JPS62187389A - Parameter setter for electronic musical apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to electronic musical instruments, and in particular, to a parameter setting device suitable for use in setting musical tone parameters. Various parameters need to be set for the generator. For example, if a vibrato effect is to be applied to a generated musical tone, a delay parameter, a speed parameter, and a depth parameter must be set in each of the musical tone generators. Here, the delay parameter is a parameter that determines whether to apply the vibrato effect from the time m5ec has elapsed after key (1) is turned on, and the speed parameter is a parameter that determines the period of the vibrato waveform. The parameter is a parameter that determines the amplitude of the vibrato waveform. In addition, when adding other types of effects, such as tremolo, celeste, and voltamento, to the generated musical sound, it is of course necessary to set parameters, and it is also necessary to set parameters for determining the shape of the envelope waveform. be.

``Problems that no invention can solve'' By the way, in conventional electronic musical instruments, when a tone is selected, parameters corresponding to the selected tone are automatically set in the musical tone generator. (For example, see Utility Model Application Publication No. 56-38392), and it was not possible for the performer to change the parameters himself.

The present invention has been made in view of the above-mentioned circumstances, and provides a parameter setting device for an electronic musical instrument that allows a performer to set parameters by himself or herself, and also enables the parameters to be set at the same time as a tone is selected. The purpose is to

"Means for Solving Problems" The present invention includes a display means for displaying parameters, a changing means for changing the parameters displayed on the display means,
a transfer means for transferring the parameters displayed on the display means to the musical tone generator; and when the tone selection switch is operated;
The present invention is characterized by comprising means for causing the display means to display parameters corresponding to the operated tone color selection switch.

"Operation" According to the present invention, the parameters are displayed on the display means at the same time as the tone color selection switch is operated. The performer can freely change the displayed parameters using the changing means. Then, the parameters displayed on the display means are transferred to the tone generation section by the transfer means and set.

"Embodiment" Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic musical instrument to which the parameter setting device according to the same embodiment is applied. The electronic musical instrument shown in this figure is capable of adding various effects such as vibrato, tremolo, and celeste to musical sounds. Only one effect will be explained. In this figure, 11 is a CPU (central processing unit), and 12 is a ROM. As shown in FIG. 2, this ROM+2 is provided with areas 12a to 12c, and area 1
2a stores the CPU II program, and area 1
Tone parameters are stored in area 2b, and area 12
c is the factory preset vibrato parameter FV
P(1) to (N) are stored. Here, factory preset vibrato parameters FVP(1) to (N
) is a vibrato parameter preset at the factory when manufacturing an electronic musical instrument, and the parameter PVP (
1) is the parameter corresponding to the tone whose tone code TC is "1", ..., the parameter FVP(N) is the tone code T
C is a parameter corresponding to the tone of rNJ.

In addition, each parameter FVP(1) to (N) is a delay parameter F'DLP and a speed parameter Fsp, respectively.
p, and a depth parameter F'DPP.

13 is rlAM for data storage, and this RAM 13
As shown in FIG. 3, there is a register 13a in which a tone code TC is stored, a flag area 13'b in which various flags are stored, and a player vibrato parameter PV.
A vibrato parameter area 13c in which P(1) to (N) are stored, a parameter area 13d in which various parameters other than vibrato parameters are stored, and a working area 13e are provided. in this case,
The following flags are stored in the flag area 13b.

■Vibrato flag VF: "l" when in vibrato parameter setting mode, "l" when in other parameter setting mode
0'' flag ■ Copy display flag CP: Flag that is “I” when copy display (described later) is being performed on the LCD display I9, and “0” when it is not ■ Copy yes flag CY
F: A flag that is “l” in the case of copy yes, which will be described later, and “0” in the case of copy know ■D11 display flag DLF: “!” in the setting mode of delay parameter PDLP among the vibrato parameters, otherwise ■Speed display flag SPF: Speed parameter PS
“I” in case of PP setting mode, “ in other cases.
0” flag ■Depth display flag DPF: Depth parameter PDPP
“I” if the setting mode is “0” otherwise.
In addition, the player vibrato parameters PVP(1) to (N) in the area 13c are vibrato parameters set by the player, and the parameter PVP(1)
~(N) respectively correspond to the tone code TC[IJ~rNJ, and each parameter PVP(1)~(N) corresponds to the delay parameter PDLP and speed parameter P, respectively.
It consists of SPP and depth parameter PDPP.

Next, in FIG. 1, I5 is a keyboard, and each key of this keyboard I5 is provided with a key switch for detecting a key operation.

16 is an operation panel, the details of which are shown in FIG. In this figure, 18 is a multi-menu unit,
LCD (liquid crystal) display 19, menu select switches 2OL, 20U, 20D, 20r (and data switch 211), 2. It is composed of an IU and an enter switch 22. This Maruji Menu Unit! - 18 is for setting parameters, so in this electronic musical instrument, various parameters such as vibrato parameters can be set using this multi-key menu and unit I8. The multi-menu operator unit 24 is composed of a plurality of operators for specifying what parameters are to be set by the multi-menu unit 18.

The operator unit 25 is, for example, a volume control.

Multi-menu unit 1 including effect on/off switch, etc.
It is composed of other operators not related to 8. The tone selection switch unit 26 includes a tone selection switch 27.2.
7... and LEDs 28, 28, . . . corresponding to each tone selection switch 27, 27, . When a tone color is selected by the tone color selection switch 27, the LED 28 corresponding to the selected tone color lights up.

Reference numeral 29 in FIG. 1 is a musical tone generating section that forms and outputs a musical tone signal, and has a vibrato control circuit 29a inside. The musical tone signal output from the musical tone generating section 29 is supplied to the sound system 30. The sound system 30 amplifies the musical tone signal supplied from the musical tone generator 29, and produces a musical tone from a speaker.

Next, the operation of the electronic musical instrument shown in Fig. 1 is explained in Figs. 5 to 1.1.
This will be explained with reference to the CPU II operation flowchart shown in the figure. FIG. 5 is a flowchart showing the main routine. Each process of this main routine will be explained below.

(i) Initialization processing SO When the electronic musical instrument is powered on, the CPU II first performs the following steps.
This initialization process SO is performed. That is, various registers provided in the musical tone generating section 29 are cleared,
Furthermore, the factory preset vibrato parameter F V p (
1) Transfer ~(N) to area 13c of RAMl3.

(ii 'I 'aebJ y+ 2, /-p thousand 2
k 4 machine NQ + In this process St, CPU
11, first, each tone selection switch 27, 27, etc. provided in the tone selection switch unit 26 (FIG. 4).
The outputs of ・ are sequentially scanned, and then the operating states of switches 27, 27, etc. are changed based on the scan results (
Detect whether an event) has occurred.

If an on event of any of the tone selection switches 27 is detected, subroutine 5B shown in FIG.
Proceed to R1. In this subroutine 5I3R1,
First, the tone selection switch 27 where the on event was detected
The tone color code TC corresponding to TC is written into the register 13a (FIG. 3) in the INAM 13 (step 5al). Next, proceed to step Sa2 and proceed to area 12b of 110M12.
, the tone color parameter corresponding to the newly turned on tone color selection switch 27 is read out, and the read tone color parameter is output to the musical tone generation section 29. Next step S
Proceed to a3 and press L corresponding to that tone selection switch 27.
The LED 28 is turned on and the other LEDs 28 are turned off. Next, proceed to step Sa4, and set "I" as the vibrato flag VF and copy display flag CF in the factory 13b, copy yes flag CY F, delay display flag D L F, speed flag SPF, and depth display flag DPF. "0" is written in each. Next, when the process advances to step Sa5, the characters VIBRATOMODE COPY Y/N- are displayed on the LCD display I9. Note that this display will hereinafter be referred to as a copy display. This small display has the following meaning: 0 “Vibrato effect parameter setting mode.

Should I go with the factory preset vibrato parameters or change them (use player vibrato parameters)? ” Here, the bar below rNJ is a cursor. next,
Proceeding to step Sa6, the player vibrato parameter PVP (TC) in the area 13c (FIG. 3) corresponding to the tone code TO in the register 13a (FIG. 3) is read out from the area 13c, and the tone generator 29 The signal is output to the vibrato control circuit 29a. That is, in this case, the factory preset vibrato parameter F'V
P(TC) should be set for two musical tone generators (see processing SO). Then return to the main routine. Here, the performance stand is a keyboard! 5, the factory preset vibrato parameter P V P is applied to the generated musical tone.
(TC) is applied, so that the performer can hear the vibrato effect caused by the same parameter FVP(TC).

(iii) Multi-menu unit scan processing 82C
When PUII proceeds to this process S2, first, switch 2
OL, 20 U, 20 D, 2 OR, 21 U, 2 ID
, 22 sequentially, and based on the scan results, each switch 20L to 20fl, 21U, 2
1 D, 22 on event is detected. Then, the following processes are performed depending on the type of switch in which the on event was detected.

(iii-1) When the on event of the menu select switch 2OL switch 20L is detected, the CPU II
The process proceeds to subroutine 5Bn2 shown in FIG. When proceeding to this subroutine 5BR2, first, step Sb
At l, the vibrato flag VF (Fig. 3) is “1”.
Determine whether or not.

Then, the judgment result of this step sbt is rY E S
For J (vibrato parameter setting mode)
The process proceeds to step Sb2, and the copy display flag CF is set to l.
”.Then, this judgment result is rYEs.
In case of J, that is, LCD display! When the copy display is being performed at 9, the process advances to step Sb3, and it is determined whether the copy yes flag CYF is "1" or not. here,
The Cobiy Yes flag CYF is "l" when the cursor in the Cobii display is under rYJ (that is, when the cursor is Copy Yes), and when it is under rNJ (when it is Copy Yes).
This is a flag that becomes “0”. And this step Sb
If the determination result in step 3 is rY E S J (the cursor is under rNJ), the process advances to step Sb4 and the cursor is moved under rYJ. Next step 5
b5- -zb h-+-+ 1-@t
/ + +1 +l = pl r+
NF rs L - Write "1" into the rear 13b. Then return to the main routine.

Further, if the determination result in step Sbl is rNOJ, that is, if it is a setting mode for parameters other than the vibrato parameter, the process proceeds to step ShG, and the on-event processing of the switch 20L as described above is performed for the other parameters.

Further, if the determination result in step Sb2 is "NO", that is, if copy display is not performed, and
If the determination result in step Sb3 is "NO", that is, if the cursor is under rYJ, the process returns to the main routine.

As is clear from the above process, in the vibrato parameter setting mode, turning on the switch 20L moves the cursor under rYJ in the copy display.

(iii-2) When the on event of the menu select switch 20R switch 2011 is detected, the CPU
The processing of subroutine I proceeds to subroutine 5BR3 (path shown) - the processing of this subroutine 5Br13 is almost the same as that of subroutine 5BR2 described above. However, the processing content differs in the following points. That is, the determination in step Sb3 is rC
YF-“1”? J, and the process of step Sb4 is
"Move the cursor to position Y/N" and the process in step Sb5 becomes "CYF-"0"". That is, when the switch 20R is turned on in the vibrato parameter setting mode, the cursor in the covey display moves to rNJ processing.

(iii-3) Enter switch 22 Performance After selecting with the switch 2OL or 2OR mentioned above, the enter switch 22 is turned on. This switch 2
When the second ON event is detected, the CPU II proceeds to subroutine 5I3R4 shown in FIG. Proceeding to this subroutine 5BR4, first, in step Scl, it is determined whether the vibrato flag VF is "I". Then, when this judgment result is rY E S J, step S
Proceeding to c2, it is determined whether or not the coby display flag CF is "l". If the judgment result is °rY E S J, the process proceeds to step Sc3, and the Kobi Yes flag C
Determine whether YF is "l" or not. And this 1'll
If the analysis result is YESJ, if the player selects the factory preset vibrato parameters, the process advances to step Sc4, and the factory preset vibrato parameters corresponding to the tone code TC in the register 13a (Figure 3) are selected. FVP(TC) is read from area 12c of ROMI2 and written into area 13c of RAM+3 as player vibrato parameter PVP(TC). Next, when the process advances to step Sc5, the player vibrato parameter PVP (TC) is set by the tone generator 2.
It is output to the vibrato control circuit 29a of No.9. This allows the factory preset vibrato parameter F
V P (TC) is set in the vibrato control circuit 29a.

Next, in step Sc6, "0" is written as the cobby display flag CF, and "I" is written as the delay display flag DLF in the area 13b.

By setting the delay display flag DLF to “l”,
After that, the mode becomes delay parameter setting mode.

Next, when the process advances to step Sc7, the next display (hereinafter referred to as delay display) is performed on the LCD display 19.

PLAYER VrBrLATO 1, DELAY 口口 Here, within Rolo is the player vibrato parameter PV.
The delay parameter PDLP of P(TC) is displayed. Then return to the main routine.

On the other hand, if the judgment result in step Scl is "No",
Proceeding to step Sc8, the enter switch-on event processing as described above is performed for other parameters. Further, if the determination result in step Sc2 is rNOJ, the process directly returns to the main routine. Further, if the determination result in step Sc3 is "NO", steps Sc4 and Sc5
Jump to step Sc6 and proceed to step Sc6.

After the performer turns on the tone selection switch 27, the performer selects the cursor position on the copy display and steps Sc
Since the results of each determination of l and Sc2 are rY E S J, the process advances to step Sc3. Here, if the performer has selected rYJ with the cursor, step S
Steps c4 and Sc5 are performed, and then step Sc6
, Sc7 are performed.

Also, if the performer has selected "N" with the cursor, the process of steps Sc4 and Sc5 is skipped, and
Processing in steps Sc6 and Sc7 is performed. The process in step Sc7 is a process for setting delay parameters. That is, the performer then sets the delay parameters using the data switches 21D and 21U.

(iii-4) Data switch 21U When an on event of this data switch 21U is detected, the CPU II executes subroutine 51311 shown in FIG.
Proceed to step 5. In this subroutine 5I3R5, first, in step Sdl, the vibrato flag VF is set to "I".
Determine whether or not. If the result of this judgment is "NO", step Sd28: Ton 7jll M
N-! ;, J /y l- 4 1 1 f
:: #7 No, - After processing the on-event of f-21U, return to the main routine. On the other hand, rY E
In the case of S j, the process advances to step Sd3. In this step Sd3, it is determined whether the copy display flag CF is "0" or not. If the result of this determination is rNOJ, the process returns to the main routine, and if rYESJ,
Step 5 (Proceeds to step 14. In step Sd4, it is determined whether the delay display flag DLF is "1". If the result of this judgment is rY E S J, the process proceeds to step Sd5.

In step Sd5, the delay parameter PDLP of the player vibrato parameters PVD (TC) in the area 13c (FIG. 3) is incremented. and,
Proceed to step Sd6. In step Sd6, the above parameters P D L P are output to the LCD display I9. As a result, the display of the Rollo portion in the multiple delay display is changed.

Next, the process proceeds to step Sd7, where the above parameters PDLP
is output to the vibrato control circuit 29a in the naive sound generating section 29.

In this way, when delay display is performed (D
LF-“1”), the data switch 21U is 1
Once turned on, the player vibrato parameter P
The value of D L I) increases by ill. 2 times, 3 times...
When this is repeatedly turned on, the value of the same parameter P"DLP increases successively as r2J, r3 total, etc.

On the other hand, if the determination result in step Sd4 described above is "NO", the process advances to step Sd8. In step Sd8,
It is determined whether or not the speed display flag S P F <1". If the result of this determination is rY E S J, the process advances to step Sd9, and the speed parameter PSPP of the player vibrato parameters PVP (TC) is determined.
Increment. Further, if the determination result in step Sd8 is "NO", the process proceeds to step SdlO, and the depth parameter PDP in the parameter PVP (TC) is
Increment P. Note that the above-mentioned step Sd
8 to Sdl O will be explained again later.

Note that the maximum values of the parameters PDLP, PSPP, and PDPP are determined, and these parameters PDLP are set by operating the data switch 2IU.

When PSPP and PDPP reach their maximum values, these parameters will not increase even if the switch 21U is further operated.

(iii-5) Data switch 21D When an on event of this data switch 21D is detected, crtzt proceeds to subroutine 5BR6 (not shown). The processing process of this subroutine 5BR6 is the same as step Sd5. in subroutine 5BR5 described above. Sd9
．． This is the same as subroutine 5B115 except that the processing content of SdlO is decrement instead of increment. In other words, for example, when the delay display is being performed (D L F - "l"), when the data switch 21D is turned on once, the value of the delay parameter PDLI' decreases by "1". do. 2 times, 3 times・
...and be turned on repeatedly, the same parameter PDLP
The value of r2 J, r3 J, etc. decreases sequentially. The same applies to the parameters PSPP and PDPP. Note that these parameters PDLP, PSPP, and PDP are determined by the minimum values of the parameters PDLP, PSPP, and PDPP.
When P reaches the minimum value, these parameters will not decrease even if the switch 21D is further operated.

Therefore, the performer can use the data switch 21U mentioned above,
After the delay parameter PDLP is set by 21D, the speed parameter PSPP is next set. In this case, the performer first turns on the menu select switch 20U.

(iii-6) Menu select switch 20U When the on event of this switch 20U is detected, the CPU
The process of I proceeds to subroutine 5I3R7 shown in FIG. 1O. In this subroutine 5I3R7, first, in step Scl, it is determined whether the vibrato flag VF is "1". If the result of this determination is "NO", the process advances to step S-e2, where other parameter setting processing is performed, and then the process returns to the main routine. On the other hand, rYE
In the case of sJ, zu2,, -7IC-rihachi:Ih? +
,,, -7'C-Q Determine whether or not the IJ copy display flag CF is "0".

If the result of this judgment is rNOJ, the process returns to the main routine, and if the result is rYEsJ, the process proceeds to step Se4. In step Se4, delay display flags D1, F
It is determined whether or not is "1". And this judgment result is r
If YESJ, proceed to step Se5. Step S
At e5, the delay display flag DLF is set to "0" and the speed display flag SPF is set to "!". By setting the speed display flag SPF force 1'', the speed data setting mode is entered.Next, when the process advances to step Se6, the following display (hereinafter referred to as speed display) is made on the LCD display 19.

PLAYERVIBRATO 2,5PEED Here, within Rolo is the player vibrato parameter PV.
The speed parameter PSPP of P(TO) is displayed. Then return to the main routine.

In this way, when the switch 20U is turned on once when the setting of the delay parameter PDLP is completed, the speed display flag SPF becomes "I", and the speed display described above is turned off. Here, the performance stage is set to the speed parameter PSP using the data switches 211, 211), as in the case of the delay parameter setting.
Configure P. In this case, the determination result in step Sd8 in FIG. 9 is YES, and the process in step Sd9 is delayed.

After setting this speed parameter PSPP,
The performer then sets the depth parameter PDPP. In this case, the performer turns on the switch 20U again.

When the switch 200 is turned on, the processing of the CPU II proceeds to the subroutine 5B117 again. In this case, step Se1. Proceeds to step Se4 via Se3, and since the judgment result of step Se4 is rNoJ (
(see step Se5), the process proceeds to step Se7. In step Se7, it is determined whether the speed display flag SPF is "I". In this case, the judgment result is rY E S J
(see step Se5), and the process advances to step Se8. In step Se8, the speed display flag SPF is set to “
0", and the depth display flag DPF is set to "l". Next, when the process proceeds to step Se9, the following display (
(hereinafter referred to as depth display).

PLAYERVIBRATO 3, DEPT) [Here, within Rolo is the player vibrato parameter PV.
The depth parameter PDPP of P(TC) is displayed.

Then return to the main routine.

In this way, when the switch 20U is turned on once when the setting of the speed parameter PSPP is completed, the depth display flag DPF becomes "1" and the above-mentioned depth display is performed. At this point, the performer should press the data switch 21 in the same way as when setting delay parameters.
The depth parameter PDPP is set using U and 2+D. In this case, step Sd4 in FIG. Both of the determination results at Sd8 are rNOJ, and the processing at step SdlO is delayed. In this way, each parameter P−−+ + M + m rq r
Srs r* /N 49 λjdznina, -1,
1. When the switch 20U is turned on after setting the depth parameter PDPP described above, CFull
The process again proceeds to subroutine 5B117. In this case, step Se? via steps Sel, Se3, Se4? Proceed to step Se7, and the judgment result of this step Se7 is rN.
Since it becomes OJ (see step Se8), the process advances to step Set O. In step 5elo, the depth display flag DPF is set to "0" and the delay display flag DLF is set to "0".
Let be "l". Next, the process advances to step Sell 1, and the above-described delay display is performed again. That is, the setting of the delay parameter PDLP becomes possible again. next,
When the switch 20U is turned on again, a speed display is performed, and thereafter, each time the switch 200 is turned on, a depth display, a delay display, a speed display, etc. are repeatedly performed.

(iii-7) Menu select switch 20D When this switch 20D is repeatedly turned on, the LCD display 'Epl9 will be displayed in the reverse order of the above, that is, the delay display, the depth direction maximum speed man display, etc. It is done. Note that the CPU II processing performed in response to the on-event of the switch 20D is almost the same as the subroutine 5I3117 described above, and therefore a description thereof will be omitted.

The above is the multi-menu unit scan process S2 in FIG.

(1v) Multi-menu operator unit scan processing C
When the PUII proceeds to this process S3, it first sequentially scans the output of each operator of the multi-menu operator unit 24, and then detects an on event of the operator based on the scan result. When an on event of any of the operators is detected, the routine advances to subroutine 5BR8 shown in FIG. 1I. Proceeding to this subroutine 5BR8,
First, in step Srl, all flags related to vibrato, that is, vibrato flag VF, copy display flag CF, copy yes flag CYF, delay display flag DLF, speed display flag SPF, and depth display flag DPF are each set to "0".

This process makes it impossible to change the vibrato parameters from now on. Next, the process proceeds to step Sr2, where various processes are performed such as displaying the parameters on the LCD display 19 in order to set the parameters corresponding to the operator where the on-event has occurred.

(v) Manipulator unit scan process 54 When the CPU II proceeds to this process S4, it first sequentially scans the output of each manipulator of the manipulator unit 25, and then detects a manipulator event based on the scan result. When an event for any of the controls is detected, predetermined processing is performed in response to the event. for example,
Parameters (effect on/off, volume data, etc.) corresponding to the operator in which the event has occurred are output to the musical tone generator 29.

(vi) Key scan processing 55 When the CPU II proceeds to this process S5, it first sequentially scans the output of each key switch of the keyboard 15 (FIG. 1), and then, based on this scan result, an on event or an off event. Detect the key in which the occurs. Next, a channel assignment process is performed for the key in which the on-event has been detected, and then the key code of the key, channel data indicating the assigned channel, and a key-on signal are sent to the tone generator 29. As a result, a musical tone signal of the key in which the on-event has occurred is generated in the musical tone generating section 29 and output to the sound system 30. Next, it is detected which sound generation channel the key in which the off-event has been detected is assigned to, and then the channel data indicating the relevant channel and the key-off signal are output to the musical tone generating section 29.

As a result, the formation of a musical tone signal corresponding to the key that has been turned off shifts to a decay state.

Therefore, when the above-mentioned process S5 is completed, the CPU II
The process is the tone selection switch scan process S! Go back and repeat the above process.

[Modification of the above embodiment]

Next, a modification of the above embodiment will be described.

Although the evening setting has been taken as an example, the present invention can of course also be applied to setting parameters for pond seeds, for example, parameters related to envelope waveforms.

(ii) In the above embodiment, player vibrato parameters PVP(1) to (N) are provided for each timbre, but to save memory, they may be provided for one set or for each timbre group.

(iii) In the above embodiment, each part is controlled by program control, but instead of this, dedicated hardware may be provided.

(iv) In the above embodiment, parameters are changed using the data switch (up/down switch) 21U.

21D, or alternatively, parameters may be changed using a numeric keypad, dial volume, or the like.

(V) A vibrato effect setting on/off switch is provided,
Even if the vibrato parameters can be changed only when the switch is turned on, (vi) In the embodiment described in J-, when the tone selection switch 27 is operated,
It will automatically enter vibrato effect setting mode, but it is best to continue setting parameters such as tremolo and envelope. In this case, for example, when the enter switch 22 is turned on after setting the vibrato speed, etc., the tremolo speed, tremolo depth, etc. can be set.

"Effects of the Invention" As explained above, according to the present invention, there is an advantage that the performer can set parameters by himself/herself. Also,
According to this invention, the parameter setting becomes possible at the same time as the tone color is selected, and therefore there is an advantage that the parameter setting can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument to which an embodiment of the present invention is applied, and FIG. 2 is a block diagram showing the configuration of an electronic musical instrument to which an embodiment of the invention is applied.
FIG. 3 is a diagram showing the storage area of RAM 13 in the same embodiment, FIG. 4 is a diagram showing the configuration of the operation panel 20 in the same embodiment, and FIGS.
The figure is a flowchart showing the processing process of the CPU 11 in the same embodiment, and FIG. 5 is a diagram showing the main routine.
FIGS. 6 to 1I are diagrams each showing a subroutine. ! !・・CPU, 12・・ROM513・・RAMl
19... LCD display, 20 U, 2 OR, 20 U,
20 D...Menu select switch, 21U. 21D: Data switch, 26: Tone selection switch unit, 27: Tone selection switch, 29: Musical tone generation section. F? AM+3 ROM+
2 Figure 3 Figure 2 Figure 6 Figure 5 Figure 8

Claims (1)

[Scope of Claims] (a) display means for displaying parameters; (b) changing means for changing the parameters displayed on the display means; and (c) a musical sound generation unit that changes the parameters displayed on the display means. (d) means for displaying parameters corresponding to the operated timbre selection switch on the display means when the timbre selection switch is operated; .