JPH1074086A - Playing mode changeover device of electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to meticulously control the mode changeover of sound source systems by outputting mode information for controlling the sound source system by the state of a playing mode changeover switch. SOLUTION: Musical tones are generated (1), (2), (3) from the external sound source system A or B or A and B over the entire area of a keyboard when the SW on a turned left side is turned on and further, the SW on the right side of the same system as this system is turned on. When the SWs on the turned on left side and right side are turned on as they are, the musical tones are respectively generated from the external sound source system A or B by the operation of the keys on the left side and the right side from the split points of the keyboard (4). The sound source systems A and B are changed over in this state and the musical tones are generated (5). The musical tones are generated from the external sound source system A by the operation of the left side keys from the split point of the keyboard and the musical tones are generated from the external sound source systems A and B by the operation of the keys on the right side (6).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance mode switching device of an electronic musical instrument for controlling an externally provided sound source.

[0002]

2. Description of the Related Art Generally, an electronic musical instrument of this kind for controlling an external sound source is as shown in FIG. 5, and an electronic musical instrument main body 1 has a sound source sequence A and a sound source sequence B externally. sequence a consists of m source a ₁ ~a _m, tone sequence B consists of n pieces of sound source b ₁ ~b _n. The external tone generators A and B can be variously controlled by a performance mode switching device provided on the electronic musical instrument main body side.

A conventional example of a performance mode switching device in the above-mentioned electronic musical instrument will be described below with reference to FIG. FIG.
In FIG. 5A, reference numeral 2 denotes a mode changeover switch for instructing a performance mode changeover.
There are five operation buttons 3 of wap, and by operating these operation buttons 3, the performance mode of the external sound source series is switched.

Next, a description will be given of a performance mode which is switched by operating each operation button. First, the operation button 3
If single A is selected, a tone is generated only from the sound source sequence A by operating the keyboard as shown in FIG. 6B. If singleB is selected, a musical tone is generated only from the sound source sequence B by operating the keyboard. If dual is selected, musical tones are generated simultaneously from the sound source sequences A and B by operating the keyboard. When split is selected, a tone is generated from the tone generator sequence A by operating the right keyboard from the keyboard split point, and a tone is generated from the tone generator sequence B by operating the left keyboard. If the user selects swap after selecting split, a tone is generated from the tone generator series B by operating the right keyboard from the keyboard split point, and a tone is generated from the tone generator series A by operating the left keyboard. You.

The position of the split point on the keyboard can be appropriately set by the user.

[0006]

However, according to the above-described conventional configuration, when split is selected by the operation button 3, a tone is generated from one sound source sequence by operating the right key from the keyboard split point, and When a key is operated, a tone is generated from one other sound source sequence. When swap is subsequently selected, the two sound source sequences are interchanged to generate a tone, and a keyboard split point is generated. To generate musical tones from both sound source sequences by operating the right key, and to generate musical tones from one sound source sequence by operating the left key, or to generate musical sounds from both sound source sequences by operating the left key As a result, a tone cannot be generated from one sound source sequence by operating the right key.

[0007]

In order to solve the above-mentioned problems, the present invention provides a performance mode changeover switch having a switch for each sound source series and keyboard position, and mode information for controlling the sound source series based on the state of the performance mode changeover switch. And a performance mode setting means for outputting the same.

The operation of the present invention by the above means is as follows. That is, a switch is provided for each of the tone generator series and the keyboard position, and the mode information is obtained based on the ON-OFF state of the switch. All the cases according to the tone generator series and the keyboard position can be selected by the switch. Mode information can be obtained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a performance mode changeover switch having a switch for each tone generator series and keyboard position, and mode information for controlling the tone generator series according to the state of the performance mode changeover switch. And a performance mode setting means for outputting a tone signal, and all cases can be selected by a switch according to a sound source sequence and a keyboard position, thereby providing an effect of performing fine mode switching control. Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

(Embodiment 1) FIG. 1 shows a main block of an electronic musical instrument provided with a performance mode switching device according to an embodiment of the present invention. Reference numeral 11 denotes a keyboard having 88 keys.
Reference numeral 2 denotes a key scan circuit for sequentially scanning the keys, detecting the pressed state of each key and outputting keyboard information, 13 a performance mode switch (SW) for controlling an external sound source sequence, and 14 a performance mode switch SW13. A performance mode setting circuit for sequentially scanning each switch (SW), detecting the ON / OFF state of each SW, and outputting mode information, and 15 a keyboard information obtained from the key scan circuit 12 obtained from the performance mode setting circuit 14. Each sound source (not shown) while referring to the mode information
A note assignment information creating circuit for creating note assign information for assigning a musical tone to a tone generator, and a sound source control information transmitting circuit 16 for outputting the note assign information from the note assign information creating circuit 15 as each tone generator control information.

FIG. 2 shows the arrangement of the switches of the above-mentioned performance mode switch SW13, which are arranged as a matrix with the sound source series arranged vertically and the keyboard positions arranged horizontally. The operation of the thus configured electronic musical instrument performance mode switching apparatus according to one embodiment of the present invention will be described below.
FIG. 3 is a flowchart showing processing in the performance mode setting circuit 14, and FIG. 4 shows an operation state of the performance mode switching SW 13 and a corresponding performance mode switching control state.

First, in step (3-1), the state of the pressed performance mode switch SW is determined. here,
When it is determined that only the left side is ON, for example, as shown in FIG.
In the state of the performance mode switch SW shown above each of (2) and (3), it is turned on in step (3-2).
The left-side SW is turned on, and the right-side SW of the same series is also turned on. Therefore, FIGS. 4 (1), (2), (3)
As shown in (1), mode information is generated so that a musical tone is generated from the external sound source sequence A or B or A and B over the entire keyboard.

If it is determined in step (3-1) that only the right side is ON, for example, as shown in FIGS.
In the state of the performance mode changeover SW shown in the lower side of (3), the right side SW which is turned on in step (3-3) is turned on, and the left side SW of the same series is also turned on. Therefore, as shown in FIGS. 4 (1), (2) and (3), mode information is generated so that a musical tone is generated from the external tone generator sequence A or B or A and B over the entire keyboard.

In step (3-1), the left side and the righ
When it is determined that the t side is ON, for example, FIG.
In the state of the performance mode switching SW shown in (9), the left SW and the right SW that are turned on in step (3-4) are turned on as they are. Accordingly, in FIG. 4D, mode information is generated such that a tone is generated from the external sound source sequence A by operating the left key from the keyboard split point, and a tone is generated from the sound source sequence B by operating the right key. In FIG. 5 (5), the mode information is created so that the sound source sequences A and B are interchanged in the state of FIG.

In FIG. 6 (6), mode information is generated so that a tone is generated from the external tone generator sequence A by operating the left key from the keyboard split point, and a tone is generated from the tone generator sequences A and B by operating the right key. Created. In FIG. 7 (7), in the state of FIG. 6 (6), mode information is generated so that musical tones are generated from the external sound source sequences A and B as if the left and right keys were switched from the keyboard split point. You.

In FIG. 8 (8), a mode is such that a tone is generated from an external sound source sequence B by operating the left key from the keyboard split point, and a tone is generated from the sound source sequences A and B by operating the right key. Information is created. In FIG. 9 (9), in the state of FIG. 8 (8), mode information is generated such that musical tones are generated from the external sound source sequences A and B as if the left and right keys were switched from the keyboard split point. You.

Keyboard information is created as note assign information by the note assign information creating circuit 15 based on the above-mentioned mode information, and is output as sound source control information through a sound source control information transmitting circuit 16 to control the mode switching of an external sound source. As described above, according to the present embodiment, the performance mode switch SW has a switch for each sound source series and keyboard position.
Further, since the switches are arranged in a matrix, the switch is very easy to use without increasing the number of switches, and the mode switching control of the external sound source sequence can be finely performed. Also, depending on the performance mode setting circuit, the left side or right side
SWs of the same series that are not turned on when only the side is turned on
By turning ON also, the labor of the SW operation can be reduced by half.

In the above embodiment, the number of tone generator series is set to 2 and the number of keyboard split points is set to 1. However, even if the number increases, the same effect can be obtained by increasing the number of performance mode changeover switches and arranging them in a matrix. Can be Further, in the above embodiment, the sound source sequence is described as an external sound source, but it goes without saying that the mode switching control may be performed by incorporating the sound source provided in the electronic musical instrument main body into one sound source sequence.

[0019]

As is clear from the above embodiment, the present invention outputs a performance mode changeover switch having a switch for each tone generator series and keyboard position, and outputs mode information for controlling the tone generator series according to the state of the performance mode changeover switch. Since the performance mode setting means is provided, the mode switching control of the sound source series can be finely performed without increasing the number of switches.

[Brief description of the drawings]

FIG. 1 is a main block diagram of an electronic musical instrument provided with a performance mode switching device according to an embodiment of the present invention.

FIG. 2 is a plan view of the performance mode changeover switch.

FIG. 3 is a flowchart showing processing in a performance mode setting circuit;

FIG. 4 is a schematic diagram showing a state of a performance mode changeover switch and a performance mode changeover control of a tone generator series.

FIG. 5 is a plan view showing a general electronic musical instrument and an external sound source series.

FIG. 6 is a schematic diagram showing a state of a conventional performance mode changeover switch and performance mode changeover control of a tone generator series.

[Explanation of symbols]

 13 Performance mode switch 14 Performance mode setting circuit

Claims (1)

[Claims] 1. A performance mode having N.times. (M + 1) switches for a keyboard having at least (M + 1) keys capable of setting an arbitrary m split points out of N tone generator sequences and M at maximum. A performance mode switching device for an electronic musical instrument, comprising: a changeover switch; and performance mode setting means for outputting mode information for controlling the sound source sequence according to the state of the performance mode changeover switch.