JPH0310558Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention uses a controller device that can move the controller position both manually and electrically to control various elements such as pitch, timbre, volume, and effects of musical sounds. The present invention relates to a parameter setting device for an electronic musical instrument that sets parameter information to be controlled.

[Prior art]

Conventionally, as shown in, for example, Japanese Patent Application Laid-Open No. 57-95604, there is an operator device in which the position of an operator for setting parameter information for musical tone formation can be moved both manually and electrically.

This operator device consists of an operator equipped with a slider that slides on a predetermined code pattern electrode, and a drive mechanism including a motor and a worm gear to move the position of the operator. Extracts the control information corresponding to the position of
This operator information is used as parameter information.

According to this operator device, the operator information taken out from the code pattern electrode is supplied to the preset memory, so that desired parameter information can be preset by manually moving the position of the operator. It can be stored in the set memory. On the other hand, by using the preset parameter information read from the preset memory as the target value and the controller information corresponding to the current position of the controller as the current value, the motor is rotated forward or reverse until the two match. can be automatically moved to a position corresponding to the preset parameter information, so the contents of the preset parameter information can be read directly based on the position of the operator without the need for a special display means. Preset parameter information can be changed by manually moving the operator position.

However, conventional parameter setting devices using such controller devices constantly send control signals to the drive mechanism according to the magnitude relationship between the controller information corresponding to the current position of the controller and the preset parameter information. If you try to move the control manually, the control signal generation system generates a control signal that moves the control in the opposite direction to the manual operation direction, making it easy to move the control manually. The disadvantage was that it could not be moved.

[Purpose and structure of the invention]

This invention was devised in view of the above-mentioned drawbacks, and its purpose is to provide a parameter setting device for an electronic musical instrument that allows the operator in the operator device to be easily moved manually.

To this end, this invention allows the drive mechanism including the motor etc. to operate only for a predetermined period of time after giving preset parameter information to the operator device in order to move the operator's position, and prohibits the operation after the predetermined time has elapsed. It is configured to do so.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of an electronic musical instrument to which this invention is applied. In the figure, 1 is an operation panel circuit that sets parameter information that controls various elements such as the timbre of musical sounds, and 2 is a central processing unit that detects set parameter information and controls the transfer of parameter information to the tone generator. 3 is a program memory that stores program data for various processes to be executed by the CPU 2, 4 is a working memory that temporarily stores the results of arithmetic processing by the CPU 2, and 5 is a specific 1
6 is a set of preset information for the preset memory 5; 6 is a set of preset information for the preset memory 5;
A timer that generates a timer end signal after a certain period of time has elapsed after a PRD read command is issued, and 7 has a key switch corresponding to each key on the keyboard section (not shown), and when any key is pressed, the pressed key A keyboard circuit 8 outputs key information KD corresponding to the keyboard circuit 7, and a keyboard circuit 8 outputs a musical tone signal based on the key information KD from the keyboard circuit 7 and parameter information transferred via the data bus (D BUS) under the control of the CPU 2. This is a tone generator that generates sound from the speaker 9.

The operation panel circuit 1 includes n control devices whose control positions can be moved both manually and electrically.
LVU ₁ ~ LVU _o and each control device LVU ₁ ~ _{LVU o}
n buffer memories BF ₁ to _{BF o} that temporarily store parameter information transferred to and from the CPU 2;
Select one of the N preset information memory areas in the buffer memory _BFk and the preset memory 5, which temporarily stores the enable signal ME for enabling the operation of the electric mechanisms in the control devices _LVU1 to _LVUo . Preset select switch
PR・SW ₁ ~PR・SW _N and preset information
Write switch W/SW to instruct PRD writing
and a tone selection switch TS to select the tone.
Panel switch circuit 1 with SW ₁ ~ TS・SW _o
0 and the output information SWD of the panel switch circuit 10
It consists of a buffer memory _BFn that stores .

In this case, each of the operator devices LVU ₁ to LVU _o is configured as shown in FIG. 2.

That is, the electric mechanism 101 electrically moves the position of the operator 100, detects the position of the operator 100, and converts the detected position information into operator parameter information.
Among the plurality of preset parameter information PMD ₁ to PMD _o included in the position sensor 102 outputting as LVD and a set of preset information PRD read from the preset memory 5, the preset parameter information PMD for the relevant control device is selected. Compare the temporarily stored register 103, the output information LVD of the position sensor 102, and the output information PMD of the register 103, and generate a comparison result signal according to the magnitude relationship.
Comparison circuit 104 that outputs AGB, AEQB, and BGA
and the output signals AGB, AEQB, of the comparison circuit 104,
Based on the BGA, the motor forward rotation signal is sent to the electric mechanism 101 until the above information LVD and PMD match.
The motor control circuit 105 that outputs the UP or motor reverse rotation signal DWN and the motor forward rotation signal UP and the motor reverse rotation signal are output only when the enable signal ME given from the buffer memory BF _k is "1".
It is composed of AND gates 106 and 107 that apply DWN to the electric mechanism 101. The preset parameter information PMD is stored in the register 103 when the CPU 2 generates a read/write control signal RW of "1". Further, which operator device the plurality of preset parameter information PMD ₁ -PMD _o read out from the preset memory 5 correspond to is indicated by the address information on the address bus (A.BUS).

On the other hand, as shown in the memory map of FIG. 3, the preset memory 5 has N memory areas PMEM(1) to PMEM(N ) is provided.

Next, the operation of the electronic musical instrument configured as described above will be explained based on the flowcharts shown in FIGS. 4 and 5.

First, when the power is turned on, the CPU 2 first selects the output information of the panel switch circuit 10 in the panel scan process of step 200 according to the program data stored in the program memory 3.
At the same time as reading SWD via buffer memory BF _n , output information LVD ₁ of control devices LVU ₁ to _{LVU o}
~ LVD _o is read through buffer memory BF ₁ ~ BF _o , and these information SWD, LVD ₁ ~ LVD _o are stored in the panel buffer memory area of working memory 4.
Temporarily memorize it in PBUF.

Next, in the preset process of step 201, the CPU 2 detects whether or not there is a change in the operating states of the switches PR.SW ₁ to PR.SW _N and W.SW in the panel switch circuit 10, and depending on the detection result, Executes write control or read control of preset information. Then, when the preset information read control is executed, the control device LVU ₁ ~
In order to enable the electric mechanism 101 in the LVU _o to operate for a certain period of time, the timer 6 starts clocking operation, and an enable signal EM of "1" is transferred to the buffer memory BF _k . After this, CPU2
In step 202, it is determined whether or not the enable signal ME of "1" is being generated, and if it is not being generated, the tone selection switch TS/SW _{1 to 1} included in the information SWD read from the panel switch circuit 10 is selected.
The tone color selection information TSD by TS/SW _o and the operator parameter information LVD ₁ to LVD _o read from the operator devices LVU ₁ to LVU _o are transferred to the tone generator 8 as panel data PANLD. As a result, in the tone generator 8, the tone selection information TSD and the operator parameter information LVD ₁ to
Musical tone format compatible with LVD _o and key press information KD
A musical tone signal with a pitch corresponding to the pitch is formed.

On the other hand, if the enable signal ME of "1" is being generated, that is, the th preset information
If a certain period of time has not elapsed after the PRD(i) read control, the preset information memory area
After the preset information PRD(i) read from PMEM(i) is transferred to the tone generator 8 and the controller devices LVU ₁ to LVU _o in step 204, only the tone selection information TSD is transferred as panel data PANLD in the next step 205. Transfer to tone generator 8. As a result, in the tone generator 8, a musical tone signal is formed in a musical tone mode corresponding to the preset information PRD(i) and the tone color selection information TSD and at a pitch corresponding to the key depression information KD.

The CPU 2 similarly executes the subsequent processing from step 200.

FIG. 5 is a flowchart showing details of the preset processing in step 201. First, in step 2010, the CPU 2 determines whether or not an enable signal ME of "1" is being generated. As a result, if the enable signal ME of "1" is not being generated, the process jumps to step 2014 and determines whether any of the preset select switches PR・SW ₁ to PR・SW _N has been turned on. . As a result, if none of the switches PR/SW ₁ to PR/SW _N are turned on, step 2 in Fig. 4 is executed.
The process moves on to step 02, but if any of them is turned on, in step 2015 the preset select switch PR.
Switch switch number (i) of SW to accumulator ACC
Set to . After that, in the next step 2016, it is determined whether or not the write switch W/SW has been turned on. If it has not been turned on, the clock operation of the timer 6 is started in step 2017, and then the enable value is set to "1". Signal ME
is transferred to the buffer memory _BFk , and then the process moves to step 202 in FIG. However, if the write switch W/SW is turned on, in step 2019, the n control parameter information LVD ₁ to LVD _o stored in the panel buffer memory area PBUF of the working memory 4 is transferred to the accumulator ACC. Preset information memory area corresponding to switch number (i) set in
After controlling the writing to PMEM(i), the process moves to step 202 in FIG.

Therefore, when the th preset select switch PR/SW is turned on and the write switch W/SW is turned on, the controller device LVU _{1 is} turned on.
~ _{LVD o is} one set of parameter information PRD
is written in the preset information memory area PMEM(i) as follows. Thereby, desired parameter information can be stored in the preset memory 5.

Meanwhile, the th preset select switch
When only the PR/SW is turned on, the CPU 2 starts the timer 6, performs the panel scan process at step 200 in FIG. On the condition that the event is occurring, it is determined in step 2011 whether or not the timer has reached the end. In other words, the enable signal ME of “1”
It is determined whether a certain period of time has passed since the occurrence of the event. As a result, if the predetermined period of time has not elapsed, the process from step 2010 is executed again through the process from steps 2014 to 2018 and the process from step 200 in FIG.

As a result of such repeated processing, when the timer reaches the end, the CPU 2 resets the time counting operation of the timer 6 in step 2012, and then sets the enable signal ME to "1" in the next step 2013.
is switched to “0” signal. In other words, if only the preset select switch PR/SW is turned on while the write switch W/SW remains off, the CPU 2 selects the ON switch PR/SW.
Switch switch number (i) of SW to accumulator ACC
At the same time, the enable signal ME of "1" is outputted from the buffer memory BF _k for a certain period of time.

As a result, in step 204 of FIG. 4, the preset information memory area corresponding to the switch number (i) set in the accumulator ACC is
Preset parameter information PMD ₁ from PMEM(i)
~PMD _o is read and buffer memory BF ₁ ~ _{BF o}
The signal is transferred to the operator devices LVU ₁ to LVU _o via the controllers LVU 1 to LVU o, and is also transferred to the tone generator 8 .
The preset parameter information PMD ₁ to PMD _o temporarily stored in the buffer memories BF ₁ to BF _o is transmitted to each control device by the read/write control signal RW.
It is stored in the internal registers 103 of LVU ₁ to LVU _o . Then, each control device LVU ₁ to LVU _o is an enable signal output from buffer memory BF _k .
While ME is "1", an operation is performed to control the position of the operator 100 to a position corresponding to the preset parameter information PMD ₁ to PMD _o .

That is, to explain the operation of the controller device LVU ₁ as a representative example, when the preset parameter information PMD ₁ is stored in the register 103, the comparator circuit 104
is controller parameter information LVD ₁ corresponding to the current position of controller 100 and preset parameter information
It compares it with PMD ₁ and outputs a comparison result signal AGB, AEGB, or BGA depending on the magnitude relationship. That is, the comparison circuit 104 calculates that LVD ₁ > PMD ₁
If there is a relationship between the comparison result signal BGA and LVD ₁
If the relationship is <PMD ₁ , the comparison result signal AGB is
Furthermore, if there is a relationship of LVD ₁ =PMD ₁ , a comparison result signal AEQB is output.

Then, the motor control circuit 105 outputs a motor forward rotation signal UP or a motor reverse rotation signal DWN according to these comparison result signals AGB, AEQB, and BGA. For example, when LVD ₁ > PMD ₁ , a motor reverse rotation signal DWN of "1" is output. As a result, a motor (not shown) provided inside the electric mechanism 101 starts to rotate in the opposite direction, and the operator 1
At the position 00, the information LVD ₁ is moved in the direction that matches the information PMD ₁ , and when the relationship of LVD ₁ = PMD ₁ is reached, the reversal signal DWN also becomes a "0" signal, and the position control of the operator 100 is performed. will be stopped.
When LVD ₁ <PMD ₁ , a motor normal rotation signal UP of "1" is output, and the position of the operator 100 is controlled to a position where LVD ₁ =PMD ₁ in the same manner as in the above case.

By the way, motor forward rotation signal UP and reverse rotation signal
DWN is applied to the electric mechanism 101 via the AND gates 106 and 107 only when the enable signal ME of “1” is generated from the buffer memory BF _k , and the enable signal ME of “1” is applied to the electric mechanism 101 by the timer 6. The time of occurrence is specified.
Therefore, if the setting time of the timer 6, that is, the generation time of the enable signal ME of "1" is set to the maximum time required for the operator 100 to move from one end of the movement to the other end of the movement, Preset parameter information PMD of any value to control device
Even if you give it to LVU, the controller 100 will be changed to this information.
The electric mechanism 101 can be reliably moved to a position corresponding to the PMD, and after the movement is completed, the electric mechanism 101 is separated from its control system, and the operator 1
00 can be easily moved manually.

As described above, according to the parameter setting device of this embodiment, the motor, etc. inside the electric mechanism 101 is controlled only for a predetermined period of time after the preset parameter information PMD is given to the operator device LVU in order to move the operator position. Since the driving means is enabled to operate and prohibited to operate after a predetermined period of time, it is easier to preset the operator 100 than in a case where the motor is driven until both the preset parameter information and the operator information match. You can move more reliably to the position corresponding to the set parameter information. In other words, if the drive control signal is inhibited by a coincidence output as in the conventional example, the motor cannot stop instantly even if it is inhibited by a coincidence, so the motor's inertia may cause the operator to go too far from its original position. It will be moved to a certain position. Therefore, it becomes difficult to stop the controls correctly at the same position.

On the other hand, in this embodiment device, the above-mentioned predetermined time is set to be a predetermined time corresponding to the time required for at least the operator 100 to move through its maximum movement range using the timer 6. You can solve problems like this. In other words, even if the controller is moved excessively due to the inertia of the motor immediately after a match, the motor is still able to operate (it is not in the inhibited state), so the controller is moved so that a match can be obtained again. is moved slightly in the opposite direction. While such feedback (servo) control is repeated, a predetermined period of time elapses and the motor becomes inhibited, but at that time the operating elements are at approximately the same position. This has the advantage that the operating elements can be accurately stopped at the same position.

Note that in the above embodiment, the electric mechanism 101
In order to enable or prohibit the movement of the operator 100 by the enable signal ME, the motor forward rotation signal UP and reverse rotation signal DWN for the electric mechanism 101 are controlled by the enable signal ME. Therefore, comparison circuit 104
The comparison operation itself or the supply of power to the electric mechanism 101 may be controlled.

[Effect of idea]

As explained above, this invention corresponds to at least the time required for the operator to move through its maximum movement range after giving preset parameter information to the operator device in order to electrically move the operator's position. The operating element drive mechanism is configured to be enabled to operate only for a predetermined period of time, and to be prohibited from operating after the predetermined period of time has elapsed.

Therefore, the operator can be accurately moved to a position corresponding to the preset parameter information, and the operator drive mechanism is separated from the operator under normal conditions, so that the operator cannot be moved manually. It can be easily set to the desired position.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of an electronic musical instrument to which this invention is applied, Fig. 2 is a block diagram showing the configuration of the control unit, Fig. 3 is a memory map showing the configuration of the preset memory, and Fig. 4 is a block diagram showing the configuration of the controller device. 5 is a flowchart showing the operation contents of the embodiment of FIG. 1. 1... Operation panel circuit, 2... Central processing unit, 5... Preset memory, 6... Timer,
LVU ₁ ~ LVU _o ...Controller device, PR/SW ₁ ~
PR・SW _N ...Preset select switch, 1
00...Controller, 101...Electric mechanism, 102...
...Position sensor, 104...Comparison circuit, 105...
Motor control circuit, 106, 107...and gate.

Claims (1)

[Claims for Utility Model Registration] Operator means having an operator for setting parameter information for musical tone control, and outputting information corresponding to the position of the operator, and converting the position of the operator into a drive control signal. a drive means for moving according to the operation; a storage means for storing parameter information for musical tone control; a switch means for instructing to read the parameter information from the storage means; and a drive means for reading out the output information of the operator from the storage means. a first control means for outputting the drive control signal so as to match the parameter information set by the switch means; A second control comprising a timer means for starting a timing operation for a predetermined time, enabling the operation of the drive means for the predetermined time, and prohibiting the supply of the drive control signal or power to the drive means after the predetermined time has elapsed. A parameter setting device for an electronic musical instrument, comprising means.