JPH05289662A - Automatic effect selecting device - Google Patents

Abstract

(57) [Summary] [Purpose] Easily select and add the optimum effect to the selected accompaniment pattern. [Structure] When the effect automatic selection flag is on (step S6), the effect automatic selection table 11
Rewrite from 1 to the optimum effect number (effect NO.) For the accompaniment pattern changed this time (step S7),
Rewritten effect No. The data is output to the DSP 113 for effect processing. This allows the DSP 113
Then the effect NO. Processing for adding an effect corresponding to the data is performed. Therefore, the most suitable effect is automatically selected from the plurality of effects for one selected accompaniment pattern, and it is not necessary to select the effect by trial and error, and it does not take time and effort.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic effect for automatically selecting and adding a sound effect (hereinafter referred to as an effect) to a sound signal input from an electronic musical instrument or the like according to an accompaniment pattern. Regarding selection device.

[0002]

2. Description of the Related Art Conventionally, many electronic musical instruments having an effect function have been developed which are capable of adding effects such as reverb, chorus or delay to a musical tone signal generated by an electronic musical instrument or the like.

In such an electronic musical instrument, a desired effect is added to a musical tone signal to be generated by a player's arbitrary selection. This is because changing the effect becomes necessary when changing the atmosphere of the musical sound generated by using the above-described multi-effector in an electronic musical instrument (usually changing the playing method).

[0004]

However, while the addition of such an effect produces a very good musical effect, it must be combined well with an accompaniment pattern that is similarly selected when a musical tone is generated. , Musically unsuitable causes an effect.

For example, when an accompaniment pattern such as rock is selected, a reverb for generating reverberant sounds in a large venue must be added, whereas
Adding a reverb like in a small room makes it unpleasant to the music.

However, conventionally, in order to prevent such a situation, an effect most suitable for an accompaniment pattern selected from a plurality of effects has to be selected by trial and error, which is very troublesome. There was a problem that it was difficult for beginners.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an effect automatic selection device capable of easily selecting and adding an optimum effect to a selected accompaniment pattern.

[0008]

To achieve the above object, an effect automatic selection device according to the invention of claim 1 stores an accompaniment pattern storage means for storing a plurality of types of accompaniment patterns and effect information for each accompaniment pattern. Effect information storage means, accompaniment pattern selection means for selecting an accompaniment pattern to be generated from a plurality of types of the accompaniment pattern storage means, and effect information corresponding to the accompaniment pattern selected by the accompaniment pattern selection means, Reading means for reading from the effect information storage means,
When one accompaniment pattern is selected by the accompaniment pattern selection means, an effect adding means for adding an effect corresponding to the effect information read from the reading means to a given musical sound is provided. Is characterized by.

According to the second aspect of the present invention, there is provided an effect automatic selection device in which accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, and effect information storage means for storing a plurality of effect information ranked for each accompaniment pattern. And effect information selecting means for selecting an arbitrary rank from among the plurality of effect information for each accompaniment pattern,
An accompaniment pattern selection unit that selects an accompaniment pattern to be generated from a plurality of types of the accompaniment pattern storage unit, and an order selected by the effect information selection unit corresponding to the accompaniment pattern selected by the accompaniment pattern selection unit. When one accompaniment pattern is selected by the reading means for reading the effect information of the effect information from the effect information storage means and the accompaniment pattern selecting means, the effect information read from the reading means is applied to the given musical sound. And an effect adding means for adding a corresponding effect.

According to another aspect of the present invention, there is provided an effect automatic selection device comprising: accompaniment pattern storage means for storing a plurality of types of accompaniment patterns; and effect parameter storage means for storing a plurality of types of effect parameter information for each accompaniment pattern. An effect designating means for designating an effect to be added, an accompaniment pattern selecting means for selecting an accompaniment pattern to be generated from a plurality of types of the accompaniment pattern storing means, and an accompaniment pattern selected by the accompaniment pattern selecting means. When one accompaniment pattern is selected by the reading means for reading the corresponding effect parameter information from the effect parameter storage means and the accompaniment pattern selecting means, the effect read by the reading means for the given musical sound. Among the parameters And effect adding means for adding an effect based on the effect parameters corresponding to the specified by specifiers means effects, in that it comprises the features.

[0011]

According to the present invention, the effect information is stored in the effect information storage means for each accompaniment pattern, and the accompaniment pattern to be generated is selected from a plurality of types. Also, the effect information corresponding to the selected accompaniment pattern is read from the effect information storage means. Now
When one accompaniment pattern is selected, the effect adding means adds an effect corresponding to the read effect information to the given musical sound.

Therefore, the most suitable effect is automatically selected from a plurality of effects for one selected accompaniment pattern, and even a beginner can easily add the optimum effect.

According to the second aspect of the invention, a plurality of effect information ranked for each accompaniment pattern is stored in the effect information storage means, and the effect information selecting means selects an arbitrary rank. Further, the effect information of the selected rank corresponding to the selected accompaniment pattern is read from the effect information storage means. Then, when one accompaniment pattern is selected,
The effect corresponding to the read effect information is added by the effect adding means.

Therefore, the effect of the selected rank is automatically selected and added to the selected one accompaniment pattern from the plurality of ranked effects. Therefore, even a beginner can easily add effects in any order.

According to the third aspect of the invention, parameter information of a plurality of types of effects is stored in the effect parameter storage means for each accompaniment pattern, and the effect to be added is designated by the effect designation means. Also, the effect parameter information corresponding to the selected accompaniment pattern is read from the effect parameter storage means. When one accompaniment pattern is selected, the effect adding means adds an effect based on the effect parameter corresponding to the effect specified by the effect specifying means among the read effect parameters to the given musical sound. To be done.

Therefore, the content of the effect parameter corresponding to the specified effect can be easily changed and added to one selected accompaniment pattern. Therefore, even a beginner can easily specify an effect parameter and add an effect.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of an embodiment in which the effect automatic selection device according to the invention of claim 1 is applied to an electronic musical instrument.

In FIG. 1, a switch group 101 is an accompaniment selector switch 102 for starting and switching accompaniment patterns, an effect selector switch 103 for manually switching the effect, and an effect optimum for the currently selected accompaniment pattern. And the effect automatic selection switch 104 that can instantly select
It has an accompaniment stop switch 105 for stopping accompaniment, and includes a keyboard (not shown) and the like, and is connected to the CPU 110.

The CPU 110 fetches the key operation state from the switch group 101, and the effect automatic selection switch 10
When 4 is pressed, table 1 for automatic effect selection
The optimum effect number (effect No.) for the currently selected accompaniment is read out from 11, and the effect N
O. The data is output as an effect type change signal 112 to a DSP 113 for effect processing described later.

FIG. 2 is a table 11 for automatic effect selection.
1 (corresponding to effect information storage means), and optimal effect effects such as distortion, reverb, chorus, etc. are stored in the form of a table according to accompaniment patterns such as rock, waltz, and ballad.

When the effect changeover switch 103 is pressed, the CPU 110 outputs the effect No. corresponding to the pressed switch. The effect type change signal 1
DSP (Digital signal Proccesor) 113 as 12
Output to. Furthermore, the state of a performance operation unit such as a keyboard (not shown) is fetched and a performance instruction is given to the sound source 114.

It should be noted that the CPU 110 has the effect NO. And a CPU internal RAM indicated by 110a and 110b for storing an automatic selection flag for holding whether the automatic effect selection by the effect changeover switch 103 is on or off.

When the accompaniment changeover switch 102 is pressed, the CPU 110 reads out the accompaniment pattern corresponding to the accompaniment pattern from the accompaniment pattern data 115, and the internal counter 110c.
To start the accompaniment. Further, when the effect automatic selection flag 110a is turned on, the effect type change signal 112 corresponding to the accompaniment pattern is sent to the DSP 11
Output to 3. The accompaniment pattern data 115 corresponds to accompaniment pattern storage means that stores a plurality of types of accompaniment patterns as data.

The sound source 114 is instructed by the CPU 110 to perform the accompaniment pattern and the performance by the player from the keyboard, reads each musical tone waveform from the waveform memory 116, generates musical tone data, and outputs it to the DSP 113.

The DSP 113 has a function as an effect adding means, and for the tone data, the CPU 110
Effect No. specified from Perform digital signal processing corresponding to and add effects. DSP113
The output from is output from the speaker 119 via the D / A converter 117 and the amplifier 118.

The accompaniment changeover switch 102 and the CPU
110 constitutes an accompaniment pattern selection means 120. Further, the CPU 110 independently has a function as a reading unit. The CPU 110 is the accompaniment stop switch 1
When 05 is pressed, the accompaniment to the musical sound is stopped.

Next, the operation of this apparatus will be described. FIG. 3 is a flowchart of a control program relating to effect switching which is repeatedly executed by the CPU 110. This flowchart is realized as an operation in which the CPU 110 executes a program stored in an internal ROM (not shown).

In step S1, the key operation state in the switch group 101 of FIG. 1 is fetched. Next, in step S2, the type of switch for which the key operation has been performed is determined. If the accompaniment changeover switch 102 is pressed, step S3 is performed, if the effect changeover switch 103 is pressed, step S4 is performed, and if the effect automatic selection switch 104 is pressed, step S5 is performed.

First, in step S2, the accompaniment selector switch 1
When it is determined that 02 is pressed, the process proceeds to step S3, and the accompaniment pattern corresponding to the accompaniment changeover switch 102 is changed. That is, the accompaniment changeover switch 102 has selection buttons from [0] to [9], and these selection buttons [0] to [9] correspond to various accompaniment patterns stored in the accompaniment pattern data 115. ing.

For example, the accompaniment changeover switch 102 has been used up to now.
If the selection button [0] is pressed and "lock" is selected, when the selection button [1] of the accompaniment changeover switch 102 is newly pressed, the accompaniment corresponding to this selection button [1] is selected. An internal counter 110 for patterns (eg, "waltz")
The data is read from the accompaniment pattern data 115 according to c and sent to the sound source 114.

In the sound source 114, an accompaniment pattern and a performance by the player from the keyboard are instructed from the CPU 110, and each musical tone waveform is read from the waveform memory 116 to generate musical tone data and output to the DSP 113. Therefore, the accompaniment pattern is changed, and in the above example, the accompaniment pattern is changed from "rock" to "waltz".

Then, in step S6, the CPU internal RAM
It is determined whether or not the effect automatic selection flag 110a stored in is ON. When the effect automatic selection flag 110a is off, the routine of this time is ended. Therefore, although the accompaniment pattern is changed, the performance is started with the same effect as the last time.

On the other hand, the effect automatic selection flag 110a
When is on, the effect automatic selection table 111 is rewritten to the optimum effect number (effect No.) for the accompaniment pattern changed this time in step S7.
For example, since the accompaniment pattern is changed from "rock" to "waltz" as described above, the optimum effect number is NO. No. corresponding to "reverb" from the effect automatic selection table 111 shown in FIG. Becomes

Then, in step S8, the effect number NO. Data is the effect type change signal 11
2 is output to the DSP 113 for effect processing.
As a result, the DSP 113 sends the effect NO. A process of adding an effect corresponding to the data is performed (see a subroutine described later).

For example, since the accompaniment pattern has been changed from "rock" to "waltz", the optimum effect number corresponding to "reverb" is NO. Therefore, "Waltz"
Optimal "reverb" is added to the accompaniment pattern of.

In step S2, the effect changeover switch 1
If it is determined that the effect No. 03 is pressed, the process proceeds to step S4, and the effect No. Change to. That is, the effect changeover switch 103 also has selection buttons from [0] to [9], and these selection buttons [0] to [9] are used for various effects stored in the effect automatic selection table 111. It corresponds.

For example, until now, the selection button [0] of the effect changeover switch 103 has been pressed to cause "distortion".
When the selection button [1] of the effect changeover switch 103 is newly pressed when is selected, the effect (for example, “reverb”) corresponding to the selection button [1] is automatically selected in the effect automatic selection table. Read from 111.

Next, in step S8, the effect No. corresponding to the selected selection button of the effect changeover switch 103 is selected. Is output to the DSP 113 as the effect type change signal 112 and the routine ends. Therefore, the effect is changed from "distortion" to "reverb" by the player's operation.

If it is determined in step S2 that the effect automatic selection switch 104 has been pressed, the flow advances to step S5 to determine the state of the effect automatic selection flag 110a stored in the CPU internal RAM. When the effect automatic selection flag 110a is off, step S9
To turn on the same flag, and the effect automatic selection flag 11
If 0a is on, the flag is turned off in step S10. Then, step S9 or step S1
When 0 is passed, this routine ends.

As a result, each time the effect automatic selection switch 104 is pressed, the effect automatic selection flag 110a is switched on / off each time. Then, as described above, the state of the flag is determined in step S6 according to the state of the flag, and the effect automatic addition control is performed.

Next, FIG. 4 is a flow chart showing a program for effect addition processing which is repeatedly executed by the DSP 113. In this operation, the DSP 113 executes a microprogram stored in an internal ROM (not shown). Is realized as.

First, in step S20, C in FIG.
The effect type change signal 112 from the PU 110 is DS
It is determined whether or not it is output to P113. This signal is output by the processing of step S8 of FIG. 3 described above by the CPU 110.

If the effect type change signal 112 is not output, the determination result of step S20 is NO and the process proceeds to step S23. If it is output, the determination result of step S20 is YES and step S2.
Go to 1.

In step S21, the musical tone (effect sound) to which the effect currently being output is added to the DSP 113 is muted. In the following step S22, the effect NO. (Step S8 in FIG. 1
(Refer to FIG. 3) is loaded into the DSP 113, and the start address of the effect processing subroutine is calculated.

Next, in step S23, a subroutine for effect processing is called. in this case,
When the effect type is changed in steps S20 and S21, the start address of the subroutine is the address newly calculated in step S22. As a result, the effect is switched.

On the other hand, if NO in step S20 and the effect type is not changed, the address obtained up to the previous time is directly specified as the start address of the subroutine. Therefore, the same effect processing as before is executed. As shown in FIG. 4, the processing called as the subroutine is, for example, reverb processing (step S24), chorus processing (step S25), delay processing (step S26), or the like.

After the effects are added to the musical sound data by these effect processes, step S27
The obtained musical tone data is the D / A converter 1 of FIG.
It is output to 17. Step S20 to step S described above
The operation of 27 is repeatedly executed in synchronization with the sampling period in the D / A converter 117, for example.

Next, a case where the user actually uses this device will be described. First, the user presses the effect automatic selection switch 104 to turn on the effect automatic selection function. As a result, the effect automatic selection flag 110a is turned on.

Then, when "lock" is selected and pressed by the accompaniment changeover switch 102, the "lock" accompaniment pattern starts to sound. At this time, since the effect automatic selection flag 110a is ON, the optimum effect is automatically selected from the effect automatic selection table 111 for the "rock" accompaniment pattern changed this time. Therefore, playing with the keyboard produces a tone with a "distortion" effect.

Furthermore, when the accompaniment pattern is switched to "waltz", a tone color having a "reverb" effect on the performance is automatically obtained. At this time, if "echo" is selected with the effect selector switch 103, the effect is switched from the "reverb" effect to the "echo" effect.

As described above, in this embodiment, the most suitable effect is automatically selected from the plurality of effects for one selected accompaniment pattern. Therefore, it is not necessary to select the effect most suitable for the accompaniment pattern by trial and error, and it does not take time and effort. As a result, even a beginner can easily add an optimum effect.

Next, FIG. 5 is an overall configuration diagram of an embodiment in which the effect automatic selection device according to the invention of claim 2 is applied to an electronic musical instrument. In the description of FIG. 5, the same components as those in FIG. 1 described above will be denoted by the same reference numerals and redundant description will be omitted. In FIG. 5, the CPU 110 has effect NO. , Currently accompaniment NO. And candidate NO. Have internal CPU RAMs 110b, 110d, and 110e for storing.

Then, the CPU 110 uses the switch group 101.
When the key operation state is fetched from the effect automatic selection switch 104 is pressed, the optimum effect number (effect No.) for the accompaniment currently selected is read from the effect automatic selection table 131, and the effect No. Change data to effect type change signal 132
Is output to the DSP 113 for effect processing.

In addition, the CPU 110, when the effect automatic selection switch 104 is pressed a plurality of times, similarly to the effect NO. Update the effect NO. Output an effect type change signal 132 corresponding to.

Here, table 1 for automatic effect selection
31 (corresponding to effect information storage means) is different from that of the above-described embodiment, and stores a plurality of effect information ranked for each accompaniment pattern. That is, FIG. 6 shows an example of the effect automatic selection table 131. Corresponding to, the effect N that is most suitable for the accompaniment
O. Is the first candidate (candidate NO.01) and the second candidate (candidate N).
O. 02), ..., And are stored in the form of a table in this order.

Each accompaniment NO. (00, 01, 02 ...
.) Correspond to accompaniment patterns such as rock, waltz, ballad, etc., respectively. Also, each effect N
O. Are, for example, distortion, reverb,
Supports effects such as chorus.

The effect automatic selection switch 104 and the CPU 110 constitute an effect information selection means 140 for selecting an arbitrary rank from a plurality of effect information for each accompaniment pattern. Further, the CPU 110 has a function as a reading unit that reads out the effect information of the selected rank in association with the selected accompaniment pattern from the effect automatic selection table 131. Others are the same as the above-mentioned embodiment.

Next, the operation of this apparatus will be described. FIG. 7 is a flowchart of a control program relating to effect switching which is repeatedly executed by the CPU 110. In step S30, the key operation state of the switch group 101 is fetched. Next, in step S31, the type of switch for which the key operation has been performed is determined. When the accompaniment changeover switch 102 is pressed, the processing of step S32, when the effect changeover switch 103 is pressed, step S33, and when the effect automatic selection switch 104 is pressed, the processing of step S34 is executed.

First, when it is determined in step S31 that the accompaniment changeover switch 102 has been pressed, the process proceeds to step S32, and the current accompaniment N stored in the CPU internal RAM.
O. 110d is changed according to the selection status of the accompaniment changeover switch 102. The CPU 110 determines that the current accompaniment NO. With reference to, the accompaniment pattern corresponding thereto is read from the accompaniment pattern data 115 and sent to the sound source 114.

In the sound source 114, the accompaniment pattern and the player's performance from the keyboard are instructed by the CPU 110, and each musical tone waveform is read from the waveform memory 116 to generate musical tone data and output to the DSP 113. Therefore, the accompaniment pattern is changed.

Next, in step S35, the CPU internal RA
Candidate NO. 110e is cleared to "00". In this process, when the user later presses the effect automatic selection switch 104, the effect candidates corresponding to the currently selected accompaniment pattern are sequentially selected from the first candidate based on the operation of step S34 and subsequent steps described later. Is a process for Since the process of step S37 is not executed only by pressing the accompaniment changeover switch 102, the currently selected effect is not changed.

When it is determined in step S31 that the effect changeover switch 103 has been pressed, the process proceeds to step S33, and the effect N stored in the CPU internal RAM is stored.
O. 110b is changed according to the selection status of the effect changeover switch 103. Next, in step S36, the candidate NO. 11
Clear 0e to "00". The meaning of this process is the same as that in step S35 described above.

Further, in step S37, the effect type change signal 132 is output to the DSP 113, so that the new effect NO. 110b is transmitted to the DSP 113. On the other hand, the DSP 113 executes the addition process of the effect that is newly changed based on the operation flowchart shown in FIG.

On the other hand, if it is determined in step S31 that the effect automatic selection switch 104 has been pressed, the process proceeds to step S34, in which the candidate NO. Increment the value of 110e.

For example, with the accompaniment changeover switch 102, the accompaniment NO. If the effect automatic selection switch 104 is pressed after the accompaniment of 5 is selected, the CPU internal RA
The current accompaniment NO. Stored in M110d. Value is "0
5 ", the value of the candidate No. stored in the CPU internal RAM 110e is" 01 ".

Next, in step S38, the CPU internal RAM 110 is executed based on the processing of step S32 described above.
The current accompaniment number stored in d. Value and step S
34 incremented by 34 and stored in the CPU internal RAM 110e. By accessing the effect automatic selection table 131 (see FIG. 6) of FIG.
Is read out and set in the CPU internal RAM 110b.

For example, as described above, the CPU internal RA
The current accompaniment NO. Stored in M110d. Value of "0
5 ", if the value of the candidate No. stored in the CPU internal RAM 110e is" 01 ", the value of the effect No. is first determined from the effect automatic selection table 131.
The candidate “3E” is read. As a result, the contents of the CPU internal RAMs 110d, 110b and 110e are as shown in FIG.

After the process of step S38, the effect type change signal 132 is set to DS in step S37.
By outputting to P113, CPU internal RAM11
Effect No. stored in 0b. Is transmitted to the DSP 113.

If the user does not like the selected effect, he or she further presses the effect automatic selection switch 104. As a result, the candidate NO. Is incremented to "02", and in the subsequent step S38, the current accompaniment NO. The second effect “effect No.” corresponding to is read.

In this way, the user does not press the accompaniment changeover switch 102 and the effect changeover switch 103 but sequentially presses only the effect automatic selection switch 104, so that the effect candidate corresponding to the currently selected accompaniment is the first one. The candidate, the second candidate, the third candidate, ... Are sequentially selected.

When the automatic effect selection switch 104 is pressed after the accompaniment changeover switch 102 or the effect changeover switch 103 has been pressed, the effect candidates corresponding to the currently selected accompaniment are again in order from the first candidate. To be selected.

With the above operation, the user can quickly select the optimum effect for each accompaniment by a simple key operation by the effect automatic selection switch 104, and the effect change switch 103 causes the effect No. You can also specify and add any effect.

As described above, in this embodiment, the effect of the selected rank is automatically selected and added to the selected one accompaniment pattern from the plurality of ranked effects. Therefore, even a beginner can easily add effects in any order.

Next, FIG. 9 is an overall configuration diagram of an embodiment in which the effect automatic selection device according to the invention of claim 3 is applied to an electronic musical instrument. In the description of FIG. 9, the same components as those in FIG. 1 described above will be denoted by the same reference numerals and redundant description will be omitted.

In FIG. 9, a switch group 101 includes an accompaniment changeover switch 102, an effect changeover switch 103, an effect automatic selection switch 104, an accompaniment stop switch 105, and an effect parameter change switch 1
Has 06. The effect parameter change switch 106 is composed of, for example, three dial-shaped switches, and the value of the effect parameter can be changed (corrected) by operating each switch.

The CPU 110 takes in a key operation state from the switch group 101, and when the accompaniment changeover switch 102 is pressed, it reads an accompaniment pattern corresponding to it from the accompaniment pattern data 115 and controls the internal counter 110c to start the accompaniment. .. When the effect changeover switch 103 is pressed, the effect No. corresponding to the pressed switch is set. Is output to the DSP 152 as the effect type change signal 112.

Further, the effect automatic selection switch 10
4 is operated, the optimum effect parameter for the currently selected accompaniment is read from the accompaniment corresponding effect parameter table 150, and the read effect parameter is written in the effect parameter memory 151.

The DSP 152 reads the effect type automatically selected by the effect automatic selection switch 104 and the effect parameter corresponding to the tone data from the effect parameter memory 151, executes the digital signal processing, and adds the effect. To do.

On the other hand, when the effect parameter changing switch 106 is operated, the CPU 110 sends the parameter value corresponding to the change contents of the effect parameter changing switch 106 to the accompaniment corresponding effect parameter table 150, and the effect parameter of the table 150. Value is specified and rewritten (that is, the effect parameter value is changed), the effect parameter selected at that time is read, and the read effect parameter is stored in the effect parameter memory 1
Write in 51.

The DSP 152 has a function as an effect adding means, reads out the effect type selected by the effect changeover switch 103 and the effect parameter designated by the effect type switch from the effect parameter memory 151 for the tone data. Perform signal processing and add effects. The effect parameter change switch 106 has a function as an effect designating unit that designates an effect to be added (actually, an effect parameter is designated).

Here, the accompaniment corresponding effect parameter table 150 (corresponding to effect parameter storage means) stores parameter information of a plurality of types of effects for each accompaniment pattern. That is, FIG. 10 is an example of the accompaniment corresponding effect parameter table 150, and the optimum effect parameters for the accompaniment are stored in the form of a table corresponding to each accompaniment pattern.

Each accompaniment pattern is, for example, rock, hard rock, swing, etc., and these accompaniment patterns correspond to effect types such as distortion and reverb, and the effect parameters for each effect type are optimal for each accompaniment pattern. Selected items are stored.

The CPU 110 has a function as a reading means for reading out the effect parameter information corresponding to the selected accompaniment pattern from the accompaniment corresponding effect parameter table 150. Others are the same as the above-mentioned embodiment

Next, the operation of this apparatus will be described. FIG. 11 is a flowchart of a control program relating to effect switching which is repeatedly executed by the CPU 110.

In step S40, the key operation state of the switch group 101 is fetched. Then, step S
At 41, the type of switch for which the key operation has been performed is determined.
If the accompaniment switch 102 is pressed, step S4
2. If the effect changeover switch 103 is pressed, the processing of step S43 is executed, and if the effect automatic selection switch 104 is pressed, the processing of step S44 is executed.

First, if it is determined in step S41 that the accompaniment changeover switch 102 has been pressed, the flow advances to step S42 to change to an accompaniment pattern corresponding to the accompaniment changeover switch 102. That is, the CPU 110 reads the selected accompaniment pattern from the accompaniment pattern data 115 according to the internal counter 110c and sends it to the sound source 114.

In the sound source 114, the accompaniment pattern and the performance by the player from the keyboard are instructed by the CPU 110, and each musical tone waveform is read from the waveform memory 116 to generate musical tone data and output to the DSP 113. Therefore, the accompaniment pattern is changed.

Then, in step S45, the CPU internal RA
Effect automatic selection flag 110a stored in M
It is determined whether or not is on. When the effect automatic selection flag 110a is ON, the (optimal) effect parameter corresponding to the currently selected accompaniment pattern is read from the accompaniment corresponding effect parameter table 150 in step S46, and is stored in the effect parameter memory 151 in the form of a table. send.

As a result, in the DSP 152, the effect automatic selection switch 104 is added to the musical tone data.
The effect type automatically selected by and the effect parameter corresponding thereto are read from the effect parameter memory 151, digital signal processing is executed, and the effect is added.

On the other hand, when the effect automatic selection flag 110a is off from the determination result of step S45, the parameter value corresponding to the change contents of the effect parameter change switch 106 is sent to the accompaniment corresponding effect parameter table 150 in step S47, Table 150
Change and rewrite the value of the effect parameter in.

Thereafter, the effect parameter selected at that time is read from the accompaniment corresponding effect parameter table 150, and the read effect parameter is written in the effect parameter memory 151.

As a result, in the DSP 152, the effect parameter selected by the effect changeover switch 103 is read from the effect parameter memory 151 for the musical tone data, digital signal processing is executed, and the effect is added.

In this case, the effect parameter change switch 106 changes the value of the effect parameter in the accompaniment corresponding effect parameter table 150 and the value is written in the effect parameter memory 151. Therefore, the changed effect parameter is dealt with. Effects are added.

For example, when the user selects the effect type called distortion for the accompaniment pattern "lock" by the effect changeover switch 103, the effect parameter change switch 106 is operated to change the parameter content of this distortion. Therefore, it is possible to easily obtain the distortion effect effect that most brings out the "rock" at this time.

If it is determined in step S41 that the effect changeover switch 103 has been pressed, the process proceeds to step S43 and the effect No. corresponding to the effect changeover switch 103 is selected. Change to.

Next, in step S48, the effect No. corresponding to the selected selection button of the effect changeover switch 103 is selected. Is output to the DSP 152 as the effect type change signal 112 and the routine ends. Therefore, the effect is changed to another type.

If it is determined in step S41 that the effect automatic selection switch 104 has been pressed, step S4
4, the state of the effect automatic selection flag 110a stored in the CPU internal RAM is determined. If the effect automatic selection flag 110a is off, step S
If the flag is turned on in 49 and the effect automatic selection flag 110a is turned on, the flag is turned off in step S50. Then, after passing through step S49 or step S50, the routine of this time is ended.

As a result, each time the effect automatic selection switch 104 is pressed, the effect automatic selection flag 110a is switched on / off each time. Then, as described above, the state of the flag is determined in step S45 according to the state of the flag, and the effect automatic addition control is performed.

With the above operation, the user can quickly select the optimum effect for each accompaniment by a simple key operation by the effect automatic selection switch 104, and change the effect content by the effect parameter change switch 106. You can

As described above, in this embodiment, the content of the effect parameter corresponding to the specified effect is simply changed and added to one selected accompaniment pattern. Therefore, even a beginner can easily specify an effect parameter and add an effect.

In the above embodiment, since the DSP that digitally processes the signal is used for the effect addition processing, if such a DSP is combined with another digital signal processing device, it can be used in the field of electronic musical instruments. However, it is possible to add acoustic effects to various musical sounds other than the musical tone signals of the electric guitar as described above.

The above embodiment is an example in which the present invention is applied to an electronic musical instrument that generates a musical tone signal, but the present invention is not limited to this, and an acoustic device other than the electronic musical instrument (for example, a karaoke device). ) Is also widely applicable. Alternatively, it can be applied to an apparatus for generating a tone signal by a personal computer.

[0103]

According to the invention described in claim 1, the most suitable effect can be automatically selected from a plurality of effects for one selected accompaniment pattern, and the effect is tried and errored. It is possible to obtain the effect that there is no need to make a selection and it does not take time and effort. As a result, even a beginner can easily add an optimum effect.

According to the second aspect of the present invention, an effect of a selected rank is automatically selected from a plurality of ranked effects and added to one selected accompaniment pattern. You can As a result, even a beginner can easily add effects in any order.

According to the third aspect of the present invention, the contents of the effect parameter corresponding to the specified effect can be easily changed and added to one selected accompaniment pattern. As a result, even a beginner can easily specify an effect parameter and add an effect.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an embodiment of an effect automatic selection device according to the invention of claim 1;

FIG. 2 is a diagram showing an example of an effect automatic selection table of the same embodiment.

FIG. 3 is a flowchart of a control program relating to effect switching of the embodiment.

FIG. 4 is a flowchart showing a program for effect addition processing of the embodiment.

FIG. 5 is a diagram showing an entire configuration of an embodiment of an effect automatic selection device according to the invention of claim 2;

FIG. 6 is a diagram showing an example of an effect automatic selection table of the embodiment.

FIG. 7 is a flow chart of a control program for effect switching according to the embodiment.

FIG. 8 is a CPU internal RAM 110d, 110 of the embodiment.
It is a figure which shows the content of b and 110e.

FIG. 9 is a diagram showing an overall configuration of an embodiment of an effect automatic selection device according to the invention of claim 3;

FIG. 10 is a diagram showing an example of an accompaniment-compatible effect parameter table of the embodiment.

FIG. 11 is a flow chart of a control program for effect switching according to the embodiment.

[Explanation of symbols]

101 switch group 102 accompaniment changeover switch 103 effect changeover switch 104 effect automatic selection switch 105 accompaniment stop switch 106 effect parameter change switch (effect designating means) 110 CPU (reading means) 111 effect automatic selection table (effect information storage means) 110a- 110e CPU internal RAM 112, 132 Effect type change signal 113, 152 DSP (effect adding means) 114 Sound source 115 Accompaniment pattern data 116 Waveform memory 117 D / A converter 118 Amplifier 119 Speaker 120 Accompaniment pattern selecting means 131 For effect automatic selection Table (effect information storage means) 140 Effect information selection means 150 Accompaniment-compatible effect parameter table (Effect parameter memory means) 151 Effect parameter memory

Claims (3)

[Claims] 1. An accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, an effect information storage means for storing effect information for each accompaniment pattern, and an accompaniment pattern to be generated among a plurality of types of the accompaniment pattern storage means. From the effect information storage unit, and an accompaniment pattern selection unit that selects one accompaniment pattern from the effect information storage unit. Then, the effect automatic selecting device is provided with an effect adding means for adding an effect corresponding to the effect information read from the reading means to a given musical sound. 2. An accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, an effect information storage means for storing a plurality of ranked effect information for each accompaniment pattern, and a plurality of effect information for each accompaniment pattern. Among these, effect information selecting means for selecting an arbitrary rank, accompaniment pattern selecting means for selecting an accompaniment pattern to be generated from a plurality of types of the accompaniment pattern storage means, and accompaniment patterns selected by the accompaniment pattern selecting means. Reading means for reading from the effect information storage means the effect information of the rank corresponding to the pattern and selected by the effect information selecting means, and when one accompaniment pattern is selected by the accompaniment pattern selecting means, a musical tone is given. On the other hand, the effect information read from the reading means is Effect automatic selection device characterized by comprising a, and effect adding means for adding an effect corresponding to. 3. An accompaniment pattern storage means for storing a plurality of types of accompaniment patterns, an effect parameter storage means for storing parameter information of a plurality of types of effects for each accompaniment pattern, and an effect designating means for designating an effect to be added. An accompaniment pattern selection means for selecting an accompaniment pattern to be generated from a plurality of types of the accompaniment pattern storage means; and effect parameter information corresponding to the accompaniment pattern selected by the accompaniment pattern selection means. When one accompaniment pattern is selected by the read-out means for reading from the read-out means and the accompaniment pattern selection means, the effect designation means specifies one of the effect parameters read out from the read-out means for a given musical sound. E corresponding to the effect Effect automatic selection apparatus comprising: the effect adding means for adding an effect based on the E transfected parameter, a.