JP3387254B2 - Electronic musical instrument - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an electronic musical instrument capable of dividing a musical range (key range) of one keyboard into a plurality of musical ranges and producing different musical tones in the respective keyboard ranges and having different functions. Regarding

[0002]

2. Description of the Related Art The keyboard range is divided into a plurality of areas, for example,
An electronic musical instrument has been put into practical use in which a right tone and a left tone are respectively assigned to the right keyboard and the left keyboard so that two tones can be produced by one keyboard. In addition, an electronic keyboard musical instrument that can divide the keyboard into a right keyboard region and a left keyboard region in this way, and one in which the user can freely set the boundary (split point) between the right keyboard region and the left keyboard region has been put into practical use.

On the other hand, not only the key range is divided into the right key range and the left key range as described above, but also the right key range, the left key range, and the ABC range.
Electronic keyboard instruments that can be divided into three parts of the keyboard range have also been put into practical use. The ABC key range is a range for specifying chords, and in auto bass chord mode (ABC mode), which is a type of automatic accompaniment mode, the performer specifies chords by a combination of keys turned on in this range. The electronic musical instrument generates a bass tone, a chord tone, and a rhythm tone with chords designated by this key combination. The ABC key range is provided on the left end of the keyboard, that is, on the left side of the left key range by about one octave.
Therefore, the boundary point between the ABC key range and the left key range (ABC split point) should be set to the left of the boundary point between the left key range and the right key range (left key range split point).

[0004]

However, in the conventional electronic keyboard instrument in which the user can freely set the split point, each split point can be set independently without any relation. Therefore, the ABC split point is set in the left keyboard range. It was possible to set it to the right of the split point. However, if the ABC split point is set to the right of the left key range split point, not only will the left key range disappear, but the ABC key range and right key range will overlap, and the key range allocation process will be performed. However, there is a drawback in that it becomes impossible and causes user confusion.

It is an object of the present invention to provide an electronic musical instrument in which a plurality of split points can be set independently, but the arrangement order of the split points is not confused.

[0006]

According to the invention of claim 1 of the present application, one keyboard is divided into three or more regions by two or more boundaries set in a predetermined order, and each region has a different function. In the electronic musical instrument to which is assigned, the boundary setting means for independently setting the two or more boundaries and the boundary setting means for setting the boundaries,
When the order of arrangement of the above boundaries is out of the predetermined order, the boundary setting means is arranged so as to be arranged in the predetermined order.
Boundary changing means for forcibly changing the set position set by the above.

The invention of claim 2 of this application is an electronic musical instrument in which one keyboard is divided into three or more areas by two or more boundaries set in a predetermined order, and different functions are assigned to the respective areas. A border setting unit that independently sets the two or more borders, and when the borders are set by the border setting unit as a result of the arrangement order of the two or more borders not being in the predetermined order, or Set by the boundary setting means so that when the interval between the boundaries becomes less than a certain value, the predetermined order and a certain interval or more
And a boundary changing unit for forcibly changing the set position. The invention of claim 3 of this application is
One keyboard on two or more boundaries set in a predetermined order
Therefore, it is divided into 3 or more areas, and each area is different
In an electronic musical instrument to which a function is assigned, the boundary of two or more
The boundary moving means for moving independently said boundary
As a result of the boundary being moved by the field moving means, the above two or more
When the arrangement order of the boundaries of is not the predetermined order,
Boundary change control means that invalidates movement and returns to the boundary before movement
Characterized by comprising and.

[0008]

In the electronic musical instrument according to the first aspect, the keyboard is divided into a plurality of areas (key areas), and different functions are assigned to the areas. The different function is, for example, a function of producing different tones or a function of designating a chord by a combination of key-on. The keyboard areas having these functions are arranged in a predetermined order on the keyboard. Therefore, the boundaries of adjacent key ranges are also arranged in a predetermined order. This boundary is set by the boundary setting means, but when the arrangement order of the boundaries is out of the predetermined order, the boundary changing means forcibly changes the set position so as to return to the predetermined order. As a result, the arrangement order of the boundaries, that is, the areas is always constant, and the user is not confused.

According to the electronic musical instrument of claim 2, in addition to maintaining the order, the set position of the boundary is forcibly changed so as to maintain the constant interval even when the interval becomes less than a certain value. To do. This allows each key range to have a fixed number of keys (tone range). Furthermore, billing
In the invention of item 3, as a result of moving the boundary by the boundary moving means,
When the order of the boundaries is out of the prescribed order,
Disable and force it back to its original boundaries. This allows
It is possible to keep the order of arrangement of boundaries or regions constant.
Wear.

[0010]

1 is a block diagram of an electronic musical instrument according to an embodiment of the present invention and a view showing an operation panel surface. In the block diagram of FIG. 1A, the CPU 10 controlling the operation of the electronic musical instrument is provided with a ROM 11 and RA via a bus.
M12, switch group 13, display 14, keyboard 1
5, a floppy disk drive 16, a MIDI interface 17 and a tone synthesis circuit 18 are connected. In the ROM 11, in addition to the operation control programs shown in FIGS. 3 to 5, automatic performance and automatic accompaniment (auto bass code:
A sequence program for executing ABC) is stored. Various tables and registers are set in the RAM 12. The switch group 13 includes various setting switches and function switches 40 provided on both sides of the display 14 (see FIG. 1B), and eight rotary encoders 31 provided below the display 14.
Includes ~ 38. The display 14 is provided substantially in the center of the operation panel, and the contents shown in FIG. 2, for example, are displayed according to the operation mode at that time. The display 14 is a liquid crystal matrix display.

In FIG. 1B, eight rotary encoders 31 to 38 are provided below the display 14. Further, function switches 40L and 40R are provided on the left and right of the display. The functions assigned to the rotary encoders 31 to 38 and the function switches 40L and 40R differ depending on each mode, and the functions are displayed on the screen of the display 14 in that mode. Although the switch group includes various setting switches such as mode switches,
Since the present invention has no direct relationship, a concrete illustration is omitted.

The keyboard 15 is a keyboard of about 5 octaves. This keyboard range is divided into a right keyboard range, a left keyboard range, and an ABC keyboard range, and different tone colors (right tone color, right tone color, The left tone color) is assigned, and the ABC key range is assigned the function of designating a chord by a key-on combination. In the floppy disk drive 16, a floppy disk in which sequence data and the like are written is set. An external MIDI device such as a sequencer is connected to the MIDI interface 17. Music synthesis circuit 18
Synthesizes a tone signal based on a note event input from the keyboard 15 or MIDI interface 17. Also, a rhythm sound generated based on the ABC program,
Chord sounds, bass sounds, etc. are sounded by the tone synthesis circuit 18. The tone signal generated by the tone synthesis circuit 18 is input to the sound system 20. Sound system 2
0 converts this musical tone signal into an analog signal, amplifies it, and then outputs it to the outside. FIG. 2 is a diagram showing a display example of the display. This display example shows a display example in the split point setting mode. At the top of the display 14,
A split point between the BC key range and the left key range (ABC split point) and a split point between the left key range and the right key range (LEFT split point) are displayed by key codes sandwiching the split point. In the case of FIG. 7A, the ABC split point is F # 2.
Between G2 and G2, LEFT split point is C
3 and D ♭ 3. Also, the bottom 5 of the display
In Fig. 1, a picture of the keyboard is displayed with a step at the split point. On the upper side of the picture on the keyboard, pointers 52 and 53 indicating the positions of the ABC split point and the LEFT split point are displayed.

Further, on the lower side of the display 14, function displays 54 and 55 of the rotary encoders 31 to 38 are displayed. According to the figure, an ABC split point setting function is assigned to the four rotary encoders 31 to 34 on the left side. When one of the rotary encoders is turned up, the ABC split point moves to the right (high side), and conversely, when turned down, the ABC split point moves to the left (low side). A LEFT split point setting function is assigned to the four rotary encoders 35 to 38 on the right side. When one of these rotary encoders is turned up, the LEFT split point moves to the right (treble side), and conversely when turned down, L
The EFT split point moves to the left (low side).
The function switch 40L is assigned a direct setting function of ABC split point. That is, when any key on the keyboard 15 is turned on while the function switch 40L is turned on, that key becomes the highest note in the ABC key range, and the ABC split point is set on the high note side. In addition, the function switch 40R is LE
FT split point direct setting function is assigned. When an arbitrary key on the keyboard 15 is turned on while the function switch 40R is turned on, the key becomes the highest tone key in the left keyboard range, and the LEFT split point is set on the high tone side.

FIG. 1B shows a state in which the ABC split point is moved to the right and overlaps with the LEFT split point. Both have a split point between C3 and D ♭ 3. If the ABC split point is moved to the right in this state, the LEFT split point is prohibited from being located on the left side of the ABC split point, and therefore the LEFT split point moves to the right as the ABC split point moves. Conversely, if the LEFT split point is moved to the left in this state, the ABC split point is prohibited from being located on the right side of the LEFT split point, so the ABC split point moves to the left according to the movement of the LEFT split point.

The operation of this electronic keyboard instrument will be described with reference to the flow charts of FIGS.

FIG. 3 is a flowchart showing the rotary encoder process. First, it is determined whether or not the split point set mode is set (s1). In the split point set mode, the operation proceeds to s2 and below.
If it is not the split point set mode, the process proceeds to s11 to execute the function assigned to the rotary encoder corresponding to the mode at that time.

In the split point set mode, the number of the operated rotary encoder is set to RENNU.
It is set to M (s2) and the operated direction (up and down) is set to REDIR (s3). If the rotary encoder is turned up, REDIR is set to 1, and if it is turned down, -1 is set.

When RENNUM≤4, that is, when the rotary encoders 31 to 34 are operated, the rotary encoder is for setting the ABC split points, and therefore the ABC split point register A
Increase or decrease BCSP by 1 according to the operated direction (s
5). As described above, REDIR is set to 1 when rotating upward, and -1 is set when rotating downward, so ABC
This increase / decrease can be realized by adding REDIR to SP. The value of ABCSP is LEF by this operation.
When it becomes larger than the T-split point register LKBSP, ABCSP is set to LKBSP in order to make LKBSP and ABCCSP the same value (s
6). That is, when the ABC split point moves to the right (treble side) and is about to move to the right of the LEFT split point, the LEFT split point is moved to the right at the same time. This prevents the ABC split point from moving to the right of the LEFT split point. In addition, when such processing is performed,
Some kind of warning may be issued to notify the user of the setting abnormality. As the warning, there is a method of sounding some kind of sound (beep sound) or blinking the display of the display 14.

Next, the ABCS thus determined
The display on the display 14 is updated according to the positions of P and LKBSP (s9). Furthermore, this time ABCSP, L
When the KBSP is moved, the key-depression information in which the key range to which it belongs is changed is detected, and if it is being sounded, the tone synthesis circuit 18
To send a KOF signal to mute the musical tone (s
10).

On the other hand, when RENNUM ≧ 5 in s4, that is, when the rotary encoders 35 to 38 are operated, since the rotary encoder is for setting the LEFT split point, the LEFT split point register LKBSP is operated. Increases or decreases by 1 depending on the direction (s7). As described above, REDIR is set to 1 when rotating upward, and -1 is set when rotating downward. Therefore, this increase or decrease can be realized by adding REDIR to LKBSP. By this operation LKB
When SP <ABCSP, LKBSP and AB
LKBSP to ABCSP to make CSP the same value
Is set (s8). That is, when the LEFT split point moves to the left (low tone side) and is likely to move to the left of the ABC split point, the ABC split point is moved to the left at the same time. This allows
The LEFT split point never goes to the left of the ABC split point. Further, also in this case, some warning may be issued as in the case of s6. After this, proceed to s9.

FIG. 4 is a flow chart showing the key event processing operation. First, if there is a key event, the event key code KC and touch information (velocity) will be V
After setting to EL (s20), the current mode is judged (s21, s22). If the split point set mode is set and the function switch 40L or 40R is turned on, the split point direct set mode is set, and the operation proceeds to step s23 and thereafter. In other cases, the sounding / muting operation is a normal key event, so the process proceeds to s30. At s30, KC, ABC_MODE, SPLIT_MODE,
Sound generation / silence processing and chord designation processing are executed according to ABCSP and LKBSP (see FIG. 6).

On the other hand, in the direct set mode,
When the function switch number FUNKR = 1, that is, when the function switch 40L is turned on, the operation is the ABC split point setting operation, so the key code KC of the turned-on key is set in ABCSP (s24). As a result, ABCSP> LKBSP
If so, ABCSP is set in LKBSP (s25). Next, the ABC thus determined
The display on the display 14 is updated according to the positions of SP and LKBSP (s28). ABCSP, LKBS of this time
By the movement of P, the key depression information in which the belonging key range is changed is detected, and if it is being sounded, K is sent to the tone synthesis circuit 18.
An OF signal is sent (s29).

In the direct set mode,
When the function switch number FUNKR = 0, that is, when the function switch 40R is turned on, this is a LEFT split point setting operation, so the key code KC of the turned-on key is set in LKBSP (s26). As a result, ABCSP> LKBS
When it becomes P, LKBSP is set to ABCSP (s27). Next, the AB thus determined
Display 14 according to the position of CSP and LKBSP
Is updated (s28). This time ABCSP, LKB
When the SP moves, the key depression information in which the key range to which it belongs is changed is detected, and if it is sounding, a KOF signal is sent to the tone synthesis circuit 18 (s29).

In this operation, if the contents of the register are forcibly rewritten in s25 and s27, a warning may be issued to the user.

FIG. 5 is a flow chart showing a key event processing operation corresponding to each key range.

FIG. 3A shows the key event handling process for the right and left key ranges. If the KC of the key event is in the right key range, the tone color RKBTC in the right key range is set to TC (s31). If this event is the key on event (s33), the sound generation channel is secured (s3).
4), KC, TC, VE on the secured sound channel
L and KON are sent to start the sounding operation. If this event is a key-off event, the channel sounding with KC and TC is searched and a key-off signal is sent to this channel (s36). On the other hand, if the KC of the key event is in the left key range, LKBT
After setting C to TC, proceed to s33.

FIG. 2B is a flow chart showing the ABC processing. If the KC of the key event is in the ABC key range, the ABC_KC buffer is updated (s40). That is, the KC is added at the key-on event, and the KC is deleted at the key-off event. Next, an automatic accompaniment sound is generated according to ABC_KC and the selected rhythm, beat, etc. (s4
1).

In this embodiment, each split point can be moved until the ABC split point and the LEFT split point overlap, but in order to prevent the left key range from running out, the difference between ABCSP and LKBSP is 12 semitones. That is, when the number of octaves becomes 1 octave or less, they may be driven by each other.

That is, ABCSP + 12> LKBSP
In this case, LKBSP ← ABCSP + 12 or ABCSP ← LKBSP-12 is set. In order to prevent the ABC key range from disappearing, it is sufficient to prohibit the movement so that the ABCSP becomes smaller (to the left) than the position one octave from the lowest pitch, and the right key range does not disappear. LK
It is sufficient to prohibit the movement so that the BSP becomes larger (to the right) than the position one octave lower than the highest pitch.

Further, in this embodiment, when one split point is set to exceed the other split point, the setting of the one split point is made effective and the other is driven. Alternatively, it is possible to invalidate the setting of the split point that exceeds the other split point and forcibly return to the original setting value.

[0031]

As described above, according to the present invention, even when one keyboard is divided into three or more areas by two or more boundaries, the order of arrangement of the boundaries does not change and the areas of three or more areas are not changed. Settings can be kept valid at all times.

Further, since the boundaries are maintained at a certain interval or more, the boundaries do not overlap and the region does not disappear.

[Brief description of drawings]

FIG. 1 is a block diagram of an electronic keyboard musical instrument that is an embodiment of the present invention.

FIG. 2 is a diagram showing a display example of a display of the electronic keyboard instrument.

FIG. 3 is a flowchart showing the operation of the electronic keyboard instrument (rotary encoder processing operation).

FIG. 4 is a flowchart showing the operation of the electronic keyboard instrument (key event processing operation).

FIG. 5 is a flowchart showing the operation of the electronic keyboard instrument (processing operation corresponding to each key range).

[Explanation of symbols]

14-display, 15-keyboard, 31-38-rotary encoders 40L, 40R-function switch

Claims (3)

(57) [Claims] 1. An electronic musical instrument in which one keyboard is divided into three or more regions by two or more boundaries set in a predetermined order, and different functions are assigned to the respective regions, the two or more boundaries are respectively defined. a boundary setting means for setting independently, results bounded by the boundary setting means is set, when the arrangement order of the two or more boundary is no longer the predetermined order, said to be the sequence of said predetermined order Boundary setting means
An electronic musical instrument, comprising: a boundary changing unit for forcibly changing the set position set by . 2. In an electronic musical instrument in which one keyboard is divided into three or more areas by two or more boundaries set in a predetermined order, and different functions are assigned to the respective areas, the two or more boundaries are respectively defined. As a result of the boundaries being set by the boundary setting means and the boundary setting means set independently, when the arrangement order of the two or more boundaries is not in the predetermined order, or the interval between the boundaries is less than a certain value. when it becomes the predetermined order and so that above a certain interval the boundaries set
An electronic musical instrument comprising: boundary changing means for forcibly changing the set position set by the setting means. 3. One keyboard is set in a predetermined order
Divide into 3 or more areas by 2 or more boundaries, and
In an electronic musical instrument to which different functions are assigned, a boundary shift for independently moving the two or more boundaries.
The moving means and the boundary moving means move the boundary,
When the order of arrangement of two or more boundaries is not the predetermined order,
Boundary change control that invalidates the movement and returns to the boundary before movement
An electronic musical instrument characterized by having means .