JPH0573049A - Parameter setting device of electronic musical instrument - Google Patents

Abstract

PURPOSE:To obtain a musical sound parameter through easy operation by storing menu data specifying respective groups, the number of the groups, and index data having address data specifying the size of data, etc. CONSTITUTION:The parameter groups which have musical sound parameters are stored and the menu data specifying them, group by group, are grouped. Then the device has a means 41 stored with the index data on the numbers, sizes, and address data of the menu data in the groups. Further, the device is equipped with a CPU 11 which searches corresponding menu data by using those data, a display part 21 for them, cursor keys 17 for specifying one of the parameters, and an input dial 18 for changing the specified parameter. Consequently, even when musical sound parameters are extended, the same menu display is made and even a familiar can select a musical sound parameter through normal easy operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument parameter setting device for inputting musical tone parameters such as tone colors in an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, there are known electronic musical instruments capable of changing musical tone characteristics such as tone color of musical tones generated.
When setting a tone parameter such as a tone color in this electronic musical instrument, particularly in a synthesizer, etc., first select a desired group from a plurality of tone parameter groups, and then further specify a desired tone parameter from the selected group. Then, the parameter value is changed.

The above operation will be described with reference to FIGS. 13 and 14. First, as shown in FIG. 13, it first appears from the menu in which the group name (NAME) of each parameter is displayed on the LCD display 1. The group names include DCW ... digital control of waveform shape, DCF ... digital control of frequency, DCA ... digital control of amplitude, etc. It will be described later. Further, eight data input dials 2 are arranged below the LCD display 1 (details will be described later since they are the same as those in the embodiment).

After that, bring the cursor 3 to the group name (NAME) to be selected with the cursor keys (for example, DCA), and then press the edit key.
As shown in FIG. 4, the names of eight tone parameters of DCA and their parameter values are displayed on the LCD display 1.
Then, when the cursor 3 is moved to the corresponding parameter value and the data input dial 2 is turned, the parameter value is changed accordingly.

On the other hand, in order to return from this display to the previous menu display (FIG. 13), the ESC switch may be sequentially pressed. As described above, in the above-described example, the parameter whose value can be changed is predetermined, and it is impossible to change the parameter later.

Therefore, conventionally, a method has been proposed in which optional software stored in an external storage device such as a floppy disk is executed as an extended program so that parameters that cannot be changed can be changed. In this method, for example, in the menu display so far, the item "extended" is displayed in the group (NAME), and when this item is specified with the cursor, the parameter name that could not be changed until now is displayed. The desired parameter is changed.

[0007]

However, in such a conventional electronic musical instrument, by adding the item "expansion", the musical tone parameter is expanded from the conventional type, and the parameter which cannot be changed until now. Although there is an advantage that a desired parameter can be specified and changed from a group added, only the number of branches of a parameter group having a tree structure (tree structure) as shown in FIG. 7 described later is simply increased. Therefore, there is a problem in that it is not possible to expand the operation function of the musical tone parameters as a whole.

That is, since the number of tone parameters increases due to the expansion, and the subdivision of the group progresses and becomes complicated, the operation of changing the parameters is troublesome and the workability is poor.

That is, until now, all the parameters included in one group have similarities, and in practice, the parameters that can be expanded and changed can be included in any of the existing groups. Then, when the group is designated, it is desirable to be displayed in one menu together with other parameters having similarities, but the conventional method cannot do so.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a parameter setting device for an electronic musical instrument, which is capable of selecting and changing a musical tone parameter with the same simple operation specifications as the conventional one, even if the musical tone parameter is expanded from a certain type. ..

[0011]

An electronic musical instrument parameter setting device according to the present invention stores a plurality of sets of parameter groups having a plurality of types of musical tone parameters for controlling the characteristics of musical tones, and stores each of the above parameter groups. The menu data for designating the parameter group and the plurality of menu data are grouped, and for each group of the menu data, the number of menu data contained in the group, the size of one menu data, and the menu data are designated. Storage means for storing the designated data and the table-of-contents data respectively having the address data for designating another menu data group, the designating means for designating the desired parameter group from the storage means, and based on the designation by the designating means. , Eyes for each of the above menu data groups Search means for searching the corresponding menu data using the number and size of menu data in the data, display means for displaying the menu data searched by the search means, and the displayed menu It is characterized by comprising a parameter designating means for designating one of the parameters included in the parameter group corresponding to the data, and a modifying means for modifying the parameter designated by the parameter designating means.

[0012]

According to the present invention, the menu data for designating each group for each group, the number of groups for each group, the size of the menu data of each group, the designation data for designating the menu data, and other multiple groups. And table of contents data having address data for specifying

When the parameters are specified,
The corresponding menu data is searched using the number and size of the table of contents data, and the searched menu data is displayed. Further, any one of the parameters included in the group corresponding to the displayed menu data is designated, and the value of the designated parameter is changed.

Therefore, even if the musical tone parameters are expanded from a certain type, the menu display similar to the conventional one is displayed, and even a user who has been used can select and change the musical tone parameters by a normal simple operation.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of an embodiment of a parameter setting device for an electronic musical instrument according to the present invention. In FIG. 1, reference numeral 11 denotes a CPU, and the CPU 11 has a program stored in the ROM 12, musical tone parameters and the like, and a RAM 1.
Based on the data and the like temporarily stored in 3, the processing and the like necessary for playing the electronic musical instrument of this embodiment are executed.

An external memory 14 is connected to the CPU 11, and the external memory 14 stores optional software handled by an external storage system such as a floppy disk as an extended program so that new parameters can be changed. In addition, it stores another kind of extended musical tone parameters and the like.

The CPU 11 has a keyboard 15, a mode key 16 and a cursor key 1 for designating the pitch of a musical tone by a performance operation.
Operation information is respectively input from the data input dial 7 and the data input dial 18, and the keyboard 15, the keys 16 and 17, and the data input dial 18 are arranged in the instrument body shown in FIG.

The mode key 16 is composed of an ESC key (escape key) 16a and an EDIT key 16b. Also, the cursor key 17 is the up cursor key 1
7a, a down cursor key 17b, a right cursor key 17c, and a left cursor key 17d. The data input dial 18 includes eight dial Nos. 8 arranged in the vicinity of the LCD display section 21 in the instrument body. 1-No.
8 is composed of, for example, an encoder, and the value of the musical sound parameter is input by being rotated.

ESC key 16a and EDIT key 16
The LEDs 31 ... Are arranged in the vicinity of b, respectively, and the LEDs 31 ...
The display is controlled by U11. LED31 ... is E
When the SC key 16a and the EDIT key 16b are operated and activated, they are lit to inform the performer that they are in the pressed state.

The LCD display unit 21 has a liquid crystal screen and displays various information as shown in FIG. 12 described later on this screen. The liquid crystal screen of the LCD display unit 21 has, for example, a display of 40 characters × 16 lines.

In the ROM 12, parameter groups consisting of a plurality of types of musical tone parameters are stored in PIANO-1, PIANO-1.
A plurality of groups are stored for each tone color such as ANO-2.

For each tone parameter belonging to one parameter group, the parameter value is stored as DATA for each parameter. And LCD
When any tone color is designated by operating the cursor key 17 on the screen of the display unit 21, the CPU 11 selects the parameter group corresponding to this tone color and selects the RAM.
Store in 13.

Further, as a feature of the present embodiment, the ROM 12 stores a plurality of parameter groups having a plurality of tone parameters, and menu data for designating each group and the group data for each group. The table stores the number of groups, the size of menu data of each group, designation data designating menu data, and table-of-contents data having address data designating other plural groups.

Further, the external memory 14 also stores the expanded musical tone parameters in the same manner, and corresponding to the expanded musical tone parameters, the menu data, the table of contents data, etc. of the expanded portion are formed in the same format as the case of the ROM 12 described above. I remember. Therefore, the ROM 12 and the external memory 14 form a storage unit 41.

The data structure handled by this device is shown in FIG.
It is shown as in FIG. Data has two types of structure,
MENU ITEM (menu data) and EDIT I
It is TEM (editing data). The MENU ITEM corresponds to the data of one entire screen, and the EDIT ITEM corresponds to the parameters one-to-one.

The MENU ITEM has the following format as shown in FIG. 3 and is composed of 4 words. LEV ・ ・ ・ ・ id of menu (displayed at menu level [0,0,0]) NAME ・ ・ ・ name of top menu (indicating what menu) SHEEET ・ Screen initial data (display other than top menu) ) EDIT ... Head position of EDIT ITEM

The EDIT ITEM has the following format as shown in FIG. 4, and is also composed of 4 words. MD: Numerical value type XY: Numerical value display position (equivalent to cursor position) SM: Numerical memory address (equivalent to parameter memory address) NM: Numerical value Maximum and minimum (corresponding to the setting allowable range)

In the case of the present embodiment, the menu data specifies the group for each group, and further, for one group group (arranged as an array table) in which a plurality of groups are collected, Table of contents data indicating a table of contents is provided at the beginning of each group. This state is shown in FIG.

That is, in FIG. 5, a predetermined number (here, n) of MENU ITEM1 to MENU ITEM.
One group group in which n is collected is represented as an array table 101, and menu table data 101a is provided at the head position of the array table 101. And
N MENUs linked to the menu table of contents data 101a
ITEM1 to MENU ITEMn are arranged. In addition, a plurality of (here, 3
Individual) EDIT ITEM1 to EDIT ITEM3 are provided.

A plurality of array tables 101 forming such a group of groups are provided and stored in the ROM 12. Further, in addition to this, in the present embodiment, the external memory 1
An array table 201 similar to the above is stored in correspondence with the musical tone parameters expanded in FIG.

This array table 201 also has n MENUs.
The ITEM1 to MENUITEMn form one group group, and the menu table data 201a is provided at the head position of the array table 201.
Then, n MENU ITEM1 to MENU ITMn are arranged in series with the menu table of contents data 201a.

Further, each ME in the array table 201
NU ITEM has multiple (for example, 3) EDITs.
ITEM1 to EDIT ITEM3 are provided (not shown). Since the array table 201 is temporarily stored in the RAM 13 from the external memory 14, it is displayed as being read from the outside in FIG.

The menu table-of-contents data (for example, the menu table-of-contents data 101a of the array table 101) in each array table has data in the format shown in FIG. SIZE ... size of array element (EDIT in this example)
Size of ITEM, 5 words) NUM ... Size of array of this block (MENU
Equivalent to the number of ITEM) BODY ... Start address of array element (MENU I)
Start address of TEM) NEXT ... Start address of next table of contents

Here, the menu is an M representing each editing specification.
This is a table of contents for displaying the names of ENU ITEM and selecting each function. This menu has a tree structure as shown in FIG. 7, and the user can reach a desired editing function by following the branches of this tree in order.

The numerical values in FIG. 7 are the MEN as described above.
It is the level of UITEM and represents the position of each tree structure. This level is represented by a set of numerical values such as [0, 0, 0]. If there is at least one 0, it corresponds to the menu display. If the level consists of all non-zero values, the timbre is edited. Corresponds to the function.

As will be described later, the CPU 11 reads out the ROM 12 and the external memory 14 when the tone parameter edit mode is selected by pressing the EDIT key 16b.
The data necessary for editing the musical tone parameters is read from and stored in the RAM 13, and then, when the desired parameter group is designated by the cursor key 17, the corresponding menu data is obtained using the number and size of the table of contents data. Search. Therefore, the CPU 11 constitutes a search means.

The LCD display unit 21 also displays the menu data searched by the CPU 11. Therefore, the LCD display unit 21 constitutes a display means.

Further, the CPU 11 determines the characteristic of the musical sound by the value of the parameter stored in the RAM 13, and instructs the sound source 32 to generate the musical tone signal having the determined characteristic and having the pitch designated by the keyboard 14. To do.

The tone signal having the characteristic generated by the sound source 32 is reproduced and emitted by the sound system 33, whereby the characteristic determined by the value of the parameter is output from the sound system 33. A musical tone having the above pitch is generated.

In the above, the cursor key 17 has a function as a parameter designating means for designating any one of the parameters included in the group corresponding to the displayed menu data, and the data input dial 18 is a parameter designating means. It has a function as a changing means for changing the designated parameter.

Of the mode keys 16, the ESC key (escape key) 16a is pressed when canceling a data input operation or the like and returning to the previous step. Also, E
The DIT key 16b is pressed when selecting an edit mode for inputting a tone parameter.

Next, the operation of this embodiment having the above configuration will be described with reference to the flow charts shown in FIGS. In FIG. 8, first, in step S1, the id counter (that is, the level register) is set to [0,0,0]. As shown in FIG. 7, the id counter stores a value for designating a directory of a plurality of parameter groups having a plurality of types of tone parameters that determine the characteristics of a tone.

When the value of the id counter is [0,0,0],
In the initial state shown in FIG. 7, that is, in the top directory, the main menu screen (so-called top menu)
Is equivalent to specifying. Below this top menu, there are multiple (three in FIG. 7) subdirectories, and the highest digit of the id counter is [1,0,0] to [3,0,0]. Specified by

Further, for example, there are a plurality (three in FIG. 7) of subdirectories under the subdirectory whose highest digit of the id counter is specified by [1], and these sub directories are the second from the bottom of the id counter. Digits are [1,1,0] to [1,
3, 0].

The other sub-directories also have a plurality of sub-directories. Furthermore, i
There are a plurality of sub-directories under the sub-directory whose second digit from the bottom of the d counter is specified by [1]. In the example of FIG. 7, the lowest digit of the id counter is [1,
1, 1] to [1, 3, 1].

Here, the value of the id counter is [0, 0,
0] is the top directory, that is, the top menu screen is shown in FIG. 12 (B). 12
(B) is a selection mode (SELECT PROGRAM
KEY), and for example, the following directories can be displayed.

1: WAVE / DCW: Digital control of waveform shape 2: PITCH: Pitch variable 3: DCF: Digital control of frequency 4: DCA: Digital control of amplitude 5: PAN / EFFECT ..Sound image fixed position / effect In addition, the directory in the extension program stored in the external memory 14 can be displayed.

Returning again to the flowchart, step S
After passing 1, the value of the level pointer is set to [1] in the following step S2. Here, the level pointer designates each digit of the id counter. When [1] is set, the highest digit of the id counter is set, and when set to [2], the second digit from the bottom of the id counter is set. In the case of [3], the least significant digit of the id counter is designated.

Therefore, by setting the value of the level pointer to [1] in step S2, the most significant digit of the id counter can be designated. Then, step S3
Search processing is performed with. The search processing searches the top menu for a directory in which all values other than the leading numerical value of this level (that is, the most significant digit of the id counter) are [0]. In the case of this example, [1, 0,
0], [2,0,0], and [3,0,0] are the corresponding directories. The detailed subroutine of the search process is shown in FIG. 10 described later.

Then, in step S4, the search result is displayed. Specifically, the SH of NAME indicated by the id counter
EET (initial data of screen: display other than top menu: see FIG. 12A), NAME (name of top menu: indicates what menu), and NAME of searched menu are displayed. This allows the performer to know the name of the top menu and other display contents from the search results.

Next, in step S5, it is determined whether or not the cursor key (cursor SW) 17 has been operated. When operated, the cursor on the screen is moved in step S6 in accordance with the operation status of the cursor key 17. Step S
7. If it is not operated, step S6 is skipped and the process proceeds to step S7.

In step S7, the EDIT key (EDI
T SW) 16b is discriminated whether or not it is pressed, and E
When the DIT key 16b is pressed, step S8
The LEV of the NAME selected by the cursor (id of the menu) is stored in the digit indicated by the level pointer of the id counter.

As a result, the level pointer id
Since the most significant digit of the counter can be specified, the sub directories [1,0,0] to [3,0,0] in the lower sub-directory of the top menu screen are displayed depending on the cursor position.
.. can be specified.

For example, when the position of the cursor is WAVE / DC
When it is at a position for designating W (digital control of waveform shape), a screen of a subdirectory as shown in FIG. FIG. 12 (B)
, ENV is envelope, MOD is modulation, KF
Indicates key follow, and VEL indicates velocity. Then
In step S9, the value of the level pointer is incremented by [1].

Therefore, the value of the level pointer is [1].
If it is, increment [2]
When the value of the level pointer is [2], it is incremented to become [3].

Next, in step S14, it is determined whether or not the value of the level pointer is larger than [3], and when it is [3] or less, it is determined that the lowest digit of the id counter cannot be designated. And returns to step S3. Also,
If [3] is exceeded, it is determined that the lowest digit of the id counter can be designated, and the process proceeds to step S15 shown in FIG.

On the other hand, in step S7, the EDIT key 16b
If is not pressed, it is determined that the edit mode is not in effect, and the process proceeds to step S10, and the ESC key (ESCSW)
It is determined whether 16a is pressed. ESC key 1
When 6a is pressed, it is determined in step S11 whether or not the value of the level pointer is [1] or less. When it is [1] or less, it means that the most significant digit of the id counter can be designated. After making a determination, the process proceeds to step S12, the digit of the id counter indicated by the level pointer is returned to [0], the value of the level pointer is decremented by [1] in step S13, and then the process proceeds to step S14.

If NO at step S10 and NO at step S11, step S1 is performed.
Skip to 4. Therefore, by decrementing when the value of the level pointer is [3],
It becomes [2] and returns to the upper digit, and when the value of the level pointer is [2], it is decremented,
It becomes [1] and returns to the highest digit. As a result, when the process returns to step S3, the top menu screen is displayed again.

Turning to FIG. 9, in step S15, the menu screen indicated by the id counter is displayed. At this time, the value of the level pointer exceeds [3], and the lowest digit of the id counter can be specified. Therefore, the menu item displayed on the LCD display unit 21 is the lowest subdirectory. , A subdirectory screen shown in FIG. 12C, for example, is displayed.

FIG. 12C shows an example in which DCW ENV (digital control of envelope) is selected. In the figure, each symbol has the following meaning with respect to the envelope. AT: Attack time (rise time) AL: Attack level DT: Decay time (fall time) DL: Decay level 2T: Second attack time SL: Sustain level RT: Release time RL: Release level These symbols The tone parameter indicated by is a parameter for digitally controlling the envelope of the tone signal.

Then, in step S16, EDIT IT
Initialize the EM (edit data) pointer. As a result, this pointer indicates, for example, the first one of the eight tone parameters (AT: attack time).

In step S17, the EDIT ITEM (edit data) indicated by this pointer is read out, and in step S18 it is determined whether or not the cursor key 17 has been operated. When operated, the operation status of the cursor key 17 is correlated. In step S19, the cursor on the screen is moved to proceed to step S20. If not operated, step S19 is skipped and the process proceeds to step S20.

In step S20, it is determined whether or not the position of the cursor on the screen and the address of the numerical value display position XY corresponding to the cursor position match. If they match, the cursor indicates in step S21. The dial data of the data input dial 18 at the position is read.

Then, in step S22, the dial data is limited within the maximum and minimum allowable range NM, and
In step S23, the dial data is written to the memory address indicated by SM (that is, the parameter memory address). Further, in step S24, the numerical value indicated by the cursor is set as the numerical value of the dial data, and the process proceeds to step S25.
As a result, the size of one selected tone parameter is determined by operating the data input dial 18, and the data is written in the memory. Further, the process of step S24 corresponds to changing the value of the previous parameter.

Specifically, the size of one selected musical tone parameter among AT, AL, DT, etc. in the digital control of the envelope shown in FIG. 12C is determined by the operation of the data input dial 18. When the performance mode described later is selected, it is read and given to the sound source 32 as a parameter input.

On the other hand, when the position of the cursor and the address of the display position XY do not match in step S20,
Steps S21 to S24 are skipped and the process proceeds to step S25. Therefore, at this time, the previously selected one tone parameter and its magnitude are not changed by LC.
It is displayed on the D display unit 21.

In step S25, it is determined whether or not the ESC key 16a is pressed. If the ESC key 16a is pressed, in step S26 the i indicated by the level pointer is displayed.
The digit of the d counter is returned to [0], and step S2 is performed.
After decrementing the value of the level pointer by [1] in 7, the process returns to step S3.

Therefore, the value of the level pointer is [3].
If it is, it decrements to [2] and returns to the upper digit, and if the value of the level pointer is [2], it decrements to [1] to the highest digit. Return to. Thus, when the process returns to step S3, the search process is performed again.

If NO in step S25, the pointer of EDIT ITEM (edit data) is incremented by [1] in step S28, and then step S
Return to 17. As a result, this pointer is, for example, the second from the beginning among the eight tone parameters (A in the above).
(L: attack level) is indicated, and from this state, the processing of step S17 and thereafter is executed again to change the musical tone parameter.

Next, the search process shown in FIG. 10 will be described. First, in step S301, the table of contents data of the menu is read. As a result, the search is always started from the first table of contents data. For example, in the example of FIG. 5, the search starts from the menu table of contents data 101a in the array table 101.

Then, in step S302, the BODY address data in the table of contents data is stored in the ADR register (address register in CPU 1). As a result, the start address of the array element (array table 101) is stored.

In step S303, the value of the search pointer is set to [0] (clear). Also, step S304
Use the contents of the ADR register as an address to
Read the NUTEM data. As a result, the data of the one designated by the ADR register is read out from the plurality of MENU ITEMs.

Then, in step S305, it is determined whether or not the digit exceeding the digit indicated by the level pointer in the value of the id counter is [0]. If YES, the head address of the MENU ITEM is stored in step S306. This means, for example, when the level pointer indicates the digit [1] of the id counter, the digit below it, [2], of the id counter is [0]. On the other hand, if NO in step S305, step S306
And jump to step S307.

Next, in step S307, the size of the ADR register plus SIZE (size of array element) is set as the content of the new ADR register. In step S308, the search pointer is incremented by [1] and the process proceeds to step S309. As a result, the first MENU ITE
You will proceed from M to the next MENU ITEM.

In step S309, it is determined whether or not the value of the search pointer exceeds the size of the array of this block (that is, it is determined whether or not all the contents of the selected array table have been searched), and the value is exceeded. If not, the process returns to step S304 to similarly search the next contents of the array table.

On the other hand, if YES in step S309 (that is, when all the contents of the selected array table have been searched), the flow advances to step S310 to select NEXT (the start address of the next table of contents) from the table of contents data. Read out. As a result, the process moves to the process of searching the contents of the next array table.

Then, in the next step S311, NEXT
It is determined whether or not (start address of next table of contents) is [0]. Here, the state of NEXT = [0] corresponds to the first array table. Therefore, step S31
If the answer is 1 in NO, it is determined that all the array tables have not been searched, the process returns to step S301, and the same processing is repeated.

As a result, in the example shown in FIG. 5, the array table 201 read from the outside by the extension program is also searched and displayed by the same operation as the conventional array table in the same manner as in the prior art. On the other hand, in step S311, Y
In the case of ES, it is judged that all the array tables have been searched, and this routine is ended.

As described above, in the present embodiment, when the parameters are designated, the corresponding MENU ITEM including the expanded array table is searched by using the data of the number and size of the table of contents data, and searched. M
ENU ITEM is displayed. Further, any one of the parameters included in the group corresponding to the displayed MENU ITEM is designated, and the value of the designated parameter is changed.

Therefore, even if the tone parameter is expanded from a certain type, a menu display similar to the conventional one is displayed, and the user, who has been used, can select and change the tone parameter by an ordinary simple operation. ..

Next, FIG. 11 is a subroutine showing a writing process of external data when the function is extended as extension software, and this routine is performed by an interrupt process. First, in step S51, the program of the extended function is read from the external memory 14, and at the same time, the table of contents data, MENU ITEM,
The EDIT ITEM is read and written in the RAM 13.
That is, the array table 201 shown in FIG. 5 is written.

Then, in step S52, the internal memory (R
NEX of the last table of contents data stored in AM13)
The start address of the table of contents data written in step S51 is written in T (start address of the next table of contents).

Then, in the NEXT (head address of the next table of contents) of the table of contents data written in step S53,
Store [0] and terminate the routine. This allows
It is written in the table of contents data of the expanded menu data that this is the last menu data.

Therefore, by doing this,
The expanded menu data will be expanded under the necessary specifications to be applied to the entire pre-expansion data and will not be treated specially. As a result, even when searching for an extended function in a menu format, it can be executed with the same operation specifications as in the past.

Further, since all the menu operations are performed by the program of the main body and the program of the extension software does not need a function corresponding to it, it is possible to help reduce the size of the extension software.

[0086]

According to the present invention, even if the musical tone parameter is expanded from a certain kind in the related art, the expanded menu data is expanded under the necessary specifications to be applied to the whole before expansion. Since it is not treated specially, even when searching for extension functions by menu format,
It can be executed with the same operation specifications as before. As a result, it is possible to select and change the musical tone parameters with the same simple operation specifications as the conventional one.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a parameter setting device for an electronic musical instrument of the present invention.

FIG. 2 is an external plan view of the main part of the musical instrument body of the embodiment.

FIG. 3 is a diagram showing a format of menu data of the embodiment.

FIG. 4 is a diagram showing a format of edit data according to the embodiment.

FIG. 5 is a diagram showing a system of each array element of the embodiment.

FIG. 6 is a diagram showing menu table-of-contents data in each array element of the embodiment.

FIG. 7 is a diagram showing a tree state of each directory in the embodiment.

FIG. 8 is a flowchart showing a part of a parameter setting operation of the embodiment.

FIG. 9 is a flowchart showing a part of a parameter setting operation of the same embodiment.

FIG. 10 is a flowchart showing a search process of the embodiment.

FIG. 11 is a flowchart showing an external data writing process of the same embodiment.

FIG. 12 is a plan view showing an example of a display form displayed on the LCD display unit of the embodiment.

FIG. 13 is a plan view showing an example of a display form displayed on a conventional LCD display unit.

FIG. 14 is a plan view showing an example of a display form when a parameter is changed from display contents displayed on a conventional LCD display unit.

[Explanation of symbols]

 11 CPU (Searching Means) 12 ROM 13 RAM 14 External Memory 15 Keyboard 16 Mode Key 17 Cursor Keys (Parameter Designating Means) 18 Data Entry Dial (Change Means) 21 LCD Display (Display Means) 32 Sound Source 33 Sound System 41 Storage Means 101, 201 Sequence table 101a, 201a Menu table of contents data

Claims (1)

[Claims] 1. A plurality of sets of parameter groups having a plurality of tone parameters for controlling the characteristics of musical tones are stored, and a plurality of menu data for designating the parameter groups for each parameter group and a plurality of the menu data are stored. For each group of the menu data, the number of menu data included in the group, the size of one of the menu data, the designation data for designating the menu data and the address data for designating another menu data group are grouped for each group. Storage means for storing the respective table-of-contents data, specification means for specifying the desired parameter group from the storage means, and the number of menu data in the table-of-contents data for each menu data group based on the specification of the specification means And using the size data Any one of a search means for searching the corresponding menu data, a display means for displaying the menu data searched by the search means, and a parameter included in the parameter group corresponding to the displayed menu data. A parameter setting device for an electronic musical instrument, comprising: a parameter designating means for designating a parameter and a modifying means for modifying a parameter designated by the parameter designating means.