JPH0128396B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention is capable of generating musical tones of a plurality of tones, and generates musical tones by dividing (splitting) the musical tones of each tone into areas determined by two-dimensional parameters. The present invention relates to a possible tone splitting device for electronic musical instruments.

[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.
It is proposed as No. 167120.

By the way, in such conventional technology, 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 A drawback was that it was difficult to understand the interrelationships between each area of musical tones of multiple tones.

[Purpose of the invention]

This invention was made in view of the above points, and allows a plurality of tones to correspond to areas surrounded by the upper and lower limits of two-dimensional parameters, and each area can be easily confirmed visually. The purpose of the present invention is to provide a tone splitting device for an electronic musical instrument.

[Key points of the invention]

In order to achieve the above object, the present invention provides a display means that performs two-dimensional display, and conditions for selectively generating musical tones of a plurality of tones in a plurality of areas surrounded by upper and lower limits of two-dimensional parameters. By providing a condition determining means for determining, and a control means for controlling each of the plurality of areas determined by the condition determining means to be displayed two-dimensionally on the display means, each tone and each Relationships between areas can be easily and clearly recognized.

In this case, it is preferable that the upper and lower limits of the two-dimensional parameters can be set arbitrarily by the user.

According to one configuration example, the two-dimensional parameters can be a musical scale and a key touch.

[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. Other coordinate input devices can be used.

Reference numeral 2 denotes a cursor position detection means for detecting the cursor position specified by the operation of the cursor display means 1;
and the information read out from the storage means 4 by the reading means 3 and converted by the cursor position conversion means 5 as cursor position information (i.e., screen position information on the display device 10) are compared to the comparison means 6. are compared.

That is, information specifying each area (for example, information on a diagram showing a rectangle) stored in advance in the storage means 4
The comparison means 6 compares the cursor position information specified by the cursor instruction means 1 with the cursor position information specified by the cursor instruction means 1.

Then, in this comparison means 6, the storage means 4
When it is detected that the cursor position information is approximately the same as the specific part of the position information set in In accordance with the cursor instruction No. 1, the parameters obtained by the position inverse conversion means 7 are written into the storage means 4 by the writing means 8.

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. As the display device 10, a CRT or the like can be used. Further, 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 are connected.

Therefore, by operating the cursor indicating means 1, the operator can freely change the parameters for determining the area of each tone, which are set in advance in the storage means 4. By using a musical scale and displaying the vertical axis as a rectangle by touching each key, it becomes possible for the operator to more easily recognize each set area. Furthermore, as is clear from the above description, the display device 10
corresponds to the display means for performing the above-mentioned two-dimensional display, the cursor instruction means 1, the cursor position detection means 2, the storage means 4, the writing means 8, etc. correspond to the above-mentioned condition determination means, and the display conversion means 9 etc. correspond to the control means described above.

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 a CPU 11 consisting of a microprocessor or the like.

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

This work register 12 includes an x register and a y register that store the current cursor position, as well as
Memorize the upper limit of the key range (scale) for each area
kwh register, kwl register that stores the lower limit,
A kvh register for storing the upper limit of the key force range (key touch), a kvl register for storing the lower limit of the key force range, a tone number register used for processing described later, etc. are provided.

The CPU 11 is connected to an external storage unit 13,
In addition to exchanging data, it also sends display data to a video RAM (VRAM) 14 for displaying on the display device 10.

Further, this CPU 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 musical instrument.

Next, the operation centered on the CPU 11 will be explained with reference to the flowchart shown in FIG.

First, in step _S1 , each register and display state are initialized. Next, in step _S2 , the cursor position specified by the cursor instruction means 1 is read 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 key range parameters (key range parameters and key force range parameters are collectively referred to as key range parameters) recorded in the kwh register, kwl register, kvh register, and kvl register corresponding to the first tone are area parameters) to on-screen parameters. Then, in step _S5 , 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 _S7 , and the contents of the tone number register are incremented by 1. , proceed to step S ₈ and check whether all processing up to the last tone has been completed. If NO, return to step S ₂ again, and proceed in the same manner to step S _2.
~S ₈ is executed for each tone, and finally the step
Proceed to _S9 and enter standby mode until the cursor switch is turned on.

By the way, if the key range in which each tone should be output has not yet been specified, an area for each tone will exist at the top left point of the screen. In other words, kwh, kwl, kvh, kvl all take the same value, but now, by repeating the process described below, the three tones (BOM,
HORSE, VIOLIN) are determined at the positions shown in Figure 4, and the display is as follows.
It is assumed that this is done by the processing in steps _S4 and _S5 .

Now, we will explain how to change the position or size of the third tone (VIOLIN). It is assumed that the contents of each register kwh, kwl, kvh, kvl have been determined as shown in FIG. 4.

Then, when the cursor is moved and its x-coordinate takes approximately the same value as the value of register kwh, the cursor switch is turned on, and step _S10 is executed.
If this is determined, the process proceeds to step _S11 , and as the cursor moves, the left end point of the area is fixed and its size is changed. That is, as shown in FIG. 5A, the lower limit of the key range determined by registers kwl and kvh 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. I do.

That is, in step _S12 , the cursor position (x,
y) in the kwh register and kvl register,
Proceed to step _S13 and from this screen parameter,
The key range parameters are inversely converted and stored in the storage unit 13, and the process proceeds to step _S14 , where a rectangle is drawn using the current screen parameters.

Then, in step _S15 , the cursor position is read again from the operating position of the cursor pointing means 1, and in step _S16 , it is determined whether the cursor switch is maintained in the on state.

Then, when the CPU 11 detects that the cursor switch is on, the process returns to step _S11 .
The process of steps _S11 to _S16 is then repeated, and as the cursor pointing means 1 is moved, the rectangular display of the area concerned is changed.

Then, when you move the cursor to a certain position and turn off the cursor switch, the step
It is determined to be OFF in _S16 , and the process proceeds to step _S17 .
Preset a value (special code) called (ERROR) that does not appear on the screen in the x register, and then
Return to _S7 .

Therefore, the areas corresponding to all the tones are displayed by repeating steps _S2 to _S8 , and then, in step _S9 , a standby state is entered.

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 x-coordinate of the cursor takes approximately the same value as the value of the register kwl.

That is, in that case, a YES determination is made in step S18, and the process proceeds to step _S19 . That is,
In the process described below, as the cursor moves, the leftmost point of the area moves. FIG. 5B shows such a situation.

That is, in step _S19 , the rectangular display drawn with the current screen parameters is erased, and then in step _S20 , the contents of the kwh register and kvl register are rewritten as follows.

kwh=kwh+(x-kwl) kvl=kvl+(y-kvh) Then, in step _S21 , the contents of the x register and y register are transferred to the kwl register and kvh register.

Therefore, by processing steps S ₂₀ and S _21, the upper left point of the original area is moved to the cursor position (x,
y), and the shape of the rectangle is not changed at all.

Then, in step _S22 , key range parameters are obtained by inverse conversion from the screen parameters and are set in the storage section 13. In step _S23 , a rectangle is drawn according to the screen parameters obtained in steps _S20 and _S21 .

In step _S24 , the cursor position is detected, and if the cursor switch is on in _{step S25} , the process returns to step _S19 , and as the cursor indicating means 1 moves, the rectangular area is moved as described above. Perform the process.

Also, if it is detected in step _S25 that it is OFF, "ERROR" is written to the x register in step _S26 .
After inputting the special code, the process returns to step _S7 , and as described above, all areas are displayed on the display device 10. Then, in step S9, the display device ₁₀ enters a standby state.

By repeating these actions,
A key range (determined by a key range and a key force range) that produces musical tones of a plurality of tones is set, and the operator can visually confirm this by displaying a rectangular area on the display device 10. It becomes possible.

Therefore, by controlling the sound source circuit 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 is realized. can.

In the above embodiment, the areas corresponding to all tones are displayed on the screen at once, so that the mutual relationship between the range parameters of each tone can be intuitively understood. It is not necessary to display the tones 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 pressing force or key pressing 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 touch.

〔Effect of the invention〕

As explained above, the present invention associates each of a plurality of tones with an area surrounded by the upper and lower limits of a two-dimensional parameter, and moreover, displays each area two-dimensionally to easily confirm it visually. 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 invention, Fig. 2 is its circuit configuration diagram, and Fig. 3 is its 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... CPU, 12... Work register.

Claims (1)

[Scope of Claims] 1. A tone splitting device for an electronic musical instrument capable of simultaneously generating musical tones of a plurality of tones, comprising: a display means for performing two-dimensional display; and a device for selectively generating musical tones of the plurality of tones. a condition determining means for determining conditions for a plurality of areas surrounded by upper and lower limits of two-dimensional parameters; and a two-dimensional display of each of the plurality of areas determined by the condition determining means on the display means. A timbre splitting device comprising: a control means for controlling the timbre splitting device; 2. Claim 1, characterized in that the upper and lower limits of the two-dimensional parameters in the condition determining means can be set arbitrarily by the user.
The tone splitting device described in Section 1. 3. The tone color splitting device according to claim 1 or 2, wherein the two-dimensional parameters are a musical scale and a key touch.