JPH09269780A - Parameter controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To output a musical parameter corresponding to a boundary to a sound source without missing even when an operational means to which a different musical parameter is defined every divided area is displaced at a high speed. SOLUTION: This controller is provided with an operation element to which different musical parameter is defined every divided area, an operation element part 11 detecting the displaced position in a prescribed area of the operation element every fixed time, a sound source part 34 controlling a musical sound signal to be generated by receiving the musical parameter and a CPU 30. When the CPU 30 detects that the operation element is displaced from an arbitrary divided area to the boundary between the arbitrary divided area and other divided area or other area by a detected displaced position, the CPU 30 judges whether the musical parameter defined to the arbitrary divided area in the boundary is applied to the sound source 34 or not and when the parameter is not applied to the source, the CPU 30 applies the musical parameter which is not yet applied to the sound source 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parameter control device for setting a tone parameter for controlling a tone.

[0002]

2. Description of the Related Art There is a parameter control device for setting a musical tone parameter by an operator having a central resetting property. Among such parameter control devices, there is one in which a region in which an operator is displaced is divided into two with a central position as a boundary, and different types of tone parameters are defined for each divided region. For example, in a manipulator that continuously displaces from a position of "0" that is one end to a position of "100" that is the other end, the regions of "0" to "49" have acoustic effects depending on the displacement position. The tone parameter of the modulation information for controlling the volume information is defined, and the region of "51" to "100" defines the tone parameter of the volume information for controlling the volume according to the displacement position. When the displacement position is "50", that is, the central position (boundary position), conversion processing of modulation information and volume information is performed. Therefore, one operator can control two types of parameters.

[0003]

Generally, when detecting the displacement position of an operator, the displacement position of the operator is detected at a fixed time, for example, at a time interval of the main loop of the CPU. Therefore, when performing an operation of displacing from one area to the other area at high speed across the boundary, the conventional parameter control device cannot detect the displacement position of the boundary of the original area, and the corresponding boundary is not detected. There is a problem that the tone parameter of the area after the displacement is output in the state where the tone parameter in is omitted. An object of the present invention is to output a tone parameter corresponding to the boundary of each divided area to a sound source even when the displacing area is divided and the operating means in which different tone parameters are defined for each divided area are moved at high speed. To do so.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided an operating means for displacing a predetermined area in accordance with an operation, wherein the predetermined area is divided into a plurality of divided areas, and different tone parameters are defined for each of the operation means. The position detecting means for detecting the displacement position of the operating means in a predetermined area for each time, the sound source means for controlling the tone signal generated by receiving the tone parameter, and the displacement position detected by the position detecting means make the operating means optional. When it is detected that the divided area of the above is displaced to the boundary between any divided area and another divided area or to another area, it is determined whether the tone parameter defined in the divided area at the boundary is given to the sound source means. If it is determined and not given, the control means for giving the tone parameter not given to the tone generator means is provided. With the above configuration, the present invention is, when the displacement of the operating means at the boundary of the region before displacement is detected in the case of displacement across the boundaries of a plurality of divided regions in which different musical tone parameters are defined, Assuming that the displacement position has been detected, a tone parameter corresponding to the displacement position is given to the sound source means.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment in which the parameter control device of the present invention is applied to a synthesizer will be described. As shown in FIG. 1, the operation unit of the synthesizer is a keyboard unit 1 for inputting pitch information.
In addition to 0, an operator portion (operating means) 11 that is displaced in accordance with a rotating operation is provided so as to project from the opening 12. As shown in FIG. 2, the manipulator portion 11 is provided with a semi-disk shaped manipulator 20 protruding from the opening 12 so as to rotate about a shaft 21 thereof. Further, a spring (center returning means) 22 is wound around the shaft 21, and in the neutral state where the operation is released, the center mark 23 formed at the center of the circumferential side surface of the operator 20 is located at the uppermost position. Is urged to. That is, it is urged so as to have a central returning property. Furthermore, a rotary type sliding resistor 2
4 is attached in a state of being directly connected to the shaft 21, and slides in synchronization with the displacement angle of the rotating operator 20.

Although not shown in the figure, a fixed voltage is applied to the fixed terminal of the sliding resistor 24, and the divided voltage of the movable terminal (sliding terminal) changes according to the sliding position. That is, the sliding resistor 24 is position detecting means for detecting the displacement position of the operating element 20, and the voltage value corresponding to the displacement position of the operating element 20 is obtained from the sliding resistor 24. In this case, the musical tone parameter to be set differs depending on which direction the manipulator 20 is rotated. When the center mark 23 rotates in the left area of the drawing, the parameter of the modulation information is set, and when it rotates in the right area of the drawing, the parameter of the volume information is set. When the operation is canceled and the center is restored, the center mark 23 becomes the boundary between these two areas. Now, the position information of the manipulator 20 is set to an integer value in the range of "0" to "100", and "0" to
Values in the range of “49” represent modulation information,
A value in the range of “51” to “100” represents volume information, and a value of “50”, which is a boundary between two areas, represents a displacement position common to modulation information and volume information.

FIG. 3 is a block diagram showing a system of a parameter control device in this synthesizer. CP
U30 is a control means for controlling this device, a program RO
M31 is a ROM that stores the operation program of the CPU 30
It is. The work RAM 32 is necessary for various data input from the keyboard section 10 and the like, position detection information indicating a displacement position input from the operation section 11 and converted into a digital signal by the A / D conversion circuit 33, and other operations for the CPU 30. It is a storage means for temporarily storing the flag. The sound source 34 receives a musical tone generation command from the CPU 30 and generates a musical tone signal, and the sounding circuit 35 receives the musical tone signal and produces a sound. The data ROM 36 is a storage unit that stores initialization data and also stores a table of tone parameters corresponding to the position detection information of the manipulator unit 20.

Next, the operation of this embodiment will be described with reference to FIGS. FIG. 4 is a main flow showing the operation of the CPU 30. When the power of the synthesizer is turned on, first the initialization process is performed (step S
1). In the initialization processing, as shown in FIG. 5, the work RAM 32 is initialized (step S11) and the sound source 34 is initialized (step S12). After the initialization processing in the main flow of FIG. 4, keyboard processing (step S2), operator processing (step S3), sound source control processing (step S4), and other processing (step S5)
Is repeatedly executed.

FIG. 6 is a flow chart of a keyboard processing subroutine. In this process, keyboard scanning is performed (step S2
1) It is determined whether or not the keyboard state has changed (step S22). If there is no change, the process returns to the main flow, but if there is a change, it is determined whether the change is due to key depression or key release (step S23). If the change is due to a key depression, a tone generation channel assignment process is performed (step S24). In this process, as shown in FIG. 7, a free sounding channel is searched for (step S25), and a pitch corresponding to the key number pressed in the corresponding sounding channel is set (step S2).
6). Then, the sound source 34 is instructed to start the sound generation of the corresponding sound generation channel (step S27), and the operation process of the main flow of FIG. 4 is performed. On the other hand, step S24
If the change determined in step 4 is due to the release of the key, the mute processing is performed (step S28). In this process, as shown in FIG. 8, a tone generation channel in which the pitch corresponding to the released key number is set is searched (step S2).
9) Then, the corresponding sounding channel is set to an idle state (step S30). Then, the sound source 34 is subjected to the muffling process of the corresponding sounding channel (step S31).
Move to the manipulator process of the main flow of.

FIG. 9 shows the flow of the subroutine of the operator processing of the main flow. In step S41, the position detection signal indicating the displacement position of the manipulator 20 input from the manipulator unit 11 is A / D converted to obtain the displacement position information ADVALUE of the digital signal. Next, this input value ADV
Displacement position information ADCENTER at the border
It is determined whether it is the same as "50" (step S4).
2). If they are the same, it is determined whether or not the value of the last modulation information stored in the register LASTMODVALUE of the work RAM 32 and the value of the modulation information corresponding to the boundary, MODCENTER, are the same (step S43). If they are the same, it is determined whether or not the value of the last volume information stored in the register LASTVOLVALUE and the value of VOLCENTER, which is the value of the volume information at the boundary, are the same (step S44). If they are the same, since the modulation information and the volume information at the boundary are stored in each register of the work RAM 32 without omission, this operator processing is terminated and the process returns to the main flow of FIG.

In step S43, the register LAS
If the value of TMODVALUE is not the same as MODCENTER, the modulation information at the boundary is missing, so the register LASTMODVALUE
The MODENTER obtained from the data ROM 36 is set in the register (step S45), and the register LASTMODVAL is set.
The value of UE is instructed to the sound source 34 as the modulation information (step S46). On the other hand, in step S44, the value of the register LASTMODVALUE and the MODC
If it is not the same as ENTER, the volume information at the boundary is missing, so the register LASTVO
VOLCEN obtained from data ROM 36 in LVALUE
Set TER (step S47), register LAST
The sound source 34 with the value of VOLVALUE as volume information
(Step S48).

In step S42, the input value ADVA
If LUE is not the same as ADCENTER "50" at the boundary, the input value ADVALUE is ADCENT
It is determined whether or not it is smaller than ER “50” (step S
49). When ADVALUE is smaller than ADCENTER, that is, the input value ADVALUE is "0" to "4".
9 "and the center mark 23 is in the area of the modulation information, the register LASTVOLVA
It is determined whether the value of LUE is the same as VOLCENTER (step S50). If they are the same, the volume information at the boundary is not missing, so the value of the modulation information corresponding to the input value ADVALUE is obtained from the data ROM 36, and the register LASTMODV is obtained.
Set to ALUE (step S51) and register LAS
The value of TMODVALUE is instructed to the sound source 34 as the modulation information (step S46). Step S5
At 0, if the value of the register LASTVOLVALUE is not the same as VOLCENTER, the volume information at the boundary is missing, so the register LAS
VOL obtained from the data ROM 36 in TVOLVALUE
Set CENTER (step S47), register L
The sound source 34 is instructed to use the value of ASTVOLVALUE as volume information (step S48).

In step S49, the input value ADVA
If LUE is not less than ADCENTER "50", that is, the input value ADVALUE is ADCENTER
When it is larger than “50”, the input value ADVALUE is “51” to “100”, and the center mark 23 is in the volume information area. In this case, register L
It is determined whether or not the value of ASTMODVALUE is the same as MODENTER (step S52). If they are the same, since the modulation information at the boundary is not missing, the value of the volume information corresponding to the input value ADVALUE is obtained from the data ROM 36 and set in the register LASTVOLVALUE (step S5).
3) Instructing the sound source 34 of the value of the register LASTVOLVALUE as volume information (step S4)
8). In step S52, the register LASTMO
If the value of DVALUE is not the same as the value of MODCENTER, the modulation information at the boundary is missing. Therefore, the MODENTER obtained from the data ROM 36 is set in the register LASTMODVALUE (step S45), and the value of the register LASTMODVALUE is used as the modulation information 34. (Step S46).

After the operator processing, the sound source control processing of the main flow of FIG. 4 is executed. FIG. 10 shows a flow of a subroutine of the sound source control process. In this processing, it is determined whether or not the sounding channel to be processed is in the empty state (step S61). If it is not in the empty state, that is, if it is a sounding channel, the sound set in the sounding channel is determined. The tone generator 34 is instructed to use the high pitch as the tone pitch (step S62). After instructing the sound source 34, or step S
If the sound channel is empty at 61,
That is, if the channel is not sounding, step S
In step 63, it is determined whether or not all channels have been processed. If the processing has not been performed for all channels, the process proceeds to the next tone generation channel to be processed (step S64), and steps S61 to S6.
Each processing up to 4 is repeatedly executed. When it is determined in step S63 that the processing for all the sound generation channels has been completed, the processing shifts to other processing in the main flow of FIG.

As described above, according to the above embodiment, when the operator 20 is displaced from one area of the modulation information or the volume information to the other area, 2
Modulation information or volume information corresponding to the boundaries of two areas is stored in the work RAM 32, and the sound source 3
4 is determined. If not given, the modulation information or volume information corresponding to the boundary is read from the data ROM 36, stored in the work RAM 32, and given to the sound source 34. Therefore, even when the operator 20 is operated at high speed, the modulation information or volume information corresponding to the boundaries of the divided areas can be output to the sound source 34.

In the above embodiment, the input value ADVA
Although the value of the modulation information and the value of the volume information corresponding to the LUE are obtained from the table stored in the data ROM 36, the function of the value of the modulation information and the value of the volume information with respect to the displacement position incorporated in the program of the program ROM 31 is calculated. It may be used and calculated by calculation processing.

In the above embodiment, the musical tone parameters to be controlled are the modulation information and the volume information, but musical tone parameters such as tone color and pitch may be controlled.

Further, in the above embodiment, the region in which the manipulator 20 is displaced is divided into two, but it may be divided into three or more and different musical tone parameters may be defined in each divided region. .

[0019]

According to the present invention, when displacement is made across the boundaries of a plurality of divided areas in which different musical tone parameters are defined, detection of the displacement position of the operating means at the boundaries of the areas before displacement is omitted. At this time, it is assumed that the displacement position is detected, and the tone parameter corresponding to the displacement position is given to the sound source means. Therefore, even when the operation means in which the displacement area is divided and different tone parameters are defined for each divided area is displaced at high speed, the tone parameter corresponding to the displacement position of the boundary of each divided area can be output to the sound source.

[Brief description of drawings]

FIG. 1 is a plan view of an operation unit of a synthesizer according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a structure of an operator section in FIG.

FIG. 3 is a block diagram showing a system of a parameter control device in the embodiment.

FIG. 4 is a main flowchart showing the operation of the CPU in FIG.

5 is a flowchart of the initialization process in FIG.

FIG. 6 is a flowchart of keyboard processing in FIG.

FIG. 7 is a flowchart of a tone generation channel assignment process in FIG.

8 is a flowchart of the muffling process in FIG.

9 is a flowchart of manipulator processing in FIG.

10 is a flowchart of a sound source control process in FIG.

[Explanation of symbols]

 11 Operator part 30 CPU 32 Work RAM 34 Sound source 35 Sounding circuit 36 Data ROM

Claims (4)

[Claims] 1. An operating means which is displaced within a predetermined area in response to an operation, and in which the predetermined area is divided into a plurality of divided areas, and different musical tone parameters are defined for each divided area; Position detection means for detecting a displacement position in a predetermined region, sound source means for controlling a tone signal generated by receiving the tone parameter, and by the displacement position detected by the position detection means,
When it is detected that the operation means is displaced from an arbitrary divided area to a boundary between the arbitrary area and another divided area or the other area, a musical tone parameter defined in the arbitrary divided area at the boundary is detected. Is supplied to the sound source means, and if not, a control means for supplying the sound source means with a tone parameter that has not been supplied, the parameter control device. 2. A storage means for storing a musical tone parameter corresponding to a displacement position of the operating means for each divided area, wherein the control means reads out the non-given musical tone parameter from the storage means. The parameter control device according to claim 1, wherein the parameter control device is provided to the sound source means. 3. The control means has a computing means for computing a musical tone parameter corresponding to a displacement position of the operating means for each divided area, and the non-given musical tone parameter is calculated by the computing means. The parameter control device according to claim 1, wherein the parameter control device is provided to the sound source means. 4. The manipulating means for displacing a first region defined by a tone parameter of modulation information and a second region defined by a tone parameter of volume information in response to an operation, and an operation canceling unit. 4. The parameter control device according to claim 1, further comprising a central return means for returning the operation element to a boundary between the first and second regions.