E that are involved in the operation of the reverb effect adding section 27 are provided.
The on/off states of SWIO are reversed by the action of the inverter INV3. As a result, delay, distortion, and reverb effects can be added to the musical tone signal under the control of the CPU 15.

The musical tone signal that has passed through any one of the chorus effect adding section 24, delay effect adding section 25, distortion effect adding section 26, or reverb effect adding section 27 is input to the VCF 21, and after the tone is adjusted, it is input to the VCA 22. The volume power ζ is adjusted accordingly. The musical tone signal whose tone color and volume have been adjusted is output to the 0UTPUT (output terminal) 28, and is sent to the guitar amplifier 1 shown in FIG. 1 via the signal line.
4 is entered. Further, the external control signal output from the foot controller 13 shown in FIG. 1 in response to the player's foot operation is inputted to the external control signal input circuit 29 as an external control signal of the external controller. There is. Then, the external control signal input circuit 29 controls the CPU 1 based on the input external control signal.
5, a specific type of pickup (12a or 12b) to be used when extracting a musical tone signal and a specific type of effect adding section (24, 25, 26 or 27) instructs switching of a setting state that defines a plurality of combinations.

Here, the setting state that defines a plurality of combinations of the pickup and the effect adding section to be used is written and stored in the RAM 17 by the CPU 15, and is also stored in the RAM 17 by the CPU 15.
In response to the foot operation of the controller 13, the CPU 15
It is read out by . Also, CPU1
The instruction to write the setting state to the RAM 17 by No. 5 is as follows:
This is done by operating the switch group 30. Furthermore, the writing and reading states of the setting state are displayed on the display section 31 at any time under the control of the CPU 15.

The details of the switch group 3o, display section 31, etc. will be explained below.

FIG. 3 is a diagram showing the appearance of the switch group 3°, the display section 31, etc. shown in FIG. 2.

In this example, the switch group 3o and the display section 31 are arranged on the body of the electric link guitar 11. Below, the parts corresponding to the switch group 3o and the parts corresponding to the display section 31 will be explained in order.

First, the parts corresponding to the switch group 30 are the setting switch 32, switch PUI, switch PU
2. Switch CHO, switch DLY5 switch DIS
and a switch REV. Further, a volume OL1 and a volume VOL2 for operating the sliding tone volume 18a and volume volume 18b shown in FIG. 2 are also provided here.

Of these, the setting switch 32 is composed of a 4-contact type slide switch, and is configured to select a predetermined setting state among four types (corresponding to numbers "1" to "4" in the figure). This is a switch for switching when writing/sequential output to the RAM 17. If it is desired to switch between more than four types of setting states, a setting switch 32 having a corresponding number of contacts may be used.

Further, the switches PUI and PU2 are bush switches, and depending on the pressing operation of the switches PUI and PU2, the front pickup 12a and the rear pickup 12a, respectively, are
Pickup 12b is selected.

Furthermore, the switches CHO1DLY, DIS, and REV are also push switches, and in response to the pressing operation of these switches, the chorus effect adding section 24 is activated by the switches C and HO, and the delay effect adding section 25 is activated by the switch DLY. The distortion effect adding section 26 is selected by DIS, and the reverb effect adding section 27 is selected by switch REV.

Furthermore, volumes ○L1 and VOL2 are sliding volumes, and volume OL1 is VCF2.
Volume ■○L2 for tone adjustment in 1 is VCF
This is a switch for adjusting the sound M in 21.

On the other hand, the parts corresponding to the display section 31 include setting indicators LSI, LS2, LS3 and LS4, pickup indicators LPI and LP2, and effector indicator LE.
I, LE2, LE3 and LE4 and volume indicator L
V and LT are provided.

Among these, setting display LSI, LS2, LS3
and LS4 is an LED (light emitting diode) or LCD
It is composed of display elements such as (liquid crystal display device), and is designed to display the setting status (corresponding to the numbers "1" to "4" in the figure) switched by the setting switch 32. . Further, the pickup indicators LPI and LP2 are also composed of display elements such as LEDs and LCDs, and display the selected pickup in response to the pressing operation of the switches PUI and PU2. Furthermore, the effector indicators LEI, LE2, LE3 and LE4 are also LED
It consists of display elements such as LCD and switch C.
The effect addition section selected in response to the pressing operations of HO1DLY, Dis, and REV is displayed.

Furthermore, the volume indicators LV and LT consist of a display body in which three 7-segment LEDs, LCDs, etc. are arranged in parallel, and the musical tone signals in the VCF 21 and CA 22 are set according to the operation of the volumes VOL 1 and VOL 2. The degree of adjustment of the tone and volume is displayed as a three-digit numerical value from '0OOJ (MIN, minimum value) to '7255' (MAX, maximum value).

Although not particularly shown, the switch group 30 is further provided with a mode switch and a WRITE switch. Among these, the mode switch is RAM1
SET mode is a mode for writing a predetermined setting state to the RAM 17, and PLAY mode is a mode for reading a predetermined setting state from the RAM 17. It is something. Further, the WRITE switch is used to instruct writing of a predetermined setting state to the RAM 17 when the mode is the SET mode.

Next, the operation of the electric guitar 11 having the above configuration will be explained.

FIG. 4 is a flow chart for explaining the operation of the electric link guitar 11 according to an embodiment of the present invention.

In the electric link guitar 11 of this embodiment, the player operates the mode switch in the switch group 30 to change the mode of the electric guitar 11 to SET mode or PL.
The operation is started by setting it to either AY mode.

That is, when the player operates the mode switch to set the mode of the electric guitar 11, the CPU 1
5 determines whether the currently set mode is the SET mode or the PLAY mode (533), and if the mode is the SET mode, performs processing to write a predetermined setting state to the RAM 17; When in the PLAY mode, processing for reading a predetermined setting state from the RAM 17 is performed.

Below is the process and PLA when the mode is SET mode.
The processing in the Y mode will be explained in order.

First, in the above process S33, the current mode is set to SET.
If it is determined that the CPU 15 is in the mode, the CPU 15 selects the switches PU1, PU2, CHO,
Based on the current settings of DLY, DIS and REV and volumes VOLI and VOL2, electronic switch E
A pickup indicator LPI in the display section 31 while controlling SWI, ESW2, ESW4, ESW6, ESW8 and ESWlo, VCF21 and VCA22
and LP2, effector indicators LEI, LE2, LE3
and controls the display of LE4 and the volume indicators LV and LT (S34). That is, CPtJ15 determines whether switches PUI and PtJ2 are ON or OFF.
The electronic switch ES
Each of WI and ESW2 is set to ON or OFF, and each of pickup indicators LPI and LP2 is set to display or turn off. Similarly, the electronic switches ESW4, ESW6, ESW
8 and ESWIO, and display control of each of the effector displays LEI, LE2, LE3, and LE4.
VCF21 and VC according to each setting value of OL2
A22 control and volume display LV and LTO display control are performed.

Next, after controlling each electronic switch, each display, etc. in accordance with the operation of various switches and volume as described above, the CPU 15 subsequently controls the setting display LS.
Among I, LS2, LS3, and LS4, the one corresponding to the currently set setting number ("1" to "4") is lit (S35), and the predetermined setting corresponding to that setting number is turned on. After lighting the WRITE indicator, the CPU 15 controls the WRITE indicator operated by the performer.
Determine whether the switch is turned on (336
).

At this time, the WRITE switch of the CPU 15 is OFF.
If the state is the same, the process immediately returns to step S33;
When in the N state, switches PU1, PU2, CHO
Set the status (on/off status) of IDLY-DIS and REV and the setting values of volumes VOLI and VOL2 to the RA corresponding to the currently set setting number.
Write as data to address M17 (S37),
After performing this writing, the process returns to step S33.

The setting state writing process in step 337 is performed in a storage area provided in the RAM 17 corresponding to the setting number of the setting switch 32. Therefore, the performer can set up to four combinations (setting states) of the pickups to be used and the effects added to the musical tones.

On the other hand, in the above process S33, the current mode is PLA.
If it is determined that the mode is Y, the CPU 15
It is determined via the external control signal input circuit 29 whether or not an external control signal is input from an external controller such as the foot controller 13 (538), and if the input of the external control signal is not determined, the setting switch is 3
Further determine whether there is a change in the state of 2.539)
If the state of the setting switch 32 has not been changed, the process returns to step S33.

On the other hand, if it is determined in the process 33B that an external control signal is input, or if it is determined in the process S39 that the state of the setting switch 32 has been changed, the CPU 15 inputs the external control signal or the setting switch 32.・
The switch PUI, PU
2. Read out the status of CHOLDLY, Dis, and REV, and the data setting values of volume VOLI and
, ESW6, ESW8 and ESWlo on/off settings and setting control of VCF21 and VCA22 (S
41).

Furthermore, after performing the above settings, the setting display LS
Among I, LS2, LS3, and LS4, the one that corresponds to the currently set setting number lights up (34
2), Furthermore, the electronic switches ESWI, ESW2, ESW4, ESW6, ES set in the above process S41
Pickup indicators LPI and LP2, effector indicators LEI and LE correspond to the status of W8 and ESWIO and the setting values of VCF21 and VCA22.
2. Turn on LE3 and LE4 and the volume indicators LV and LT (S43), and after the lighting process, return to the process 333 again.

The data (setting state) reading process in step S40 is performed for each storage area provided in the RAM 17 corresponding to the setting number of the setting switch 32. Therefore, the above process 333
If it is determined that the mode is the PLAY mode, the processes from process S40 to process S42 are executed in accordance with the setting number in accordance with the determination in process S38 and process S39. Therefore, the performer can change the combination of the pink amplifier to be used and the effector to be added to the musical tone by setting in advance four types of combinations (setting states) of the pickup to be used and the effect to be added to the musical tone. Setting switch 3
This can be done instantly and reliably by operating only 2.

Next, a specific example of the operation related to the above-mentioned electric link guitar 11 will be explained.

Figure 5 shows various settings and electric guitar 11.
FIG.

As shown in the figure, in the SET mode (■ to ■),
When the performer operates the switch group 30, the switches PUI, PU2, CHO, DLY, DIS, and RE at that time
Status of V and volumes VOLI and VOL2
The electronic switches ESWI, E
SW2, ESW4, ESW6, ESW8 and ESWIO
Also, the states of the VCF 21 and VCA 22 are set to be equal to the set values (processing 5 in FIG. 4).
34). That is, the internal circuit of the electric guitar 11 changes its state at any time in response to the player's operation of the switch group 30 (limited to the above-mentioned switch and volume operations).

Here, in the state of SET mode ■, the performer selects "3" as the setting number by operating the setting switch 32, and then presses and operates the WRITE switch to turn it on (see Fig. 4). processing 536),
The switches PUI and Pt in SET mode ■ are stored in the storage area of RAM 17 corresponding to the setting number "3".
The statuses of J2, CHOLDLY, DIS, and REV and the setting states of volumes ■○L1 and ■○L2 are written (process 537 in FIG. 4).

On the other hand, in the PLAY mode (■ to ■), when the external control signal is input or the player operates the setting switch 32 and selects the setting number "3", the setting number "3" is selected. ” RAM corresponding to
From the 17 storage areas, switch PUI, PU2, CHO
, DLY, DIS, and REV statuses and the setting values of volumes L1 and VOL2 are read out (process 540 in FIG. 4), and based on the read statuses and setting values, electronic switches ESWI and ESW2 are read out. ,
ESW4, ESW6, ESW8 and ESWlo on/off
OFF state and control of VCF21 and CA22 are PL
This is carried out as shown in AY mode (processing 54 in Fig. 4).
1).

However, the electronic switch ESWI in PLAY mode
, ESW2, ESW4, ESW6, ESW8 and ESW
The states of IO, VCF 21 and VCA 22 are determined by switch P in switch group 30 when these are set.
It is set regardless of the physical states of tJ1, PU2, CHOLDLY, DIS, and REV, and the volumes VOL1 and VOL2 (the pressed state of each switch, the position of each volume, etc.). In the following, referring to the states of the switch group 30, the pickup indicators LPI and LP2,
The display states of the effector indicators LEI, LE2, LE3 and LE4 and the volume indicators LV and LT will be explained by giving an example.

FIG. 6 is a diagram showing the display state of each display in the PLAY mode (3) shown in FIG.

As shown in the figure, each indicator of the display unit 31 is connected to the electronic switches ESWI and ES in the PLAY mode (■) in FIG.
According to the status of W2, ESW4, ESW6, ESW8 and ESWIO and the set values of VCF21 and VCA22, the pickup indicator LPI and effector indicators LEI and LE3 light up, and the volume indicators LV and LT turn on r190J and r245, respectively.
” is displayed. Furthermore, the setting indicator LS2 also lights up in accordance with the setting number "2" in the PLAY mode (2).

At this time, for example, when considering the relationship between the respective numerical values of the volume indicators LV and LT and the respective positions of the volumes VOLI and VOL2, as described above,
The value on the volume indicator LV is r190. Despite this, the slide position of the volume VOLI is at its maximum value (
MAX), and the value on the volume display VT is r.
It is understood that although the volume is 245J, the position of the volume VOL2 is not near the maximum value.

In this way, the electric guitar 11 of this embodiment has settings that define the combination of a specific type of pickup to be used, an effect adding section, etc., regardless of the status of each switch in the switch group 30 and the slide position of the volume. Pinocqua whose state is instantaneously switched circuit-wise in response to an external control signal, etc., and which is currently selected in the internal circuit according to the display of each indicator on the display unit 31.

This ensures that taps and effects are visually recognizable.

Next, other embodiments of the present invention will be described.

This embodiment is a modification of a part of the internal circuit of the electric guitar 11 shown in FIG. 2 in the previous embodiment, and its operation is almost the same as that of the previous embodiment. Therefore, regarding this other embodiment, the description will focus on the configuration characteristic of this embodiment, and detailed explanation of its operation will be omitted.

FIG. 7 is a circuit block diagram showing the internal circuit of an electric guitar 11 according to another embodiment of the present invention.

As shown in the figure, the internal circuit of the electric link guitar 11 of this embodiment is mainly composed of a CPU 15, a ROM 16, and a RAM 17, as in the previous embodiment. Then, the CPU 15 further performs A/D conversion on the divided voltage potentials outputted from the tone volume volume 18a and the volume volume volume 18b in the A/D converter 19.
(digital signal processor) 44. Furthermore, this DSP44 has ROM4.
5 and RAM 46 are connected (details will be described later). In addition, the output (musical tone signal) of the front pickup 12a and rear pickup 12b is controlled by the electronic switch ESW.
It is input to the mix amplifier 23 via I and ESW 2 and amplified to a predetermined amplitude level, and the amplified musical tone signal is further input to the A/D converter 47
The musical tone signal after A/D conversion obtained as a result is D.
It is designed to be input to SP44.

Here, the DSP 44 is a digital signal processing device that adds various effects to the musical sound signal after A/D conversion through digital signal processing, and controls the effects to be added in more detail, such as the depth of the effect. It is now possible to do so. For this reason, the ROM 45 stores algorithm programs for the DSP 44 to execute processing for adding various effects such as chorus, delay, distortion, reverb, etc.
The work area required for calculation processing for adding effects is secured.

The digital musical tone signal to which effects have been added by the DSP 44 is converted into an analog musical tone signal by the D/A converter 48, and then output to 0UTPUT28, and is further transmitted to the guitar shown in FIG. 1 via a signal line (not shown). The signal is input to an amplifier 14. Further, the external control signal output from the foot controller 13 in FIG.
Writing of the setting state to is performed via the CPU 15 according to an instruction from the switch group 30, and the writing and reading state of the setting state is displayed on the display unit 31 at any time.

As described above, in the electric guitar 11 of this embodiment, by using the DSP 44, it is possible to omit each effect adding section and circuits such as the VCF 21 and VCA 22 in the previous embodiment, and for this reason, the electric guitar 11
The internal circuit of the device can be miniaturized and the implementation can be simplified. In addition, the algorithm stored in ROM45
You can add various types of effects to musical sound signals simply by changing the program, so if you use a cartridge-type ROM card as the ROM 45, you can add effects suitable for the song you are playing by simply replacing the ROM card. It is convenient and can be added freely.

The embodiments in which the present invention is applied to electric guitars have been described in detail above, but the present invention is not limited thereto. Of course, it is also applicable to other electronic stringed instruments such as violins.

(Effects of the Invention) As described above in detail, according to the present invention, a plurality of combinations of pickups, effects, etc. to be used are stored in advance, and the combinations can be stored by a simple switch operation during a performance. Since a predetermined combination to be used during a performance can be instantly selected from among a plurality of combinations, it is possible to instantly select a pickup, set effects, and adjust tone, volume, etc. during a performance. Further, by using the effect control 411DsP to be added to the musical tone signal, it is possible to downsize and simplify the internal circuit.

Furthermore, the pickup and currently set effects, tone, volume, etc. are displayed at any time, so you can easily check the pickup, currently added effects, and adjustment values for tone, volume, etc. is also possible.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a system for performing with an electric guitar, Fig. 2 is a circuit diagram showing the internal circuit of an electric guitar, and Fig. 3 is a diagram showing the switch group and switches shown in Fig. 2. Fig. 4 is a flow chart for explaining the operation of an electric guitar according to an embodiment of the present invention; Fig. 5 shows various setting states and the internal circuit of the electric guitar; FIG. 6 is a diagram showing the display state of each display in the PLAY mode ■ shown in FIG. 5. FIG. 7 is an internal circuit of an electric guitar which is another embodiment of the present invention. Figure 8 is a diagram showing the system required to operate a conventional electric guitar, and Figure 9 is a diagram showing the relationship between the effects added to the musical tone signal and the pickups to be used. be. 11...Electric guitar 12a...Front pickup, 12b...Rear pickup, 13 ・ ・ 15 ・ ・ 17 ・ ・ 18a ・ 18 b ・ 21 ・ ・ 22 ・ ・ 24 ・ ・ 25 ・ ・26 ・ ・ 27 ・ ・ 30 ・ ・ 31 ・ ・ 44 ・ ・

Claims (1)

[Claims] 1) A plurality of types of pickups for detecting vibrations of strings stretched over a musical instrument body, and a musical tone signal to be generated in response to pickup signals output from the plurality of types of pickups. effect adding means for adding a plurality of types of effects to the pickup; pickup designation information for specifying at least one pickup to be used during performance from among the plurality of types of pickups; and the plurality of types added by the effect adding means. a storage means for storing a plurality of combinations of effect designation information specifying at least one effect to be added to a musical tone signal during performance from among the effects of the above; and the pickup designation information stored in a plurality of combinations in the storage means; specifying means for specifying a specific set of combinations from among the combinations with the effect specifying information; and during performance, based on the specification by the specifying means, specifying a specific set of the pickup specifying information and the above from the storage means. Reads the combination with effect specification information,
Control is performed to add a predetermined type of effect specified by the read effect specification information to a musical tone signal output in response to a pickup signal from a predetermined type of pickup specified by the read pickup specification information. An electronic stringed instrument characterized by having: a control means for controlling; 2) Multiple types of pickups that detect the vibrations of the strings stretched over the instrument body, and external operations that set the characteristics of the musical tone signal to be generated in response to the pickup signals output from the multiple types of pickups. an effect adding means for adding a plurality of types of effects to a musical tone signal to be generated in response to the pickup signals output from the plurality of types of pickups; pickup designation information that designates at least one pickup to be used, preset information that designates a characteristic value of a musical tone signal to be set by the external operator, and one of the plurality of types of effects added by the effect addition means. a storage means for storing a plurality of combinations of effect specification information specifying at least one effect to be added to a musical sound signal during performance; and a plurality of combinations of the pickup specification information and the preset information stored in the storage means. a specifying means for specifying a specific set of combinations from among the combinations with the effect specifying information, and a specifying means for specifying a specific set of the pickup specifying information and the pickup specifying information from the storage means based on the specification by the specifying means during performance. A combination of preset information and the effect specification information is read out, and in response to a pickup signal from a predetermined type of pickup specified by the read pickup specification information, a predetermined characteristic value specified by the preset information is output. An electronic stringed instrument comprising: control means for controlling a musical tone signal to add a predetermined type of effect specified by the read effect specification information. 3) The electronic stringed instrument according to claim 1 or 2, wherein the effect adding means comprises continuous control means that continuously controls the depth of the plurality of types of effects. 4) The electronic stringed instrument according to claim 3, wherein the continuous control means is a one-chip digital signal processing device. 5) Claims 1 and 2 further comprising display means for displaying various information designated by the designation means.
, 3 or 4. The electronic stringed instrument according to .