JP2002372972A - Parameter controller and parameter control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a parameter controller and a parameter control method enabling a user to freely assign a desired parameter kind and simultaneously controlling two or more kinds of parameters. SOLUTION: The desired parameter kinds are assigned to the X axis and Y axis of a control point CP whose display position (X, Y) is variably set corresponding to the drag operation of a pointing operator 6. When the control point CP displayed on a control window CW is dragged by the pointing operator 6, corresponding to the display position (X, Y) of the control point CP displaced thereby, the parameter values of the parameter kinds respectively allocated to the X axis and Y axis of a screen are generated. Thus, the desired parameter kind is freely assigned and also two or more kinds of the parameters can be simultaneously controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a parameter control device and a parameter control method suitable for use in an electronic musical instrument.

[0002]

2. Description of the Related Art When software for desktop music (hereinafter referred to as DTM) is executed on a personal computer to function as an electronic musical instrument, a musical tone waveform is often generated in accordance with well-known MIDI data. In the process of reproducing the MIDI data, for example, a tone parameter for designating a tone change or a pitch bend amount, a vibrato for periodically varying a pitch, and an effect parameter such as a modulation for varying the depth are controlled by, for example, a display. There is known a mode in which a virtual operator displayed on a screen is moved by a drag operation using a mouse to control parameters.

[0003]

However, in such a parameter control mode, since only a fixed parameter type is normally assigned to a virtual operator displayed on the display screen, the user can freely select a parameter. The desired parameter type cannot be freely assigned to
It is not possible to control multiple parameters at the same time,
There is a problem. Therefore, the present invention has been made in view of the above circumstances, and provides a parameter control device and a parameter control method capable of freely assigning a desired parameter type and simultaneously controlling a plurality of types of parameters. The purpose is.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, for each of a plurality of control points displayed on a screen, a parameter type to be assigned to an X axis and a Y axis of the screen is specified. Parameter assigning means to be set; a control means for designating a desired control point from a plurality of control points displayed on the screen, and displacing the display position (X, Y) of the designated control point; Display position of displaced control point (X, Y)
And a parameter generating means for generating parameter values of parameter types assigned to the X-axis and the Y-axis of the screen, respectively.

According to the second aspect of the present invention, for each of a plurality of control points displayed on the screen, the X-axis and the Y-axis of the screen are displayed.
A parameter assignment process of setting a parameter type to be assigned to an axis, and a displacement process of designating a desired control point from a plurality of control points displayed on a screen and displacing a display position (X, Y) of the designated control point And the display position of the control point displaced in this displacement process (X,
And a parameter generation step of generating parameter values of parameter types respectively assigned to the X-axis and the Y-axis of the screen in correspondence with Y).

According to the third aspect of the present invention, for each of a plurality of control points three-dimensionally displayed on the screen, the X-axis of the screen,
A parameter assigning means for setting a parameter type to be assigned to each of the Y-axis and the Z-axis; and a desired control point is designated from among a plurality of control points displayed three-dimensionally on a screen, and a display position (X, Y, Z), and corresponding to the display position (X, Y, Z) of the control point displaced by the displacement means,
And a parameter generating means for generating parameter values of parameter types respectively assigned to the X axis, Y axis and Z axis of the screen.

According to the present invention, for each of a plurality of control points three-dimensionally displayed on the screen, the X-axis of the screen,
A parameter assignment process of setting parameter types to be assigned to the Y axis and the Z axis, a desired control point from a plurality of three-dimensionally displayed control points on the screen, and a display position (X, Y, Z) and the display positions (X, Y, Z) of the control points displaced in the displacement process are respectively assigned to the X, Y, and Z axes of the screen. And a parameter generating means for generating parameter values of the parameter types.

According to the invention described in claim 5, for each of a plurality of control points displayed on the screen, the X-axis and Y-axis of the screen are displayed.
A parameter assigning means for setting a parameter type to be assigned to an axis, and a relative position between a plurality of control points displayed on the screen are determined in advance, a desired control point is designated from among these control points, and the designated control point is designated. Is displaced, and the display positions (X, Y) of other unspecified control points are also displaced in conjunction with each other so as to maintain a relative position with respect to the displaced control point. Displacement means, and parameter generation means for generating parameter values of parameter types assigned to the X-axis and Y-axis of the screen corresponding to the display position (X, Y) of each control point displaced by the displacement means, respectively. And characterized in that:

According to the present invention, for each of a plurality of control points displayed on the screen, the X-axis and the Y-axis of the screen are displayed.
A parameter assignment process of setting a parameter type to be assigned to an axis and a relative position between a plurality of control points displayed on the screen are determined in advance, a desired control point is designated from among these control points, and the designated control point is designated. Is displaced, and the display positions (X, Y) of other unspecified control points are also displaced in conjunction with each other so as to maintain a relative position with respect to the displaced control point. A parameter generation process for generating a parameter value of a parameter type assigned to the X-axis and the Y-axis of the screen corresponding to the displacement process and the display position (X, Y) of each control point displaced in the displacement process, respectively. And characterized in that:

In the present invention, for each of a plurality of control points displayed on the screen, parameter types to be assigned to the X-axis and Y-axis of the screen are set, and a desired control point is designated from these control points. When the display position (X, Y) of the designated control point is displaced, the parameters respectively assigned to the X-axis and Y-axis of the screen corresponding to the displaced display position (X, Y) of the control point Since the kind of parameter value is generated, the user can freely assign a desired kind of parameter, and can control a plurality of kinds of parameters simultaneously.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A parameter control device according to the present invention includes a DTM device using a personal computer,
It can be applied to ordinary electronic musical instruments. Hereinafter, an example of an electronic musical instrument equipped with a parameter control device according to an embodiment of the present invention will be described with reference to the drawings.

(1) Configuration FIG. 1 is a block diagram showing the overall configuration of an electronic musical instrument according to one embodiment of the present invention. In this figure, reference numeral 1 denotes a CPU for controlling each section of the musical instrument. The CPU 1 generates tone parameters according to MIDI data supplied from the outside,
This is transmitted to a sound source 7 (described later) to generate a musical tone (pronounced /
On the other hand, a tone parameter and an effect parameter to be given to the sound source 7 are controlled in accordance with the operation of the pointing operator 6. The processing operation of the CPU 1 according to the gist of the present invention will be described later in detail.

Reference numeral 2 denotes a ROM in which various control programs and various data tables loaded on the CPU 1 are stored. Reference numeral 3 denotes a RAM having a work area for storing various register / flag data and a buffer area for storing MIDI data serially transferred from the outside.
Reference numeral 4 denotes a MIDI interface which converts MIDI data supplied from an external MIDI instrument in serial form into a CP.
In accordance with the instruction from U1, the data is transferred to the buffer area of the RAM 3 or the MIDI data temporarily stored in the buffer area.
The data is serially transmitted to the outside according to the instruction of the CPU 1.

Reference numeral 5 denotes a display unit constituted by an LCD panel or the like, which displays various screens (windows) indicating the setting state and operation mode of each section of the musical instrument according to a display control signal supplied from the CPU 1. Reference numeral 6 denotes a pointing operator such as a mouse. The pointing operator 6 is used when clicking or dragging an icon, button, or control pointer CP (described later) in a window displayed on the screen of the display unit 5. When the pointing operation element 6 is clicked / dragged, an event corresponding to the operation is supplied to the CPU 1.

Reference numeral 7 denotes a sound source configured by a waveform memory reading method. The tone generator 7 has a waveform memory in which waveform data of various timbres is stored, reads out the waveform data of the corresponding timbre from the waveform memory and synthesizes the musical tone in accordance with the musical tone parameters supplied from the CPU 1, and generates the musical tone generated thereby. The waveform W is output to the next sound system 8. In the sound system 8, after converting the tone waveform W in digital signal format output from the sound source 7 into an analog tone signal, the tone signal is amplified or filtered to remove unnecessary noise and the like, and the sound is emitted from the speaker. Let it.

(2) Operation Next, the operation of the embodiment will be described with reference to FIGS. When power is supplied to the embodiment having the above configuration, C
The PU 1 reads out a predetermined control program from the ROM 2, loads it into itself, and executes the main routine shown in FIG. When the main routine is executed, the CPU 1 proceeds with the process to step SA1 and performs initialization for resetting various registers and flags stored in the work area of the RAM 3 and setting initial values. In step SA1, the sound source 7 is instructed to initialize various registers and flags. When the initialization is completed, the CPU 1 proceeds to step SA2,
Execute the parameter setting processing routine.

When the parameter setting processing routine is executed, the CPU 1 advances the processing to step SB1 in FIG. 3 to determine whether or not there is a setting event. The setting event occurs when a setting icon displayed on a menu screen (not shown) is clicked with the pointing operator 6. Therefore, if the setting icon on the menu screen (not shown) is not clicked, the determination result is “NO”, and this routine is completed without performing any processing. The result of the determination is "YES", and the process proceeds to the next step SB2.

In step SB2, a parameter assignment screen PA is generated and displayed on the display unit 5. The parameter assignment screen PA includes display areas E1 to E3 for setting parameter types to be assigned to each of the control points CP1 to CP3 as in the example shown in FIG. In each of the display areas E1 to E3, setting fields F1 and F2 for setting parameter types to be assigned to the X axis and the Y axis.
Is provided. In these setting fields F1 and F2, a plurality of assignable parameters are displayed in a list in accordance with a click operation of a list button LB provided at the right end thereof. The entered parameter type is entered in the field, whereby the control points CP1 to CP
The parameter type to be assigned is set for each of the X and Y axes of No. 3.

By the way, the control point CP1 referred to here
To CP3 are control windows CW to be described later.
The mark is displayed inside (see FIG. 5), and its display position (X, Y) is variably set in accordance with the drag operation of the pointing operator 6. Therefore,
In the parameter assignment screen PA, for the control points CP1 to CP3 whose display positions (X, Y) are variably set in the control window CW, what kind of parameter is assigned to the X and Y axes is determined. is there. The parameter assignment screen PA is provided with an icon OK that is clicked when the setting is completed, and an icon CAN that cancels the setting.

Next, when the flow proceeds to step SB3, an icon event occurring in response to a click operation is determined. That is, when the icon CAN is clicked to cancel the setting on the parameter assignment screen PA, this routine is completed without performing any processing. On the other hand, when the icon OK is clicked, the process proceeds to the next step SB4, where the display area E
The control window CW is displayed on the display unit 5 according to the parameter types set in the setting fields F1 and F2 of 1 to E3, that is, the parameter types assigned to the X and Y axes of the control points CP1 to CP3.

The control window CW is a screen displayed on the display unit 5, and as shown in FIG.
The control points CP1 to CP3 set on the parameter assignment screen PA are displayed by rectangular coordinates composed of an X axis and a Y axis. At the beginning of the setting, the coordinate positions (X, Y) of the control points CP1 to CP3 are determined according to a predetermined initial value. When corresponding to the example of the parameter assignment screen PA shown in FIG. 4, in the control window CW, modulation (bubillate depth) is assigned to the X axis of the control point CP1 and pitch vent is assigned to the Y axis. Reverb on the axis,
Chorus is assigned to Y axis, and control point C
The cutoff frequency is assigned to the X axis of P3, and the resonance frequency is assigned to the Y axis.

When the parameter setting processing routine is completed, the CPU 1 advances the processing to step SA3 of the main routine shown in FIG.
A tone parameter corresponding to the IDI data is generated and transmitted to the tone generator 7 to control tone generation (sound generation / silence).
An IDI playback process is performed. The CPU 1 executes the interrupt processing shown in FIG. 6 in parallel with the MIDI reproduction processing. That is, when the interrupt processing shown in FIG. 6 is executed by a timer interrupt at predetermined intervals, the CPU 1 advances the processing to step SC1 to determine whether or not the pointer movement has occurred in the above-described control window CW. It is determined whether any of the points CP1 to CP3 has been dragged and the coordinate position (X, Y) has been displaced accordingly.

The drag operation referred to here is the control point C displayed in the control window CW.
This refers to an operation of moving the mouse cursor to any one of P1 to CP3, pressing the left button of the mouse (pointing operator 6), and moving the mouse cursor in that state. The display position of the control point CP pointed by the mouse cursor is displaced with the drag operation.

If the pointer does not move, that is, if there is no dragged control point CP, the determination result is "NO", and this routine is completed without performing any processing. If there is, the determination result is "YES" and the next step SC2
Then, the displaced X-axis coordinate value is converted into the parameter value of the corresponding parameter type, and in the subsequent step SC3, similarly, the displaced Y-axis coordinate value is converted into the parameter value of the corresponding parameter type. . In step SC4, the updated parameter values are sent to the tone generator 7, and the tone generated in the above-described MIDI playback process is modified according to the updated parameter values.

Therefore, for example, when the control point CP1 is dragged obliquely upward or downward in the control window CW, the modulation value assigned to the X axis and the pitch vent value assigned to the Y axis Changes simultaneously according to the amount of movement of the drag, and the tone being reproduced is modified accordingly. When the control point CP2 is similarly dragged, the reverb and chorus imparted to the musical tone being reproduced are simultaneously adjusted, and when the control point CP3 is similarly dragged, the filtering for forming the reproduced musical tone in the sound source 7 is performed. The tone color is controlled by changing the cutoff frequency and the resonance frequency in the process.

As described above, according to the present embodiment, the display position (X,
X axis and Y of control point CP at which Y) is variably set
When a desired parameter type is assigned to the axis and the control point CP displayed in the control window CW is dragged with the pointing operator 6, the display position (X, Y) of the control point CP displaced by the dragging operation The parameter values of the parameter types respectively assigned to the X-axis and the Y-axis of the screen are generated in correspondence with the above, so that a desired parameter type can be freely assigned and a plurality of types of parameters can be simultaneously controlled. Become.

In the above-described embodiment, the parameter values respectively assigned to the X-axis and the Y-axis are simultaneously controlled in accordance with the display position (X, Y) of the control point CP. The gist is not limited to the parameter control based on such two-dimensional coordinate values. For example, the control points CP are three-dimensionally displayed in the control window CW using, for example, an orthogonal three-axis coordinate system, and the display positions (X, Y) are displayed. , Z), the parameter values respectively assigned to the X axis, the Y axis, and the Z axis may be controlled. In this way, three types of parameter values can be controlled simultaneously.

In this embodiment, the control points CP1 to CP3 displayed in the control window CW are parameter-controlled independently of each other. Instead, the control points CP1 to CP3 are linked. An aspect in which parameter control is performed is also possible. That is, the relative position between each of the control points CP1 to CP3 is determined in advance, and when any of these control points CP1 to CP3 is dragged, the dragged control point C
While maintaining the relative position with respect to P, the other undragged control points CP are also displaced in conjunction with each other. By doing so, moving only one control point causes the other control points to be displaced in conjunction with it, so that a plurality of parameters can be variably set at once.

[0029]

According to the first and second aspects of the present invention, for each of a plurality of control points displayed on a screen, the X of the screen is displayed.
When a parameter type to be assigned to the axis and the Y axis is set, a desired control point is designated from among these control points, and the display position (X, Y) of the designated control point is displaced. Since the parameter values of the parameter types assigned to the X-axis and Y-axis of the screen are generated in accordance with the display positions (X, Y) of the points, desired parameter types can be freely assigned, and a plurality of types can be assigned. Parameters can be controlled simultaneously. According to the third and fourth aspects of the present invention, for each of a plurality of control points three-dimensionally displayed on the screen, the X-axis of the screen,
A parameter type to be assigned to each of the Y axis and the Z axis is set, a desired control point is designated from among these control points, and a display position (X,
When Y, Z) is displaced, the X axis of the screen, Y corresponding to the display position (X, Y, Z) of the displaced control point
Since the parameter values of the parameter types respectively assigned to the axis and the Z axis are generated, three types of parameter values can be simultaneously controlled only by displacing one control point. According to the fifth and sixth aspects of the present invention, for each of a plurality of control points displayed on a screen, a parameter type to be assigned to the X-axis and the Y-axis of the screen is set, and a plurality of controls displayed on the screen are further set. When the relative position between the points is determined in advance, and the display position (X, Y) of the desired control point is displaced from among these control points, other positions are maintained so as to maintain the relative position with the displaced control point. The display positions (X, Y) of the control points not designated are also displaced in conjunction with each other, and the X-axis and Y-axis of the screen correspond to the display positions (X, Y) of the displaced control points, respectively. Since the parameter values of the parameter types assigned to are generated, the movement of one control point also causes the other control points to be displaced in conjunction with each other, so that a plurality of types of parameters can be controlled simultaneously.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment according to the present invention.

FIG. 2 is a flowchart showing the operation of a main routine.

FIG. 3 is a flowchart showing an operation of a parameter setting processing routine.

FIG. 4 is a diagram showing an example of a parameter assignment screen PA.

FIG. 5 is a diagram illustrating an example of a control window CW.

FIG. 6 is a flowchart showing an operation of an interrupt processing routine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 ROM 3 RAM 4 MIDI interface 5 Display part 6 Pointing operator 7 Sound source 8 Sound system

Claims (6)

[Claims] 1. A parameter assigning means for setting, for each of a plurality of control points displayed on a screen, a parameter type to be assigned to an X-axis and a Y-axis of the screen, a desired one of a plurality of control points displayed on the screen. And a displacing means for designating a control point of (c) and displacing the display position (X, Y) of the designated control point. Corresponding to the display position (X, Y) of the control point displaced by the displacing means, A parameter generating means for generating parameter values of parameter types respectively assigned to the X axis and the Y axis. 2. A parameter assigning step of setting a parameter type to be assigned to an X axis and a Y axis of the screen for each of a plurality of control points displayed on the screen, and selecting a desired one of the plurality of control points displayed on the screen. A display process corresponding to the displacement process of designating the control point of the designated control point and displacing the display position (X, Y) of the designated control point, and the display position (X, Y) of the control point displaced in the displacement process A parameter generation step of generating parameter values of parameter types respectively assigned to the X axis and the Y axis. 3. A parameter assigning means for setting, for each of a plurality of control points three-dimensionally displayed on a screen, parameter types to be respectively assigned to the X-axis, Y-axis and Z-axis of the screen, and three-dimensionally displayed on the screen. A displacement means for designating a desired control point from a plurality of control points and displacing a display position (X, Y, Z) of the designated control point; and a display position (X) of the control point displaced by the displacement means. , Y, Z) corresponding to X, Y, and Z axes of the screen. 4. A parameter assignment process for setting, for each of a plurality of control points three-dimensionally displayed on a screen, parameter types to be respectively assigned to the X-axis, Y-axis and Z-axis of the screen, and three-dimensionally displayed on the screen. A displacement process of designating a desired control point from a plurality of control points and displacing the display position (X, Y, Z) of the designated control point, and a display position of the control point displaced in the displacement process ( X, Y, Z) corresponding to the X axis, Y axis and Z
A parameter generating means for generating a parameter value of a parameter type assigned to each axis. 5. A parameter assigning means for setting, for each of a plurality of control points displayed on a screen, a parameter type to be assigned to an X axis and a Y axis of the screen, a relative position between the plurality of control points displayed on the screen Is determined in advance, a desired control point is designated from these control points, the display position (X, Y) of the designated control point is displaced, and the relative position with respect to the displaced control point is maintained. The displacement means for displacing the display positions (X, Y) of other unspecified control points in conjunction therewith, and the display positions (X, Y) of the control points displaced by the displacement means, respectively. Parameter generation means for generating parameter values of parameter types assigned to the X-axis and Y-axis of the screen. Apparatus. 6. A parameter assignment process for setting a parameter type to be assigned to an X axis and a Y axis of the screen for each of a plurality of control points displayed on the screen, and a relative position between the plurality of control points displayed on the screen. Is determined in advance, a desired control point is designated from these control points, the display position (X, Y) of the designated control point is displaced, and the relative position with respect to the displaced control point is maintained. In addition, the display process (X, Y) of the other unspecified control points is also displaced in conjunction with the display process, and the display positions (X, Y) of the respective control points displaced in this displacement process are corresponded respectively. And generating a parameter value of a parameter type assigned to the X-axis and the Y-axis of the screen.