JPH0519753A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To enable smooth transition in performance mode which conforms to the intention of a player by putting the electronic musical instrument in a 2nd mode when a 3rd operation element which operates effectively only in the 2nd mode is operated in a 1st mode. CONSTITUTION:A mono switch 120 (1st and 2nd operation elements) is a switch for switching between a polyphonic mode as the 1st mode which is one of performance modes and a monophonic mode as the 2nd mode and the mode is inverted each time the switch is pressed. A portamento switch 121 (3rd switch) is a switch which is effective only in the monophonic mode and the mode is inverted between portamento specification and normal sound generation specification each time the switch is pressed. A CPU 13 controls the operation elements and a display unit according to a control program stored in a RAM 14 and when the portamento switch 121 is operated, the automatic transition from the polyphonic mode to the monophonic mode is performed and a portamento function can be executed.

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 such as a marching keyboard, and more particularly to an electronic musical instrument that smoothly transitions between a plurality of operation modes.

In recent years, various electronic musical instruments have been developed and put into practical use. Such an electronic musical instrument has various playing modes, and can be played in an optimal playing mode according to the purpose and purpose of playing.

The number of such performance modes tends to increase as electronic musical instruments have higher functionality and technological advances. As the number of playing modes increases, the number of switches on the operation panel also increases, which complicates the operation of the electronic musical instrument itself.

Therefore, there is a demand for an electronic musical instrument that can be played by a simple operation.

[0005]

2. Description of the Related Art Conventionally, in an electronic musical instrument having a plurality of performance modes, a mode selection switch for selecting the performance mode is provided, while various switches for instructing a predetermined operation in each performance mode are provided. It is common.

However, there is no problem when the above-mentioned various switches are given a predetermined function in all the playing modes, but a switch which is not given a function in a particular playing mode (hereinafter referred to as "unallocated switch"). .) May exist.

In such a case, even if the operator depresses the unallocated switch in the specific performance mode, the electronic musical instrument does not show any reaction. Therefore, there is a drawback that the operator determines that there is a failure or a defect.

Further, when a switch provided with a predetermined function in a specific performance mode becomes an unassigned switch due to a change in the performance mode, the switch is left in its original state. However, there is a case where the function based on the switch is erroneously tried to be operable even though it is inoperable. Also in this case, the operator has a drawback that he / she determines that there is a failure or a defect.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an electronic musical instrument having excellent operability in which the performance mode can be changed in accordance with the intention of the operator. And

[0010]

The electronic musical instrument of the present invention comprises:
In order to achieve the above object, in an electronic musical instrument having at least first and second modes as operation modes, a first operator for shifting to the first mode,
A second manipulator for shifting to the second mode; a third manipulator that works effectively only when the second manipulator is in the second mode; and the first manipulator. It is characterized by further comprising first control means for shifting to the second mode when the third operator is operated in the mode.

Further, for the same purpose, in an electronic musical instrument having at least first and second operation modes, a first operator for shifting to the first mode and a second mode. A second manipulator for shifting, a third manipulator that works effectively only when the second manipulator is in the second mode, and the third manipulator when in the second mode. When the first manipulator is operated,
And a second control means for initializing the state by the third operator.

[0012]

According to the present invention, in the electronic musical instrument having at least the first and second modes as the operation mode, when the third operating element which is effective only in the second mode is operated, the electronic musical instrument becomes the first Even in the mode, the mode automatically shifts to the second mode and changes to the state instructed by the third operator.

Further, in an electronic musical instrument having at least first and second operation modes, when the electronic musical instrument is in the second mode and is set to a predetermined state by the third operator, When the first manipulator is operated, the state set by the third manipulator is initialized to shift to the first mode.

As a result, the state in which the function is not assigned to the operator that is effective only in the predetermined mode is eliminated, and the situation in which the operator determines that there is a failure or a defect can be avoided. Therefore, the performance mode can be changed in accordance with the intention of the operator, and the operability is excellent.

[0015]

1 is a block diagram schematically showing the overall structure of an electronic musical instrument according to the present invention.

In the figure, reference numeral 11 is a keyboard for instructing the pitch of a musical tone during performance. The keyboard 11 includes a plurality of keys, a key switch that opens and closes in association with key press / release of these keys, a key scan circuit that detects the open / closed state of these key switches, and a touch detection circuit ( Neither is shown).

The key scan circuit detects a key pressing operation and a key releasing operation of the performer, that is, a key on / off, and detects the detected on / off.
The OFF state is transmitted to the CPU 13 together with the key number. The CPU 13 sends this key on / off information to the RA
Store in M15.

The touch detection circuit is a well-known circuit that detects the strength (speed) of the key touch of the turned-on key detected by the key scan circuit and outputs it as touch data.

An operation panel 12 includes a mode selection switch, various switches effective in the mode selected by the mode selection switch, an indicator, and other switches and indicators.

In this embodiment, a mono switch 120 is provided as an example of the mode selection switch, and a portamento switch 121 is provided as a switch effective in the mode selected by the mode selection switch. Also, the mono switch 12
A mono display 122 interlocking with 0 and a portamento display 123 interlocking with the portamento switch 121 are provided.

The mono switch 120 (first and second operators) has a polyphonic mode (hereinafter abbreviated as "poly mode") as a first mode which is one of the performance modes, and a second mode. And a monophonic mode (hereinafter, abbreviated as “mono mode”), which is realized as a toggle switch whose mode is inverted each time the button is pressed (details will be described later).

When the mono mode is set by the mono switch 120, the mono display 1 composed of, for example, an LED is used.
When 22 is turned on and the poly mode is set, the mono display 12
2 is controlled to be turned off.

The portamento switch 121 (third switch) is a switch that is effective only in the mono mode, and functions as a toggle switch that inverts the portamento designation and the normal sounding designation each time the button is pressed.

With this portamento switch 121,
When the portamento designation is made, the portamento display 123 composed of, for example, an LED is turned on, and when the normal sounding designation is made, the portamento display 123 is controlled to be turned off.

As other switches and indicators, although not shown in the figure, various switches such as a tone color selection switch, an effect selection switch, a volume control lever, and a display for displaying various messages are provided. .

The setting state of each switch mounted on the operation panel 12 is detected by a panel scan circuit included inside the operation panel 12. This operation panel 12
The data related to the setting state of the switch detected by the panel scan circuit is stored in the RAM 15 under the control of the CPU 13.

Operation panel 1 stored in the RAM 15
The data regarding the setting state of the switch of 2 is
In addition, it is referred to by the CPU 13 or the like as necessary.

A central processing unit (CPU) 13 controls each section of the electronic musical instrument in accordance with a control program stored in a program memory section of a read only memory (ROM) 14. The control of the controls and the display, which is a feature of the present invention, is also performed by the CPU 13 (details will be described later).

The ROM 14 stores various fixed data such as tone color data, automatic performance data and the like, in addition to the control program for operating the CPU 13 described above.

15 is a random access memory (RAM)
Is. The RAM 15 is allocated with a work area used by the CPU 13, a register for storing status information, control information, and the like.

An area for storing the on / off state of the keyboard 11 and the set states of various switches on the operation panel 12 is also provided in the RAM 15.

Reference numeral 16 is a tone generation circuit, which reads tone waveform data corresponding to a designated tone color from a waveform memory (not shown) in accordance with control information supplied from the CPU 13 and creates an envelope corresponding to the tone color and volume. An envelope is added to the musical tone waveform data that has been generated and read out earlier, and is output as a digital musical tone signal.

The tone generation circuit 16 outputs a digital tone signal (Lch) for the left channel and a digital tone signal (Rch) for the right channel, respectively D / A.
It is sent to the converter 17.

The D / A converter 17 converts the input digital tone signals for both left and right channels into analog tone signals. The analog tone signals for the left and right channels converted by the D / A converter 17 are supplied to amplifiers 18a and 18b, respectively.

The amplifiers 18a and 18b amplify the input analog tone signals for both the left and right channels with a predetermined gain and supply them to the left channel speaker 19a and the right channel speaker 19b.

The speakers 19a and 19b convert the input analog musical tone signal as an electric signal into an acoustic signal. That is, the musical tone is emitted according to the generated musical tone signal.

The keyboard 11, operation panel 12 and C
PU13, ROM14, RAM15 and tone generation circuit 1
6 are connected to each other via a system bus 30.

Next, the operation of the embodiment of the present invention having the above-mentioned structure will be described with reference to the flow charts of FIGS.

When the power is turned on, first, the main routine shown in FIG. 2 is started. Then, the initial setting process is executed (step S10).

The contents of this initial setting process are shown in the flowchart of FIG. In the initial setting process, first, a process of setting the poly mode is performed (step S20).
Specifically, the performance mode identification flag is cleared to "0". Here, the performance mode identification flag is a 1-bit (or 1-byte) flag provided in the RAM 15,
“1” indicates the mono mode, and “0” indicates the poly mode.

Then, the mono display 122 is turned off (step S21). This is because the CPU 13 operates the operation panel 1
This is done by sending predetermined data to 2.

Then, portamento-off processing is performed (step S22). Specifically, the portamento identification flag is cleared to "0". Here, the portamento identification flag is 1 bit (or 1) provided in the RAM 15.
Byte) flag, "1" indicates portamento on, and "0" indicates portamento off.

Then, the portamento indicator 123 is turned off (step S23). This is also performed by the CPU 13 sending predetermined data to the operation panel 12.

In the initialization processing, in addition to the above processing, initialization of various hardware and initialization of various registers and flags provided in the RAM 15 are performed. Then, when this initial setting process is completed, the process returns to the main routine.

In the main routine, it is checked whether or not there is a panel event (step S11). this is,
The CPU 13 compares the data obtained from the panel scan circuit this time and the data obtained from the panel scan circuit last time with the data already stored in the RAM 15 to check whether there is any change. Be seen.

When it is determined that there is a panel event, panel processing is executed (step S1).
2). If it is determined that there is no panel event, this panel processing is skipped.

The operation of the panel processing is shown in FIG. In the panel processing, it is first checked whether or not the switch having the panel event is the mono switch 120 (step S30). When it is determined that the mono switch 120 is selected, it is checked whether or not the current performance mode is the mono mode (step S31).

When it is determined that the current performance mode is not the mono mode, that is, the poly mode, the mono mode is set (step S36). That is, the performance mode identification flag is set to "1". Next, the mono display 122 is turned on (step S37), and the process returns from this panel processing routine. As a result, thereafter, the operation is performed in the mono mode.

On the other hand, when it is determined in step S31 that the current performance mode is the mono mode, first, the poly mode is set (step S32). That is, the performance mode identification flag is reset to "0". Then, the mono display 122 is turned off (step S33). By the steps S31 to 33, S36, and S37, the toggle operation of the mono switch 120 and the accompanying lighting / extinguishing control of the mono display 122 are realized.

Next, a process for setting portamento off is performed (step S34). That is, the portamento identification flag is reset to "0". Then, a process of turning off the portamento indicator 123 is performed (step S35), and thereafter, the process returns from this panel processing routine. The initialization of the portamento function is realized by these steps S34 and S35.

As described above, when the mono mode is switched to the poly mode, the portamento function which is effective only in the mono mode is initialized. Therefore, it is erroneously recognized that the portamento function is effective even in the poly mode. It will not be held by the operator.

On the other hand, when it is determined in step S30 that the switch having the panel event is not the mono switch 120, it is checked whether or not it is the portamento switch 121 (step S38).

When it is determined that the portamento switch 121 is present, it is checked whether or not portamento is currently on (step S39). this is,
This is done by checking the portamento identification flag stored in the RAM 15.

When it is determined that portamento is on, portamento is set to off (step S
44). That is, the portamento identification flag is reset to "0". Next, the portamento indicator 123 is turned off (step S45), and the process returns from this panel processing routine. As a result, the portamento function does not operate thereafter, and normal monophonic sound is produced.

On the other hand, if it is determined in step S39 that portamento is not on, first, the mono mode is set (step S40). That is, the performance mode identification flag is set to "1". Next, the mono display 122 is turned on (step S41).

Steps S39-41, S44, S4
5, toggles the portamento switch 121,
And lighting of the naupa portamento indicator 123 accompanying this /
The extinguishing control is realized. Also, when in poly mode, portamento switch 12 is only effective in mono mode.
The function of automatically shifting to the mono mode when 1 is pressed is realized.

Next, a process for setting portamento on is performed (step S42). That is, the portamento identification flag is set to "1". Then, a process of turning on the portamento indicator 123 is performed (step S43), and thereafter, the process returns from this panel processing routine. By these steps S34 and S35, the process of entering the state in which the portamento function can be used is realized.

In step S38, the switch having the switch event is the portamento switch 121.
If it is determined that this is not the case, other switch processing is performed (step S46), and then the panel processing routine returns. This "other switch process" includes a tone color change process, a volume change process, and the like.

In the main routine returned from this panel processing routine, it is checked whether or not there is a key event (step S13). This is because the CPU 13 compares the data obtained by scanning the keyboard 11 this time with the data obtained by scanning the keyboard 11 last time, which is already stored in the RAM 15,
This is done by checking if there are any changes.

When it is determined that there is no key event, the process returns to step S11 and the same processing as described above is repeatedly executed.

When it is judged in the step S13 that there is a key event in the process of the repeated execution, it is checked whether or not the mono mode is set (step S1).
4). Then, if it is determined that the mode is not the mono mode, that is, the poly mode, the process for determining the tone generation channel is performed by the poly-assigner (step S15).

The determination of the tone generation channel by the poly-assigner is a process in which the CPU 13 controls the tone generation circuit 16 to assign the tone generation of the depressed key to the empty channels of the plurality of tone generation channels.

Then, a normal tone generation process is performed (step S16), and then the process branches to step S11, and the same process as described above is performed again. In the normal tone generation process, the tone generation circuit 16 outputs a plurality of tone signals via a plurality of channels, synthesizes them, and outputs them as digital tone signals to the D / A converter 17. This digital musical tone signal is converted into an analog musical tone signal by the D / A converter 17, amplified by the amplifiers 18a and 18b, and emitted from the speakers 19a and 19b. As a result, a plurality of musical tones are produced at the same time.

On the other hand, when it is determined in step S14 that the mode is the mono mode, the mono assigner determines the tone generation channel (step S17).

The determination of the tone generation channel by the mono assigner is a process in which the CPU 13 controls the tone generation circuit 16 to assign the tone generation of the depressed key to one predetermined tone generation channel. At this time, if the sounding channel is sounding, a process for forcibly stopping the sounding is performed.

Then, it is checked whether or not the portamento function is designated (step S18). This is R
This is done by checking the portamento identification flag in AM15. If it is determined that the portamento is not specified, that is, the portamento identification flag is "0", the process branches to step S16, and the normal sounding process is performed. At this time, since the sound generation channels are assigned by the mono-assigner, only one sound is sounded.

On the other hand, if it is determined that portamento is designated, portamento tone generation processing is performed (step S19). This portamento sounding process is a process of sounding from the pitch of the first pressed key to the pitch of the next pressed key while changing the pitch at a predetermined speed. When this portamento tone generation process is completed, the process returns to step S11 and the same process as described above is repeated.

As described above, according to this embodiment, in the electronic musical instrument having the polyphonic mode and the monophonic mode as the operation modes, when the portamento switch 121 effective only in the monophonic mode is operated, the electronic musical instrument is switched to the polyphonic mode. Even so,
The mode is automatically changed to the monophonic mode and is changed to a state instructed by the portamento switch 121, that is, a state in which the portamento function can be executed.

Similarly, when the electronic musical instrument is in the monophonic mode, the portamento switch 12
When the mono switch 120 is operated when the portamento function can be executed by 1, the state set by the portamento switch 121, that is, the state in which the portamento function can be executed is released to shift to the polyphonic mode. It was done like this.

As a result, the state in which the function is not assigned to the switch that is effective only in the specific mode is eliminated, and the situation in which the operator determines that there is a failure or a defect can be avoided. Therefore, the performance mode can be changed in accordance with the intention of the operator, and the operability is excellent.

In the above embodiment, the mono switch 120 is used as an example of the mode selection switch, and it is configured to switch between the poly mode and the mono mode.
The case where the portamento switch 121 is used as a switch effective in the mono mode by the mono switch 120 has been described, but a mode selected by another mode selection switch and a switch effective only in the mode selected by the mode selection switch. With respect to the above, it can be applied in the same manner as the above-mentioned embodiment, and the same effect as that of the above-mentioned embodiment is obtained.

[0072]

As described in detail above, according to the present invention, it is possible to provide an electronic musical instrument having excellent operability, which enables the transition of the performance mode according to the intention of the operator.

[Brief description of drawings]

FIG. 1 is a block diagram schematically showing an overall configuration of an embodiment of an electronic musical instrument to which the present invention is applied.

FIG. 2 is a main flowchart showing the operation of the embodiment of the present invention.

FIG. 3 is a flowchart showing an initial setting process according to an embodiment of the present invention.

FIG. 4 is a flowchart showing panel processing according to an embodiment of the present invention.

[Explanation of symbols]

11 keyboard 12 Operation panel 13 CPU (first and second control means) 14 ROM 15 RAM 16 tone generation circuit 17 D / A converter 18a, 18b amplifier 19a, 19b speakers 120 Mono switch (first and second controls) 121 Portamento switch (3rd switch) 122 Mono display (first and second display means) 123 Portamento indicator (third display means)

Claims (4)

[Claims] 1. An electronic musical instrument having at least a first and a second mode as an operation mode, a first operating element for shifting to the first mode, and a first operating element for shifting to the second mode. A second manipulator, a third manipulator that works effectively only when the second manipulator is in the second mode, and a third manipulator when in the first mode The electronic musical instrument comprises: a first control unit that shifts to the second mode when is operated. 2. An electronic musical instrument having at least a first and a second mode as an operation mode, a first operating element for shifting to the first mode, and a first operating element for shifting to the second mode. A second manipulator, a third manipulator that works effectively only when the second manipulator is in the second mode, and a first manipulator when in the second mode The electronic musical instrument is characterized by further comprising: second control means for initializing a state by the third operator when is operated. 3. The first display means for displaying that the first operating element is in a first mode, and the second display for displaying that the second operating element is in a second mode. Means
The electronic musical instrument according to claim 1 or 2, wherein each of the third operating elements has a third display means for displaying a state of the third operating element. 4. The first operator and the second operator are the same operator, and the first mode and the second mode are alternately switched. The electronic musical instrument according to any one of 1 to 3.