JPS6275497A - Keyboard splitter for electronic musical instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is capable of generating musical tones of a plurality of tones, and can generate musical tones of each tone in each area obtained by dividing the keyboard. This article concerns a keyboard split device 91 for an electronic musical instrument.

[Technical background of the invention]

BACKGROUND ART Various types of electronic musical instruments have been developed that have a function of dividing the keyboard of an electronic musical instrument into areas and generating musical tones of desired tones from each area.

The applicant had previously filed a patent application for this type of electronic musical instrument in 1982-167.
It is proposed as No. 120.

By the way, in this conventional technique #1, the split position of the keyboard is clearly indicated by displaying note names, numerical values, etc., but it is difficult to intuitively understand the area for each tone, and It had the disadvantage that it was difficult to understand the mutual relationship between each area of musical tones of multiple tones.

[Purpose of the invention]

This invention was made in view of the above points, and
To provide a keyboard splitting device for an electronic musical instrument, which allows the relationship between each area and timbre, which cannot be obtained by dividing the keyboard, to be easily determined and visually confirmed.

[Key points of the invention]

In order to achieve the above object, the present invention graphically displays the relationship between each area and the tone color obtained by dividing the keyboard using a display device, and also allows editing of the range of each area by changing the graphic. The main point is to make it easy to do.

[Structure of the invention]

FIG. 1 is a diagram showing the configuration of the present invention, and reference numeral 1 denotes a cursor indicating means, which specifies the cursor position on a display device [10, which will be described later. A coordinate input device such as a digitizer can be used.

Reference numeral 2 denotes a cursor position detecting means for detecting the cursor position designated by the operation of the cursor indicating means 1, and the output of this cursor position arm detecting means 2 and the following means 3
, the information read from the storage means 4 and the information converted by the cursor position conversion means 5 as cursor position information (i.e., screen position information of the display device 10-1) is compared to the comparison means 6.
are compared.

That is, the comparing means 6 compares the information '@ (for example, the information of a diagram showing a rectangle) specifying each area stored in the storage means 4 in advance with the cursor position information specified by the cursor indicating means 1. It turns out.

If the comparison means 6 detects that the cursor position information is approximately the same as the specific part of the position information set in advance in the storage means 4, then the area will be changed. Therefore, according to the cursor instruction of the cursor instruction means 1, the parameter n obtained by the position inverse conversion means 7 is stored in the storage means 4 in the writing means 8.
This will lead to further development.

Then, the output of the storage means 4 is converted into display information by the display conversion means 9 and displayed on the display device 10. Display device 1
0 is used by ORT, etc. Furthermore, the contents of the storage means 4 will be used in the actual performance, and the storage means 4 and the main body of the electronic musical instrument will be connected.

Therefore, by operating the cursor indicating means 1, the operator can freely change the parameters that are set in advance in the storage means 4 to determine the area of each tone, and each area can be changed as desired by the operator.
By displaying each scale on the horizontal axis of the screen and the key touches of six keys on the horizontal axis, it is possible to make the operator more easily familiar with each set area.

More specific configurations and features of the present invention will become clear from the examples described below.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5.

FIG. 2 shows the circuit configuration of this embodiment, and various controls are performed by an 0PUI m consisting of a microprocessor or the like.

That is, the 0PU 11 inputs designation information from the cursor instruction means 1 and stores it in the internal work register 12.

This work register 12 includes, in addition to an X register and a y register that store the current cursor position, a kwh register that stores the upper limit of the key range (scale), an hwl register that stores the lower limit, and - Force range (key touch)
The kvh register stores the upper limit of , and the k register stores the lower limit of
A vL register, a timbre number register used for processing to be described later, etc. are provided.

The 0PUI 1 connects with the external storage unit 13 and sends and receives data, and also sends display data to the video RAM (VRAM) 14 for displaying on the display device 10.

Furthermore, this 0PU 11 is connected to the main body of the electronic musical instrument, and information regarding the designated area is supplied to the main body of the electronic i-device.

Next, the operation centered on this 0PUII will be explained with reference to the flowchart in FIG.

First, in step 81, each register and display state are initialized. Next, in step 8g, the cursor position specified by the cursor instruction means 1 is cleared and set in the x and y registers in the work register 12.

Then, in step S3, the timbre number register is initialized to specify the first timbre.

Then, in the next step S4, the kwh register, wL register, kvh register, k
The key range parameters (-tone range parameters and key force range parameters are collectively referred to as key range parameters) recorded in the vt register are converted into the parameters on the screen. Then, in step Ssl, a corresponding rectangle is drawn on the screen of the display device 10 using the screen parameters.

Next, in step S6, it is determined whether or not the cursor switch provided in the cursor instruction means 1 is in the on state. If NO, the process proceeds to step S1, and the contents of the tone number register are changed to +]. Proceeding to step S8, it is determined whether all processing up to the last tone has been completed. If No, the process returns to step S2, and steps 82 to S8 are similarly executed for each tone, and finally step S9 and enters a standby state until the cursor switch is turned on.

By the way, if you have not yet specified in which key range each tone should be output, use the pick-up point l on the left side of the screen.
There will be areas for each tone. Tsumari, k
wh , Awl , kvh , and kvl all take the same value, but now, by repeating the various processes described later, the three tones (BOM, HORag, VIO
c177 of each of LIN) has been determined at the position shown in FIG. 4, and its display is as shown in step S41
Assume that this is done by processing g.

Now, regarding the third tone (VIOLIN), changing its position or size will be explained. As shown in Figure 4, each register glaze, kt
Assume that the contents of ut, kvh, and kvlt have been determined.

Then, move the cursor and the two coordinates will be in register k.
If the force-sor switch is turned on when the value is approximately the same as the value of vh, a judgment is made at step ss□, and the process proceeds to step 811, and as the cursor moves, the left end of the area The point is fixed, and the process is performed by changing the degree. That is, as shown in FIG. 5, the lower limit of the key range determined by registers kwL and hvh and the upper limit of the key force range are fixed, and the upper limit of the key range and the lower limit of the key force range are changed. Perform processing.

That is, in step Slz, the cursor position (J.

y) is set in the kwh register and kvL register.Proceeds to step 81s, inversely converts the screen parameters into key range parameters, and stores them in the storage unit 13.Proceeds to step 814, where the current screen parameters are stored. to draw a square.

Then, in step 81g, the cursor position is read again from the operating position of the cursor pointing means 1, and in step 81g, it is determined whether the cursor switch is maintained in the on state.

Then, 0 indicates that the cursor switch is on.
When PUI 1 detects the detection, the process returns to step S11 and repeats the process from step S] x to 8 s.
As the cursor pointing means 1 moves slowly, the rectangular display of the area is changed.

Then, when the cursor is moved to a certain position and the cursor switch is turned off, it is turned off at step F4ss.
Determined as F, step 81? The process proceeds to step S7, presets the X register with a value (special code) rl13RROR1 that does not appear on the screen, and returns to step S7.

Therefore, the areas corresponding to all the tones are displayed by repeating steps 5z-8s, and then, in step S@, the process enters a standby state.

Similarly, a case will be described in which the cursor switch is in the on state when the cursor pointing means 1 is moved and the xPM mark of the cursor takes approximately the same value as the value of the register kwL.

That is, in that case, ygs is determined in step 81g, and the process proceeds to step 819. That is, in the process described below, as the cursor moves, the leftmost point of the area moves. FIG. 5 (B3 shows such a state).

That is, in step S19, the rectangular display drawn with the current screen parameters is erased, and then in step 820, the kwh
Rewrite the contents of the kvl register as follows.

kruh = hwh + (x − hwZ )hvl
= kvL -i-(y -kvh) Then, in step Sz1, the contents of the X register and y register are converted to kw
Transfer to L register and kvh register.

Therefore, through the process of step Szo 821, the upper left point of the original area is moved to the cursor position f(z, y), and the shape of the rectangle is not changed at all.

Then, in step 8tz, key range parameters are obtained by inversely converting the screen parameters, and set in the key range section 13. In step 8zs, the above-mentioned step Szo
, Draw a rectangle according to the screen parameters obtained with 8zx.

In step S24, the cursor position is detected, and if the cursor switch is in the on state in step S25, the process returns to step 819, and as the cursor indicating means 1 moves, the above-described process is performed to move the rectangular area. Run and do it.

Also, in step 8z5, it is detected that it is OFF'.

Then, in step 8zs, rERFIO is written to the X register.
Enter the special code RJ, return to step S7, and as described above, display all the books in each area on the display device 10.
After performing the above steps, the system enters a standby state in step S9.

By repeating these operations, you can set the key range (determined by the key range and the p-force range) that generates musical tones of multiple tones, and display it on the display [10] in a rectangular shape. The operator can visually check the area display.

Therefore, by controlling the sound source circuit so as to selectively generate musical tones of each tone in the set key range, that is, depending on the range and touch force, the keyboard split function can be realized. .

In the above embodiment, the area corresponding to all tones is displayed on the screen at once, so that the mutual relationship between the range parameters of each tone can be intuitively understood. It does not have to be displayed all at once.

In addition, in the above embodiment, the horizontal axis of the screen is the musical scale, and the vertical axis is the key touch (key press force or key press speed) to clearly indicate the keyboard split state on a two-dimensional display, but the factor on the vertical axis is This is not limited to key touches.

〔Effect of the invention〕

As explained above, the present invention graphically displays the relationship between each area and timbre obtained by dividing the keyboard using a display device, and easily edits the range of each area by changing the graphic. It has the effect of being able to

[Brief explanation of drawings]

Fig. 1 is a diagram showing the configuration of the present invention, Figs. 2 to 5 show an embodiment of the present invention, Fig. 2 is a circuit configuration diagram thereof, and Fig. 3 is an operation centered on the CPU. FIG. 4 is a diagram showing an example of a display screen, and FIG. 5 is an explanatory diagram of the operation when changing the display state of an area. DESCRIPTION OF SYMBOLS 1...Cursor instruction means, 2...Cursor position detection means, 4...Storage means, 6
... Comparison means, 10... Display device, 11...
・OPU, t2...Work register.

Claims (2)

[Claims] (1) In an electronic musical instrument that can generate musical tones of multiple tones, and can generate musical tones of each tone in each area obtained by dividing the keyboard, the areas obtained by dividing the keyboard are displayed graphically. 1. A keyboard split device for an electronic musical instrument, comprising: a display device for displaying the following information; and instruction means capable of rewriting graphics in the area on the display device. (2) The display device takes each scale of the keyboard on the horizontal axis, takes the key touch of each key on the keyboard on the vertical axis, and determines the area where musical tones of the same tone will be generated on the horizontal axis and the vertical axis. Claims characterized in that the rectangular figure is displayed on the display device, and the size and position of the rectangular figure displayed on the display device can be changed by the instruction means. The keyboard split device for an electronic musical instrument according to item 1.