JPH08137472A - Electronic musical instrument - Google Patents

Abstract

PURPOSE: To facilitate the setting of a split playing in an electronic musical instrument in which a split playing is possible. CONSTITUTION: In a first playing mode, a keyboard is divided into plural regions and the tone colors of the musical sound signals generated for every divided region are different. In a second playing mode, the tone colors of musical sound signals generated in all regions of the keyboard are same. When a mode operation controller specifying either the first mode or the second mode is operated for a shorter duration than a prescribed time, a mode switching is executed between the first and the second modes. If the controller is operated longer than the prescribed time, a confirmation is made for the different tone colors and a control is made so as not to execute a mode switching. Thus, a user operates the controller for a shorter duration for a mode switching. If the person wants to check the tone colors, the controller is operated for a longer duration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument capable of performing a split performance, that is, dividing a key range into a plurality of regions and performing a different tone color for each region.

[0002]

2. Description of the Related Art Conventionally, in an electronic musical instrument (electronic keyboard musical instrument), there is a technique called split performance (the keyboard is divided into a plurality of regions and each region is played with a different tone color). Regarding the setting of the split performance, for example, in Japanese Unexamined Patent Publication No. 4-181295, when the split performance designating switch is pressed to enter the split performance mode, the tone selection switch is operated while operating the keys in the right keyboard range. Is set, and an electronic musical instrument in which the tone color of the left keyboard range is set by operating the tone color selection switch while operating the key of the left keyboard range is described.

There is also an electronic musical instrument in which the position where the key range is divided can be selected from a plurality of positions. For example, in the electronic musical instrument disclosed in Japanese Patent Laid-Open No. 4-181295, it is provided on an operation panel. The split position is changed depending on the number of times the split performance designating switch is operated, and the set split position is displayed by an LED or the like provided near the keyboard.

[0004]

In the above-mentioned conventional electronic musical instrument, the tone colors set in the right and left keys cannot be confirmed. That is, since the same tone color selection switch is operated when setting a tone color for both the right and left keyboard ranges, for example, an LED is provided for each tone color selection switch, and the set tone color is confirmed by lighting this LED. Even if it was possible, it was only possible to display the tones set in either the right or left range.

Further, regarding the selection of the position for dividing the key range, it is difficult to understand the relationship between the operation of the split performance designating switch and the dividing position, and the setting of the dividing position cannot be known unless the instruction manual of the electronic musical instrument is referred to. There is an inconvenience that the desired position cannot be set with one operation.

[0006]

The present invention has been made in view of the above-mentioned inconvenience. In the first invention, a keyboard having a plurality of keys and a tone signal is generated based on the keyboard operation. In the electronic musical instrument provided with a musical tone generating means, the keyboard is divided into a plurality of areas, and the first performance mode in which the tone color of the generated musical tone signal is different for each divided area is the same in all areas of the keyboard. Mode designating operator for designating any one of the second performance modes for generating the tone signal of the tone color, and when the operation time of the mode designating operator is shorter than a predetermined time, the first and second performance modes And a control means for controlling the mode to be switched between the two, and when the operation time is longer than a predetermined time, the different timbres can be confirmed and the mode is not switched. It is characterized in.

According to the second aspect of the present invention, there is provided a keyboard having a plurality of keys, and a musical tone generating means for generating a musical tone signal based on the keyboard operation. The keyboard is divided into a plurality of areas, and the divided areas are divided. A tone signal of the generated tone signal is different for each, and a plurality of operators for selecting and specifying the position for dividing the keyboard area from a plurality of positions, each operator being in the vicinity of the keyboard. And a setting for setting the position of dividing the keyboard area to the position corresponding to the operated operator, based on the operation of the operator, which is provided at each of the positions corresponding to the dividing position. And means.

[0008]

According to the first aspect of the invention, the keyboard is divided into a plurality of areas, and the musical tone signals having the same tone color in all areas of the keyboard are the same as those in the first performance mode in which the tone color of the tone signal generated in each divided area is different. When a mode designating operator for designating any one of the second performance modes for generating a sound is operated for a time shorter than a predetermined time, it is controlled so as to switch the mode between the first and second performance modes. When the operation is performed for a time longer than the predetermined time, the different tone colors can be confirmed, and the mode is controlled not to be switched. The user operates the manipulator for a short time when switching the mode, and operates the manipulator for a long time when confirming the tone color.

According to the second aspect of the invention, when the keyboard is divided into a plurality of areas and the tone color of the tone signal generated in each of the divided areas is different, the position where the keyboard area is divided by a plurality of operators is set. You can select from multiple positions. Each operator is provided in the vicinity of the keyboard and in the vicinity of the dividing position, and the user operates this to select and specify the dividing position.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a hardware configuration. A CPU (Central Processing Unit) 1 controls the operation of the entire device, and executes processing in accordance with a control program stored in a ROM (Read Only Memory) 3. Also,
The CPU 1 and each unit are connected via a bus 2, and various data are transmitted and received. A RAM (random access memory) 4 is a buffer, a register for temporarily storing various data generated during processing by the CPU 1,
Areas such as flags are provided. Timer 11 is a CPU
The interrupt signal of a predetermined cycle is supplied to 1,
The CPU 1 executes timer interrupt processing in accordance with the generation of this interrupt signal.

The keyboard 5 has a large number (for example, 61) of keys, and when the keyboard is operated by the player, the keyboard detection circuit 6 detects the operation and the CPU 1 is operated via the bus 2.
Operation information is output to. The CPU 1 creates note data such as note on and note off based on the key operation information, and outputs it to the tone generator circuit 10 via the bus 2. The tone generator circuit 10 forms a tone waveform signal based on the supplied note data. As a method of the sound source circuit, a known waveform memory reading method, FM (frequency modulation) method, physical model simulation method, or the like is used. The tone waveform signal generated in the tone generator circuit 10 is supplied to the sound system 13 to generate a tone.

Reference numeral 7 is a panel switch for selecting a tone color,
It has a large number of switches for designating various functions of the electronic musical instrument, such as designation of the left voice mode and selection of split points. The operation of these switches is detected by the switch detection circuit 8, and the operation information is sent via the bus 2 to the CPU.
1 is supplied. The CPU 1 executes various functions according to the supplied switch information. Reference numeral 9 denotes a display circuit formed of an LED provided on the operation panel surface, and displays various setting states. A MIDI (Musical Instrument Digital Interface) interface (I / F) 12 outputs note event data and the like generated by the operation of the keyboard 5 to an external sound source device or a sound source circuit of the electronic musical instrument. In order to drive 10, note event data or the like is received from an external electronic musical instrument or the like.

FIG. 2 is a view showing the operation panel surface of the electronic musical instrument. A large number of switches 7 are provided on the operation panel surface. The switch 7-1 is a tone color selection switch, and the tone color of a musical tone produced when the keyboard is operated is selected by operating any of these switches. An LED for displaying the selected tone color is provided near each tone color selection switch. The user can confirm the tone color selected at that time by turning on the LED. The switch 7-2 is a left voice switch, which divides the keyboard area into two areas, a right keyboard area and a left keyboard area, and a left voice mode (split performance mode) in which different areas can be played with different tones. Is a switch for specifying. Each time the left voice switch is operated for a short time (for example, within 1 second), the left voice mode and the normal voice mode (a mode in which the entire key range can be played with a single tone color) are switched. On the other hand, keep this switch for a long time (for example, 1 second or longer).
When you operate it, the left voice confirmation state where you can check the tone that is set as the left voice in the left keyboard range is displayed.While this switch is pressed, the LED of the tone that is set as the left voice lights up. When the switch operation is completed, the LED of the tone color set in the original right key range (in the left voice mode) or the entire key range (in the normal voice mode) lights up. In this way, when this switch is operated for a short time, the mode changes,
When this switch is operated for a long time, the mode is not switched, so that only one switch needs to be provided for the two functions, the complexity of the panel surface can be avoided, and the cost can be reduced. Further, in order to confirm the set tone color, a relatively long time is required as its recognition time, but a long time is not required when only switching modes. Therefore, in the present invention, the operation is controlled such that the mode is switched during a short-time operation and the set tone color is confirmed during a long-time operation. Further, when the tone color selection switch 7-1 is operated while operating the left voice switch, the tone color set for the left voice can be changed.

A switch 7-3- provided near the keyboard
1, 2, and 3 are split point switches. The switch 7-3-1 is a first split point switch, and is a switch for dividing the key range between F # and G into two. The switch 7-3-2 is a second split point switch, and is a switch for dividing the key range between B and C on the treble side of the position designated by the switch 7-3-1. The switch 7-3-3 is a third split point switch, and is a switch for dividing the key range into two between F # and G, which is one octave higher than the position designated by the switch 7-3-1. . Then, an LED that displays the currently set split point is provided near each split point switch.
Since each split point switch and LED are provided in the vicinity of the keyboard and at a position corresponding to the split position, it is possible to easily determine what to do when changing the split position. Since the switch is provided for each divided position, the divided position can be set to a desired position by one operation, and the setting operation is very easy.

The switch 7-4 is a power switch.
By turning on this switch, the operation of the electronic musical instrument is started.

The switch 7-5 is a registration switch. Registration is a set of settings of various switches on the panel that are stored, and the desired settings can be reproduced with one touch by operating any of the registration switches 7-5. Is. In each registration data, the initial data of the second timbre set in the left key area in the left voice mode is also stored. Therefore, a suitable second tone color is automatically set when the left voice mode is set according to the selected registration. Further, as will be described later, it is possible to set a tone color arbitrarily selected by the user as the second tone color, instead of the second tone color which is initially set. Many switches (for example, switches related to automatic rhythm performance) other than the above-mentioned switches are provided on the operation panel surface, but the description thereof will be omitted here.

Next, a flow chart of processing by the CPU 1 will be described with reference to FIGS. FIG. 3 shows the main routine. When the power switch 7-4 is turned on, the main routine is started. First, in step S1, initialization processing such as RAM clearing and initial setting of various registers is performed. Next, a keyboard process is performed in step S2, a switch process is performed in step S3, and other processes are performed in step S4. Then, the process returns to step S2 and the above process is repeated.

The details of the keyboard processing in step S2 are shown in FIG. In step S11, it is determined whether or not there is a key event,
If a key event is detected, the process proceeds to step S12, and if not detected, the process returns. Step S
At 12, it is determined whether or not the value of the flag LVMODE indicating whether the left voice mode is set is 1. 0,
That is, when it is the normal voice mode, the process proceeds to step S13, and it is determined whether or not the detected key event is a key-on event. If Yes, a sounding process with the first tone color is performed in step S14. Where the first
The timbre is a timbre set in the entire key range in the normal voice mode and the right key range in the left voice mode. In this case, since it is the normal voice mode, a musical tone is generated with the same tone color regardless of which key range of the keyboard is operated. On the other hand, when No is determined in step S13, it means that the key-off event is detected, and in step S15
Mute processing for the first tone color is performed. Since the sound generation and mute processing are well known, detailed description thereof is omitted here.

When the left voice mode is set, it is determined Yes in the process of step S12. In this case, in step S16, it is determined whether the detected key event is a key-on event. In the case of a key-on event, it is determined in step S17 whether the key code of the key-on event is above the currently set split point. If it is above the split point, the tone generation processing with the first tone color is executed in step S18, and if it is below the split point, the tone generation processing with the second tone color is executed in step S19. In the process of step S19, the key code in the left key range may be octave-shifted if necessary.

When it is determined in step S16 that the detected key event is a key-off event, it is determined in step S20 whether the key code of the key-off event is higher than the currently set split point. . If above the split point, step S21
In step S22, the muffling process for the first tone color is executed, and in the lower case, the muffling process for the second tone color is executed. As described above, in the left voice mode, when the right key range of the keyboard is operated, a musical tone is generated with the first tone set in the right key range, and when the left key range is operated, the left key range is generated. A tone is generated with the second tone color set to.

Next, regarding the switch processing in step S3, the processing corresponding to each switch will be described. Only the specific switches relevant to the present invention will be described here. FIG. 6 is a flowchart showing the processing of the left voice switch. In step S31, it is determined whether or not there is a left voice switch event. When there is an event, the process proceeds to step S32, and it is determined whether or not the event is a switch-on event. In the case of a switch-on event, the process proceeds to step S33, and if the LED provided in the vicinity of the left voice switch is not lit, it is lit to display that it is currently in a state related to the left voice. If the LED provided near the split point switch is not lit, the LED corresponding to the set split point is lit. Then, in step S34, the register COU for counting the switch operation duration time
The NT is set to 10 and the flag LVSW indicating that the left voice switch is operated is set to 1. The value of the register COUNT is 100 ms described later.
It is decremented in each timer interrupt process, and the above-mentioned value 10 corresponds to 1 second. After this, the process returns to the main routine.

When it is determined No in step S32, that is, when the switch event is the switch-off event, the process proceeds to step S35 and the flag C is set.
It is determined whether ONFIRM is 1. The flag CONFIRM is a flag indicating that the tone color currently set as the left voice is in a state of being confirmed. As mentioned above, the left voice switch for a long time,
For example, when the button is held down for 1 second or longer, the left voice confirmation state is set. In this left voice confirmation state, the flag CONFIRM is 1. The value 10 corresponding to 1 second set in the register COUNT described above is for measuring the time during which the left voice switch is kept pressed.

If the flag CONFIRM is 0, that is, if it is not in the left voice confirmation state, the process proceeds to step S36 and the value of the flag LVMODE is inverted. As a result, when the value of the flag LVMODE becomes 1, it is determined as Yes in step S37, the first tone color is set in the right key range and the second tone color is set in the left key range in step S38, and the right and left sides of the split point are set. The left voice mode allows you to play with different tones. On the other hand, if No in step S37, the first tone color is set in the entire key range in step S39, and the normal voice mode is set. Then, in step S40, the LED near the left voice switch and the LED near the split point switch are turned off. In this way, the flag CONFIRM becomes 0 when the left voice switch is turned off.
If it is, it is considered that the left voice switch has been operated to switch the performance mode, and the mode switching process as described above is executed.

When it is determined Yes in step S35, the process proceeds to step S41, and it is determined whether or not the value of the flag LVMODE is 0. When it is 0, it means that the tone color set as the left voice in the normal voice mode has been confirmed, so that each LED turned on in step S33 is turned off in step S42. That is, in this embodiment, even in the normal voice mode, the tone color set as the left voice can be confirmed in the left voice mode. On the other hand, when the value of the flag LVMODE is 1, the left voice mode remains in the left voice mode even if the left voice switch is turned off, and it is not necessary to turn off each LED. Therefore, step S42 is skipped. Then, in step S43, the flag CO
Reset NFIRM to 0. After this, or after step S38 and step S40, the process proceeds to step S44, resets the register COUNT and the flag LVSW to 0, and returns to the main routine.

Now, the timer interrupt processing executed by interrupting the main routine every 100 ms will be described. In step S51, the register CO
It is determined whether or not the value of UNT is 0, and if it is 0, the timer interrupt processing is ended as it is. On the other hand, register C
If the value of COUNT is not 0, that is, is 1 or more, the process proceeds to step S52, and the value of the register COUNT is decremented. As a result, it is determined in step S53 whether or not the value of the register COUNT becomes 0, and Yes.
If so, the flag CONFIRM is set to 1 in step S54. That is, when it is determined Yes in step S53, interrupt processing is performed 10 times from the time when the value of the register COUNT is set to 10 in FIG. 6 and step S34 described above, and when the left voice switch is turned on, One second has passed. Therefore, the flag CONFIRM is set to 1 to enter the left voice confirmation state. After this, or in step S53
If No is determined, the timer interrupt process is terminated and the process returns to the main routine.

Returning to the description of the main routine, the voice switch process of FIG. 7 will be described. In step S61, it is determined whether or not there is a switch event of the voice switch 7-1. When it is determined, the process proceeds to step S62, and it is determined whether or not it is a switch-on event. In the case of a switch-on event, the process proceeds to step S63, and it is determined whether the flag LVSW is 1.
In the case of Yes, it means that the voice switch is pushed while pushing the left voice switch, so the second tone color relating to the left keyboard range is changed to the tone color of the operated voice switch. When it is determined No in step S63, the first tone color related to the right key range or the entire key range is changed to the tone color of the operated voice switch in step S64. After this, or in the processing of step S61 and step S62, N
When it is determined to be o, the voice switch process is ended.

Next, the split point switch process of FIG. 8 will be described. In step S71, it is determined whether or not there is an event of any split point switch, and if Yes, it is determined in step S72 whether or not the event is an on event of the first split point switch. If Yes, the process proceeds to step S73 to set the split point at the first position. Then, in step S78, the flag LVMODE is set.
Is 1 or not, and if it is 1, step S79
Then, the LED provided near the switch is turned on, and the LEDs near the other split point switches are turned off.
If No is determined in step S78, step S78
The processing of 79 is omitted. That is, when the split point switch is operated in a state other than the left voice mode, the split point setting is changed, but since the left voice cannot be played, the split switch LED is not turned on.

When No is determined in step S72, the process proceeds to step S74, and it is determined whether or not the event is an on event of the second split point switch. If Yes, the process proceeds to step S75 to set the split point at the second position. When No is determined in step S74, the process proceeds to step S76, and it is determined whether or not the event is the on event of the third split point switch. If Yes, step S7
Proceed to 7 to set the split point to the third position. After these steps S75 and S77, the process proceeds to step S78, and the same process as the process after step S73 is performed. The determination of No in step S76 is made when the event is an off event of any of the split point switches, and the split point switch process is ended as it is.

In the embodiment, when the left voice switch is operated for longer than about 1 second, the left voice confirmation state is set, and when it is operated for a shorter time, the left voice mode is switched. The time to switch the function is not limited to about 1 second.

The position at which the key range is divided, the number of divisions, etc. are not limited to those in the embodiment. For example, when the key range is divided into three, normally, the tone color of the first key range is displayed, and if the operation time of the split switch (switch for specifying the key range division performance mode) is within 1 second, mode switching, 1 second or more,
The tone color to be displayed may be changed according to the time, such as displaying the tone color of the second key range within 2 seconds and displaying the tone color of the third key range within 2 seconds. The tone color may be confirmed in another display form.

The operator for designating the key range division position is not limited to the plurality of switches corresponding to each division position,
It may be a slide switch having a click at each divided position.

[0032]

As described above, in the first invention, in the electronic musical instrument provided with the keyboard having a plurality of keys and the musical tone generating means for generating the musical tone signal based on the keyboard operation, The keyboard is divided into a plurality of areas, and the first performance mode in which the tone color of the generated tone signal is different for each divided area, and the second performance mode in which the tone signal of the same tone color is generated in all areas of the keyboard And a control operation for switching the mode between the first and second performance modes when the operation time of the mode operation operator for specifying any of the above is shorter than a predetermined time. Is longer than a predetermined time, the different tone colors can be confirmed, and the control means for controlling the mode switching is not performed. Therefore, by operating one mode designating operator. Can perform the functions of both the confirmation of the performance mode switch and tone, it is possible to avoid complication of the panel surface, leading to cost reduction. In addition, operability is also good.

According to the second aspect of the present invention, there is provided a keyboard having a plurality of keys and a tone generating means for generating a tone signal based on the keyboard operation. The keyboard is divided into a plurality of areas and the divided areas are divided. A tone signal of the generated tone signal is different for each, and a plurality of operators for selecting and specifying the position for dividing the keyboard area from a plurality of positions, each operator being in the vicinity of the keyboard. And a setting for setting the position of dividing the keyboard area to the position corresponding to the operated operator, based on the operation of the operator, which is provided at each of the positions corresponding to the dividing position. Since the means is provided, the division position can be easily set.

[Brief description of drawings]

FIG. 1 is a block diagram showing a hardware configuration according to an embodiment of the present invention.

FIG. 2 is a diagram showing a panel surface in an example of the present invention.

FIG. 3 is a diagram showing a processing flowchart (main routine) by the CPU in the embodiment of the present invention.

FIG. 4 is a diagram showing a processing flowchart (timer interrupt processing) by the CPU in the embodiment of the present invention.

FIG. 5 is a diagram showing a processing flowchart (keyboard processing) by the CPU in the embodiment of the present invention.

FIG. 6 is a diagram showing a processing flowchart (left voice switch processing) by the CPU in the embodiment of the present invention.

FIG. 7 is a diagram showing a processing flowchart (voice switch processing) by the CPU in the embodiment of the present invention.

FIG. 8 is a diagram showing a processing flowchart (split point switch processing) by the CPU in the embodiment of the present invention.

[Explanation of symbols]

1 ... CPU, 3 ... ROM, 4 ... RAM, 5 ... Keyboard, 7 ...
Switch, 9 ... Display circuit, 10 ... Sound source circuit, 12 ... MI
DI interface

Claims (2)

[Claims] 1. An electronic musical instrument comprising a keyboard having a plurality of keys and a musical tone generating means for generating a musical tone signal based on the keyboard operation, wherein the keyboard is divided into a plurality of regions, and the divided regions are divided. A first performance mode in which the tone color of the generated tone signal is different for each
A mode designating operator for designating one of the second performance modes for generating musical tone signals of the same tone color in all areas of the keyboard; and when the operation time of the mode designating operator is shorter than a predetermined time, Control is performed so as to switch the mode between the first and second performance modes, and when the operation time is longer than a predetermined time, it is possible to confirm the different tones.
And an electronic musical instrument characterized by having control means for controlling so as not to perform mode switching. 2. A keyboard provided with a plurality of keys, and a musical tone generating means for generating a musical tone signal based on the keyboard operation, wherein the keyboard is divided into a plurality of regions, and the divided regions are generated. A plurality of operators for selecting and designating a position for dividing the keyboard area from a plurality of positions, and each operator is near the keyboard, and And a setting unit that sets a position that divides the keyboard area to a position that corresponds to the operated operator, based on the operation of the operator, that is provided at each position corresponding to the position. An electronic musical instrument characterized by that.