JP2894204B2 - Electronic musical sound control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tone signal forming technique, and more particularly to a tone signal forming technique capable of controlling characteristics of a generated tone signal based on human perception.

[0002]

2. Description of the Related Art Natural musical instruments generate various musical tones according to their types, playing methods, individual differences, and the like.

[0003] Electronic musical instruments can also generate various tone signals by varying input signals, circuit electrical and circuit parameters, depending on the type of tone signal synthesizer. Further, by editing (editing) electrical and circuit parameters, not only musical tones of natural musical instruments but also musical tone signals of a wide range of timbres can be generated.

[0004] The envelope of a musical tone of an attenuation system such as a piano is usually decomposed into an attack (A), a decay (D), a sustain (S), and a release (R), and the shape is analyzed by its level and rate of change (rate). , Can be specified.

[0005] In a synthesizer or the like, it is common practice to directly control the envelope shape of the ADSR and the signal waveform itself. In order to obtain a desired tone, the synthesizer player had to directly operate the electrical and circuit parameters of these tone generator circuits.

Therefore, the generated musical sound is slightly "sharp".
When you want to be "soft", you need to know where to operate and how to get the tone you want.

[0007] Some electric tones have a slider control called "Brilliance", but the "Brilliance" control only changes the peak level of the FM sound source.

[0008] The characteristics of musical sounds are "warmth"
It can be more easily expressed by “sharpness”, “brightness”, and the like. On the other hand, the characteristics of the tone signal generated from the tone generator circuit are envelope, frequency characteristics, vibrato,
It can be more easily expressed by electrical and circuit characteristics such as localization.

[0009] It is not easy to associate the sensory characteristics of these musical tones with the electrical and circuit characteristics of the tone generator circuit, and it is not easy for an inexperienced person to obtain a desired musical tone.

In recent years, control has been realized by fuzzy logic in various technical fields. In electronic musical instruments, for example, Japanese Patent Application Laid-Open No. 2-146094 discloses a technique for controlling an envelope of a tone signal generated by fuzzy calculation based on an initial touch indicating a key-pressing operation speed or a key-on time indicating a time after a key is pressed. Has been proposed.

[0011]

As described above,
The characteristics of musical tones can be easily expressed by sensory expressions such as "sharp", "bright", and "warm", but the characteristics of musical tones generated from electronic musical instruments are controlled by electrical and circuit characteristics. You.

It has not been easy to associate these sensory expressions with electrical and circuit characteristics. SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic musical tone control device capable of more easily associating a sensuous expression of the characteristics of musical sounds with electrical and circuit characteristics.

[0013] In addition, in an actual performance, a musical tone according to a player's intention can be generated in real time by synthesizing a sensory expression input in advance and an electrical and circuit expression corresponding to performance information input in real time. The purpose is to do so.

[0014]

An electronic musical tone control device according to the present invention comprises: an input operator for inputting a degree of a sensory expression representing a characteristic of a musical tone and generating an input parameter corresponding to the input; A setting operator for setting and inputting a concept name corresponding to the sensory expression, a display means for displaying the concept name set and input by the setting operator, and a tone parameter for controlling a signal waveform; A tone signal forming circuit for forming a tone signal based on the tone parameter; a definition unit for storing definition information for determining a correspondence relationship between the input parameter and the tone parameter; and a value of the input parameter according to the definition information. Musical tone parameter generating means for generating the musical tone parameter according to the above.

In the electronic musical tone control device according to the present invention, the musical tone signal forming circuit receives a plurality of types of musical tone parameters for controlling a signal waveform and forms a musical tone signal based on the plurality of types of musical tone parameters. The definition unit stores, in the plurality of types of tone parameters, definition information that defines a type of tone parameter that changes in accordance with the value of the input parameter and a tendency of the change, and further stores a value of the input parameter in the value of the input parameter. A definition setting operator for setting and inputting the type of the tone parameter that changes in response to the change and the tendency of the change to the definition unit;
According to the definition information, a plurality of types of tone parameters are generated according to the values of the input parameters.

Further, in the electronic musical tone control device according to the present invention, the input operation element generates a plurality of input parameters, and further includes a performance operation element for generating performance information in response to a performance operation; Having preparation means for generating preparation information by performing arithmetic processing using the input parameters,
The tone parameter generating means, when the performance information is generated,
The musical tone parameters are generated by performing arithmetic operation processing using the performance information and the preparation information.

[0017]

[0018]

According to the present invention, an input parameter is set by an input operator for inputting a degree of a sensory expression representing a characteristic of a musical tone, and according to a value of the input parameter according to definition information for specifying a relationship between the input parameter and the musical tone parameter. By providing a tone parameter generation unit that generates tone parameters for controlling the formation of a tone, a tone having desired properties can be generated more easily.

Also, the arithmetic processing necessary for generating musical tone parameters in accordance with a plurality of input parameters and performance information is not performed after the performance information is supplied, but rather by a plurality of input operators prior to the performance of the musical tone. And prepares preparation information according to the plurality of input parameters, and generates musical tone parameters according to the performance information sequentially input from the performance operator during the performance and the preparation information. As a result, arithmetic processing for generating tone parameters that must be performed during performance is reduced, and a tone corresponding to a plurality of input parameters and performance information can be generated in real time in response to input of performance information.

[0020]

FIG. 1 shows a basic configuration of an electronic musical tone control apparatus according to an embodiment of the present invention. Tone edit operator 1
These are operators for inputting sensory expressions such as "sharpness", "warmth", and "brightness". The input signal input from the tone edit operator is an input for fuzzy calculation.

The performance input means 2 is an input means for performing a normal performance operation on a keyboard or the like, and provides a tone control signal accompanying a performance operation such as key-on, key-off, key code, and initial touch (velocity).

The fuzzy calculation means 5 supplies the result of the fuzzy calculation to the tone generator 6 based on the fuzzy input input from the timbre edit operator 1. The tone generator 6 generates a tone signal based on the tone operation signal given from the fuzzy arithmetic means 5 together with the tone operation signal given from the tone input means 2.

The fuzzy calculation means 5 can also perform a fuzzy calculation by taking in a control signal indicating a performance operation given from the performance input means. Sound source circuit 6
Can be realized by various sound source circuits such as an AWM sound source, an FM sound source, and a physical model sound source which are waveform memory type sound sources. The control signal supplied to the tone generator 6 can be adapted to the type of tone generator.

The timbre edit operator 1 is a control device that is easy for the player to handle because he or she inputs a sensory expression that is easily understood by the player. Fuzzy calculation means 5
Performs various calculations for linking the sensory expression input from the performance edit operator 1 to various control parameters of the tone generator circuit 6.

Hereinafter, the present invention will be described with reference to more specific examples. FIG. 2 shows the configuration of the electronic musical tone control device of the present invention. FIG. 2A is a block diagram showing the configuration of the electronic musical tone control device. The bus line 11 is a transmission path for exchanging signals. A keyboard 12 for performing a normal performance operation is connected to the bus line 11.

The keyboard 12 is provided with a large number of keys. When a key is pressed and released, a key code K representing a pitch is generated.
Control signals such as a CD, a key-on KON indicating generation of a musical sound, a key-off KOFF indicating an end of a musical sound, and an initial touch (velocity) IT indicating a speed of a performance operation are generated.

The panel switch group 13 includes a tone color selection switch, a mode selection switch, and the like, and sets a basic operation mode of the electronic musical tone control device. The panel display 14 is a display on a panel and performs various displays.

The panel slider group 15 includes a plurality of sliders for editing a sensory expression representing the characteristics of a musical tone. When the panel slider 15 is operated, the input rule name of the panel slider 15 and the set level are displayed on the panel display 14.

By displaying the name of the input rule, the player can perform editing while recognizing what kind of sensual expression the panel slider 15 to be operated is. The input rule name is preferably a concept name that accurately represents a sensory expression.

The central processing unit (CPU) 16
In addition to generating a normal tone control signal on the basis of a performance operation input input from the CPU, a predetermined fuzzy operation is performed on the basis of a fuzzy operation input input from the panel slider 15.

The read-only memory (ROM) 17 stores C
A program to be executed by the PU 16 is stored. The random access memory (RAM) 18 includes a register for various parameters calculated by the CPU 16 and the like.

The fuzzy processor 19 is a processor for performing a real-time fuzzy operation based on a performance operation signal input from the keyboard 12. For example,
Based on the input signal input from the panel slider 15, C
A fuzzy operation is further performed on the initial touch signal input from the keyboard 12 on the basis of the tone processed by the PU 16.

Since the performance operation signals are sequentially generated according to the performance operation on the keyboard 12, the fuzzy processor 19
It is necessary to perform a fuzzy operation in real time with a performance operation signal as an input.

The tone control signal generated by the CPU 16 and the tone control signal further processed by the fuzzy processor 19 are sent to the tone generator 20 to control the tone signal. The output signal of the sound source circuit 20 is sent to a sound system and is generated as an audible musical sound.

In this embodiment, by selecting the tone color edit mode, various sensory expressions can be input from the panel slider group 15 and the tone color can be variously edited.

FIG. 2B shows a configuration example of the panel slider group 15 and the panel display 14. Panel slider group 15
Is constituted by, for example, six sliders SR1 to SR6.

Each slider SR is set so as to be slidable along a groove G formed in the panel, and inputs a predetermined input rule assigned to each slider. As the input rule, a sensory expression matching the human hearing is selected.

A panel display 14 is disposed above the panel slider group 15, and the panel display 14 includes a window region W corresponding to each slider SR. Each window area W is
As shown in the figure, an input rule name display portion and a level display portion of the input rule are included.

The input rules preferably combine two input rules having opposite meanings so that one slider can perform two types of input. For example, sharpness / softness is input by the first slider SR1. The CPU 16 performs a fuzzy operation on the input rule input based on the set timbre, and generates a predetermined output rule.

FIG. 3 is a block diagram schematically showing a fuzzy operation performed by CPU 16. The input rule IR is
Sharp-soft, warm-cold, clear-indistinct, near-distant, bright-dark, thin-fat, sweet-spicy, cloudy-transparent, glittering-moist etc. It is a large number of sensory expressions combined.
Each set of input rules generates two input signals.

The output rule OR is a control signal for controlling the tone generator 20. For example, EGR for controlling the rising speed of the envelope, cutoff frequency FCR of the filter, degree of resonance FQR of the filter, speed VSR of the vibrato, Vibrato depth VDR, reverberation R
VR, stereo in-phase / out-phase level SIR, etc. are selected.

The combination of the input rule IR and the output rule OR is arbitrary, and is associated by the control rule CR. The control rule CR is set in a standard form in advance, but the player can freely edit the control rule CR. 1
Selecting one input rule IR and changing its level changes the output rules associated by the control rule. That is, when the level of one input rule is changed, a tone parameter that matches the sensory expression of all input rules is newly generated. Here, each output rule is also controlled by a plurality of input rules.

Therefore, the relationship between the input rule and the output rule becomes complicated. According to a plurality of input rules, a fuzzy operation is performed again to set each output rule.

FIG. 4 shows an example of the input membership function of the fuzzy operation. As shown in FIG. 3, the input rule IR
Is a set of two opposite concepts. When the slider SR shown in FIG. 2B is operated, two inputs of the opposite concept occur simultaneously.

FIG. 4A shows two input membership functions SR and -SR which linearly change in the opposite direction based on the slider operation. FIG. 4B shows two input membership functions SR,-generated based on a slider operation.
The case where the SR does not change linearly but changes trapezoidally is shown.

FIG. 4C shows a case where the change is not linear but curved. The shape of the input membership function is not limited to these examples, and may be any shape.
One slider input generates two opposing input membership functions, but these two input membership functions can be shaped independently of each other.

FIG. 5 shows the output membership function. Although the shape of the output membership function can be basically selected arbitrarily, in the present embodiment, a standard output membership function OM0 and four output membership functions OM1 to OM4 for editing are used. Use a combination.

Associated with each input rule is one of the edit output membership functions OM1 to OM4. The standard output membership function OM0 is an output membership function used when no editing input is made, and decreases according to the degree of editing.

If the scale of the horizontal axis is varied for each output rule, fine control according to desired characteristics can be performed even if the same function shape is used. The number of editing output membership functions is not limited to four.

As described above, the relationship between the input rule and the output rule can be set arbitrarily. Here, a case where one output rule, for example, the rising EGR of the envelope is controlled by a plurality of input rules will be described.

As shown in FIG. 6A, output membership functions EGR1 to EGR4 for EGR are associated based on various input rules. When there are a plurality of levels selected based on the setting of each input rule for one output rule, for example, EGR2,
The larger one is selected by the max operation.

In the figure, the case where all four envelope output membership functions EGR1 to EGR4 are selected is shown, but it is not always necessary to select all output membership functions. Each output membership function EGR
1 to EGR4 are functions representing the “ness” of the envelope.

From the levels of the output membership functions that have been set, the maximum level is taken, and the difference S from the maximum value of the output membership function is taken. The level S is set to a level at which the standard output membership function EGR0 is cut.

In this way, as shown in FIG. 6B, after setting the cut levels of all output membership functions, a max operation is performed to form a truncated shape. As shown in FIG. 6 (C), normal calculation of the center of gravity is performed on the truncated shape, and the center of gravity is output as a value of the set output rule.

By using such an output membership function, the standard output membership function EGR0 is used as it is when no editing is performed, and the correction for the editing is performed when any editing is performed. As it is done, the settings for the standard are reduced. When very intense edits are made, the standard settings almost disappear.

When a plurality of output rules are controlled based on input of one kind of sensory expression, an input membership function can be selected for each output rule. Also,
Although a case has been described where a plurality of editing functions and one standard function are used as the output membership function, an arbitrary output membership function may be used.

FIG. 7 is a flowchart of a main routine for performing the above control. When the process starts, in step S1, initialization such as initialization of various registers is performed. With this initial setting,
The electronic musical tone control device becomes operable.

Next, the flow proceeds to step S2, where key processing of the keyboard is performed. When a performance is performed by operating a key on the keyboard, a corresponding tone signal is generated. In the next step S3, an operation mode is selected. That is, when the operation mode selection switch is operated,
The operation mode of the electronic musical tone control device is selected based on the selection of the operation mode selection switch.

Next, in step S4, it is determined which mode the operation mode is. If the operation mode is "0", the process proceeds to step S5, and the timbre is selected. If the operation mode is "1", the process proceeds to step S6, where rule editing is performed. If the operation mode is "2", the process proceeds to step S7, where the timbre is edited. The operation mode can be set to any other mode.

After these operations, the process returns to step S2,
A similar process is repeated. For example, when a performance operation using the keyboard is being performed, the key processing S2 is repeatedly performed, and the other steps are skipped. If tone editing is being performed, tone editing step S7
Are repeated, and the other steps are skipped. Hereinafter, the tone color selecting step S5, the rule editing step S6, and the tone color editing step S7 will be described in more detail.

FIG. 8 shows a subroutine of a tone color selection step performed when a tone color selection event occurs. As shown in FIG. 8A, when the process is started, the input of the timbre number selected in step TS1 is input to the buffer register BUF.

Subsequently, in step TS2, in order to save the data in the tone color data buffer created in the previous edit, the data is stored in the tone color data buffer in an area corresponding to the tone color number TC of the tone color memory provided in the RAM 18. The edited data is transferred and the result of the previous edit is stored.

The timbre data buffer has, for example, a configuration as shown in FIG. The timbre data buffer 36 stores an area 37 for storing a timbre number TC, an area 38 for storing basic timbre data, and a weight for what ratio to add to base data based on displacement data input from a slider. Combined weight data area 39,
Based on the slider input, a timbre displacement data area 40 for storing change data of each parameter created by fuzzy operation, a rule set number area 41 for storing a set of editing rules, and a rule when the last of each input rule is edited Initial data area 4 for storing slider input data
2 inclusive.

Subsequently, in step TS3, the timbre data is read from the timbre memory based on the buffer BUF storing the selected timbre number input, and is transferred to the timbre data buffer. In step TS4, the timbre number stored in the buffer memory BUF is input to the timbre register TC. The timbre memory has a plurality of storage areas having the same configuration as the timbre data buffer.

This tone color number TC is used to store the editing result at the original address of the memory when the editing is completed and the next input is performed (step TS).
2). Next, in step TS5, the tone color of the tone generator is set based on the tone color data read from the tone color memory. With this setting, the tone generator circuit is in a state of generating a tone signal of a desired tone.

By reading out the tone color data corresponding to the tone color number from the tone color memory, a tone signal can be generated by adding a sensuous expression according to the characteristics of each tone color. FIG.
Indicates a rule editing subroutine. The rule set is a set of input rules, output rules, and the relationship between input rules and output rules. The player can change the rules according to the differences and tastes of individual senses.

When the process starts, first, at step RE
1, the input rule set number is stored in the register RS
N. Subsequently, in step RE2, the rule set of the register RSN is read from the memory and transferred to the rule buffer.

Next, in step RE3, the input rule number and name to be edited are newly set or
Or select it for editing. Here, the rule name of each rule number is stored in the RAM in a format as shown in FIG. 12B, and this rule name is set by “new setting of rule name” in step RE3.
It is rewritable. That is, the user can arbitrarily define the input rule name, and can define a concept name corresponding to the sensory expression. The defined input rule name is displayed on the display unit 14 of the panel slider 15 in FIG. 2 to which the corresponding rule number is assigned, together with the level being input by the slider.

As described above, as the input rule, two opposite concepts are grouped. For example, Rule 1 is sharp, Rule -1 is soft, Rule 2
Is warm, Rule-2 is cold, Rule3 is clear, Rule-3 is unclear, Rule4 is short, Rule-4 is long, Rule5 is bright, and Rule-5 is dark , Rule 6 is thin, Rule-6 is thick, Rule 7 is muddy, Rule-7 is transparent, and so on.

In addition, various rules may be included. Since there are six editing sliders, it is possible to edit up to six inputs at the same time, but when editing more input rules,
What is necessary is just to divide it into a plurality of sets.

At step RE4, a relationship from the input rule to the output rule is set or edited. That is, the relationship between which output rule is controlled by each input rule is set or edited. Also, based on this setting, ItoO representing the relationship from each input to the output
Create a table.

For example, EG indicating that the attack rate is high as an output rule with respect to the sharpness of the input rule
R4, F indicating that the filter cutoff frequency is high
CR4, FQR4 indicating that the Q of the filter is large, VSR4 indicating that the vibrato speed is fast, and VDR1 indicating that the vibrato is shallow are associated. In each of these input / output relations, the weight of the input rule can be set independently.

For softness, which is the opposite concept of sharpness,
For example, EGR indicating that the attack rate is slightly lower
2, FCR1 indicating that the cutoff frequency is low, VSR2 indicating that the vibrato speed is slightly slow, and VDR4 indicating that the vibrato depth is deep.

Even though the input rule 1 and the input rule -1 are opposite concepts, the output rules to be selected need not be the same. In the above example, the Q of the filter has been selected for sharpness but not for softness.

In addition, with respect to the clarity of the input rule 3, as an output rule, an FC having a high cutoff frequency of the filter is used.
R4, EGR with large attack rate of envelope
4. SIR4 having a large negative phase component can be set.

When the sharpness of the input rule 1 and the clarity of the input rule 3 are set independently, the FCR 4 and the EGR 4 are set to overlap in the output rule. In such a case, for the same output rule, the highest level among the set levels is adopted.

As described above, the performer sets the relationship between the input rule and the output rule by trial and error,
It is possible to generate a musical sound parameter that matches a sensory expression. When one input rule is edited, a plurality of output rules change, but in each output rule,
Because of the influence of other input rules, it is necessary to store the relationship from output rules to input rules for overall control.

In step RE5, an OtoI table having an inverse relationship is created based on the set ItoO table. In step RE6, the rule set in the rule buffer set in this way is stored as the RSN-th rule.

FIG. 10 shows the configuration of the rule buffer.
The rule buffer 43 includes an area 44 for storing a rule set number RSN, an area 45 for storing the number of input rules 2n,
Area 46 for storing the number m of output rules, assign data,
That is, an area 47 for storing which input rule each slider corresponds to, and Ito indicating a relationship from each input to an output.
An area 48 for storing an O table, and an Ot for storing what input rule is associated with each output rule
An area 49 for storing the oI table is included.

The assignment data area 47 has a configuration as shown in FIG. That is, it includes an area SR1 for storing the input rule number of the slider 1, an area SR2 for storing the input rule number of the slider 2,..., An area SR6 for storing the input rule number of the slider 6.

The ItoO table area 48 corresponds to FIG.
It has a configuration as shown in FIG. That is, the ItoO table area 48 includes, as shown in FIG. 12A, areas 50a, 50b,... 50x and an empty area 51 for separately storing one related output rule O for each input rule I. including.

Area 50a for storing _one input / output relationship, for example, IO ₁ has a structure as shown in FIG. 12B, for example. That is, the area 50a includes an area 56 for storing an input rule name, an area 57 for storing data specifying an input curve used for an input membership function, an area 58 for storing the number of outputs n _i, and an output rule number and its weight. Areas 59a, 5 for storing related outputs
9b,...

The OtoI table area 49 corresponds to FIG.
It has a configuration as shown in FIG. That is, as shown in FIG. 13A, the OtoI table area 49 includes areas 53a, 53b,... 53y for storing the relation of each input rule related to each output rule, and a free area 54.

Each area 53 has a structure as shown in FIG. 13B, for example. That is, an area 61 for storing the output rule name and an area 6 for storing the number of related input rules.
2. An area 63a for storing each related input rule number,
63b,...

FIG. 14 shows an event routine by operating the slider i when tone color editing is performed based on a preset or edited rule set.
When the i-th slider is operated, the input value is stored in the buffer buf in step TE1. continue,
In step TE2, the input rule of the i-th slider SRi is copied to the register SR.

In step TE3, the buffer bu
The data of f is converted by the input curve of the SR, -SRth input rule, and a numerical value representing the degree of each input is stored in the registers ID _SR and ID _-SR .

In step TE4, fuzzy operation of SR is performed, and in step TE5, fuzzy operation of -SR is performed. Subsequently, in step TE6, it is determined whether or not a real-time fuzzy calculation control rule exists. When a real-time control rule exists, Y
The process moves to step TE7 according to the arrow of ES, sets the function of the fuzzy operation result of the input rule that is not controlled in real time in the register FR2, and sets the function of the input rule to be controlled in real time in the register FR1 in the next step TE8. When there is no real-time control rule, steps TE7 and TE8 are bypassed.

Referring to FIG. 15, the subroutines SR and -SR performed in steps TE4 and TE5 will be described. First, in step TE11, "1" is stored in the register k and initialization is performed. Then step TE
In 12, of the control rule of the IO _SR indicating the relationship to the output from the SR-th input, newly performed based on operation of output rules shown in rule leading to k-th output data ID ₁ ~ID _6.

In step TE13, the operation result obtained in this way is registered as displacement data. In step TE14, the displacement data is weighted and sent to the register of the corresponding parameter of the tone generator circuit.

Next, in step TE15, it is determined whether or not the integer k has reached the number n _{SR of} output rules. When n _SR has not been reached, step T follows the arrow of NO.
Proceed to E16 to increment the integer k. afterwards,
It returns to step TE12. When the integer k has reached n _SR , the processing is terminated.

Referring to FIG. 16, a description will be given of the fuzzy operation performed by setting the levels in steps TE7 and TE8 when the real-time control rule exists in step TE6. This fuzzy operation is performed by the fuzzy processor 19 shown in FIG.

In FIG. 16A, registers 70 and 7
1, 75 and 79 are bus lines 11 shown in FIG.
Connected to. The function FR2 of the result of the fuzzy operation of the input rule that is not controlled in real time described in step TE7 of FIG. 14 is stored in the function register 75. Also,
The function FR1 of the input rule for real-time control described in step TE8 is stored in the function register 72.

For example, when performing a performance operation on the keyboard, a numerical value N set according to the initial touch IT
R1 is set in the numerical value register 70. The min function generating circuit 71 calculates the function FR1 stored in the function register 72.
And the min operation of the numerical value NR1 stored in the numerical value register 70 is performed. The function of the min function generating circuit 71 is schematically shown in FIG. That is, the min calculation of the function FR1 and the constant numerical value NR1 is performed, and a function shape obtained by cutting the function FR1 by the numerical value NR1 is obtained.

On the other hand, the function register 75 stores another function FR2 already calculated. The max operation circuit 77 generates the signal generated by the min function generation circuit 71 in FIG.
A max operation is performed on the function shape as shown in FIG. 3B and another already calculated function shape generated by the function register 75. This circuit function is schematically shown in FIG.

The function shape on the left side of the left side is the function shape generated by the min function generating circuit 71, and the function shape on the right side of the left side is the function shape generated by the function register 75. By performing the max operation of these function shapes, the function shapes shown on the right side are obtained.

The center-of-gravity calculating circuit 78 calculates the center of gravity of the function shape obtained by the max operation, sends the position of the center of gravity to the output register 79, and sets it as the value NR2 of the output rule. In this manner, real-time fuzzy calculation based on performance operation can be performed together with fuzzy calculation in tone color editing.

FIG. 17 shows the key processing step S2 shown in FIG.
3 shows a note-on event processing routine in the first embodiment. When a key is pressed on the keyboard, in step N1,
The note number representing the pitch and the velocity representing the initial touch are stored in registers NCD and VEL, respectively.

Subsequently, at step N2, the note number and velocity are sent to the tone generator circuit. In this way, the tone generator circuit is prepared to generate a musical tone signal corresponding to the pitch and touch of the performance operation.

At step N3, it is determined whether or not the real-time control is instructed. If the real-time control is to be performed, the process proceeds to step N4 according to the YES arrow, and the standard value N stored in the register of the input rule for performing the real-time control is set.
An offset value corresponding to VEL is assigned to R0.

The data thus obtained is stored in the register NR
Set to 1. Since the fuzzy calculation is ready by setting NR1, the already described real-time control fuzzy calculation is performed.

The fuzzy operation includes the center of gravity operation, and its processing requires a certain amount of time. Therefore, it is determined in step N6 whether the operation has been completed. If the calculation has not been completed, step N6 is repeated according to the NO arrow.

When the calculation is completed, the flow advances to step N7 according to the arrow of YES to fetch the data of the register NR2 obtained by the fuzzy calculation, and set the sound source parameters corresponding to the output rules.

When it is determined in step N3 that there is no real-time control, steps N4, N5, N6 and N7 are bypassed according to the arrow of NO.

Thereafter, in step N8, a note-on signal is sent to the tone generator circuit to form a tone signal.
The output rule for real-time control based on the velocity can be arbitrarily selected, for example, the attack rate of the envelope, the cutoff frequency of the filter, the Q of the filter, and the vibrato.

In this embodiment, the case where the fuzzy arithmetic means 5 shown in FIG. 1 performs the fuzzy arithmetic and generates the parameters to be supplied to the tone generator circuit 6 has been described. However, the present invention is not limited to the fuzzy arithmetic but may be any other artificial intelligence (AI). The parameters may be generated by a technique.

The present invention has been described in connection with the preferred embodiments.
The present invention is not limited to these. For example,
It will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.

[0107]

As described above, according to the present invention,
A tone having desired properties can be easily obtained by generating a tone parameter by inputting a sensory expression representing a property of a tone.

Further, a musical tone corresponding to a plurality of input parameters and performance information can be generated in real time in response to the input of the performance information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of an electronic musical tone control device according to an embodiment of the present invention.

FIG. 2 is a block diagram and a schematic plan view showing a hardware configuration of the electronic musical tone control device according to the embodiment of the present invention.

FIG. 3 is a conceptual diagram schematically showing a fuzzy operation performed by the electronic musical tone control device.

FIG. 4 is a schematic diagram illustrating a shape example of an input membership function.

FIG. 5 is a schematic diagram showing a shape example of an output membership function.

FIG. 6 is a conceptual diagram for explaining determination of an output rule using an output membership function.

FIG. 7 is a flowchart of a main routine.

FIG. 8 is a conceptual diagram showing a flowchart for explaining timbre selection and a configuration of a timbre data buffer.

FIG. 9 is a flowchart of a rule edit routine.

FIG. 10 is a schematic diagram showing a configuration of a rule buffer.

FIG. 11 is a conceptual diagram showing a configuration of an assignment data storage area.

FIG. 12 is a conceptual diagram showing a configuration of an ItoO table.

FIG. 13 is a conceptual diagram showing a configuration of an OtoI table.

FIG. 14 is a flowchart of a slider operation event routine in an edit routine.

FIG. 15 is a flowchart of an SR, -SR subroutine used in a slider operation event routine.

FIG. 16 is a block diagram showing a configuration of a fuzzy processor and a conceptual diagram for explaining its operation.

FIG. 17 is a flowchart of a note-on event.

[Explanation of symbols]

1 tone edit operator 2 performance input means 5
Fuzzy calculation means, 6 sound source circuit, 11 bus line, 12 keyboard, 13 panel switch, 14
Panel display, 15 Panel slider, 16 CP
U, 17 ROM, 18 RAM, 19 fuzzy processor, 20 sound source circuit, IR input rule,
CR control rule, OR output rule

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10H 1/00-7/12

Claims (8)

(57) [Claims] 1. An input operator for inputting a degree of a sensory expression representing a characteristic of a musical tone, generating an input parameter corresponding to the input, and setting and inputting a concept name corresponding to the sensory expression. Setting operator, display means for displaying the concept name set and input by the setting operator, and a tone parameter for controlling a signal waveform for forming a tone signal based on the tone parameter. A tone signal forming circuit; a definition unit for storing definition information for determining a correspondence relationship between the input parameter and the tone parameter; a tone parameter generating means for generating the tone parameter according to the value of the input parameter in accordance with the definition information An electronic musical tone control device having: 2. The tone signal forming circuit inputs a plurality of types of tone parameters for controlling a signal waveform, and forms a tone signal based on the plurality of types of tone parameters. And storing definition information defining a type of a tone parameter that changes according to the value of the input parameter and a tendency of the change in the type of tone parameter. A definition setting operator for setting and inputting the tendency of the change to the definition unit, wherein the musical tone parameter generation means, according to the definition information,
2. The electronic musical tone control device according to claim 1, wherein a plurality of types of musical tone parameters are generated according to the values of the input parameters. 3. The input operator generates a plurality of input parameters, further comprises a performance operator for generating performance information in accordance with a performance operation, and performing an arithmetic process using the plurality of input parameters. And preparation means for generating preparation information by means of: wherein said tone parameter generation means, when said performance information is generated,
3. The electronic musical tone control device according to claim 1, wherein the musical tone parameters are generated by performing arithmetic processing using the performance information and the preparation information. 4. The input operator generates a plurality of input parameters corresponding to a plurality of sensory expressions, and the tone parameter generating means generates a tone parameter corresponding to a combination of the values of the plurality of input parameters. Item 2. The electronic musical tone control device according to Item 1. 5. The tone parameter generating means generates a plurality of tone parameters in accordance with a combination of the values of the plurality of input parameters, and the tone signal forming circuit forms a tone signal based on the plurality of tone parameters. 5. The method according to claim 4, wherein when one of the input parameters changes, the tone parameter generating means generates new values for all tone parameters associated with the one parameter by the definition information. Electronic musical tone control device. 6. The electronic musical tone according to claim 1, further comprising a definition information setting operator, wherein the definition information can be arbitrarily set in the definition section in accordance with an operation of the definition information setting operator. Control device. 7. The definition information set according to the operation of the definition information setting operator is information for specifying which sensory expression of a plurality of sensory expressions is to be input as an input parameter. Item 7. An electronic musical tone control device according to Item 6. 8. The definition unit stores a plurality of sets of definition information,
Further, a timbre operator for selecting a basic timbre whose degree of sensuous expression is to be operated from the input operator, and one from the definition unit according to the timbre selected by the timbre operator. 5. The electronic musical tone control device according to claim 1, further comprising selecting means for selecting definition information, wherein said musical tone parameter generating means generates musical tone parameters based on said one definition information selected by said selecting means.