JPH10282961A - Musical sound controlling parameter generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a parameter value with hysteresis with respect to the operation of an operator by obtaining a parameter generated in the past and a parameter value corresponding to a presently operating direction and a presently operating position. SOLUTION: When a power source is supplied for a device, initialization for allowing the device to function as an electronic device is executed first. Next, positional data inputted from a bender 11 is monitored to detect the operating direction of the bender 11, the variation of the operating direction and an operating direction to generate a parameter value. After then, the presence/absence of a pressed/separated key by operating a switch provided for each key at a keyboard 12. When the pressed or separated key is detected by pressed/separated key processing after then, playing information corresponding to the pressed or separated key is sent to a sound source 18 to generate a sound according to the pressed key or to cancel a sound according to the separated key. In addition, the other processings such as the detecting processing of various operating buttons, etc., provided for an operation panel 16 or display processing to a display 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone control parameter generation device for generating and outputting parameter values of musical tone control parameters based on position data output from an operator according to an operation position. The present invention relates to a tone control parameter generation device for generating a parameter value having a hysteresis characteristic.

[0002]

2. Description of the Related Art Conventionally, an operating element capable of continuously changing an operating position and outputting position data according to the operating position,
For example, vendors and the like are used for musical tone control. Hereinafter, a description will be given using a vendor as an example. Vendors were originally performance operators that could freely change the pitch of the currently sounding musical tone by operating left and right or up and down, but with the recent expansion of electronic musical instrument technology, the control of musical tone control parameters The number of electronic musical instruments that can control musical sounds by assigning arbitrary musical sound control parameters to vendors is increasing.

[0003]

However, no matter what kind of musical tone control parameter control is assigned to the vendor, conventionally, the operation position of the vendor and the parameter value of the assigned musical tone control parameter are conventionally determined. Are associated one-to-one, and only a tone control with little change can be obtained, and there is a demand for an operator that is more interesting to play. One of the techniques suitable for this purpose is to generate a parameter value with hysteresis for the operation of the vendor. However, there is a problem in how to specifically provide hysteresis.

The present invention has been made in view of the above circumstances, and has a hysteresis between a parameter value of a musical tone control parameter generated for an operation of an operating element and a musical tone control parameter generation that is more intriguing than a conventional one. An object of the present invention is to propose a specific method for providing hysteresis in providing a device.

[0005]

The first musical tone control parameter generating device of the musical tone control parameter generating device according to the present invention which achieves the above object is capable of continuously changing the operating position, and A musical tone control parameter generating device for generating a parameter value for a musical tone control based on the positional data output from the operator, and outputting the parameter value. Detecting means for detecting the operation direction of the operation element, the change in the operation direction, and the current operation position, based on the position data to be obtained, and parameter values generated in the past,
Parameter value generating means for obtaining a parameter value according to the current operation direction and the current operation position.

A first musical tone control parameter generating device according to the present invention detects an operating direction of an operating element, a change in the operating direction, and a current operating position, and generates a parameter value generated in the past, for example, the immediately preceding parameter value. Since the parameter value is generated based on the obtained parameter value, the current operation direction, and the current operation position, it is possible to change the locus of the change in the parameter value with respect to the change in the position data according to the operation direction. Therefore, a tone control parameter generating device having a hysteresis characteristic is realized.

Here, in the first musical tone control parameter generating device of the present invention, the parameter value generating means receives the detection of a change in the operating direction of the operating element by the detecting means and operates in the operating direction. Target value setting means for setting a target value consisting of position data and a parameter value obtained when the operator is operated to a predetermined target operation position in front of the operation direction according to the operation direction after the change of It is preferable to obtain a parameter value generated in the past, a target value according to the current operation direction, and a parameter value according to the current operation position.

[0008] By setting the target value, it is possible to generate a parameter value that draws a more complicated trajectory. A second musical tone control parameter generating device according to the present invention, which achieves the above object, includes an operation element capable of continuously changing an operation position and outputting position data corresponding to the operation position, and the operation element In the tone control parameter generation device that generates and outputs a parameter value of a tone control parameter based on the position data output from the controller, the operation direction of the operator based on the position data output from the operator, Detecting means for detecting a change in the operation direction and the current operation position; and detecting the change in the operation direction of the operating element by the detection means, and responding to the operation direction after the change in the operation direction. Target value setting means for setting a target value consisting of position data and a parameter value obtained when the operator is operated to a predetermined target operation position ahead of the operation direction, A reference value detecting means for detecting a reference value consisting of position data and a parameter value, which is obtained when the operator is operated to the reference operation position in front of the operation direction and before the target operation position, The position data corresponding to the current operation position is converted into a parameter value by interpolating between the reference value corresponding to the past operation position of the operator and the reference value including the position data and the parameter value, and the reference value. Interpolating means.

Since the second tone control parameter generating device of the present invention sets the above-mentioned target value, the second tone control parameter generating device generates a parameter value describing a complicated hysteresis trajectory similarly to the first tone control parameter generating device of the present invention. Can be
In addition, since the reference value is set and the parameter is obtained by interpolation, a parameter value that smoothly changes in accordance with a change in the operation position of the operation element can be generated.

Further, according to the third aspect of the present invention, which achieves the above object,
The musical tone control parameter generation device includes an operator that can continuously change the operation position and outputs position data according to the operation position, and controls the tone control based on the position data output from the operator. In the musical tone control parameter generation device that generates and outputs the parameter value of the parameter of the above, based on the position data output from the operator,
Detecting means for detecting the operating direction of the operating element, a change in the operating direction, and a current operating position; and, when the detecting means detects a change in the operating direction, position data at the time when the operating direction is changed. And a reference value including the parameter value and the operation direction after the operation direction has changed.
A calculation method setting means for setting a calculation method for obtaining a parameter value from the position data; and a parameter value generation means for converting current position data into a parameter value based on the calculation method set by the calculation method setting means. It is characterized by having.

According to a third tone control parameter generation device of the present invention, when the operation direction of the operating element is changed, the reference value at the time when the operation direction is changed and the operation direction after the operation direction is changed. Since the calculation direction for obtaining the parameter value from the position data is set based on the
Similarly to the musical tone control parameter generating device and the second musical tone control parameter generating device, the trajectory of the change of the parameter value with respect to the trajectory of the change of the position data can be changed according to the operation direction, and the musical tone having hysteresis characteristics A control parameter generation device is realized.

Here, in the third tone control parameter generating device of the present invention, the calculation method setting means may be configured to obtain a position obtained when the operating element is operated to a predetermined target operating position ahead of the operating direction. A target value setting unit configured to set a target value including data and a parameter value; based on the initial value and a target value corresponding to the operation direction after the operation direction is changed, a parameter value is calculated from the position data. It is preferable to set the calculation method to be obtained.

When the target value is set, a more complicated trajectory is drawn as in the case where the target value is set in the above-described first tone control parameter generating device or in the case where the above-mentioned second tone control parameter generating device is set. Parameter values can be generated.

[0014]

Embodiments of the present invention will be described below. FIG. 1 is a hardware configuration diagram of an electronic musical instrument common to the first to third musical tone control parameter generation devices of the present invention. The musical tone control parameter generation device includes a vendor 11, a keyboard 12, a CPU 13, a RAM 14,
OM 15, operation panel 16, display 17, and sound source 1
8 are provided, which are interconnected via a bus 19.

The bender 11 is an example of the operating element according to the present invention, and is provided with a lever which can be tilted to the right or left. When the hand is released from the lever, the lever returns to the middle position. It is configured as follows. The vender 11 outputs position data corresponding to the operation position. The keyboard 12 is provided with a plurality of keys (keys) arranged, and key press information and key release information are output in accordance with the performance operation of those keys.

The CPU 13 executes a program stored in the ROM 15 using the RAM 14 as a work area, and controls the entire apparatus. RAM14
Is a readable and writable memory for storing a work area when the program is executed by the CPU 13 and various data. The ROM 15 is a storage area for programs executed by the CPU 13 and other data that is fixedly stored.

The operation panel 16 is provided with operation buttons and operation dials other than the vendor 11 and the keyboard 12 for giving various instructions to the apparatus, and necessary information is transmitted to the apparatus by operating them. Can be entered. On this operation panel 16, the vendor 11
The tone tone control parameter controlled by the operation is also specified.

The display 17 displays the state of the apparatus and various data set in the apparatus.
The sound source 18 is used for performing operations on the keyboard 12 and the vendor 11.
Is received to generate a tone signal corresponding to the performance information. This sound source 18
The tone signal generated in step (1) is also input to a speaker (not shown) via an amplifier (not shown), and is output to space as sound.

FIG. 2 is a schematic flowchart of a main routine executed by the CPU of the musical tone control parameter generation device whose hardware configuration is shown in FIG. When the apparatus shown in FIG. 1 is turned on, first, the apparatus is initialized to function as an electronic musical instrument (step 2_).
1). Next, an operator operation process for monitoring the position data input from the bender 11 and detecting the operation direction, the change in the operation direction, and the operation distance of the bender 11 to generate a parameter value is executed (step 2_2). . The operator operation processing in step 2_2 constitutes a characteristic part of the present invention. Details will be described later. Thereafter, a key release process for detecting the presence / absence of a key release by scanning a switch provided for each key of the keyboard 12 is executed (step 2_3).
Further, thereafter, when a key press or key release is detected in the key press release process, performance information corresponding to the key press or key release is sent to the sound source 18 to generate a sound corresponding to the key press or a key release. A sound mute process is performed to mute the sound (step 2_4). Further, other processing such as detection processing of various operation buttons provided on the operation panel 16 or display processing on the display 17 is executed (step 2_5), and the process returns to step 2_2 again. Step 2_2-
Step 2_5 is repeated.

Each of the processes of steps 2_1 to 2_5 shown in FIG. 2 except for the operation of the operator in step 2_2 is the same as the corresponding process in a conventional general electronic musical instrument. A further description of each process except for the above is omitted, and the operation device operation process of step 2_2 will be described below. FIG. 3 is a flowchart showing one mode of the operation device operation processing, and FIG. 4 is an explanatory diagram of the processing shown in FIG. The flowchart shown in FIG. 3 includes a characteristic portion of one embodiment of the first musical tone control parameter generating device of the present invention.

First, an outline of the operation operation processing executed in the flowchart of FIG. 3 will be described with reference to FIG. The horizontal axis in FIG. 4 is position data X output from the vendor 11 corresponding to the operation position of the vendor 11, and the vertical axis is a parameter value generated based on the position data X. As described above, this parameter value is a parameter value of a musical tone control parameter (for example, a pitch parameter, a volume parameter, a parameter representing a cutoff frequency, and the like) assigned to the bender 11 by operating the operation panel 16.

Although FIG. 4 shows only the range of X ≧ 0, the bender 11 can be tilted to the left or right, and there is also a range of X <0. Let them represent. When the bender 11 is tilted in the positive direction from the middle position (X = 0), the parameter value Y becomes
Along with the target value (X _q , Y _q ). Vendor 11
When X is inclined to the maximum in the positive direction, the position data X = X _q and the parameter value Y = Y _q .

Thereafter, when the vendor 11 is returned toward X = 0, the parameter value Y changes along the curve B.
When the vendor 11 is returned to the middle position of X = 0 as it is,
Parameter value Y varies along the curve B, and curve B 'returns to Y = 0, but is assumed here that is again reverse the operating direction of the vendor 11 at the time of returning to X = X _p. At that time, the parameter value Y is Y when X = X _p
= From Y _p, varies along the curve C.

[0024] Here, every time the position data output from the vendor 11 is changed by a predetermined value X _r, in the case of UP operation (vendor operation in the direction in which the position data X increases), the new parameter values Y the _{n + 1,} by using the parameter value Y _n before updating, for example, _{Y n + 1 = (Y q} + Y n) / 2 update the like ... (1), obtained locus of the curve a to the curve C In the case of a DOWN operation (a vender operation in a direction in which the position data X decreases), a new parameter value Y _{n + 1}
Is updated as, for example, Y _{n + 1} = Y _n / 2 (2), the locus of the curve B is obtained, and hysteresis is realized.

Here, the hysteresis shown in FIG. 4 is realized by the operating element operation processing shown in FIG. less than,
The symbols entered in the flowchart of FIG. 3 will be described. Some of these are also shown in FIG. X: the current position of the vendor 11 X _r: unit distance is performed once the calculation of the parameters N _{new new:} normalized by X _r of the current operating position value N _old: the operating position when subjected to previously calculated in X _r Normalized value A: N _old -N _new UP_DOWN: Vendor 1 when the previous operation was performed
A flag (UP operation: 1, DOW) indicating whether 1 is an “UP operation” (operated in the direction of increasing X) or a DOWN operation (operated in the direction of decreasing X)
N operation: 0) f (x): a function for obtaining only the integer value of the variable x in () In the manipulator operation processing shown in FIG.
The predetermined distance X _r integer part of the division value in to perform once the operation to are obtained and stored in the N _{new new} (step 3_1). Next, the difference between the value obtained in the previous step 3_1 and stored in N _old in step 3_12 and the value obtained in the current step 3_1 is calculated and stored in A (step 3_2). Then, it is determined whether or not A = 0, that is, whether or not the vendor 11 is stationary (A = 0) or moved (A ≠ 0) from the previous time to the current time (step 3_3), and the vendor 11 If it has not been moved (when A = 0), it exits this routine and returns to the main routine shown in FIG. If A ≠ 0, that is, if the vendor 11 has been moved, then the UP
The state of the _DOWN flag is checked (step 3_
4).

When UP_DOWN = 0, that is, when
Times DOWN operation (position data output from vendor 11)
Operation in the direction in which the value of the
Proceed to step 3_5 to determine whether A> 0, that is,
It is determined whether the operation is an UP operation (A> 0). A
> 0, DOWN operation to UP operation (vendor 11
In the direction in which the position data value output from the
UP_DO means that the operation direction has been reversed to
Store 1 indicating UP operation in the WN flag.
(Step 3_6), the above (1) corresponding to the UP operation
The calculation of the expression is performed | A | times (step 3_1). That
Thereafter, the calculation result is output (step 3_11). This
In this case, the calculation result is not erased and is written for the next calculation.
Remember. N _new Is N_old (Step 3_
12) Return to the main routine.

If UP_DOWN = 0 in step 3_4, that is, if the previous operation was a DOWN operation and the flow proceeds to step 3_5, and A <0, that is, if it was determined that the current operation was also a DOWN operation, the flow proceeds to step 3_10, which corresponds to the DOWN operation. Is performed | A | times, and the process proceeds to step 3 — 11. U in step 3_4
The same applies to P_DOWN = 1, that is, when the previous UP operation was performed.
> 0, that is, whether the current operation is an UP operation (A> 0) or a DOWN operation (A <0).
When DOWN = 1 and A <0, D
This means that the operation has shifted to the DOWN operation, and the process proceeds to step 3_9 to set UP_DOWN to 0, and proceeds to step 3_10 to perform the operation of the expression (2) corresponding to the DOWN operation by | A | times, and then to step 3_11.

Further, when it is determined that A> 0 in step 3_8, that is, when it is determined that the UP operation is continued this time following the previous time, the process proceeds to step 3_7, and corresponds to the UP operation (1). The calculation of the expression is performed | A | times, and the process proceeds to step 3_11. The hysteresis as shown in FIG. 4 is realized as described above. In the first embodiment of the musical tone control parameter generation device of the present invention described with reference to FIGS. 3 and 4, the target values (X _q , Y _q ) are set, and the target values are used for the calculation. Although included (see equation (1)), it is not always necessary to set a target value in the first tone control parameter generation device of the present invention. For example, as described below, a target value is set. Hysteresis can also be realized without using.

[0029] Here, the constant Y _c, n, the operation direction from the changes, the number of parameter value update, i.e. n = f (| X-X p | / X r) ...... (3) ( _Xp is the value of X when the operation direction was changed last time).
At this time, in the UP operation, when the operation direction is first reversed and the unit distance _{Xr is} first operated, _Yc / 2 is added to one previous parameter value to obtain a new parameter value; when further when unit distance X _r just been operated (summed 2X _r operation) for adding the Y _c / 4 to the parameter values of the previous one was further unit distance X _r · operation (total 3X _r
When operated) adds the Y _c / 8 to the parameter value before one when ...... • Total nX _r operation, the parameter values when the operation direction is changed to the previous Y _c / Add 2 ⁿ .

On the other hand, in the DOWN operation, a new parameter value is obtained by subtracting Y _c / 2 from the immediately preceding parameter value when the operation direction is first reversed and the unit distance _{Xr is} first operated. , - further unit distance X _r only engineered (total 2X _r engineered) when subtracts the Y _c / 4 from the parameter value before one further unit distance X _r-operated (total 3X _r the engineered) when subtracting the Y _c / 8 from the parameter value before one, when ...... • total nX _r operation subtracting the Y _c / 2 ⁿ from the parameter value before one.

By performing such calculations, hysteresis can be realized without setting a target value. _{Incidentally, Y c / 2, Y c} / 4, ... etc., the values used for the addition and subtraction may be stored in advance in a table instead of calculating each time. Next, with reference to FIG. 4 again, a characteristic portion of an embodiment of the second musical tone control parameter generating device of the present invention will be described.

Here, the following symbols are used. (X, Y): the current position data X and the current parameter values _{Y (X p, Y p)} : reference value (details will be described _{later) (X q, Y q)} : the target value given in accordance with the operation direction X _c : XX _P X _r : unit distance Now, (X, Y) changes along arrow B shown in FIG.
= In X _p, vendor shall have changed UP operation from DOWN operation. The position data X and parameter values Y of this time, the reference value at this point (X _p, Y _p) and. Thereafter position data X if parameter value when varied from X = X _p + X _r and _{(Y p + Y q) /} 2, the _{(X p + X r, (} Y p + Y q) / 2) and the reference value I do. Reference value (X _p, Y _p) as reference values _{(X p + X r, (} Y
When obtaining the _p + Y _q) / 2) linear equations through, Y = a _{{(Y q -Y p) /} (2 · X r)} · (X-X p) + Y p ... (4). When X _p <X <X _p + X _r , the parameter value Y is obtained by substituting the current position X into the above equation (4). Incidentally, because it is X-X _p = X _c, by modifying the equation (4), Y = seeking _{{(Y q -Y p) /} (2X r)} · X c + Y p ... (5) Place, 0 <a X _c when X _c <X _r (5) may be obtained parameter values Y are substituted into equation.

When X _p + X _r ≦ X (X _r ≦ X _c ), the reference value (X _p + X _r , (Y _p + Y _q )) up to that point is reached.
/ 2) as the new reference value, i.e., the _{X p ← X p + X r} Y p ← (Y p + Y q) / 2, the new reference value (X _p, with respect to Y _p), a new reference The value is obtained, and the same calculation as above is repeated.

When the operation direction changes, a target value after the change is set, and the same calculation is performed. With the configuration in which the reference value is set and the interpolation calculation is performed in this way, a parameter value having hysteresis and smoothly changing according to the operation of the bender can be obtained.

FIG. 5 is a flowchart showing an embodiment of the operation operation process.
It is a low chart. In this flowchart, the present invention
Of the third embodiment of the third musical tone control parameter generating apparatus
The sign part is included. Here, CASE1 to CAS
Four target points of E4 are prepared. CASE1: Maximum value X of position data X_max And then
Parameter value Y_{ma x} X ≧ 0 and UP operation
The corresponding target value (X_max , Y_max CASE2: target value corresponding to X <0 and UP operation
(0,0) CASE3: Target value corresponding to X ≧ 0 and DOWN operation
(0,0) CASE 4: negative maximum value of position data X -X_max And its
Parameter value-Y_max Consisting of X <0 and DO
The target value corresponding to the WN operation (-X_max , -Y _max In the operator operation process shown in FIG. 5, first, the current operation position
The data indicates that the operator operation processing shown in FIG.
Operation position data at the time of being touched, that is, step 5_1
1 and last time X_old Whether or not it is equal to the position data stored in
Is determined. The fact that they are equal means that the vendor
Means that the operation position has not changed.
Return to in-routine. X ≠ X_old When the vendor
Indicates that a new operation has been performed, and proceeds to step 5_2.
No. In step 5_2, XX_{ol d} Whether or not ≧ 0
That is, the vendor has been operated UP or DOWN
Is determined, and in the case of an UP operation, proceed to Step 5_3.
In the case of a DOWN operation, the process proceeds to step 5_13. Less than
Below, the case where it is UP operation is explained first.
If it is determined in step 5_2 that the operation is an UP operation, the
Proceed to step 5_3, and the flag U indicating the UP operation
It is determined whether P is UP = 1 or not. UP = 1
At this time, the flow of the operation of the operator shown in FIG.
This means that the operation was also an UP operation, and UP @ 1
That is, when UP = 0, the previous operation was a DOWN operation
Means that. When the last time was a DOWN operation,
Proceed to step 5_4, where the current position data X is a positive value
It is determined whether there is. If X ≧ 0, step 5
_5, CASE corresponding to X ≧ 0 and UP operation
1 target value (X_max , Y_max ) Is the interpolation curve setting described later.
Is set as the target value for the
You.

On the other hand, if it is determined in step 5_4 that the current position data X satisfies X <0, step 5_6
Then, X <0 and the target value (0, 0) corresponding to the UP operation are set as the target values for setting the interpolation curve.
In step 5_7, the current DOWN operation
In response to the change to the operation, "0" is stored in a flag DOWN indicating that the operation is a DOWN operation, and "1" is stored in a flag UP indicating that the operation is an UP operation.

In step 5_8, the previous DOWN operation
From this time to the UP operation, the current position data
X and the current parameter value Y are equal to the reference value (X_p , Y
_p ), And in step 5_9, the interpolation curve is
Is set (details will be described later), and in step 5_10,
The current position data X is substituted into the interpolation curve, and the
The meter value Y is obtained, and the parameter value Y is output.
You. It should be noted that step 5_9 is performed via step 5_9 described above.
When the process proceeds to step 10, X and Y are set to X in step 5_8. _p , Y
_p In step 5_10, the parameter
Y = Y as the data value_p Will be required.

When the flag UP = 1 in step 5_3, that is, in step 5_2, it is determined that the current operation is the UP operation, and in step 5_3, the previous UP operation is performed.
If it is determined that the operation has been performed, the UP operation is continued, and the process proceeds to step 5_12, and it is determined whether or not the neutral position (position data X = 0). Last time X <
When X is 0 and the UP operation is continued and X = 0, the target value for setting the interpolation curve in step 5_9 is changed from the target value (0, 0) of CASE2 to C
This is because it is necessary to change to the target value of ASE1 (X _max , Y _max ). If it is determined in step 5_12 that the current position is the neutral position (X = 0), the process proceeds to step 5_5, where the target value (X _max , Y _max ) of CASE1 is set.
If it is determined to be (≠ 0), the process directly proceeds to step 5_10, and the current position data X is added to the interpolation curve already set.
Is substituted to obtain the parameter value Y, and the obtained parameter value Y is output.

Next, a case where it is determined in step 5_2 that the operation is a DOWN operation will be described. Since the DOWN operation is the same as the UP operation, the DOWN operation will be described only briefly. If it is determined in step 5_2 that the current operation is a DOWN operation, the process proceeds to step 5_13, and it is determined whether or not the flag DOWN is “1”, that is, whether or not the last time was the DOWN operation. When the previous operation was the UP operation and the current operation is changed to the DOWN operation, the process proceeds to step 5_14, and it is determined whether the current position data X is X ≧ 0 or X <0.
When X ≧ 0, the process proceeds to step 5_15, where X ≧ 0 and D
The target value (0, 0) for the OWN operation is set. On the other hand, if X <0, the process proceeds to step 5_16, where X <0
And the target value (-X _max , -Y
_max ) is selected. In step 5_17, the flag U
'0' is stored in P and '1' is stored in the flag DOWN, and the flow advances to step 5_8. DOW in step 5_13
If N = 1, that is, if the previous DOWN operation was performed (step 5_2) and the current DOWN operation was also performed, the process proceeds to step 5_18, and it is determined whether or not the neutral position (X = 0). . If it is at the neutral position (X = 0), the process proceeds to step 5_16, where X ≧ 0
From the target value (0,0) corresponding to the DOWN operation, X
<0 and the target value for the DOWN operation (-X _{ma x,} -Y
_max ). If it is determined in step 5_18 that the position is not the neutral position (X ≠ 0), step 5_1
The process proceeds to 0, where the current position data X is substituted into the already set interpolation curve to obtain a parameter value Y, and the obtained parameter value Y is output.

FIG. 6 is an explanatory diagram showing an example of a method of setting an interpolation curve in step 5_9 in FIG. Here, as the interpolation curve, the reference values (X _p , Y _p ) set in step 5_8 are set as vertices, and steps 5_5, 5_6,
5_15 or 5_16 (X
_q , Y _q ). The quadratic curve is expressed by _{Y = {(Y q -Y p} ) / (X q -X p) 2} · (X-X p) 2 + Y p ... (6).

In step 5_10, the current position data X is substituted into the equation (5), and the parameter value Y is obtained and output. FIG. 7 is a diagram illustrating a change in the parameter value Y with respect to a change in the position data X when Expression (6) is used as the interpolation curve. When the UP operation is performed starting from X = 0, the target value is set to (X _max , Y _max ), so that the parameter value Y changes along the arrow A,
When the position data X advances to X = _{Xmax and} then starts the DOWN operation, this time advances along the arrow B with (0, 0) as the target value. proceeds X _{ma x,} the Y _max) as a target value, D in the middle
When switching to the OWN operation, along the arrow D, (0, 0)
And set the target value. Although only the region where X ≧ 0 is shown here, the same applies to the region where X <0.

In the above embodiment, the calculation using the quadratic curve is performed. However, the calculation is not limited to the quadratic curve, and the calculation may be performed using a cubic or higher N-order curve. In this case, of the N + 1 parameters defining the Nth order curve, N
The -1 parameters previously fixed as a constant, a variable only two parameters, the reference value (X _p, Y _p) and the target value (X _q, Y _q) if so determined that variable in accordance with the , The same processing as described above is possible. In this case, by allowing the operator to freely set N parameters that are fixed as constants, it is possible to provide the vendor with various characteristics.

In the embodiment of the third musical tone control parameter generating apparatus of the present invention described with reference to FIGS.
Although the target values (X _q , Y _q ) are set and the interpolation curve is set using the target values, the target value is not necessarily set in the third musical tone control parameter generation device of the present invention. It is not necessary, and the hysteresis can be realized without setting the target value, for example, as described below.

Now, when the operation direction of the bender changes from the DOWN operation to the UP operation, the position data X and the parameter value Y at the time of the change are set as reference values (X _p , Y _p ), and Y = a (X −X _p ) ² + Y _p (7) where a is a constant set as a calculation method.

The operation direction of the vendor is changed from UP operation to DOW
When the operation is changed to N, the position data X at the time of the change is changed.
And the parameter value Y as reference values (X _p , Y _p ), and Y = (Y _p / X _p ) · X (8) is set as the calculation method. By doing so, the parameter value at the bender maximum operation position changes depending on the bender's operation path, but the vender is in the neutral position (X =
When returning to (0), the parameter value Y always returns to Y = 0.

FIG. 8 is a diagram showing a change in the parameter value Y with respect to a change in the signal data X when the above equations (7) and (8) are employed. When the UP operation is performed with (X, Y) = (0, 0) as the starting point, the operation proceeds along the quadratic curve obtained by equation (7) along arrow A. Along the straight line determined by equation (8),
Proceeding toward (0, 0) and moving to the UP operation on the way, along the arrow C, on the quadratic curve also obtained by equation (7), and moving to the DOWN operation on the way, the arrow D
Along a straight line passing through the origin (0, 0) obtained by Expression (8) toward (0, 0).

For example, as described above, even in the third tone control parameter generating device of the present invention, the hysteresis may be drawn without setting the target value. FIG. 9 is an explanatory diagram showing another example of a method of setting an interpolation curve in step 5_9 in FIG. Here, FIG.
The interpolation curve as shown in (D) is stored in a table in advance. Then, the interpolation curves of FIGS. 9A to 9D are used depending on whether the target value in step 5_9 is CASE1 to CASE4.
At this time, for example, an interpolation curve corresponding to X ≧ 0 and the UP operation (FIG. 9A) will be described. In the graph shown in FIG. X _s = {X _max / (X _max −X _p )} · (X−X _p ) Read the value Y _s of the point (9), and Y = Y _p + ｛(Y _max −Y _p ) / Y _max ｝ · Y _s (10) may be output as the parameter value Y. CASE2
The same applies to the case value of CASE4.

As shown in this example, an interpolation curve is previously stored in a table, and the table is stored in accordance with a reference value (X _p , Y _p ) set when the operation direction of the bender is reversed. The inserted interpolation curve may be modified and used. In the above description, equation (9), (10)
The equation corresponds to transforming and using the interpolation curve. Note that FIG. 9 shows four interpolation curves. By inverting the interpolation curves or the reading position, 1 is obtained.
It is also possible to use a book interpolation curve.

In any one of the first to third embodiments of the present invention, a mode in which a tone control parameter value is simply output according to the position data of an operator, as in a normal vender,
There is a mode for outputting the tone control parameter value with hysteresis as described above, and either mode may be selected. According to this, it is possible to select whether to perform parameter control using the hysteresis characteristic or to perform normal parameter control in accordance with the position data of the operating element. In this case, the mode may be selected by operating the foot pedal, or when the operation speed of the bender is lower than a predetermined speed, parameter control is performed in accordance with the position data of the operator, and the operation speed is set to the predetermined speed. At higher speeds, the parameter control may be performed using the hysteresis characteristics.

Also, a plurality of output characteristics may be stored in the storage means in association with the timbre, and the output characteristics may be automatically selected based on the selected timbre. According to this, it is possible to realize a hysteresis characteristic suitable for a tone. The output tone control parameter value may be subjected to a secondary digital filter to overshoot the tone control parameter value, or the analog signal from the operator may be subjected to an analog filter so that the tone control parameter value may be overshot. May overshoot.

Further, a data signal for switching the output characteristics of the vender may be stored in advance in the music data of the automatic performance device, and the hysteresis characteristic may change as the music progresses. Further, in the above-described embodiment, a description has been given of a bender having two operation directions.
The tone control parameter may be controlled by an operator having an operation direction equal to or greater than the direction. That is, for example, a bender that can be operated in both the left-right direction and the up-down direction is provided, and the parameter value of one parameter is controlled by the left-right operation, and the parameter value of another parameter is controlled by the up-down operation. It may be controlled.

Further, for example, a vender capable of operating in two directions, left and right, may be used, and the parameter values of a plurality of parameters may be controlled by operating in the left and right directions. At that time, a different hysteresis curve may be adopted for each parameter.

[0053]

As described above, according to the musical tone control parameter generating apparatus of the present invention, a parameter value having hysteresis is generated for the operation of the operating element, and the performance is further intrigued as compared with the related art. A musical tone control parameter generation device is configured.

[Brief description of the drawings]

FIG. 1 is a hardware configuration diagram of an electronic musical instrument common to first to third musical tone control parameter generation devices of the present invention.

FIG. 2 is a schematic flowchart of a main routine executed by a CPU of the musical tone control parameter generation device whose hardware configuration is shown in FIG.

FIG. 3 is a flowchart illustrating an embodiment of an operator operation process.

FIG. 4 is an explanatory diagram of the processing shown in FIG. 3;

FIG. 5 is a flowchart illustrating one form of an operator operation process.

FIG. 6 is an explanatory diagram showing an example of a method for setting an interpolation curve.

FIG. 7 is a diagram showing a change in a parameter value Y with respect to a change in position data X.

FIG. 8 is a diagram showing a change in a parameter value Y with respect to a change in position data X.

FIG. 9 is an explanatory diagram showing another example of a method of setting an interpolation curve.

[Explanation of symbols]

 11 Vendor 12 Keyboard 13 CPU 14 RAM 15 ROM 16 Operation Panel 17 Display 18 Sound Source 19 Bus

Claims (5)

[Claims] 1. An operation device capable of continuously changing an operation position and outputting position data corresponding to the operation position,
A tone control parameter generation device that generates and outputs a parameter value of a tone control parameter based on position data output from the operator, comprising: Detection means for detecting the operation direction, change in the operation direction, and the current operation position; and parameter value generation means for obtaining a parameter value generated in the past, a current operation direction, and a parameter value according to the current operation position. A tone control parameter generation device, comprising: 2. The method according to claim 2, wherein the parameter value generation unit receives the change in the operation direction of the operation element by the detection unit and responds to the operation direction after the operation direction is changed. It has target value setting means for setting a target value consisting of position data and a parameter value obtained when the operation is performed to a predetermined target operation position in front of the operation direction, the parameter value generated in the past, the current operation direction 2. The musical tone control parameter generation device according to claim 1, wherein a target value corresponding to the current sound position and a parameter value corresponding to the current operation position are obtained. 3. An operation device capable of continuously changing an operation position and outputting position data according to the operation position,
A tone control parameter generation device that generates and outputs a parameter value of a tone control parameter based on position data output from the operator, comprising: Detecting means for detecting an operating direction, a change in the operating direction, and a current operating position; and an operating direction after the operating direction is changed in response to the detecting means detecting a change in the operating direction of the operating element. Target value setting means for setting a target value consisting of position data and a parameter value obtained when the operation element is operated to a predetermined target operation position in front of the operation direction in accordance with the operation element; Reference value for detecting a reference value consisting of position data and a parameter value, which is obtained when the operation is performed to the reference operation position in front of the direction and before the target operation position. Output means, corresponding to a past operation position of the operation element, by interpolating between a reference value consisting of position data and a parameter value and the reference value, position data corresponding to the current operation position is obtained. A tone control parameter generation device, comprising: an interpolation unit that converts the parameter into a parameter value. 4. An operation device capable of continuously changing an operation position and outputting position data according to the operation position,
A tone control parameter generation device that generates and outputs a parameter value of a tone control parameter based on position data output from the operator, comprising: Detecting means for detecting the operation direction, the change in the operation direction, and the current operation position, and in response to the change in the operation direction being detected by the detection means, the position data and the parameter value at the time when the operation direction is changed. Calculation method setting means for setting a calculation method for obtaining a parameter value from position data based on a reference value consisting of: and an operation direction after the operation direction has changed, and a calculation method set by the calculation method setting means. And a parameter value generating means for converting the current position data into a parameter value based on the current position data. 5. A target value setting for setting a target value obtained from position data and a parameter value obtained when the operation element is operated to a predetermined target operation position ahead of the operation direction. Means for setting a calculation method for obtaining a parameter value from position data based on the reference value and a target value corresponding to the operation direction after the operation direction has changed. Item 5. The tone control parameter generation device according to Item 4.