JPH1069274A - Effect giving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify operation by reflecting parameter values to be changed according to the operation of operating elements for changing the parameter values at the prescribed parameters among the parameters to determine the characteristics of prescribed effects. SOLUTION: This device has plural effect buttons 161 for assigning the on and off of the effects corresponding to the effects which can be imparted to musical tones. The device is provided with a pedal 171, a pedal assignment button 162 to be pushed at the time of setting and changing (editing) the parameter of this pedal 171, a value dial 165 to increase or decrease the parameter values of the parameters selected by operating a parameter button 163, etc. If the effects are selected by pushing the plural effect buttons 161 in correspondence to various kinds of the effects in such constitution, the kinds of the parameters to be controlled by the pedal 171 in these effects are automatically set according to the selected effects.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an effect-applying device called an "effector" for applying an effect (e.g., delay, wah, chorus) to an input musical tone.

[0002]

2. Description of the Related Art Among effectors that apply an effect to an input musical tone and output the effect, there is a so-called multi-effector that can apply a plurality of types of effects. In using the multi-effector, the user of the multi-effector specifies, for each effect, whether to reflect the effect on the input musical sound (ON) or not (OFF), and furthermore, to reflect the effect on the musical sound. The parameter value of a parameter (for example, a delay time in the case of “delay”, a feedback amount, and the like) that defines the specified effect is set. Then, in this multi-effector, the effect defined by the set parameter value is reflected on the musical sound. In some cases, among these parameters, there are parameters whose parameter values can be changed by pedal operation. When the parameter value is to be changed by the pedal operation, the type of the parameter whose parameter value is changed by the pedal operation is also set by the user. For example, if "reverb time" is selected as a parameter for changing the parameter value by pedal operation, the reverberation section changes in time when the pedal is operated thereafter.

[0003]

The above operation will be described as an example of an effect called a "wah pedal".
In the effect called "Wah pedal", assign the "Frequency" parameter to the pedal, and operate the pedal to "Frequency"
The parameter value (frequency) of the parameter changes. In this case, first, the effect of "wah pedal" is turned on, and then the "frequency" parameter is selected as a parameter for changing the parameter value by pedal operation.

As described above, in the case of the effect called "wah pedal", it is natural that the "frequency" parameter is assigned to the pedal, but the above two operations are required, and the operation is troublesome. . The present invention has been made in view of the above circumstances, and has as its object to provide an effect imparting device whose operation is simplified.

[0005]

According to a first aspect of the present invention, there is provided an effect imparting apparatus for inputting one or more types of effects selected from a plurality of types of effects whose characteristics are determined by parameters. (1-1) an effect selection operator for selecting a desired effect from a plurality of types of effects (1-2) a parameter value changing operator for changing a parameter value (1-3) When a predetermined effect is selected from a plurality of types of effects by the effect selection operator, the parameter value changed in accordance with the operation of the parameter value changing operator is set to the predetermined effect. And a control means for reflecting the parameter on a predetermined parameter among the parameters defining the characteristics of the above.

Here, more specifically, the effect applying apparatus of the present invention applies one or more types of effects selected from a plurality of types of effects whose characteristics are determined by parameters to an input musical tone. (2-1) an effect selection operator for selecting a desired effect from a plurality of types of effects; (2-2) a parameter value changing operator responsible for changing a parameter value. -3) A memory for storing identification information indicating a parameter on which a parameter value changed by the parameter value changing operator is reflected. (2-4) A predetermined effect is selected from a plurality of effects by the effect selecting operator. Storage means for storing, in the memory, identification information indicating a predetermined parameter among parameters defining characteristics of the predetermined effect in response to the selection; (2-5) parameter value Further for changing parameter values in response to the operation of the operator, the predetermined effect, characterized by comprising a control means to be reflected on the parameter indicated by the identification information stored in the memory.

Here, the parameter value changing operator is typically a pedal operated by a foot. The effect imparting device of the present invention is configured such that, when a predetermined effect is selected from a plurality of types of effects by the effect selecting operator, the parameter value changed in accordance with the operation of the parameter value changing operator, Provided with a control means for reflecting a predetermined parameter among parameters defining characteristics of a predetermined effect,
Specifically, for example, a memory for storing identification information indicating a parameter reflecting a parameter value changed by a parameter value changing operator (for example, a pedal) is prepared, and a predetermined value is set by an effect selecting operator. In response to the selection of the effect, the identification information indicating the predetermined parameter among the parameters defining the characteristics of the predetermined effect is stored in the memory, and the identification information is changed in accordance with the operation of the parameter value changing operator. The parameter value is reflected on the parameter of the predetermined effect indicated by the identification information stored in the memory. Therefore, depending on the effect, the user operates the effect selection operation element to obtain a desired effect. An operation of selecting an effect and assigning a parameter whose parameter value is to be changed to a parameter value changing operator as in the past. Is not required, that amount is released from Hanrawashi of the operation.

[0008]

Embodiments of the present invention will be described below. FIG. 1 is a block diagram illustrating a hardware configuration of an embodiment of an effect providing apparatus according to the present invention. This figure 1
The effect imparting device 10 includes a CPU 11 that executes a program and controls the operation of the entire effect imparting device in accordance with the content of the execution, a ROM 12 that stores programs and parameters executed by the CPU 11, and a program executed by the CPU 11. RAM 13 as a working area for various necessary registers and a storage area for parameter values set by a user, and a DSP (Digital Signa) for effecting a digital tone signal
lProcessor) 14, an LED for turning on / off depending on whether or not an effect corresponding to the selected effect is selected, a display means 15 including an LCD for displaying parameter setting values and the like, and various instructions to the effect applying device 10. Control means 1 comprising a panel switch or the like for inputting
6, and a pedal 17 operated by a user to change the effect given to the musical sound in real time, and these are interconnected by a bus 20.

FIG. 2 is a diagram showing a panel on which the display means 15, the operation means 16 and the pedal 17 shown in FIG. 1 are arranged. This panel is provided with a plurality of effect buttons 161 for designating ON / OFF of the effects corresponding to the effects (effects) that can be applied to the musical sound by the effect applying device. Includes a wah button 161_1 for turning on and off the wah (WAH) effect and a chorus button 161_2 for turning on and off the chorus effect.

[0010] Here, "ON" means that the effect is selected as an effect to be added to a musical tone.
“Off” means that the effect is not reflected in the musical sound. When “On”, the effect button 16
The LED 151 corresponding to “1” is turned on, and turned off when “off”. These effect buttons 161 correspond to the effect selection operator according to the present invention.

The panel shown in FIG.
1. The pedal assign button 16 that is pressed when setting or changing (editing) the parameters of the pedal 171
2. A parameter button 163 for selecting a parameter to be edited, an EXIT button 164 for ending the editing operation, and a parameter button 1
A value dial 165 is provided to operate 63 to increase or decrease the parameter value of the selected parameter.
In addition, a single effect or a combination of a plurality of effects is associated with this panel, and a switch 166 that can be switched to the associated effect or the combination thereof by operation, an LCD 152 that displays various information, Further, other buttons and the like are provided, but are not directly related to the present invention, and therefore, the description is omitted.

FIG. 3 is a diagram showing a storage area for parameter values and the like set by the user in the RAM 13 shown in FIG. Here, a wah effect and a chorus effect will be described as representative examples. In the following, for the sake of simplicity, it is possible to use the same name for the parameter name and the storage area for storing the parameter value of the parameter without discriminating between the parameter name and the parameter value of the parameter. is there.

The parameters defining the WAH effect include “Effect”, “FX Select”, and “P
edal "," Rate "," Depth ", and" Level ". The “Effect” parameter is a parameter for determining whether the WAH effect is turned on or off. The “Effect” area shown in FIG.
"N" or "OFF" is stored.

“FX Select” is a parameter that defines the type of WAH effect, and is “Pedal”.
WAH "or" Auto WAH ". Here, the WAH effect is an LPF (low-pass filter) or a BPF that acts on a musical sound.
The effect obtained by changing the cutoff frequency or center frequency of the (bandpass filter) is referred to as “Peda”.
In the case of "1 WAH", this frequency is changed by the user operating the pedal, and in the case of "Auto WAH", the frequency is automatically changed by an LFO (low frequency oscillator).

[0015] Among the parameters defining the WAH effect shown in Fig. 3, the "Pedal" parameter is FXS.
is an effective parameter when select is a Pedal WAH, and indicates a cutoff frequency or a center frequency of a filter composed of an LPF or a BPF.
Any value within the range normalized to 0 is stored.

The “Rate” parameter is FX Sel
ect is an effective parameter when Auto WAH, and is an LFO cycle (modulation speed of the WAH effect)
Is stored in the range of 0 to 100.
"Depth" also has FX Select Auto W
A parameter that is valid for AH and represents the amplitude of the LFO (the modulation depth of the WAH effect), from 0 to 10
A numerical value in the range of 0 is stored.

"Level" is a parameter representing the volume, and stores a numerical value in the range of 0 to 100. Further, as shown in FIG. 3, the parameters defining the CHORUS effect include “Effect” and “Ra”.
te "," Depth ", and" Level ". "E
“effect” is “Effect” of the WAH effect.
Similarly to the above, the parameter determines whether the CHORUS effect is on or off, and includes “ON” or “OF”.
F "is stored.

"Rate", "Depth", "Lev"
“el” indicates the modulation speed, modulation depth, and volume level of the CHORUS effect, respectively, from 0 to 10
It is stored as a numerical value within the range of 0. Other effects are also defined in the effect adding device in the present embodiment, but the description is omitted here.

In the area in the RAM shown in FIG. 3, "Target" and "on / off" are shown as parameters assigned to the pedal. "Turge
“t” stores the type of parameter to be controlled by the pedal. For example, in the case of the above-described WAH effect, “Pedal”, “Rate”, “Dept”
h "and" Level ". Also, CHO
For the RUS effect, "Rate", "Dept
h "and" Level ". One parameter name selected from among the plurality of parameters is stored in “Target”.

In "on / off", whether the pedal is controlled (on) or not (off) is set. Also, in FIG. 3, each buffer “Target-buffe” assigned to the pedal and storing each parameter “Target” and “on / off”
r "and" on / off-buffer ". Details will be described later.

Next, the editing operation will be described with reference to FIGS. Here, the edit operation is a parameter that defines an effect, for example, Effect, FX Select in the case of a WAH effect.
t, Pedal, Rate, Depth, Level
(See FIG. 3) and pedal parameters (Target
t, on / off).

The editing of effect parameters is performed in the following procedure. (1) A desired effect is selected by the effect button 161 shown in FIG. For example, when the WAH effect button 161_1 is operated, the WAH effect is selected. (2) Next, the user operates the parameter button 163 to select a parameter (for example, Level) to be set or changed. (3) Operate the value dial 165 to change the parameter value. (4) When changing the parameter value for another parameter, the above (2) and (3) are repeated. (5) Press the EXIT button 164 to end the editing operation.

Each time the effect button 161 is pressed, the effect corresponding to the effect button is switched on and off by a toggle. When the effect button 161 is on, the corresponding LED 151 is turned on. The LED 151 turns off. Editing of pedal parameters is performed in the same manner as in editing of effects, in the following procedure. (1) Press the pedal assign button 162. (2) Select a parameter (Target or on / off) to be changed using the parameter button 163. (3) Operate the value dial 165 to change the value of the parameter. (4) When changing the value of the other parameter, the above (2) and (3) are repeated. (5) Press the EXIT button 164 to end the editing operation.

Hereinafter, a routine executed by the CPU 11 in the effect giving device whose hardware configuration is shown in FIG. 1 will be described. FIG. 4 is a flowchart of the main routine. First, in step S401, various registers are initialized. Here, b_flag is also 0
Is initialized to b_flag will be described later.

Next, in step S402, it is detected whether or not the WAH effect has been selected by operating the WAH effect button 161_1. If the WAH effect has been selected, the flow proceeds to step S403, in which the WAH editing routine (see FIG. 5) is performed. ). Step S4
In 04, it is detected whether or not the CHORUS effect has been selected by operating the CHORUS effect button 161_2. If the CHORUS effect has been selected, the process proceeds to step 405, where the CHORUS edit routine (see FIG. 7) is executed.

The same applies to other effects, but the description of other effects is omitted here. At step 406, the pedal assign button 16
It is detected whether or not editing of the pedal is selected by operating the pedal 2, and if editing of the pedal is selected, the process proceeds to step S407 to execute a pedal assignment processing routine (see FIG. 8). .

In step S408, it is detected whether or not the pedal 171 (see FIG. 2) has been moved. If the pedal 171 has been moved, the flow advances to step S409 to execute a pedal processing routine (see FIG. 9). In step S410, processing related to other buttons and switches arranged on the panel shown in FIG. 2, processing related to display of LEDs and LCDs, and the like are executed, and the process returns to step S402 again.

FIG. 5 is a flowchart of the WAH edit routine executed in step 403 of FIG. First, in step S501, it is detected whether or not the parameter value has been changed by the edit operation. If the change operation has been performed, the process proceeds to step S502; otherwise, the process proceeds to step S508.

In step S502, the changed value is fetched as a parameter value into the relevant portion of the RAM. Then, in step S503, a coefficient to be given to the DSP 14 is generated based on the changed parameter value.
Proceeding to 504, the generated coefficients are sent to the DSP. Thereby, the parameter value is reflected on the WAH effect in the DSP 14. A change in the Effect parameter (ON / OFF of the WAH effect) is similarly reflected on the DSP.

In step S505, step S501
The parameter value changed this time in S504 is Effec
It is determined whether or not the parameter value of the t parameter is “on” or “off”. When the parameter value of the “Effect” parameter is changed (on or off), the process proceeds to step S507. In step S506, the parameter value changed this time in steps S501 to S504 is F
Parameter value of X Select parameter (Peda
1 WAH or Auto WAH), and when the parameter value of the FX Select parameter (Pedal WAH or Auto WAH) is changed, the process similarly proceeds to step S507. In step S507, an automatic assignment setting routine described later (see FIG. 6) is executed.

At step S508, the EXIT button 1
It is determined whether or not button 64 has been pressed.
If 4 has not been pressed, the process returns to step S501 and EX
If the IT button 164 has been pressed, this routine ends. FIG. 6 is a flowchart of an automatic assignment setting routine executed in step S507 of the WAH editing routine shown in FIG. In this routine, WAH
When the Effect parameter of the effect is turned on and the type of WAH is Pedal WAH (Pedal WAH is set in FX Select), Pedal (filter frequency) is a parameter controlled by the pedal. Is set.

In step S601, it is determined whether or not the Effect parameter is on. In step S602, FX Select is set to Pedal WA.
H is determined. If Effect is on and the type of WAH (FX Select) is Pedal WAH, the process advances to step S603 to determine whether Effect is off or FX S
If select is AutoWAH, step S
Proceed to 606.

In step S603, the parameter values of the pedal parameters that have been valid up to that time, that is, Ta
get and on / off (see FIG. 3) are Ta
rget-buffer and on / off-buff
er and, in step S604, b_flag indicating that a valid value has been saved in the buffer is set to '1'.

Next, in step S605, Targ
The Pedal parameter of the WAH effect is set in et, and on is set in on / off. In this way, the pedal parameters are automatically set. On the other hand, in step S606, it is determined whether a valid pedal parameter is saved in the buffer (whether b_flag is '1').
Is determined and when b_flag is “1”, the process proceeds to step S607, and the pedal parameters saved in the buffer are restored. That is, Target-buf
fer on Target, on / off-buffer
Is stored in on / off, and in step S608, “0” indicating that a valid value is not stored in the buffer is stored in b_flag. On the other hand, step S
If it is determined in 606 that b_flag is not “1” (a valid value is not stored in the buffer), the process directly exits the automatic assignment setting routine.

In step S609, the parameter indicated by Target (in step S605, W
The parameter value of the Pedal parameter of the AH effect is set to a value corresponding to the current pedal position amount (for example, a range of 0 to 100 corresponding to the pedal position in Pedal of the WAH parameters shown in FIG. 2). Is stored in step S610, and a coefficient to be set in the DSP is generated based on the parameter value set in step S610. In step S611, the coefficient is transferred to the DSP and the WAH effect is added to the musical tone. Will be reflected.

FIG. 7 is a flowchart of the CHORUS edit routine executed in step S405 of the main routine shown in FIG. First, in step S701, it is detected whether or not the parameter value has been changed by the edit operation. If the change operation has been performed, the process proceeds to step S702; otherwise, the process proceeds to step S705.
Move on to

In step S702, the changed parameter value is fetched into the relevant portion of the RAM. Then, in step S703, D is determined based on the changed parameter value.
A coefficient to be given to SP141 is generated, and step S704 is performed.
And the generated coefficient is represented by C
Reflected on the HORUS effect. Step S705
Then, it is determined whether or not the EXIT button 164 has been pressed. If the EXIT button 164 has not been pressed, the process returns to step S701. If the EXIT button 164 has been pressed, this routine ends.

FIG. 8 is a flowchart of a pedal assignment process routine executed in step S407 of the main routine shown in FIG. First, in step S801, it is detected whether or not the parameter value has been changed by the edit processing. If the change operation has been performed, the process proceeds to step S802; otherwise, the process proceeds to step S806.

In step S802, the changed value is stored in the parameter (Target) currently being changed.
t or on / off).
In step S803, the pedal parameter on / off
Is on or not. If on, the process proceeds to step S804, and if off, the process proceeds to step S806.

In step S804, according to the pedal value corresponding to the current pedal position, the pedal parameter Tar
A parameter value of a parameter indicated by “get” (for example, a Pedal parameter that defines a frequency of a filter of the WAH effect) is set. In step S805, a coefficient to be given to the DSP 14 is generated based on the set parameter value. Coefficient is
For example, the Ped of the WAH effect in the DSP 14
It is reflected on the al parameter (filter frequency).

At step S807, the EXIT button 1
It is determined whether or not the button 64 has been pressed. If the EXIT button has not been pressed, the process returns to step S801. If the EXIT button 164 has been pressed, this routine ends. FIG. 9 shows step S40 of the main routine shown in FIG.
9 is a flowchart of a pedal processing routine executed in Step 9. In this routine, the pedal position changed by the pedal operation is reflected on the parameter specified by the pedal parameter Target.

First, in step S901, it is determined whether the pedal parameter on / off is on or off. If the pedal parameter on / off is on, the process proceeds to step S902, and if the pedal parameter is off, nothing is performed. Through. In step S902, the parameter indicated by the pedal parameter Target (eg, WAH
The parameter value of the pedal parameter (Pedal parameter of the effect) is set according to the pedal value representing the current pedal position, and the process proceeds to step S903 to generate a coefficient to be set in the DSP 14 based on the set parameter value. The coefficient is transferred to the DSP 14, and D
This is reflected in the effect in SP14.

As described above for the WAH effect, in the present invention, depending on the type of effect, the parameter controlled by the pedal is automatically set only by designating that the effect is applied to the musical sound.

[0044]

As described above, according to the present invention,
By simply selecting the desired effect (effect) by the user, the parameter controlled by the parameter value changing operator is automatically assigned, so that an effect providing apparatus with a simple setting operation is realized.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a hardware configuration of an embodiment of an effect providing apparatus according to the present invention.

FIG. 2 is a diagram showing a panel on which a display unit, an operation unit, and a pedal shown in FIG. 1 are arranged.

FIG. 3 is a diagram showing a storage area for setting parameter values and the like edited by a user in a RAM shown in FIG. 1;

FIG. 4 is a flowchart of a main routine.

FIG. 5 is a flowchart of a WAH edit routine.

FIG. 6 is a flowchart of an automatic assignment setting routine.

FIG. 7 is a flowchart of a CHORUS edit routine.

FIG. 8 is a flowchart of a pedal assignment processing routine.

FIG. 9 is a flowchart of a pedal processing routine.

[Explanation of symbols]

 Reference Signs List 10 effect imparting device 11 CPU 12 ROM 13 RAM 14 DSP 15 display means 16 operation means 17 pedal 20 bus 151 LED 152 LCD 161 effect button 161_1 wow button 161_2 chorus button 162 pedal assign button 163 parameter button 164 EXIT dial 165 value switching button 165 Switch 171 pedal

Claims (3)

[Claims] 1. An effect applying device for applying one or more types of effects selected from a plurality of types of effects whose characteristics are determined by parameters to an input musical tone, wherein the desired tone is selected from the plurality of types of effects. An effect selecting operator for selecting an effect, a parameter value changing operator responsible for changing a parameter value, and a predetermined effect is selected from the plurality of effects by the effect selecting operator. In the case, the parameter value changed according to the operation of the parameter value changing operator,
An effect imparting device comprising: a control unit for reflecting the characteristic of the predetermined effect in a predetermined parameter among the parameters defining the characteristic of the predetermined effect. 2. An effect applying device for applying one or more types of effects selected from a plurality of types of effects whose characteristics are determined by parameters to an input musical tone, wherein the desired tone is selected from the plurality of types of effects. An effect selection operator for selecting an effect, a parameter value change operator responsible for changing a parameter value, and identification information indicating a parameter to which a parameter value changed by the parameter value change operator is reflected. A memory to be stored and, when a predetermined effect is selected from the plurality of types of effects by the effect selection operator, indicates a predetermined parameter among parameters defining characteristics of the predetermined effect. Storage means for storing identification information in the memory; and a parameter value changed in accordance with an operation of the parameter value changing operation element, the parameter value being changed to a predetermined value. Of the effect imparting device, characterized in that a control means for reflecting the parameters indicated by the identification information stored in the memory. 3. The effect imparting device according to claim 1, wherein the parameter value changing operation element is a pedal operated by a foot.