JPH07219545A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To provide the electronic musical instrument which has plural pieces of musical sound information for each pedal and varies the pattern of musical sound information read out according to the stepping-in frequency of the pedal as to an electronic musical instrument equipped with pedals such as a soft pedal and a damper pedal. CONSTITUTION:This electronic musical instrument has a counter 16 which counts the stepping-in frequency of the pedal 11, a buffer 17 which stores the storage location of musical sound signal selected according to the counted value of the counter 16, a storage means 15 which stores pieces of musical sound information of plural patterns that can be read out according to the storage location read out of the buffer 17, a read means 12 which selects and reads specific musical sound information out of the storage means 15 according to the counted value of the counter 16, and a musical sound generating means 4 which generates a musical sound on the basis of the musical sound information read out by the read means 12.

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 function of changing musical tone information read according to the number of times the pedal is depressed.

[0002]

2. Description of the Related Art Many conventional electronic pianos have a plurality of pedal devices, such as a soft pedal and a damper pedal, so that a playing feeling similar to that of an acoustic piano can be obtained.

Since it is uneconomical to use the pedals of these electronic musical instruments only for the original functions of the pedals, it is possible to assign other functions to the pedals, such as inserting fill-in into the built-in automatic performance pattern. There is something.

FIG. 8 is a functional block diagram of a conventional electronic musical instrument. As shown in the figure, when a conventional electronic musical instrument is operated, the function of the pedal assigned to the pedal function assigning section is read and sent to the fill-in data reading section through the pedal function executing section, whereby the fill-in data is read. It is supposed to be.

However, since only one fill-in can be assigned to one pedal, the function assigned to the pedal by the pedal function assigning section is always read out. Therefore, even if a plurality of fill-in patterns are prepared in advance, the selected pattern is selected. Has a drawback that the performance is flat and limited.

Further, even if the player has a function of operating a switch on the operation panel to switch between fill-in and the like during a performance, his hands must be released from the keyboard in order to use the function. Was difficult to switch.

Therefore, there has been a demand for the appearance of an electronic musical instrument in which musical tone information to be read can be switched using a pedal without using a hand, and moreover, a plurality of musical tone information patterns can be assigned to one pedal. .

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in an electronic musical instrument having a pedal such as a soft pedal or a damper pedal, one pedal is provided with a plurality of musical tone information, and the pedal is depressed. An object of the present invention is to provide an electronic musical instrument capable of changing the pattern of musical tone information read according to the number of times.

[0009]

A first invention is a pedal 1
A counter 16 that counts the number of times of depression of 1; a buffer 17 that stores a storage position of musical tone information that is selected according to the count value of the counter 16;
7, a storage means 15 for storing a plurality of patterns of musical tone information that can be read according to the storage position read from 7; and a predetermined musical tone information pattern is selected from the storage means 15 according to the count value of the counter 16. The reading means 12 is read out and the musical tone generating means 4 for generating a musical tone based on the musical tone information read by the reading means 12 is provided.

In a second aspect of the invention, the tone information read by the reading means 12 in the first aspect of the invention is configured to be fill-in.

In a third aspect based on the first and second aspects, the musical tone information pattern read from the storage means 15 according to the count value is repeatedly read at a constant cycle.

In a fourth aspect based on the first and second aspects, the tone information pattern read by the reading means 12 from the storage means 15 is randomly selected each time the pedal 11 is depressed. Composed.

[0013]

In the conventional electronic musical instrument, only one pattern of musical tone information was assigned to one pedal, but the present invention enables the insertion of musical tone information of different patterns depending on the number of times the pedal 11 is pressed. is there.

Therefore, in the present invention, the counter 16 that counts the number of times the pedal 11 is depressed and the counter 16
The buffer 17 for storing the storage position of the musical tone information selected according to the count value is provided, and the musical tone information can be arbitrarily assigned to the buffer 17.

As a result, the musical tone information can be selected according to the player's intention, and different musical tone information patterns can be selected according to the number of times the pedal 11 is depressed, so that a musical tone rich performance can be performed. Become.

In a second aspect of the invention, the tone information read by the reading means 12 in the first aspect of the invention is configured to be fill-in. This makes it possible to express musical tones with accents.

In a third aspect of the invention, in the first or second aspect of the invention, when the tone information patterns assigned to the buffer 17 are, for example, three, and are assigned in the order of fill 2 → fill 1 → fill 3, the pronunciation Tone information is pedal 1
It is repeated in the order of fill 2 → fill 1 → fill 3 → fill 2 → fill 1 → fill 3 in accordance with the number of times the user presses 1 to change the musical sound.

As a result, since it is possible to assign a plurality of musical tone information to one pedal, it is possible to express rich musical tones that cannot be seen in conventional musical instruments.

Further, in the fourth invention, in the first or second invention, a random number generator or a random number table and a random number reading means are provided instead of the counter 16. As a result, the musical tone information to be generated is randomly selected each time the pedal is pressed.

Therefore, since the electronic musical instrument can allocate a large number of musical tone information patterns without being limited by the number of pedals, it is possible to express a wider variety of musical tones.

[0021]

FIG. 2 is a block diagram showing the overall construction of an electronic musical instrument according to the present invention. An embodiment of the present invention will be described below by taking a case where fill-in is assigned as a pattern of musical tone information.

In the figure, the CPU 100 is a ROM 20.
Controls each part of the electronic musical instrument according to the control program stored in the program memory unit
A control parameter (count value) corresponding to the number of depressions of the pedal 11 is read from the fill-in data storage unit 15 provided on the device 200 and sent to the tone channel assigning unit 3.

The ROM 200 stores tone color data and various other fixed data in addition to the program for operating the CPU 100 described above. Music information such as fill-in that is directly related to the present invention is stored in the ROM 200.

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 stored in the ROM 200 is transferred and temporarily stored. It has a data area to be stored.

Further, a plurality of registers in which data necessary for sound emission corresponding to the state of each key and switch of the operation panel 7 are set, and each tone generation circuit of the tone signal generator 4 is assigned to an unused channel. The assigner memory that stores data, the storage area that stores performance information, etc.
It is provided in 300.

The data relating to the setting states of the switches of the operation panel 7 stored in the RAM 300 is referred to by the CPU 100 as needed during sound production. In addition, the key depression map and the note-on counter that store the on / off state of the keyboard 1 described above are also stored in the RAM 300.
It is provided in.

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 operation of the performer is detected by the key depression detection unit 2, and the signal detected under the control of the CPU 100 is supplied to the tone generation channel allocation unit 3.

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 detection unit 2 detects the key-depression / key-release actions of the player, that is, the on / off state of the key, and transmits the detected on / off state to the sound generation channel assigning unit 3 together with the key number. is there. The CPU 100 stores the on / off information of this key in the RAM 300.

On the operation panel section 7, 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. The automatic performance switch 7A, the fill-in switch 7B, and the system switch 7C related to the present invention are provided on the operation panel 7.

The set / reset state of each switch of the operation panel 7 is detected by the panel scan circuit included therein, and the data on the set state of the switch detected by the panel scan circuit of the operation panel 7 is It is stored in the RAM 300 under the control of the CPU 100.

The pedal device 11 is provided with, for example, a damper pedal, a soft pedal, a sostenuto pedal, etc. according to the type of electronic musical instrument, and the number of times the pedal 11 is stepped on is counted by each counter 16.

The counter 16 counts the number of times the pedal 11 is pressed, and the fill-in to be read is selected according to the count value of the counter 16. Details of the fill-in selection operation will be described with reference to FIG.

The tone signal generator 4 reads the tone waveform data and envelope data corresponding to the signal output from the CPU 100 from the waveform memory, adds the envelope to the read tone waveform data, and outputs the tone signal. .

The tone signal output from the tone signal generator 4 is supplied to the amplifier 13 through a D / A converter (not shown). For this reason, a waveform memory (not shown) for storing waveform data and envelope data is connected to the tone signal generator 4.

The amplifier 13 amplifies the analog tone signal supplied from the tone signal generator 4 through the D / A converter with a predetermined gain. The output of the amplifier 13 is supplied to the speaker 14.

The speaker 14 converts an analog musical tone signal as an electric signal sent from the amplifier 13 into an acoustic signal. That is, the musical tone is emitted according to the generated musical tone signal.

FIG. 3 is a functional block diagram of the main parts of the electronic musical instrument according to the present invention. First, referring to FIG. 3, the functions of the parts not described in FIG. 2 will be described.

The tone generation channel assigning section 3 is provided with the key depression detecting section 2
The internal sound source sent from the data reading section 6 is assigned to a predetermined sounding channel. The tone information from the tone generation channel assigning section 3 is supplied to the tone signal generating section 4.

The automatic performance data storage unit 5 is a ROM 200 for storing data for automatic performance. When the automatic performance switch 7A on the operation panel 7 is pressed, predetermined data is read from the automatic performance data storage unit 5. Be done.

The data reading section 6 reads out predetermined data from the automatic performance data storage section 5 when the automatic performance switch 7A on the operation panel section 7 is depressed and supplies it to the tone generation channel assigning section 3.

That is, when the start switch is depressed while the automatic performance switch 7A is depressed, the accompaniment data and melody data are read out and the automatic performance is performed.

The pedal function data storage unit 8 is a ROM 200.
It is provided above and stores the functions that can be assigned to the pedals.

The pedal function assigning section 9 assigns a desired function to the pedal 11, and the pedal function executing section 10
Performs the function assigned to the pedal 11. All of these functions are realized by programs.

The fill-in data reading unit 12 reads the fill-in data according to the count value, and is read by the program. The instruction for the fill-in data reading unit 12 to read the fill-in data is issued by pressing the fill-in switch 7B or operating the pedal 11.

The fill-in data storage unit 15 is the ROM 20.
0, and stores a plurality of fill-in data patterns that can be selected according to the depression of the pedal 11.

When the fill-in data is read out, the fill-in data read-out unit 12 operates in the RAM according to the count value.
The fill-in number set in the counter buffer 17 provided on the 300 is read, and the ROM is read based on this number.
Read from 200.

Although the present embodiment has been described by taking the invention of claim 3 using the counter 16 as an example, a random number generator is used in place of the counter 16 or a random number table is prepared and the pedal 11 is depressed each time. When the random number is generated or the random number is read out, many patterns can be assigned to the pedal 11.

Next, the operation of assigning fill-in to the buffer 17 and the operation of reading will be described with reference to FIG.

It is assumed that three pieces of fill-in patterns, fill-in 1, fill-in 2, and fill-in 3, are prepared for the tone information as fill-in patterns, and that the calling order is fill-in 2, fill-in 1, and fill-in 3.

In this case, the fill-in patterns are numbered as shown in FIG. 4A, and the fill-in numbers are input to the buffer 17 in the order of sounding as shown in FIG. 4B on the system mode display screen. To do.

On the other hand, the counter 16 has a count value of, for example, 1 → 2 → 3 → 1 → 2 → 3 → 1 each time the pedal 11 is depressed.
→ Prepare a counter 16 that changes as
The fill-in number stored at the position corresponding to the count value is read, and the fill-in corresponding to the read-in number is read from the fill-in data storage unit 15 and sounded.

As a result, in the case of the present embodiment, the sound is generated in the order of fill 2 → fill 1 → fill 3 → fill 2 ... The counter 16 of the present embodiment is advantageous in that it is simple and flexible because it is configured to count by a program.

In this embodiment, the case where three fill-in patterns are prepared has been described as an example, but the present invention is not limited to this, and any number of patterns may be prepared.

FIG. 5 is a flowchart of the main routine showing the operation of the electronic musical instrument of this embodiment. The operation of the electronic musical instrument of this embodiment will be described below with reference to FIG.

First, when the power switch provided on the operation panel 7 is turned on or the reset switch is depressed, initialization processing is performed (step S1).
1).

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 the tone color is also set. This is processing such as initializing the pointer and determining the initial tone color.

Then, a panel scan process is performed (step S12). In this panel scan processing, the presence / absence of an event is determined based on the data detected by the scan circuit of the operation panel 7, and on / off information of each switch is created based on the determination result and stored in the RAM 300.

Then, the fill-in data is assigned to the pedal function (step S13). The operation of assigning fill-in data to the pedal function will be described in detail in the explanation of FIG.

When the allocation of the fill-in data to the pedal function is completed, the pedal scan is subsequently performed (step S14).

The pedal scan process is a process of reading the data on / off of the pedal 11 detected by the pedal function executing section 10 and setting it in the pedal buffer.
By comparing the contents of the old pedal buffer and the new pedal buffer, the pedal event buffer in which the portion corresponding to the operated pedal 11 is turned on or off is created.

Then, the fetched data is searched to check whether or not there is a pedal event, that is, whether or not there is a pressing or releasing operation (step 15). If there is no pedal event here, there is no need to perform any processing, so the process skips to step S17.

On the other hand, when it is determined that there is a pedal event, the pedal function is executed (step S16). This is a process for executing the function assigned to the pedal 11.

That is, if the pedal 11 is an on event, the count value is checked, the fill-in number to be read is read from the buffer 17 according to the count value, and the fill-in corresponding to the read-in number is read from the fill-in data storage unit 15 R
It is stored in a predetermined area of the AM 300 and prepared for pronunciation.

Next, a key scan process is performed (step S17). In this key scan processing, data regarding the key depression state of the keyboard 1 detected by the key depression detection unit 2 is read,
This is a process of setting in the new key buffer, and by comparing the contents of the old key buffer and the new key buffer, the key event buffer in which the part corresponding to the operated key is turned on or off is created.

Then, the fetched event buffer is searched to check whether or not there is a key event, that is, whether or not there is a key depression or key release operation (step 18). If there is no key event here, there is no need to process anything, so the process skips to step S22.

On the other hand, if it is determined that there is a key event, it is checked whether or not the event is an on event (step S19). If it is an on event here, a predetermined sounding process is performed (step S20), and the process proceeds to other processes in step S22.

That is, the musical tone signal generator 4 is driven, and a digital musical tone signal is output via a predetermined channel and supplied to the tone generator system. This digital tone signal is D /
The analog tone signal is converted by the A converter, amplified by the amplifier 13, and emitted from the speaker 14.

On the other hand, if it is determined in step S19 that the event is not the on event, that is, the key release event, the mute processing is performed (step S21). This mute processing is processing in which the CPU 100 sends out predetermined control information to the musical sound signal generating section 4 to erase the musical sound currently being sounded.

For example, if the pedal information is off, a predetermined release data is sent, the envelope is quickly converged to "0", and the sound is cut off. Then, it progresses to Step S22 and performs other processing (Step S22).

In the "other process", a switch event process, a keyboard event process, or other process according to the switch designation detected, for example, a switch event for tone color change process, volume change process, rhythm selection process, or the like is processed. It is a thing.

Next, step S of the main routine of FIG.
The operation of assigning the fill-in of 13 to the pedal function will be described with reference to FIG.

In assigning the fill-in to the pedal function,
Based on the result of the panel scan performed in the processing of the above-mentioned main routine, it is first checked whether or not there is a panel event (step S32).

If there is no change in the setting of the panel switch, there is no change in the setting such as the allocation of the fill-in to the pedal function, so that the process directly returns to the main routine.

On the other hand, if the panel switch setting is changed in step S32, then the system switch 7
It is checked whether or not C is turned on (step S3).
3). That is, it is checked whether the system switch 7C is set in the system setting mode.

If the system switch 7C is not set to the system setting mode, it is not necessary to set the system, and the process branches to perform other panel processing (step S35). That is, processing other than the system such as tone color change and effect ON / OFF is performed, and the process returns to the main routine.

On the other hand, when the system switch 7C is set to the system setting mode, the system mode is selected (step S34).

The selection of the system mode is a process of changing the page based on the display screen displayed on the LCD and selecting and setting an item to be set, such as pedal function allocation and MIDI setting. Is illustrated as an example of the operation of FIG. 7.

Next, it is checked whether or not the setting in the above step S34 is set to the setting mode for the pedal 11 of the fill-in (step S36).

If the mode for setting the function of the pedal 11 is not set, the system is set for the other modes set in step S34 (step S38). This is MID
This is a system setting process related to the mode selected in step S34, which is a system function setting other than the pedal function such as the setting of the I channel. Then return to the main routine.

If the pedal 11 is in the setting mode in step S36, the function of the pedal is selected (step S37).
That is, a desired function is selected from a plurality of pedal functions such as a soft pedal, a damper pedal, and a rhythm start / stop.

Then, it is checked whether or not the selection of the pedal function is the assignment of the fill-in to the pedal function (step S39). When the fill-in is assigned to the pedal function, the order of sounding the fill-in is determined (step S40).
An example of the fill-in allocation procedure will be described with reference to FIG.

On the other hand, if the fill-in is not assigned to the pedal function, the other functions selected in step S37 are assigned to the pedal function (step S41). That is, the pedal 11 has software, dampers, rhythm start /
Functions such as stop are assigned to the pedal 11.

In this way, the fill-in pattern can be assigned to the pedal 11.

Next, the procedure for assigning functions to pedals will be described with reference to FIG.

As shown in FIG. 7A, in addition to the display screen, the operation panel 7 is provided with an automatic performance switch 7A, a fill-in switch 7B, a system switch 7C, a cursor switch, a value switch and the like.

The system switch 7C is a push-down switch, and when the system switch 7C is pushed down, the system can be set on the LCD screen.

The cursor switch is for selecting the item whose value is to be changed, and the cursor is moved on the screen by operating the switch.

The value switch is a switch for changing the value of the item with the cursor. For example, as shown in FIG. 7B, if the value switch is operated while the cursor is on the system mode page, the page of the screen changes and another system mode is selected.

The assignment of the fill-in sound generation order is made according to the operation of the value switch in the blank space after the display of FILL1 when the value switch is operated while the cursor is at FILL1 as shown in FIG. 7 (d). The number is displayed and the fill-in order is assigned.

As described above, according to the present invention, a plurality of fill-ins can be assigned to one pedal. In addition,
Of course, it is possible to assign fill-in silence by assigning a blank.

Further, in the present embodiment, the case where fill-in is assigned has been described as an example, but the present invention is not limited to this, and other musical tone information patterns may be assigned.

[0093]

As described above in detail, according to the electronic musical instrument of the present invention, it is possible to switch the musical tone information by depressing the pedal, so that it is not necessary to manually switch between musical performances, and the operability is remarkably improved. improves.

Further, a plurality of musical tone information patterns can be assigned to one pedal and can be automatically switched by depressing the pedal between performances, so that a musical performance can be performed with a rich sense of tone.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of an electronic musical instrument of the present invention.

FIG. 2 is a block diagram showing a general configuration of an electronic musical instrument according to the present invention.

FIG. 3 is a block diagram showing a functional configuration of an electronic musical instrument according to the present invention.

FIG. 4 is a diagram for explaining the configuration and operation of the buffer of the electronic musical instrument according to the present invention.

FIG. 5 is a main flow chart illustrating an operation according to the present invention.

FIG. 6 is a flowchart illustrating an operation of assigning a fill-in to a pedal function according to the present invention.

FIG. 7 is an explanatory diagram of screen input for explaining an input operation according to the present invention.

FIG. 8 is a diagram illustrating a functional configuration of a conventional electronic musical instrument.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 keyboard 2 key press detecting section 3 sounding channel assigning section 4 tone signal generating section (tone generating means) 5 automatic performance data storage section (storage means) 6 data reading section (reading means) 7 operation panel 7A automatic performance switch 7B fill-in switch 7C System switch 8 Pedal function data storage unit (storage unit) 9 Pedal function allocation unit 10 Pedal function execution unit 11 Pedal 12 Fill-in data reading unit (reading unit) 13 Amplifier 14 Speaker 15 Fill-in data storage unit (storage unit) 16 Counter 17 Buffer (storage means) 100 CPU 200 ROM 300 RAM

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Takano 200 Terashimacho, Hamamatsu City, Shizuoka Prefecture Kawai Musical Instrument Co., Ltd. (72) Inventor Yoshifumi Kira 200 Terashima-cho, Hamamatsu City, Shizuoka Prefecture Kawai Musical Instrument Mfg. Co., Ltd.

Claims (4)

[Claims] 1. An electronic musical instrument having a pedal, a counter for counting the number of times the pedal is stepped on, a buffer for storing a storage position of musical tone information selected according to a count value of the counter, and a read from the buffer. Storage means for storing a plurality of musical tone information that can be read according to the issued storage position; reading means for selecting and reading predetermined musical tone information from the storage means according to the count value of the counter; and reading means. An electronic musical instrument having a musical tone generating means for generating a musical tone based on the musical tone information read by the electronic musical instrument. 2. The electronic musical instrument according to claim 1, wherein the musical tone information read by the reading means from the storage means is fill-in. 3. The electronic musical instrument according to claim 1, wherein the musical tone information read by the reading means from the storage means is periodically repeated according to a count value. 4. The electronic musical instrument according to claim 1, wherein the musical tone information read by the reading means from the storage means is randomly selected each time the pedal is depressed.