JPH0137754B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electronic musical instrument equipped with a function to edit parameters for setting and controlling various musical tone elements such as volume, timbre, pitch, and effects, and in particular, The present invention relates to editing parameters that are collectively given as preset data, and more specifically relates to editing parameters stored in an external storage medium.

Prior Art Generally, electronic musical instruments are equipped with a large number of manual controls for selecting on/off or stepwise settings of various tones, volumes, effects, etc., and the outputs of these controls are used as musical tone control parameters. I am trying to use it in a musical tone generation circuit. On the other hand, it is equipped with a preset function that allows the desired setting state, that is, a set of parameters corresponding to each controller to be stored in advance, and that a set of parameters can be read out at once by operating a switch and used for musical tone control. Electronic musical instruments have also been known for a long time. Nowadays, one or more sets of preset parameter data, that is, preset data, are generally stored in an electronic storage device inside an electronic musical instrument, and are selectively pulled out from this storage device and used for musical tone control. be done. Since the capacity of the internal storage device is limited by itself, in order to be able to use a wide variety of preset data, it is necessary to store various preset data on an external storage medium (e.g. magnetic card, non-volatile memory, etc.). Then, a desired external storage medium is attached to the electronic musical instrument, and the preset data is transferred from the storage medium to the internal storage device.
By the way, it is impossible, difficult, or time-consuming to randomly access external storage media used for such purposes from the electronic musical instrument side, and when reading or writing, all the stored contents of the external storage medium are There is no choice but to read the contents of the internal storage device all at once to the internal storage device, or to write the contents of the internal storage device to the external storage medium all at once. Therefore, the parameters (preset data) stored in the external storage medium can only be edited within a limited range, which is inconvenient. Here, editing parameters means changing the storage order of multiple sets of preset data stored in one external storage medium, or changing one or more sets of preset data in an external storage medium to another. This refers to replacing the preset data with data on an external storage medium, or creating a new external storage medium by selecting one or more sets of preset data from a plurality of external storage media. With conventional devices, complex parameter editing as described above was impossible or nearly impossible. Additionally, with conventional devices, when all sets of preset data are read from an external storage medium and stored in the internal storage device, all preset data previously stored in the internal storage device is erased. There was a problem. Therefore, if it is desired to save the preset data, the preset data in the internal storage device must be written in advance to a separate external storage medium, which is troublesome.

Purpose of the invention This invention has been made in view of the above points,
It is an object of the present invention to provide a parameter editing device that allows easy editing of preset data (parameters) stored in an external storage medium.

Summary of the Invention The parameter editing device of the present invention is provided with two sets of internal storage means (first and second storage means) for storing a plurality of sets of parameters (preset data), and the parameters can be set using a manual operator. (or change)
The stored parameter data is stored in the first storage means, the data stored in the external storage medium is stored in the second storage means, and one set of parameter data is selectively read out from the second storage means and read out as needed. This is changed using a manual operator and stored in the first storage means to perform desired editing, and finally the contents of the first storage means are written to an external storage medium. It is.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, a panel setting section 10 has a large number of manual controls for individually selecting and setting various parameters for controlling musical tones (parameters for tone, volume, pitch, effects, rhythm, automatic performance, etc.). An operator section 11 including an operator, a preset switch section 12 for collectively selecting a preset set of data corresponding to various parameters, and an instruction for reading and writing from a memory pack 50 (external storage medium). It also includes a memory pack switch section 51 for storing data. Each operator in the operator unit 11 is an on/off switch, a multi-stage switch,
It consists of a variable resistor (volume), etc., and is also provided with display means for visually displaying each setting state. For example, an illuminated on/off switch, a switch with a multistage illuminator that displays the setting level in the form of a bar graph, a multistage switch with an electrically operated operating lever, or a variable resistor with an electrically operated operating lever may be used. The setting status display can of course be changed by manually operating the controller itself, but also by electrical signals given from other sources. It's becoming like that. For controls using variable resistors, it shall be possible to obtain digital data by converting the analog output to digital, or by digitally detecting the position of the control lever. . The preset switch unit 12 includes preset switches P corresponding to eight sets of preset parameter data.
1 to P8, a memory switch MSW used when writing preset data, and a call switch CSW for calling the state of the operator unit 11 immediately before the preset data was selected.
The memory pack switch unit 51 includes a read switch RS, a write switch WS, and a
Contains a confirmation switch CS that is operated simultaneously for confirmation when operating the RS and WS.

CPU (central processing unit) 13, program
A microcomputer section including a ROM (read only memory) 14, a working RAM (random access memory) 15, and a data RAM 16 backed up by a battery backup circuit 17 scans each switch and operator of the panel setting section 10. and detects the selected setting state thereof, and provides a signal for setting the display means corresponding to each switch and operator to a desired state. Also,
The microcomputer section scans each key switch of the keyboard 18 to detect key presses and key releases, assigns the pressed key to one of a plurality of musical sound generation channels, and sends the key information assigned to each channel to the musical sound generation circuit 19. Send. Further, various parameter data for musical tone control determined based on the operation in the panel setting section 10 is sent to the musical tone generating circuit 19. The musical tone generation circuit 19 generates musical tone signals based on key information assigned to each channel, and includes a musical tone control circuit that controls the musical tone signals in accordance with various parameter data for musical tone control. A musical tone signal generated by the musical tone generating circuit 19 is given to a sound system 20.

Further, the microcomputer section sends and receives information to and from the memory pack 50 via the memory pack interface 52. The memory pack 50 is
A removable external storage medium that stores multiple sets of preset data, such as non-volatile memory such as EPROM, bubble memory, battery backed up CMOS memory, magnetic card, floppy disk, laser disk, etc. It is configured using a memory card and is capable of both writing and reading.

The data RAM 16 includes two types of memory areas M1 and M2 as shown in FIG. 2 as data storage areas related to the setting of musical tone control parameters. In the first memory area M1, the first
Preset memory PM1 (1) to PM1 (8)
Each of them stores one set of parameters preset corresponding to each preset switch P1 to P8, and there are a total of eight sets of preset data (preset parameter data).
remember. The numbers 1 to 8 in parentheses of the reference numerals of each preset memory indicate the subscript numbers of the corresponding preset switches P1 to P8.
This first preset memory PM1(1) to PM
1(8) functions as the original internal storage device corresponding to each preset switch P1 to P8. Therefore, when selecting preset data using the internal storage device, the preset switches P1 to P
This first preset memory
Data is read out from PM1(1) to PM1(8), and when parameter data manually set with the operator unit 11 is stored as preset data, this first preset memory PM1 is used. (1) to PM1(8).

The second memory area M2 includes second preset memories PM2(1) to PM2(1) to PM1(8) of the same size as the first preset memories PM1(1) to PM1(8) described above.
Contains PM2 (8). This second preset memory PM2(1) to PM2(8) corresponds to the external memory (memory pack 50),
An external memory, that is, a memory pack 50 is inserted into a predetermined location of this electronic musical instrument, and an interface 52 is inserted into the electronic musical instrument.
When connected to the memory pack 50, all stored data in the memory pack 50 is temporarily transferred to the second preset memory. After that, you can freely edit the contents of this second preset memory, and finally store the edited contents of the second preset memory in the memory pack 5.
Writing to 0 essentially performs parameter editing of the external memory (memory pack 50).

The memory configuration of the memory pack 50 is as shown in FIG. 3, with second preset memories PM2(1) to
Compatible with PM2 (8). memory pack 50
The memory area EM consists of eight memories EM(1) to EM(8) that can each store eight sets of preset data.
The numbers 1 to 8 in parentheses of these reference numbers correspond to the subscript numbers of the preset switches P1 to P8, and when transferring data, the same numbers (that is, PM2 (1) and EM ( 1), PM2
(2) and EM(2), and so on) data is transferred.

Returning to FIG. 2, other memories in the first memory area M1 will be explained. Memory PM1(c)
1 which had been supplied to the musical tone generation circuit 19 until immediately before a set of preset data (preset numbers) was selected as parameter data for musical tone control by selective operation of the preset switches P1 to P8. This is for storing a set of parameter data, and when each data in a set of parameter data to be supplied to the musical tone generating circuit 19 is changed individually by manual operation of the operator section 11, this change is performed. Control is performed to update the memory contents accordingly, but when a set of parameter data to be supplied to the musical tone generation circuit 19 is changed all at once by selecting the preset switches P1 to P8, the The contents of memory cannot be changed.

The panel buffer memory PBM stores a set of parameter data to be supplied to the musical tone generation circuit 19, and is connected to the preset switches P1 to P8.
The stored contents are rewritten in accordance with the selection operation and in accordance with the manual operation of the operator section 11. The parameter data stored in this memory PBM is
This shows the control status of the tone, volume, pitch, effect, etc. regarding the musical tone currently being produced.

The preset switch number register PNO stores the numbers of the operated preset switches P1 to P8, and assigns numbers "1" to "8" to the switches P1 to P8, and stores these numbers. . Note that when the call switch CSW is operated, the number (for example, "c" is used in this specification) is stored in this register PNO.

The scan operator number register SWN is the operator unit 1.
When scanning each operator of 1, a number indicating the operator currently being scanned is temporarily stored.

The scanning operator data register SWDATA temporarily stores the value of parameter data selected and set by the operator currently being scanned (its number is indicated by SWN).

Panel flag PFLG is preset switch P
This is a flag that is reset to "0" during the operations of steps 1 to P8, and then set to "1" when the operator section 11 is manually operated, and is used to control writing to the memory PM1(c). .

PCFLG is a flag indicating whether or not the memory pack 50 is inserted, and is set to "1" when it is inserted, and reset to "0" when it is removed.

FIG. 4 shows an outline of the processing program executed by the microcomputer section. When the power switch of the electronic musical instrument is turned on,
In block 21, the panel buffer memory in the data RAM 16 that has been backed up
The tone generation circuit 19 reads out various parameter data stored in the PBM and controls the panel state based on this parameter data.
Give parameter data to . In this way, the initial setting of musical tone control parameters is performed. Note that panel state control refers to the control section 11 of the panel setting section 10.
By giving the parameter data stored in the panel buffer memory PBM to the controller, and controlling the selection setting state of each operator so that it corresponds to the corresponding parameter data (data stored in the PBM). be. For example, this is done by driving an electric operating lever or setting data in a display drive register attached to the display.

In the preset subroutine (PRSUB) 22, each switch P1 of the preset switch section 12 is
~ P8, MSW, CSW operations are detected, and based on this, processing as shown in FIG. 5 is performed. The external memory subroutine (EMSUB) 53 performs the processing shown in FIG. 7, checks whether the memory pack 50 is inserted, and sets a flag accordingly.
It controls PCFLG and controls data transfer from external memory EM to second memory area M2. The external memory read/write subroutine (ERWSUB) 54 detects the switch operation of the memory pack switch section 51, and based on this detects the switch operation as shown in FIG.
The contents of the first memory area M1 are written all at once to the first memory area M1, or the contents of the first memory area M1 are written all at once to the external memory EM.
In the panel operator subroutine (PNSUB) 23, as shown in FIG. 6, each operator of the operator unit 11 is scanned and processing is performed based on this. Through the processing of subroutines 22 and 23, the contents of the panel buffer memory PBM are changed to contents corresponding to the operations of the preset switch section 12 and the operator section 11. The data stored in the panel buffer memory PBM thus established is sent to the tone generation circuit 19 (block 24). Thereafter, other processing, such as key switch scanning and assignment of the keyboard 18, sending key information to the musical tone generation circuit 19, etc., is performed (block 25), and the process returns to the preset subroutine 22.

The preset subroutine (PRSUB) 22 will be explained with reference to FIG. 5. First, in block 26, it is determined whether any of the preset switches P1 to P8 or the call switch CSW has changed from off to on. If NO, return and immediately end this subroutine 22. If YES, the process advances to block 27, and the number of the operated switch ("1" to "8", "c") is taken into the preset switch number register PNO. Next, block 2
In step 8, it is checked whether the memory switches MSW are turned on at the same time. If YES, proceed to block 29,
The data stored in the panel buffer memory PBM is
Preset memory PM1 with the number indicated by register PNO in memory area M1 of
(PNO) (PM1 (1) ~ PM1 (8) or PM
1(c)). If NO, proceed to block 30 and check whether the flag PCFLG is set to "1".

If memory pack 50 is not inserted
PCFLG is "0" and block 55 is executed.
In block 55, a set of preset data is read from the preset memory PM1 (PNO) in the first memory area M1 whose number is indicated by the register PNO, and is written into the panel buffer memory PBM. On the other hand, memory pack 50
If the PCFLG is inserted, PCFLG is "1" and block 56 is executed. In block 56,
Preset memory PM in second memory area M2 with the number indicated by register PNO
Read a set of preset data from 2 (PNO) (any of PM2 (1) to PM2 (8)),
Write this to the panel buffer memory PBM.
Note that all addresses in the panel buffer memory PBM correspond to all the controls in the control section 11, but each preset memory PM1 (1) to PM1 (8), PM
1(c), PM2(1) to PM2(8) have fewer addresses. This applies to controls that are not subject to presets (for example, master volume controls, expression data setting controls, etc.)
This is because there exists. Therefore, when writing from memory PBM to memories PM1 (PNO) and PM2 (PNO), one set of parameter data to be preset is written, and the data is written to memories PM1 (PNO), PM2 (PNO).
When writing from PM2 (PNO) to PBM, writing is performed only to the address part of PBM that is subject to preset, and is not subject to preset.
Data in other address parts of PBM is not cleared and is retained.

In block 31, light emitting diodes (LEDs) corresponding to the operated preset switches P1 to P8 and call switch CSW are turned on. A light emitting diode is provided at the push button portion of each of the switches P1 to P8 and CSW, and by lighting the light emitting diode, the operated preset switch is displayed. In the next block 32, the panel flag
Reset PFLG to “0”. In block 33, the data stored in the panel buffer memory PBM is read out and applied to the operator unit 11, so that the selection setting state (display state) of each operator is the same as the content of the parameter data stored in the memory PBM. Make it. Thus, the panel buffer memory PBM
By displaying the contents on the operator section 11,
The contents of the selected set of preset data are visually displayed. In addition, panel buffer memory PBM
The stored data is stored in block 24 of the main routine.
Since the preset data is sent to the musical tone generating circuit 19 through the process shown in FIG. 4, the musical tone is controlled by the selected preset data.

In this way, when the preset switches P1 to P8 are pressed alone (that is, when reading preset data), the process of block 55 or 56 causes the preset switches P1 to P8 to be pressed in the first or second memory area M1 or M2. Preset memory PM1 (1) with the number corresponding to the preset switch
~PM2(8) or PM2(1) ~PM2(8)
A set of preset data is read out from the panel buffer memory PBM and written all at once to the panel buffer memory PBM. At this time, if the memory pack 50 is inserted, writing is performed exclusively from the preset memories PM2(1) to PM2(8) in the second memory area M2 to the panel buffer memory PBM (block 56). Second memory area M2
Since the data in the memory pack 50 is transferred as is to the preset switches P1 to P1,
Memory pack 50 or external memory
This is equivalent to randomly accessing EM.

On the other hand, if preset switches P1 to P8 and memory switch MSW are pressed at the same time (that is, when writing preset data), block 2
By the process of 9, panel buffer memory PBM
The contents of are written exclusively to the preset memories PM1(1) to PM1(8) corresponding to the pressed preset switches in the first memory area M1.
In this way, when writing the state of the panel controls to the preset memory, this is done only to the first memory area M1 without destroying the contents of the second memory area M2 corresponding to the external memory EM. On the other hand, when selectively using preset data in the external memory EM, the first memory area M1
This can be done without destroying the preset data stored in the internal memory.

To prove the external memory subroutine (EMSUB) 53 with reference to FIG. 7, first, in block 57, check whether the flag PCFLG is set to "1" (that is, whether the memory pack 50 remains inserted). Find out whether or not.
If NO, a check is made at block 58 to see if the memory pack 50 has been inserted. memory pack 50
Block 58 is YES when newly inserted
Then, the flag PCFLG is set to “1” in block 59.
Then, by processing block 60, all memory of external memory EM is removed from memory pack 50.
The stored data of EM(1) to EM(8) is read out and written to the corresponding preset memories PM2(1) to PM2(8) in the second memory area M2, respectively.

After PCFLG is set to "1", the process advances from YES in block 57 to block 61 to check whether the memory pack 50 has been removed. When the memory pack 50 is removed, block 62 resets the flag PCFLG to "0". Therefore,
The flag PCFLG is set to "1" while the memory pack 50 is inserted. The contents of the external memory EM are then transferred to the second memory area M2.
(block 60), and this second memory area M2 is accessed in response to the operation of preset switches P1 to P8 (block 5 in FIG.
6). In FIG. 7, when the memory pack 50 is inserted, its contents are automatically written to the second memory M2 by the process of block 60, which is convenient, but is not limited to this. ,
This may be done by operating a separately provided switch.

The external memory read/write subroutine (ERWSUB) 54 will be explained with reference to FIG. 8. Block 63 checks whether the confirmation switch CS is on, and block 64 checks whether the read switch RS has changed from off to on. In block 65, it is checked whether the write switch WS has changed from off to on. If the read switch RS or write switch WS malfunctions, the first memory area M1 or external memory
In order to prevent the memory of EM from being rewritten, these switches RS and WS are activated when pressed together with confirmation switch CS.
Therefore, when the confirmation switch CS is off, this subroutine 54 ends immediately, and only when CS is on, the switches RS,
Examine changes in WS.

When the read switch RS is turned on, the second memory area M2 is read by the process of block 66.
Each preset memory PM2(1) to PM2(8)
The data is stored in each of the corresponding preset memories PM1(1) to PM1 in the first memory area M1.
Write in (8) respectively. That is, in effect,
External memory EM of inserted memory pack 50
The contents of the first preset memory PM1(1)~
This is equivalent to being written to PM1 (8). Therefore, in block 66, the contents of the external memory EM may be read and written to the first memory area M1, but it is faster to write from memory area M2 inside the computer to M1. be able to.

When the write switch WS is turned on, the first memory area M1 is
Each preset memory PM1 (1) to PM1 (8)
The data is stored in each of the corresponding preset memories PM2(1) to PM2 in the second memory area M2.
(8) respectively, and then write the contents of the second memory area M2 to the external memory EM (memory pack 50).
write to. At this time, M1 and M2 have the same content, so the content of M1 (PM1(1) to PM1(8)
) may be written to the external memory EM.

The panel operator subroutine (PNSUB) 23 will be explained with reference to FIG. Block 34 sets the number "1" to the scan operator number register SWN.
Initialize. In block 35, the register
Control section 1 corresponding to the number stored in SWN
Detects the selection setting state of the controls in No. 1 and takes the output data into the scanning control data register SWDATA. In block 36, the register
Panel buffer memory corresponding to the contents of SWDATA and the controller number stored in register SWN
It is compared with the stored contents of the address in the PBM to check whether the selection setting state of the operator indicated by the register SWN, that is, the operator currently being scanned, has been changed.
If NO, jump to block 37 and increment the number of register SWN by 1. On the other hand, if YES, proceed to block 38 and register SWDATA
Write the contents of to the corresponding address of the buffer memory PBM (address corresponding to the contents of SWN).
In the next block 39, a register is set for the display means of the operator corresponding to the contents of register SWN.
Provides a display drive signal corresponding to the contents of SWDATA. This process of block 39 is not necessary for controls (eg, locking switches, electric volume controls, etc.) that include a locking device for setting and displaying settings in connection with the control itself.

In block 40, it is checked whether the panel flag PFLG is "0". If it is "0", it means that in this subroutine 23, the operator unit 11 has been manually operated for the first time after preset data has been selected by the preset switches P1 to P8, and the process advances to block 41. block 41
Now, the data stored in the panel buffer memory PBM is written to the memory PM1(c). At this time memory
The data stored in the PBM is one data of a set of parameter data set all at once by preset selection, which is changed by the process of block 38 in response to manual operation of the operator. This set of parameter data is collectively written to the memory PM(c). The next block 42 sets the panel flag PFLG to "1", and then the process goes to block 37.

On the other hand, if the panel flag PFLG is “1”,
From NO in block 40, the process advances to block 43, where the contents of register SWDATA are written to the corresponding address (address corresponding to the contents of SWN) in memory PM1(c). In this way, in accordance with the manual operation of the operator section 11, the contents of the memory PM1(c) are updated in the same way as the contents of the panel buffer memory PBM are updated.

After incrementing the operator number of register SWN by 1 in block 37, it is checked in block 44 whether the contents of register SWN have reached a predetermined end value, and if NO, the process returns to block 35 and the routine from blocks 35 to 37 is executed. Repeat for the controller number incremented by 1. In this way, the selection setting state of each operator of the operator unit 11 is sequentially scanned, and when the scanning of all the operators is completed, the block 44 becomes YES. Note that the processing of blocks 40, 41, 42, and 43 is performed using registers.
This process is performed when the SWN operator number corresponds to an operator to be preset, and for operators that are not to be preset, these processes are skipped and the process moves to blocks 39 to 37.

Next, an example of editing data in the external memory EM will be explained.

Example 1 When changing the order of preset data in the external memory EM (1) First, insert the memory pack 50 and transfer the contents of the external memory EM to the second memory area M2 (block 60 in FIG. 7).

(2) Next, press the desired number preset switch P1.
~P8 is pressed to write a corresponding set of preset data in the second memory area M2 into the panel buffer memory PBM (block 56 in FIG. 5).

(3) Next, press the desired number preset switch P1.
~P8 and memory switch MSW are pressed together to select the corresponding preset memories PM1(1)~PM1(8) in the first memory area M1.
The preset data of the panel buffer memory PBM is written to (block 29 in FIG. 5).

(4) Next, repeat (2) and (3) above to rearrange the order of the preset data in the second memory area M2 and transfer all of them to the first memory area M1.

(5) Finally, confirm switch CS and write switch
Press WS together to open the first memory area M1
Preset memory PM1 (1) to PM1 (8)
The contents of are written to the second memory area M2 and the external memory EM (block 67 in FIG. 8).

Example 2 When changing some of the data in the external memory EM (for example, changing the preset data corresponding to preset switch number 3) (1) Insert the memory pack 50 and change the data in the external memory.
Write the contents of EM to the second memory area M2.

(2) Press the confirmation switch CS and readout switch RS together to read the contents of M2 to PM1 (1) of M1.
~ PM1 (8) is written accordingly (block 66 in Figure 8).

(3) Press the preset switch P3 with the desired number (3 in this case) to write the corresponding preset data in the M2 preset memory PM2 (3) to the panel buffer memory PBM (as shown in Fig. 5). Block 56).

(4) Manually operate the desired controller using the controller section 11.
Partially change the parameter data in PBM (processing in Figure 6).

(5) Memory switch of preset switch P3
Press MSW together to write the PBM preset data to PM1(3) of M1 (block 29 in FIG. 5).

(6) Finally, confirm switch CS and write switch
Press WS together and PM1(1) to PM of M1
Write the contents of 1(8) to M2 and EM.

If you want to redo the data change after operation (5) above and before operation (6), repeat steps (3), (4), and (5) without returning to (1). Just give it back. Previously, this was not possible and had to be started all over again.

Example 3 When extracting preset data little by little from multiple external memories and editing them in one external memory (1) Insert the desired memory pack 50 and transfer the contents of the external memory EM to the second memory area E2.
write to.

(2) Press the desired preset switch P1 to P8 to select the corresponding second preset memory
Write the contents of PM2(1) to PM2(8) to panel buffer memory PBM.

(3) Press the preset switches P1 to P8 of any number together with the memory switch MSW to select the corresponding first preset memory PM1 (1).
~Write the PBM data of PM1 (8).

(4) Remove the memory pack 50 that has already been inserted, replace the memory pack 50 with another one, and repeat steps (1), (2), and (3) above.

(5) When the writing to the first preset memories PM1(1) to PM1(8) is completed by repeating the above (4), insert the memory pack 50 for writing the edited preset data,
Press the confirmation switch CS and the write switch WS together to write the contents of PM1(1) to PM1(8) to M2 and EM.

According to this method, for example, the registrations (panel setting states) of multiple famous players recorded in multiple memory packs are gathered together and
can be combined into one memory pack.

Example 4 When creating multiple sets of preset data by slightly changing one set of data that you like among multiple sets of preset data in external memory (1) Select the memory pack 50 containing the desired preset data. the contents of the external memory EM are written into the second memory area M2.

(2) Specify the desired preset data number using preset switches P1 to P8, and enter its contents using M2.
Write from panel buffer memory PBM.

(3) Change the parameter data in the PBM as desired by manually operating the operator section 11.

(4) Press any preset switch P1 to P8 together with memory switch MSW to select the corresponding first preset memory PM1(1) to PM.
Write the contents of PBM in 1(8).

(5) Perform the same operation as in (2) above for the same preset number, perform the operation in (3) above in a different manner from the above, and perform the operation in (4) above for a different preset switch than the above. Let's do it.

(6) Repeat (5) above as desired. Here, above
When performing the same operation as in (2), you can change the number of preset data to be written from M2 to PBM, or replace the memory pack 50 and write the preset data retrieved from another external memory EM in (3) above. ) may be changed.

(7) First preset memory PM1 (1) to PM
1 (8), insert the memory pack 50 for writing the edited preset data, press the confirmation switch CS and the write switch WS together, and press PM1 (1).
~Write the contents of PM1 (8) to M2 and EM.

In the above embodiment, the present invention is implemented using a microcomputer, but it goes without saying that the present invention can also be implemented using a discrete circuit configured to perform the same function.

Effects of the Invention As described above, according to the present invention, since two sets of internal storage means are provided, the contents of one (first storage means) can be stored without destroying the contents of the other (second storage means). data can be transferred, and the data can be freely edited and stored in the first storage means by randomly accessing the second storage means. Since the parameter data stored in the first storage means is finally written to the external storage medium, the parameter data in the external storage medium can be edited freely.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an overall configuration of an example of an electronic musical instrument embodying the present invention; FIG. 2 is a diagram showing an example of the configuration of a storage area related to tone control parameter setting and editing in the data RAM of FIG. 1; 3 is a diagram showing a configuration example of an external memory included in the memory pack in FIG. 1, FIG. 4 is a flowchart showing an outline of processing executed by the microcomputer section in FIG. 1, and FIG. Third
6 is a flowchart showing an example of the panel operator subroutine in FIG. 3; FIG. 7 is a flowchart showing an example of the external memory subroutine in FIG. Figure 8 is the third
2 is a flowchart illustrating an example of an external memory read/write subroutine in the figure. 10...Panel setting section, 11...Operator section, 1
2... Preset switch section, P1 to P8... Preset switch, MSW... Memory switch,
51... Memory pack switch section, CS... Confirmation switch, RS... Read switch, WS... Write switch, 18... Keyboard, 19... Musical tone generation circuit, 50... Memory pack (external storage medium),
PM1(1) to PM1(8)...first preset memory, PM2(1) to PM2(8)...second
preset memory, EM...external memory,
PBM...Panel buffer memory.

Claims (1)

[Claims] 1. Writable and readable first and second storage means for storing a plurality of sets of data corresponding to various parameters for controlling musical tones; a first control means for writing a plurality of sets of parameter data into the second storage means; and a first control means for selectively reading one set of parameter data from the first storage means or the second storage means. a third control means for writing data corresponding to a set of parameter data read by the second control means into the first storage means;
and fourth control means for writing the same set of parameter data stored in the storage means into the external storage medium. 2. The second control means is configured such that the external storage medium is attached to the electronic musical instrument, and the contents of the external storage medium have already been written to the second storage means by the first control means. on the condition that
2. The electronic musical instrument according to claim 1, wherein one set of parameter data is selectively read exclusively from said second storage means.