JP3375220B2 - Electronic musical instrument - Google Patents

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 having a pitch adjusting function, which can automatically switch to a continuous tone at the time of pitch adjustment and can return to the original tone color when the pitch adjustment is completed.

[0002]

2. Description of the Related Art Many conventional electronic musical instruments such as electronic pianos have a pitch adjusting function for adjusting pitch with other musical instruments.

FIG. 4 is a block diagram for explaining the structure of the main part related to the pitch adjustment of the conventional electronic musical instrument.

When adjusting the pitch with the conventional electronic musical instrument as shown in the figure, for example, the system switch and the editor are operated to enter the pitch adjustment mode, and the value switch is turned on while pressing the keyboard to listen to the sound produced. I was adjusting the sound by operating it.

Therefore, if the timbre immediately before entering the pitch adjustment mode is not a continuous tone like that of an organ, the keyboard must be pressed many times during pitch adjustment to make the pitch adjustment operation troublesome. It was

In order to save the trouble, there is also a method of changing the tone color generated in the edit mode to a continuous tone and adjusting the pitch with the value switch when adjusting the pitch. In this case, when the pitch adjustment is completed, There was a need for an operation to restore the sound that was produced to the original sound, and there was a need for improvement.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an electronic device capable of automatically switching to a continuous tone at the time of pitch adjustment and automatically returning to the original tone color after the pitch adjustment is completed. The purpose is to provide musical instruments.

[0008]

SUMMARY OF THE INVENTION The present invention is an electronic musical instrument having a pitch adjusting function, wherein a mode switching instructing means for instructing switching between a playing mode and a pitch adjusting mode, and a pitch adjusting mode by the mode switching instructing means. Is designated, the tone color data of the continuous tone or the tone color at the time of playing is selected in accordance with the mode switching means for switching the read tone color to the tone color of the continuous tone and the pitch adjustment mode or the performance mode instructed by the mode switching instruction means. It is characterized by comprising a tone color data reading means for reading data and a tone color data storage means for storing the tone color data read by the tone color data reading means.

The tone color data reading means according to the present invention comprises:
When the mode switching instructing means instructs the switching from the pitch adjustment mode to the performance mode, the tone color data set before the mode adjustment means switches to the pitch adjustment mode is read.

Further, the tone color data storage means according to the present invention is characterized in that tone color data read in the performance mode and tone color data of the continuous tone read in the pitch adjustment mode are separately stored.

The timbre of the continuous tone produced in the pitch adjustment mode according to the present invention is characterized in that the timbre data of the continuous tone is selected from the timbre data stored in the timbre data storage means and is produced. .

[0012]

In the electronic musical instrument of the present invention, when the pitch adjustment mode changeover switch 3B is operated to switch from the normal performance mode to the pitch adjustment mode, the timbre to be automatically generated is a predetermined continuous tone. Switch.

When the pitch switching is completed and the mode switching unit 12 switches to the normal performance mode, the pitch setting mode is exited and the tone color set before the pitch adjustment is restored.

Therefore, the player can press the key once at the time of pitch adjustment and then change the parameter while actually listening to the change in pitch.

At the end of the pitch adjustment, it is possible to return to the original tone color by a simple operation of operating the pitch adjustment mode changeover switch 3B.

This makes it possible to provide an electronic musical instrument which is very easy to use because it is not necessary to perform various operations with both hands or to change the timbre by operating an editor when adjusting the pitch.

[0017]

1 is a schematic block diagram showing the overall construction of an electronic musical instrument according to the present invention. In each drawing, the same parts are denoted by the same reference numerals.

In the figure, 100 is a CPU, and 20
Reference numeral 0 is a ROM, 300 is a RAM, 1 is a keyboard, 2 is a key depression detection unit, 3 is an operation panel, 4 is a panel scan circuit, 5 is a tone signal generation unit, 6 is an amplifier, and 7 is a speaker.

The CPU 100 controls each part of the electronic musical instrument according to a control program stored in the program memory part of the ROM 200. The CPU 1
00, a control unit 13 and a tone color data reading unit 14 are provided.

The control unit 13 detects the setting state of the pitch adjustment mode changeover switch 3B and switches the mode changeover unit 12 accordingly, or controls the tone color data reading unit 14 to read the tone color data at a predetermined tone generation timing. It is something to put out.

The tone color data reading section 14 includes a tone color storage section 16
Based on the tone color stored in the tone color data storage unit 15
To read out predetermined tone color data. The tone color data read at the time of pitch adjustment related to the present invention is previously switched to the tone color data of a predetermined continuous tone by the control unit 13 according to the operation of the pitch adjustment mode changeover switch 3B.

The tone color data read by the tone color data reading section 14 is sent to the tone signal generating section 5. The operation of the tone color data reading section 14 will be described in detail with reference to FIG.

The ROM 200 stores various fixed data in addition to the program for operating the CPU 100 described above. The function of the tone color data storage unit 15 provided in the ROM 200 will be described in detail with reference to FIG.

In the RAM 300, a work area of the CPU 100, various registers for controlling the electronic musical instrument, counters, flags and the like are defined, and necessary data out of the data stored in the ROM 200 is transferred. It has a data area for temporary storage.

Also, a plurality of registers in which data necessary for sound emission corresponding to the states of the keys and switches of the operation panel section 3 are set, data regarding the setting states of the switches of the operation panel section 3, and the on / off state of the keyboard 1. A key depression map and a note-on counter for storing the off state are also provided in the RAM 300.

The function of the tone color storage section 16 provided in the RAM 300 will be described in detail with reference to FIG.

The keyboard 1 is used for designating a musical tone to be generated, and is composed of a plurality of keys and a key switch which opens and closes in conjunction with key pressing / release operations of these keys. The key depression / key release actions of the performer are detected by the key depression detection unit 2, and the detected signals are supplied to the sound generation channel assignment unit 11 (see FIG. 2) under the control of the control unit 13.

Performance information generated by pressing or releasing the keyboard 1 is stored in a predetermined area of the temporary RAM 300 and read by the CPU 100 as required.

The key-depression detecting section 2 detects the key-depressing / key-releasing operation of the player, that is, the on / off state of the key, and informs the sounding channel assigning section 11 of the detected on / off state together with the key number. Is. The control unit 13 stores the ON / OFF information of this key in the RAM 300.

On the operation panel section 3, in addition to the power switch,
Various switches and indicators such as a tone color selection switch, a mode designation switch, a melody selection switch, and a rhythm selection switch are provided. A tone color button 3A and a pitch adjustment mode changeover switch 3B which are directly related to the present invention are also provided on the operation panel 3.

The set / reset state of each switch of the operation panel 3 is detected by the panel scan circuit 4 included therein, and relates to the set state of the switch detected by the panel scan circuit 4 of the operation panel 3. The data is stored in a predetermined area on the RAM 300 under the control of the control unit 13.

In addition to the various switches described above, the operation panel 3 is provided with a display device for displaying various information.

The tone signal generator 5 reads out tone waveform data and envelope data corresponding to the signal output from the CPU 100 from the waveform memory, adds an envelope to the read tone waveform data, and outputs the tone signal. .

The tone signal output from the tone signal generator 5 is analog-converted by a D / A converter (not shown) and then supplied to the amplifier 6. Therefore, the tone signal generator 5 is connected to a waveform memory (not shown) for storing waveform data and envelope data.

The amplifier 6 amplifies the tone signal analog-converted by the D / A conversion not shown with a predetermined gain. The output of the amplifier 6 is supplied to the speaker 7.

The speaker 7 converts an analog musical tone signal as an electric signal sent from the amplifier 6 into an acoustic signal. That is, the musical tone is emitted according to the generated musical tone signal.

FIG. 2 is a block diagram showing a functional configuration of main parts relating to pitch adjustment of the electronic musical instrument of the present invention. First,
The functions of the parts not described in FIG. 1 will be described with reference to FIG.

The tone generation channel assigning section 11 assigns an internal signal sent from the key depression detecting section 2 and the tone color data reading section 14 to a predetermined tone generating channel. The musical tone information from the pronunciation channel assigning unit 11 is
It is supplied to the tone signal generator 5.

The tone color buttons 3A provided on the operation panel 3 are used by the performer to specify a tone color during the performance, and a plurality of tone color buttons are provided for each tone color.

The pitch adjustment mode changeover switch 3B is a switch for changing over between the normal performance mode and the pitch adjustment mode of the present invention. When the switch 3B is depressed, the mode changeover section 12 is connected to the ON state, and a continuous sound is produced. It is connected to a signal line 8a for reading tone color waveform data.

As a result, the tone color data read out from the tone color data storage unit 15 by the tone color data reading unit 14 is switched so as to be the tone color data of a predetermined continuous tone. For example, the value switch is operated by an editor to change the pitch. Adjustments are made.

In the present embodiment, the tone color data storage unit 15
The tone color data to be stored in the memory is described as an example in which the tone color data for performance and the tone color data of the continuous tone for pitch adjustment are separately held and switched by the mode switching unit 12, but the way of holding the memory is It is not limited to.

For example, when the control unit 13 detects that the pitch adjustment mode changeover switch 3B is depressed, the tone color data read by the program is changed over, and a predetermined specific continuous tone is selected from the tone color data for performance. The tone color data may be read out.

When the pitch adjustment is completed, the pitch adjustment mode changeover switch 3B is turned off to automatically return to the tone color set before the pitch adjustment mode is entered.

Therefore, the tone color designated before entering the pitch adjustment mode is stored in the tone color storage section 16,
When the pitch adjustment is completed, the tone color data reading section 14 reads out the tone color data set before entering the pitch adjustment mode from the tone color data storage section 15 based on the tone color stored in the tone color storage section 16 and sounds it. To be done.

Although the pitch adjustment mode changeover switch 3B is provided independently in FIG. 2, the switch is provided on the system switch 3C and the system switch 3C is provided.
May be configured to be adjusted by the editor when is set to the pitch adjustment mode.

On the other hand, the pitch adjustment mode changeover switch 3B
When is off, it is a normal performance mode, so the switch of the mode switching unit 12 is connected to the off signal line 8b,
Waveform data based on the timbre stored in the timbre storage unit 16 is read from the timbre data storage unit 15.

Therefore, the timbre designated by the timbre button 3A is once stored in the timbre storage unit 16, and when the timing of sound generation is reached, the timbre data reading unit 14 determines the timbre based on the timbre stored in the timbre storage unit 16. The predetermined tone color data is read from the data storage unit 15 and the sound generation channel assignment unit 11
Send to.

The tone color data storage unit 15 provided in the ROM 200 stores tone data of each tone color. The tone color data of the continuous tone read when the mode is switched to the pitch adjustment mode is preset in the manufacturing stage.

With this configuration, when the pitch adjustment mode changeover switch 3B is turned on, the tone color to be generated next is still stored in the tone color storage section 16 as it is, and the circuit for reading tone color data in the mode changeover section 12 outputs a signal. It is connected to the line 8a.

As a result, the tone color data read by the tone color data reading unit 14 is read from the tone color data memory of the continuous tone of the tone color data storage unit 15, and the pitch adjustment is performed.

When the pitch adjustment is completed and the pitch adjustment mode changeover switch 3B is turned off, the tone color data reading circuit in the mode changeover section 12 is connected to the signal line 8b, and the memory of the tone color data read by this is changed. Switches to the tone data memory for normal performance.

Next, the tone color data reading section 14 reads the tone color to be generated next, which is stored in the tone color storage section 16, reads the tone color data corresponding to the tone color from the tone color data storage section 15, and outputs the tone color data. It is sent to the channel allocation unit 11.

As a result, when the pitch adjustment is completed,
By operating the pitch adjustment mode selector switch 3B,
It will automatically return to the tone before entering the pitch adjustment mode.

As described above, according to the present invention, when the pitch adjustment mode changeover switch 3B is turned on, the pitch adjustment mode is set to produce a predetermined continuous tone color, the pitch adjustment is completed, and the pitch adjustment mode changeover switch 3B is turned off. When set to, it is possible to provide an easy-to-use electronic musical instrument that automatically returns to the tone color immediately before pitch adjustment.

FIG. 3 is a flow chart for explaining the pitch adjusting operation of the electronic musical instrument according to the present invention. The pitch adjusting operation will be described below with reference to FIG.

When the power switch provided on the operation panel 3 is turned on or the reset switch is pressed, initialization processing is performed (step S11).

In this initialization processing, the registers inside the CPU 100 and the registers defined inside the RAM 300 are initialized, the predetermined data and programs stored in the ROM 200 are moved to the RAM 300, and further, the tone color is set. This is processing such as initializing the pointer and setting an initial tone color.

Then, a panel scan process is performed (step S12). In this panel scan processing, the presence / absence of a panel event is determined based on the data detected by the panel scan circuit 4 of the operation panel 3, and ON / OFF information of each switch is created based on the determination result, and the RAM 30 is generated.
This is a process of storing in a predetermined area of 0.

Subsequently, the pitch adjustment mode changeover switch 3
It is checked whether or not B is turned on (step S1).
3). This is a process of determining whether or not the pitch adjustment mode is set.

When the pitch adjustment mode changeover switch 3B is not turned on, the tone color data reading section 14 reads a predetermined tone color from the tone color data storage section 15 based on the tone color stored in the tone color storage section 16, and ( Step S1
5) and proceeds to step S16.

On the other hand, when the pitch adjustment mode changeover switch 3B is turned on in step S13, the tone color data read by the tone color data reading unit 14 from the tone color data storage unit 15 is automatically converted into the tone color data of a predetermined continuous tone. And the tone color data of this continuous tone is read.

Then, a key scan process is performed (step S16). This key scanning process is a process of reading the data related to the key depression state of the keyboard 1 detected by the key depression detecting unit 2 and setting it in the new key buffer, which is operated by comparing the contents of the old key buffer and the new key buffer. Create a key event buffer in which the part corresponding to the key that has been turned on or off.

Then, the fetched event buffer is searched to determine whether or not there is a key event, that is, whether or not there is a key depression or key release operation (step 17). If there is no key event here, there is no need to perform any processing, so the processing is skipped and the process proceeds to step S21.

On the other hand, when there is a key event in step S17, it is subsequently checked whether or not the key event is an on event (step S18).

If it is determined that it is not the on event, that is, the key release event, the mute processing is performed (step S20). This muffling process is performed by the CPU 10
Reference numeral 0 is a process for sending the predetermined control information to the tone signal generator 5 to erase the tone currently being sounded.

On the other hand, if it is determined in step S18 that the event is an on event, a predetermined sounding process is performed (step S19), and the process proceeds to other processes in step S21.

"Other processing" (step S21)
Then, the switch event processing, the key event processing, and other processing according to the designation of the switch detected, for example, switch events for timbre change processing, volume change processing, rhythm selection processing, and the like are processed.

When the above process is completed, the process returns to step S12, and the same process is repeated during the performance.

In this way, according to the present invention, when the key is pressed while the pitch adjustment mode changeover switch 3B is turned on, the preset tone color data of the continuous tone is automatically changed. It is read from the data storage unit 25.

[0071]

As described in detail above, according to the present invention, the tone to be produced is continuously produced by repeatedly pressing the key during pitch adjustment or operating the tone color button on the operation panel. It is possible to provide an easy-to-use electronic musical instrument whose pitch can be easily adjusted without changing to.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing an overall configuration of an electronic musical instrument according to the present invention.

FIG. 2 is a block diagram illustrating pitch adjustment according to the present invention.

FIG. 3 is a flowchart illustrating an operation of pitch adjustment according to the present invention.

FIG. 4 is a diagram illustrating pitch adjustment of a conventional electronic musical instrument.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 keyboard 2 key press detection section 3 operation panel section 3A tone color button 3B pitch adjustment mode changeover switch (mode changeover instruction means) 3C system switch 4 panel scan circuit 5 tone signal generation section 6 amplifier 7 speakers 8a, 8b signal line 11 sounding channel Allocation unit 12 Mode switching unit (mode switching unit) 13 Control unit (control unit) 14 Tone color data reading unit (tone color data reading unit) 15 Tone color data storage unit (tone color data storage unit) 16 Tone color storage unit 100 CPU 200 ROM 300 RAM

Claims (4)

(57) [Claims] 1. An electronic musical instrument having a pitch adjusting function, comprising: a mode switching instructing means for instructing switching between a performance mode and a pitch adjusting mode; and, when the pitch adjusting mode is instructed by the mode switching instructing means, it is read out. Mode switching means for switching a tone color to a tone color of a continuous tone; and tone color data reading means for reading tone color data of a continuous tone or tone color data during a performance in accordance with a pitch adjustment mode or a performance mode instructed by the mode switching instruction means. An electronic musical instrument comprising: a tone color data storage unit that stores tone color data read by the tone color data reading unit. 2. The tone color data reading means is set to a tone color before being switched to the pitch adjustment mode by the mode switching means when the mode switching instructing means instructs to switch from the pitch adjustment mode to the performance mode. Data is read out.
Electronic musical instrument described. 3. The tone color data storage means separately stores tone color data read in a performance mode and tone color data of a continuous tone read in a pitch adjustment mode. The electronic musical instrument according to any one of 1. 4. The tone color of a continuous tone generated in the pitch adjustment mode is generated by selecting the tone color data of the continuous tone from the tone color data stored in the tone color data storage means. The electronic musical instrument according to any one of Items 1 to 3.