JPH08152882A - Electronic musical instrument - Google Patents

Abstract

PURPOSE: To obtain an easy to use electronic musical instrument to which a desired effect can be added by a simple operation by only specifying a tone color during a playing by beforehand setting effects corresponding to various tone colors prior to the start of the playing. CONSTITUTION: Prior to the start of a playing, an effect for every tone color is beforehand set by an effect assigning means 21. The effect set to every tone color is stored in an effect storage means 28. When a prescribed timing of the sound generation has come, the effect assigned to the tone color is read from a storage means 28 based on the tone color stored in a tone color storage section 27 and the effect is added to the tone color. When an effect switchover switch 3B is pushed, a conventional playing mode is switched an effect automatically adding mode. Thus, the effect, which is beforehand set to a specified tone color, is automatically added by such a simple operation that a tone color button 3A is pushed.

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 built-in effect function, which can be automatically added with a preset effect according to a designated timbre by operating a timbre button during a performance. Regarding

[0002]

2. Description of the Related Art Many conventional electronic musical instruments such as electronic pianos have built-in effect functions such as delay and reverb. FIG. 6 is a diagram for explaining the relationship between the tone color and the effect function of these conventional electronic musical instruments.

The relationship between the tone color and effect function of a conventional electronic musical instrument will be described below with reference to the drawings. Since the function of each component constituting the effect function is almost the same as that of the embodiment of the present invention, the detailed description will be omitted and the overall function will be described.

As shown in the figure, in the conventional electronic musical instrument, a system for operating a tone color and a system for adding an effect are independently configured, and both signals are integrated in the tone generation channel allocating section 11 so that a desired musical tone is produced. It is supposed to be generated.

In the tone color control, when the tone color button 3A for designating one of the tone colors on the operation panel 3 is operated, the tone color designated by the button 3A is stored in the tone color storage section 27.

When the predetermined tone generation timing is reached, the tone color data stored in the tone color storage unit 27 is read by the tone color data reading unit 22 and sent to the tone generation channel assigning unit 11.

On the other hand, the switching for adding an effect is performed by turning on / off the effect changeover switch 3B.
This is performed by turning on / off the circuit of 3 and 3.

That is, when the effect changeover switch 3B is turned on, an effect switch such as reverb, delay, or chorus (not shown) is operated, and a waveform corresponding to the operated effect switch is displayed regardless of the tone color being produced. It is read by the reading unit 23 and a desired effect is added.

On the other hand, when the effect changeover switch 3B is off, the circuit of the effect data storage unit 26 and the circuit of the effect data reading unit 23 are separated, and no effect is added.

As described above, in the conventional electronic musical instrument,
The effect function is composed of a system of functions independent of the timbre. When it is desired to change the effect for each timbre, after changing the timbre, the effect selection switch 3B and an effect switch (not shown) are added to the effect to be added to the timbre. It was necessary to specify by operating.

Moreover, since these switches are provided on the operation panel 3, the operation is complicated. For this reason,
There is a demand for an electronic musical instrument that can easily add a desired effect according to a tone color.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. By setting an effect for each tone color before the performance starts, a predetermined effect can be obtained by designating the tone color during the performance. It is an object to provide an electronic musical instrument that can be automatically added.

[0013]

According to the present invention, in an electronic musical instrument having an effect function, an effect assigning means 21 for assigning an effect to each tone color, and an effect assigned by the effect assigning means 21 are stored for each tone color. Effect storing means 28 for each tone color, and the effect storing means 28 for each tone color, based on the tone color designated at the time of sounding, the effect assigned to each tone color.
And an effect data reading means 23 for reading from.

The effect allocation performed by the effect allocation means 21 according to the present invention is configured to be performed by an editor.

[0015]

According to the present invention, the effect assigning means 21 for setting the effect desired to be added to each timbre before the performance starts is provided, and the effect allocating means 21 presets the effect for each timbre before starting the performance. By doing so, the effect set for each timbre is automatically added by a simple operation of designating the timbre during the performance.

Therefore, the effect storage means 28 for each tone color
The effect storage means 28 for each tone color stores the effect set for each tone color.

Then, at a predetermined timing of sound generation, based on the tone color stored in the tone color storage section 27, the effect assigned to the tone color is read from the effect storage means 28 and added to the tone color. .

As a result, the effect changeover switch 3B
When is pressed, the normal performance mode is switched to the effect automatic addition mode, and the preset effect is automatically added to the designated tone color by a simple operation of operating the tone color button 3A.

Further, in the normal playing mode, it is possible to independently control the timbre and the effect as in the conventional case, and various playing methods can be performed by switching the effect changeover switch 3B between the performances. Become.

[0020]

1 is a schematic block diagram showing the overall construction of an electronic musical instrument according to the present invention. The function of each block will be described below with reference to the drawings. In the following drawings, the same parts will be described with the same numbers.

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 section of the electronic musical instrument according to a control program stored in the program memory section of the ROM 200 and assigns an effect to each timbre.

Therefore, the CPU 100 is provided with an effect assigning section 21, a tone color data reading section 22, and an effect data reading section 23, and the read signal is sent to the tone signal generating section 5.

The effect assignment performed by the effect assigning unit 21 will be described in detail with reference to FIG. 4, and the functions of the tone color data reading unit 22 and the effect data reading unit 23 will be described in detail with reference to FIG.

The ROM 200 stores tone color data and various other fixed data in addition to the program for operating the CPU 100 described above. The functions of the tone color data storage unit 25 and the effect data storage unit 26 provided in the ROM 200 will be described in detail with reference to FIG.

In the RAM 300, a work area for the CPU 100, various registers for controlling the electronic musical instrument, counters, flags, buffers, etc. are defined.
It has a data area in which necessary data among the data stored in 200 is transferred and temporarily stored.

Further, a plurality of registers in which data necessary for sound emission are set corresponding to the setting states of the keys and switches of the operation panel 3 and each tone generation circuit of the tone signal generator 5 are assigned to unused channels. The assigner memory for storing the data for storing, the storage area for storing the tone information, etc.
It is provided in AM300.

The functions of the tone color storage unit 27 and the tone color effect storage unit 28 provided in the RAM 300 will be described in detail with reference to FIG.

The keyboard 1 is used for designating a musical sound 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 detected signal is supplied to the tone generation channel assignment unit 11 (see FIG. 2) under the control of the CPU 100.

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 CPU 100 stores the on / off information of this key on 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. The operation panel 3 is also provided with a tone color button 3A, an effect changeover switch 3B, and a system switch 3C which are directly related to the present invention.

The set / reset state of each switch of the operation panel 3 is detected by the panel scan circuit 4 included therein, and the set state of the switch detected by the panel scan circuit 4 of the operation panel 3 is related. Data is RAM300 under the control of CPU100
It is stored in a predetermined area above.

In addition to the above-mentioned various switches, the operation panel 13 is provided with a display device for displaying various information.

The tone signal generator 5 reads 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 by 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 analog musical tone signal supplied from a D / A converter (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 functional block diagram of main parts relating to the effect imparting function of the electronic musical instrument of the present invention. First, FIG.
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 the internal signals sent from the key depression detecting section 2, the tone color data reading section 22 and the effect data reading section 23 to a predetermined tone generating channel. The tone information from the tone generation channel assigning section 11 is supplied to the tone signal generating section 5.

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

The effect selector switch 3B is a switch for switching between a normal performance mode and the effect automatic addition mode of the present invention. When the switch is depressed, the signal line of the switching section 12 is switched on, and before the performance starts. This is a mode in which the effect set for each timbre is automatically added.

On the other hand, when the effect switch 3B is off, it is a normal performance mode, the signal line of the switching section 12 is connected to off, and the tone color and the effect are designated separately during the performance. become.

Although not shown on the operation panel 3,
In order to specify effects between performances during normal performance,
There are multiple effect switches that specify reverb, delay, etc.

The system switch 3C provided on the operation panel 3 is a switch for making various system settings. After the system switch 3C is set to the edit function, the tone color is set by the editor while referring to the display on the display. The effect settings are made for each.

The tone color data storage unit 25 provided on the ROM 200 stores the tone data of each tone color, and the tone color storage unit 27 stores the tone color designated by the operation of the tone color button 3A. .

The effect data storage section 26 provided on the ROM 200 stores effect data such as reverb and delay, and the effect storage section 28 for each tone color is set in advance for each tone color before the performance starts. In order to call the effect, the corresponding effect is stored by, for example, a code or an address.

The tone color data reading section 22 and the effect data reading section 23 provided on the CPU 100 read the designated tone color data and effect data at a predetermined timing.

The switching unit 12 switches between a conventional system for independently applying a tone color and an effect and a system for automatically applying an effect according to the designation of the tone color of the present invention. By operating the effect selector switch 3B. Controlled.

In such a configuration, the effect setting for each tone color is performed in the manner described in detail with reference to FIG. 4 before the performance starts. The set contents are stored in the effect storage unit 28 for each tone color in the manner described in detail in FIG.

When the tone color button 3A is operated with the effect changeover switch 3B turned on when the performance is started, the tone color designated by the tone color button 3A is temporarily stored in the tone color storage section 27.

Next, at a predetermined sounding timing,
The timbre data reading unit 22 reads the timbre stored in the timbre storage unit 27, reads timbre data corresponding to the timbre from the timbre data storage unit 25, and sends it to the tone generation channel assigning unit 11.

On the other hand, the effect data reading section 23 reads the tone color of the tone to be generated next from the tone color storage section 27,
Based on this, what effect is to be added to the tone color is read from the tone color effect storage unit 28.

Then, based on the read address or code of the effect, the corresponding effect data is read from the effect data storage section 26 and sent to the sound generation channel assigning section 11.

In this way, according to the present invention, when a tone color to be pronounced is designated, the effect to be added to the tone color is automatically read out when the tone color is pronounced, so the tone color is designated. A predetermined effect can be added by a simple operation.

When the effect changeover switch 3B is off, a normal performance, that is, a conventional effect-applying method for independently designating a tone color and an effect, is performed.

Next, the configuration and function of the tone color effect storage section 28 will be described with reference to FIG.

The effect storage unit 28 for each tone color is a RAM 30.
0, the effect setting values set for each timbre in a predetermined order as shown in the figure are stored as codes or addresses.

On the other hand, a predetermined area on the ROM stores a correspondence table of each effect and a code indicating the effect, as shown on the right side of FIG.

Therefore, when the performer operates the system switch 3C (see FIG. 4) to start the edit function and sets an effect in accordance with a tone color, the set effect is stored in the effect memory section 28 for each tone color. It is stored as a code indicating the set effect.

When the player operates the timbre button 3A during the performance, the code indicating the operated timbre is temporarily stored in the timbre storage unit 27, and the timbre data read-out unit 22 causes the timbre data reading unit 22 to store at the timing of sound generation. The tone colors stored in 27 are read out, and tone color data based on the read tone colors are read out from the tone color data storage section 25.

On the other hand, the effect data reading section 23 reads the effect corresponding to the timbre stored in the timbre storage section 27 from the timbre-specific effect storage section 28 at the timing of sound generation, and based on the read effect code. The effect data into the effect data storage unit 26.
Read from.

Then, the read effect data is sent to the tone generation channel assigning section 11, and the tone generation channel assignment section 11 assigns tone generation channels together with the tone color data sent from the tone color data reading section 22 to generate a tone signal. Part 5 adds a predetermined effect to the timbre.

Next, a procedure for setting effects by the editor will be described with reference to FIG.

As illustrated in FIG. 4A, the operation panel 3
In addition to the display screen, a tone color button 3A, an effect changeover switch 3B, a cursor switch, a value switch, a system switch 3C and the like are provided on the top.

The system switch 3C is, for example, a rotary type switch, and when the system switch is set to edit, the effect function can be set on the LCD screen.

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

The value switch is a switch for setting / changing the value of the item with the cursor. For example, FIG. 4 (b)
When the value switch is operated in the state where the cursor is on the system mode page, as shown in, for example, the page of the screen is switched and the next system mode can be selected.

FIG. 4B shows an example of the structure of the display screen. When assigning an effect to each timbre, first move the cursor to the page and operate the value switch to display the effect function assignment page, for example, page 6.

Next, move the cursor to the title part,
For example, Tone-Effect is selected and displayed by the value switch.

In FIG. 4 (c), the Tone-Effect item on page 6 is selected as the effect function assignment, and the timbre of Piano 1 is currently selected as the assignable function in the Tone-Effect item. There is reverb 1 as an effect on the Piano 1.
Is assigned.

When selecting a tone color, if the cursor is moved to the tone color and the value switch is operated as shown in FIG. 4 (c), each tone color is displayed one after another and the effect of each tone color can be set. Become.

FIG. 4D shows that, in FIG. 4C, the cursor is moved to the effect item, the value switch is operated, and the reverb 2 is assigned to Piano 1 as an effect.

The setting of the effect for each tone color is performed by moving the cursor to the effect and operating the value switch in this way.

As described above, according to the present invention, it is possible to assign an effect to each tone color, and by simply operating a tone color button during a performance, an effect previously assigned to a designated tone color is automatically generated. Will be added.

FIG. 5 is a flow chart for explaining the effect applying operation according to the present invention. The effect imparting operation of the electronic musical instrument according to the present invention 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 in the CPU 100 and the registers defined in 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 determining the 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 scan circuit 4 of the operation panel 3, ON / OFF information of each switch is created based on the determination result, and stored in the RAM 300. Is.

Then, it is checked whether or not the effect changeover switch 3B is turned on (step S13).
This is a process for determining whether or not to automatically apply an effect for each timbre. If it is not turned on, panel processing such as other timbre setting and rhythm setting is performed (step S15), and the process proceeds to step S16. .

On the other hand, when the effect changeover switch 3B is turned on in step S13, the effect corresponding to the tone color stored in the tone color storage section of the RAM 300 is selected.
The effect data is read from the tone color effect storage unit 28, and based on this value, the effect data reading unit 23 reads the effect data from the effect data storage unit 26 and sends it to the sound generation channel assigning unit 11 (step S14).

Next, a key scan process is performed (step S16). 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 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, if there is a key event in step S17, it is subsequently checked whether or not the key event is an on event (step S18).

When it is determined that the event is not the on event, that is, the key release event, the mute processing is performed (step S20). This mute processing is processing in which the CPU 100 sends predetermined control information to the tone signal generator 5 so as 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.

In "other processing" (step S21), processing according to switch designation detected in switch event processing, key event processing, or the like, for example, tone color changing processing,
Performs switch event processing such as volume change processing and rhythm selection processing.

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

[0089]

As described in detail above, according to the present invention, by setting the effect corresponding to each timbre in advance before the performance starts, the desired effect can be performed by a simple operation of designating the timbre during the performance. It is possible to provide an electronic musical instrument that is easy to handle.

[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 showing a functional configuration of an electronic musical instrument according to the present invention.

FIG. 3 is a diagram for explaining the configuration and operation of a tone color effect storage section.

FIG. 4 is a diagram illustrating an effect setting procedure by an editor.

FIG. 5 is a flowchart for explaining the operation of the electronic musical instrument according to the present invention.

FIG. 6 is a diagram for explaining a functional configuration of a conventional electronic musical instrument.

[Explanation of symbols]

1 keyboard 2 key press detecting section 3 operation panel 3A tone color button 3B effect switch 3C system switch 4 panel scan circuit 5 tone signal generating section 6 amplifier 7 speaker 11 sounding channel assigning section 12 switching section 21 effect assigning section (effect assigning means) 22 Tone color data reading unit 23 Effect data reading unit (effect data reading unit) 25 Tone color data storage unit 26 Effect data storage unit 27 Tone color storage unit 28 Tone color effect storage unit (tone color effect storage unit) 100 CPU 200 ROM 300 RAM

Claims (2)

[Claims] 1. In an electronic musical instrument having an effect function, effect assigning means for assigning an effect to each tone color, effect storing means for each tone color for storing the effect assigned by the effect assigning means for each tone color, and at the time of sounding. An electronic musical instrument, comprising: an effect data reading means for reading out an effect assigned to each tone color from the effect storage means for each tone color based on a designated tone color. 2. The electronic musical instrument according to claim 1, wherein an effect is assigned by the effect assigning means by an editor.