JP2561064B2 - Musical tone generator for electronic musical instruments - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone generating device for an electronic musical instrument, and more particularly, to a musical tone generating device of an electronic musical instrument, which is a musical tone generating device for generating a desired musical tone. The present invention relates to a musical tone generating device of an electronic musical instrument which gives information to the musical tone generating device.

[0002]

2. Description of the Related Art Generally, in an electronic musical instrument, a musical tone generating device is produced by musical tone generating device based on an instruction from a predetermined instructing device, based on musical tone generating element information regarding a musical tone generating musical tone element and musical performance information according to a musical score, for example. To generate a desired musical sound.

In the conventional musical tone generating apparatus for the electronic musical instrument described above, various musical tone elements, such as tone colors,
Specifically, the parameters constituting the performance sound elements are stored (set) in advance in a memory or the like for each performance sound element. Next, a desired performance sound element is selected by a selection instruction from a predetermined selection means, and the parameter of the selected performance sound element is given to the musical sound generating device as performance sound element information.

[0004]

However, in the above-mentioned one, since the selection of the performance sound elements is limited to the prestored (set) performance sound elements,
There is a problem that the degree of freedom in selection is restricted. In addition,
In order to solve this problem, the selected performance sound element,
More specifically, there is a function added with a function of changing / correcting a parameter constituting a performance sound element, but there is a problem that the operation of changing / correcting is complicated and difficult.

SUMMARY OF THE INVENTION The present invention aims to solve the above problems and increases the degree of freedom in selecting a performance sound element by a simple operation, and variously changes the performance sound element according to the interest of the performance. An object of the present invention is to provide a musical tone generating device for an electronic musical instrument capable of performing the following.

[0006]

In order to achieve the above-mentioned object, the musical tone generating apparatus for an electronic musical instrument according to the present invention is capable of (a) arbitrarily designating a musical tone element constituted by a plurality of types of parameters. Performance sound element designating means (b) With respect to at least two performance sound elements designated by the performance sound element designating means, these performance sound elements are associated with each other.
Performance sound element weight designation means capable of arbitrarily designating the relative weight of (c) each designated by the performance sound element weight designation means
Based on the relative weight of the performance sound elements, at least the above 2
Each of the corresponding parameters in the
And a state that generates the musical tone based only on <br/> sound aspects of one specified by the weighting means, and (d) the sound aspect designating means for forming a parameter of the new sound aspects by combining , Above heavy
Characterized in that it comprises a Switching Operation changeover example means arbitrarily switch between a state of generating <br/> tone based on a new sound aspects formed Ri by the saw with means.

Here, each performance sound element is as described above.
Although it is composed of a plurality of types of parameters, the performance sound element designating means may be one that arbitrarily designates a performance sound element stored in advance, and a performance is performed by designating or setting multiple types of parameters. The sound element may be arbitrarily designated. Note that, as an example of the performance sound element referred to here, for example, any one of a timbre, a pitch, and a sound volume, or an arbitrary combination thereof can be cited.

[0008]

In the present invention, the user, with arbitrarily designating a sound aspects with sound aspects designating means, for each plurality of types of more composed at least two sound aspects to the parameter, The performance sound element weight specifying means arbitrarily specifies the relative weights of the performance sound elements. Next, the performance sound element weight specification means
Based on the relative weight of each performance sound element , the weighting procedure allows correspondence among at least two performance sound elements .
The parameters of the new performance sound element are formed by synthesizing the parameters to be reproduced . Then, Switching Operation conversion
By example means, specified by the sound aspect designating means one
And the state to generate a musical tone based only on One of the sound aspect, heavy
Optionally a state in which the <br/> tone based on a new sound aspects formed Ri by the saw with means for generate switched.

Therefore, based on the arbitrary designation of the performance sound element by the performance sound element designating means and the arbitrary specification of the relative weight of at least two performance sound elements by the performance sound element weight designating means. , Playing at least two of them
Synthesize corresponding parameters in each sound element
As a result , a new musical sound can be generated. In the present invention, the performance sound element newly generated in this way is used as a basis.
And musical tones brute, since the musical sound based on sound aspects to be interpolated weighting operation may generate Switching Operation changeover Ete, can be changed variously sound aspects in accordance with the playing interest.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A specific embodiment of a musical sound generating apparatus for an electronic musical instrument according to the present invention will be described below. [First Embodiment] First, a first embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, the controller 10 composed of a variable resistor gives a voltage division value of voltage + V to the multiplexer 20 by being appropriately operated. Also, N parameter setting variable resistors 11 to 1n, which are also configured by variable resistors, are used to set parameters constituting a tone color as a performance tone element, and for example, attack time and day time. , Sustain level, release time, sound source waveform, VCF cutoff frequency, resonance, VCF modulation depth, LF
Each parameter such as the frequency of O and the waveform of LFO is set corresponding to each of the parameter setting variable resistors 11 to 1n. Variable resistor 11 for setting these parameters
.About.1n also provides the voltage division value of the voltage + V to the multiplexer 20. The multiplexer 20 sequentially outputs, in a time-divisional manner, the divided voltage value of the voltage + V given from the controller 10 and the parameter setting variable resistors 11 to 1n, in other words, the voltage value based on the address signal given from the CPU 40. To the A-D conversion circuit 30. The A-D conversion circuit 30 also converts the supplied voltage value into a digital value and supplies it to the CPU 40.

A memory 50 is provided in association with the CPU 40, and a storage area shown in FIGS. 3A and 3B described later is provided in the memory 50.
Further, the CPU 40 includes the first and second program switches 61 and 62, the calculation switch 63, and the store switch 6.
4 and preset switches 71 to 7n are connected. The first and second program switches 6
1, 62 designate the timbre at the voltage values C1, C2 set in the controller 10, and the calculation switch 63 is arranged between the two timbres designated by the first and second program switches 61, 62, That is, the difference between the voltage values C1 and C2 and the difference between the parameters x1
, X12; x21, x22; ...; Ratio to the difference between xn1 and xn2, in other words, the calculation of the rate of change. Further, the store switch 64 is operated when storing the parameters constituting the tone color in which two tone colors are interpolated in the memory 50, and the preset switches 71 to 7n are used for musical instruments such as a piano or a harpsichord. This is to preset the parameters that make up the timbre.

On the other hand, the D-A conversion circuit 80 converts the parameters constituting the timbre as digital values read from the memory 50 by the CPU 40 into analog values, and these analog values are time-divisionally demultiplexed. Give to 90. This day multiplexer 9
0 outputs in parallel the analog values of the parameters forming the timbre output from the DA conversion circuit 80 in a time-division manner based on the address signal given from the CPU 40, and gives them to the holding circuits 101 to 10n. These holding circuits 10
1 to 10n are configured by a sample hold circuit or the like that holds a parameter that constitutes a tone color as an analog value. The parameters constituting the tone color held in the holding circuits 101 to 10n are given to the synthesizer 110.

The controller 1 shown in FIG. 1 above.
0, the parameter setting variable resistors 11 to 1n, the first and second program switches 61 and 62, the calculation switch 63, the store switch 64, and the preset switches 71 to 7n are operated as shown in FIG. Part 120
It is provided in. Further, FIG. 3A and FIG.
3 shows the data stored in the memory 50 shown in FIG. 3 and also stores in the memory 50 the parameters constituting the first and second types of tones as shown in FIG. 3A. A storage area 5a is provided for storing constants used in the calculation of the interpolation 51 and 52 and FIG. 3B. In this storage area 51, for example, parameters x11 to x that configure the tone color of a piano.
n1 is stored in advance, and by operating the preset switch 71, for example, the parameters x11 to xn1 constituting the tone color of the piano are read out.
Similarly, in the storage area 52, for example, the parameters x12 to xn2 configuring the tone color of the harpsichord are stored in advance, and the parameters x12 to xn2 configuring the tone color of the harpsichord are read by operating the preset switch 72, for example. It Further, in the storage area 5a, the parameters x11 to xn1 forming the timbre and constants Δx11 to Δxn1 for calculating the parameters to be interpolated.
And are remembered.

Next, a specific operation of the first embodiment of the present invention configured as described above will be described based on flow charts in FIGS. 4 to 6. In the main routine shown in FIG. 4, for example, when playing a tone having an intermediate tone color between the piano tone color and the harpsichord tone color, the preset switch 71 is first operated. In response to this, the CPU 40 reads the parameters x11 to xn1 forming the tone color of the piano from the storage area 51 corresponding to the preset switch 71. Parameter x11 that constitutes the tone color of the read piano
.About.xn1 are converted into analog values by the D-A conversion circuit 80, and the day multiplexer 90 and the holding circuit 10 are converted.
1 to 10n to the synthesizer 110, and the synthesizer 110 plays the sounds determined by the parameters x11 to xn1 that constitute the tone color of the piano. After that, the first program switch 61 is turned on. At this time, the lowest voltage value Cl that can be set in the controller 10 is given to the CPU 40 via the multiplexer 20, and the CPU 40 responds to the operation of the first program switch 61 with the voltage value Cl set in the controller 10. Parameters x11 to configure the tone color of the piano read from the storage area 51
xn1 is temporarily stored in a storage area (not shown) of the memory 50.

Next, for example, when the preset switch 72 for playing the sound of the etchambaro is operated, the parameter x12 which constitutes the tone color of the harpsichord from the storage area 52.
~ Xn2 is read. Then, the synthesizer 110 generates sounds based on the parameters x12 to xn2 that configure the timbre of these harpsichords. After that, when the second program switch 62 is turned on, the maximum voltage value C2 that can be set in the controller 10 and the memory 5 are set.
The parameters x12 to xn2, which constitute the timbre of the harpsichord read from No. 2, are temporarily stored in a storage area (not shown) of the memory 50.

Then, when the calculation switch 63 is operated,
The CPU 40 proceeds to the calculation subroutine shown in FIG. In this calculation subroutine, as shown in FIG. 7, the difference between the voltage value C1 and the voltage value C2, and the parameter x11 configuring the tone color of the piano and the parameter x12 configuring the tone color of the harpsichord are connected by a straight line. parameter x11, a ratio of the difference between x12 Derutaekkusu11 is computation <br/> when. Similarly, the difference between the voltage value C1 and the voltage value C2,
And each parameter x21, x22; ...; xn1, xn
Ratio Δx21~Δxn1 of the difference between the two is sequentially computation. Then, a parameter x11 that constitutes the tone of the piano
~xn1 and arithmetic percentage that is Δx11~Δxn1 Togaotto people are temporarily stored in the memory 50, to the main routine returns again.

Returning to the main routine, the procedure goes to the reproduction subroutine shown in FIG. 6, and the controller 10 is operated to play an intermediate tone between the timbre of the piano and the timbre of the harpsichord, and the voltage initially set. Value C1, C2
An arbitrary voltage value Cc, which is the degree of association in the present invention, is output. After that, the CPU 40 calculates the differential pressure value Cd between the set voltage value Cc and the set voltage value C1 and interpolates the parameters sequentially as follows.

The ratio Δx11 temporarily stored in the memory 50
A differential pressure multiplied by the Cd, to computation parameters x1 interpolated by adding the parameters x11 to make up the sound of the multiplied value and piano. Similarly, the ratio ΔX21 is multiplied by the differential pressure value Cd, and the multiplied value and the parameter x21 that constitutes the tone color of the piano are added to calculate the interpolated parameter x2. Similarly, for computation of the interpolated parameters X3～xn.

In this way, in the interpolated parameters, if the parameter x11 is the attack time of the piano and the parameter x12 is the attack time of the harpsichord, the interpolated parameter x1 is the attack time of the piano and the attack time of the harpsichord. It is meant to be a value between and. If the parameter x21 is the daytime of the piano and the parameter x22 is the daytime of the harpsichord, the interpolated parameter x2 is a value between the daytime of the piano and the daytime of the harpsichord. Is meant to be.

Next, the interpolated parameters x1 to xn
Via the D-A conversion circuit 80, the day multiplexer 90, and the holding circuits 101 to 10n.
Given to. Therefore, from the synthesizer 110, the parameter x1 that constitutes the timbre of the piano and harpsichord
1 to xn1 and x12 to xn2 are interpolated, and sounds based on the parameters x1 to xn forming the tone color are played. At this time, if the store switch 64 and the preset switch 73 are operated, the parameters x1 to x interpolated in the storage area of the memory 50 corresponding to the preset switch 73.
n are sequentially stored.

As described above, according to the first embodiment,
For example, parameters x11 to xn1 such as an attack time and a day time which constitute a piano tone color required to output a piano tone from the synthesizer 110, and a harpsichord tone color required to output a harpsichord tone are configured. By setting the parameters x12 to xn2 in advance and setting an arbitrary voltage value Cc in the controller 10, it is possible to calculate the parameters x1 to xn that form the tone color in which the sounds of the piano and the harpsichord are interpolated. [Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. The first
The same reference numerals as those used in the embodiments indicate the same contents, and duplicate explanations are omitted.

In the configuration of the second embodiment shown in FIGS. 8 to 10, the parameter setting variable resistors 11 to 1n are operated to set the parameters of three types of performance sound elements and stored in the memory 50. Then, a parameter for interpolating between these parameters is calculated to generate a tone signal. Further, as the controller 10, in particular, FIG. 9A and FIG.
As shown in B, what is called modulation in which the voltage value is set by rotating the operation element is used, and the second program switch 62 and the store switch 64 in the first embodiment are used. Is omitted.

By the way, when setting three kinds of performance sound elements, the operator of the parameter setting variable resistor 11 is operated to set the parameter x11 as shown in FIG.
Is set, and the operator of the parameter setting variable resistor 12 is operated to set the parameter x21. Similarly, the respective parameter setting variable resistors 13 to 1n are operated to sequentially set desired parameters x31 to xn1. To do. Similarly, parameters x12 to xn2 and parameter x1
By setting 3 to xn3, three types of performance sound elements are set.

Next, a specific operation of the second embodiment of the present invention configured as described above will be described based on the flow charts of FIGS. 11 to 15. First, in order to set the first performance sound element, the operators of the parameter setting variable resistors 11 to 1n are operated to set the first parameters x11 to xn1 as shown in FIG. When the controller 10 is operated to output the voltage value C1, the voltage values corresponding to the parameters x11 to xn1 set in the parameter setting variable resistors 11 to 1n and the voltage values set in the controller 10 are set. A digital value including the voltage value C1 is given to the CPU 40. After that,
The CPU 40 proceeds to the parameter storage subroutine shown in FIG. 13 and sets the set parameters x11 to xn1.
And the data based on the voltage value C1 set in the controller 10 are temporarily stored in the memory 50, and are simultaneously D / A converted in the D / A conversion circuit 80 and output to the holding circuits 101 to 10n. Then, the CPU 40 determines whether or not the program switch 61 is operated, and if so, stores the above-mentioned data in the storage area 51 of the memory 50. Note that the recording area 51 is newly provided with a recording area for storing the voltage value set in the controller 10. Further, the CPU 40 stores the parameters x11 to xn1 and the voltage value C1 in the memory 50, and then returns to the main routine.

Subsequently, the parameter setting variable resistor 11 is set.
~ 1n to operate the second performance sound element parameter x12
~ Xn2 is set, and the voltage value C is set in the controller 10.
2 is set and the program switch 61 is operated. By this operation, the voltage value corresponding to the parameters x12 to xn2 and the voltage value C2 set by the controller 10 are stored in the storage area 52 of the memory 50 by the same operation as described above. Similarly, the parameter setting variable resistor 1
In 1 to 1n, the parameter x13 of the third performance sound element
~ Xn3 is set, and the voltage value C is set in the controller 10.
Set 3. After that, when the program switch 61 is operated, the parameters x13 to xn3 and the voltage value C3
Are stored in the memory 50. And the calculation switch 63
When is operated, the process proceeds to the calculation subroutine shown in FIG.

In the calculation subroutine, the ratio between the voltage value set in the controller 10 and each parameter is obtained in the same manner as in the first embodiment, but in the second embodiment, the controller 10 has three voltage values C1. Since C3 to C3 are set, the ratio between each voltage value C1 to C3 and the parameter is obtained as follows.

The ratio Δx11 of the difference between the voltage values C1 and C2 and the difference between the parameters 11 and x12, and the voltage values C2 and C3.
Difference Δ and the ratio between the parameters x12 and x13
x12 is required. Similarly, the ratio of each parameter is sequentially calculated. Then, each parameter x11 to x
n1, x12 to xn2 and the calculated ratios Δx11 to Δ
xn1 and Δx12 to Δxn2 are stored in the memory 50, respectively. When the CPU 40 finishes the processing of the calculation subroutine, it proceeds to the reproduction subroutine shown in FIG.

First, in the reproduction subroutine, for example, the voltage value C1 set by operating the controller 10 is set.
The voltage value Cc between C2 is the multiplexer 20 and AD.
It is given to the CPU 40 via the conversion circuit 30. Accordingly, the CPU 40 determines that the set voltage value Cc is equal to the voltages C1 and C.
It is determined whether or not the value is between 2. By this determination, if the voltage value Cc is between the voltage values C1 and C2, the differential pressure value Cd between the voltage value Cc and the voltage value C1 is calculated. Then, the calculated differential pressure value Cd is multiplied by the ratio Δx11 stored in the memory 50, and this multiplied value is added to the parameter x11 to calculate the interpolated value x1 of the parameter. Similarly, the interpolated values x2 to xn of the parameters are sequentially calculated. The interpolated values x1 to xn of the parameters obtained as a result of such calculation are D−
It is given to the synthesizer 110 via the A conversion circuit 80, the day multiplexer 90, and the holding circuits 101 to 10n. As a result, the synthesizer 110 can generate the performance sound based on the parameter obtained by interpolating between the parameters corresponding to the voltage values C1 and C2 set in the controller 10. When the voltage value Cc set in the controller 10 is larger than the voltage value C2, the CPU 40 subtracts the voltage value C2 from the voltage value Cc to calculate the differential pressure value Ce. Then, the ratio Δx12 is multiplied by the differential pressure value Ce, and the multiplied value and the second type parameter x12 are added to calculate the interpolated parameter x1. Similarly, the parameters x2 to xn are calculated, and the calculation result is given to the synthesizer 110 via the DA conversion circuit 80, the day multiplexer 90, and the holding circuits 101 to 10n. Therefore, the synthesizer 11
The voltage value C set in the controller 10 from 0
It is possible to generate musical tones corresponding to the parameters x1 to xn by interpolating between the parameters corresponding to 2 and C3.

In the second embodiment, the modulation lever is operated to set the voltage values C1 to C3. However, the pressing force is detected and the pressing force is detected without using the modulation bar. A so-called touch sensor that generates a corresponding voltage may be used.
Further, in the above-mentioned reproduction subroutine, an envelope signal voltage generator for generating an envelope signal is provided instead of operating the modulation bar, and the envelope signal voltage obtained from this envelope signal voltage generator is supplied to the multiplexers 20 and A-. It may be given to the CPU 40 via the D conversion circuit 30. This makes it possible to interpolate between the parameters corresponding to the voltage value set by the modulation lever in accordance with the moment of the envelope signal voltage, and generate a tone signal corresponding to this interpolated parameter. Then, just by arbitrarily selecting the waveform of the envelope signal voltage, without manually operating the modulation lever,
It is possible to generate a tone signal corresponding to a parameter that changes with time.

Further, instead of setting the voltage value by the modulation bar, the output voltage of the function generator may be given. In other words,
A function generator that triggers to generate an arbitrary voltage signal when a keyboard (not shown) included in the synthesizer is operated is provided, and the set tone color parameters are interpolated based on the output voltage from the function generator. You can This way
It is possible to generate a tone signal in which tone colors are interpolated based on the output voltage of the function generator. In addition,
In this case, it is necessary to omit the attack time, daytime time, sustain level, and release time from the parameters for setting the performance sound element. [Third Embodiment] A third embodiment of the present invention will be described with reference to FIGS. The same reference numerals as those used in the first and second embodiments indicate the same contents, and duplicate explanations are omitted. In the third embodiment, three pitches as operation tone elements are designated by the keyboard 120, and parameters between these pitches are interpolated so that a musical tone that changes in response to a change in pitch can be output. It was done. For this purpose, a keyboard 120 and a keyboard depression detection circuit 130 are provided in place of the controller 10 shown in FIG. As shown in FIG. 18, this keyboard 120 is constructed in the same manner as a conventionally known keyboard of a piano or organ. The keyboard depression detection circuit 130 detects whether or not each key on the keyboard 120 has been depressed.

Next, the specific operation of the third embodiment of the present invention configured as described above will be explained based on the flow charts of FIGS. 19 to 23. First, the procedure proceeds to the parameter storage subroutine shown in FIG. 21, and the parameter setting variable resistors 11 to 1n are set to set the first parameters x11 to xn1. Then, the program switch 61 and the lowest tone key switch included in the keyboard 120 are simultaneously operated. By this operation, the keyboard depression detection circuit 130 detects that the lowest tone key switch of the keyboard 120 has been operated and gives a detection signal to the CPU 40.

On the other hand, the parameters x11 to xn1 are given to the A / D conversion circuit 30 via the multiplexer 20, converted into digital values by the A / D conversion circuit 30, and converted into the lowest tone key switch of the keyboard 120. It is temporarily stored in the memory together with the original key number data J1. Then, it is determined that the program switch 61 is operated, the parameters x11 to xn1 and the key number data J1 of the lowest tone key switch are stored in the memory area 51 of the memory 50, and the process returns to the main routine.

Subsequently, the parameter setting variable resistor 11 is set.
.About.1n to set the second parameters x12 to xn2, operate the program switch 61, and operate the middle pitch key switch of the keyboard 120. By this operation, the parameters x12 to xn2 set in the parameter storage subroutine and the key number data J2 of the key switch are stored in the memory 50 in the same manner as described above.
Is stored in the storage area 52 of. Further, the parameter setting variable resistors 11 to 1n are operated to set the third parameters x13 to xn3, the program switch 61 is operated, and the highest tone key switch of the keyboard 120 is operated. By this operation, in the same way as described above,
The parameters x13 to xn3 and the key number data J3 of the highest tone key switch are stored in the storage area of the memory 50. After that, when the calculation switch 63 is operated,
Proceed to the calculation subroutine shown in FIG. In this calculation subroutine, the ratios Δx11 to Δxn1 and Δx12 to Δx are substantially the same as those in the second embodiment.
n2 is calculated. In this case, the ratios Δx11 to Δ
xn1 and Δx12 to Δxn2 are the differences between the key number data J1 and J2 with respect to the differences between the corresponding parameters of the first and second performance sound elements, and the differences between the second and third performance sound elements. It is each ratio between the key number data J2 and J3 with respect to the difference between the parameters. Then, the parameters x11 to xn1, x12 to xn2, the ratio Δx11
.About..DELTA.xn1 and .DELTA.x12 to .DELTA.xn2 are stored in the memory 50. After that, the CPU 40 proceeds to the reproduction subroutine shown in FIG.

In the reproduction subroutine, the ratios Δx11 to Δxn1 and Δx12 to Δxn stored in the memory 50.
When a desired pitch is generated based on the data of No. 2, one of the key switches included in the keyboard 120 is operated. The key number data Jc of the operated key switch is given to the CPU 40, and the CPU 40 inputs the key number data Jc, the key number data J1 of the lowest tone key switch and the key number of the medium pitch key switch. The data J2 is compared. The input key number data Jc is the key number data J1.
And the key number data J2, the difference number data Jd is obtained by subtracting the key number data J1 of the lowest tone key switch from the key number data Jc of the operated key switch. Then, the obtained difference number data Jd ratio Δx11 is multiplied, and the first parameter x11 is added to this multiplication value to obtain the interpolation data x1. Similarly, interpolation data x2 to xn are obtained. The parameters x1 to xn as the interpolation data x2 to xn thus obtained are given to the synthesizer 110 via the DA conversion circuit 80, the day multiplexer 90 and the holding circuits 101 to 10n.

When any key between the middle-pitch key switch and the highest-pitch key switch of the keyboard 120 is operated, the key number data Jc of the operated key switch is the middle level. It is determined that the pitch is larger than the key number data J2 of the key switch, and the difference number data Je between the two is obtained. Then, the obtained difference number data Je is multiplied by the ratio Δx12, and the second parameter x12 is added to this multiplication value to obtain the parameter x1 as the interpolation data. Similarly, the parameters x2 to xn of the interpolation data are obtained, and the synthesizer 110 generates sounds based on the obtained parameters x1 to xn of the interpolation data.

In the third embodiment, the parameter interpolation has been described in the case where the characteristics such as the tone color of the musical instrument change according to the pitch of the keyboard, but the tone color changes depending on the strength of keystrokes of a piano or the like. When it is desired to realize a musical instrument that changes, a player can be generated by interpolating parameters according to the strength of keystrokes and the pitch of the keystrokes. To this end, the keyboard depression detection circuit 130 causes the keyboard 120 to
While determining which of the keys has been operated,
Detect the pressing force of each key. On the other hand, the parameter setting variable resistors 11 to 1n set at least four types of parameters, the strongest and weakest keystroke force at the lowest pitch, and the strongest and weakest keystroke force at the highest pitch. At the same time, a parameter corresponding to the pitch of the key operated when one of the keys is operated and the strength of keystroke is calculated by interpolating the parameters set by the parameter setting variable resistors 11 to 1n. , It is possible to obtain a performance sound that is a musical tone filled with features that correspond to the strength of keystrokes and the pitch thereof.

In the first to third embodiments described above, the parameters of the two types of performance sound elements are connected by a straight line,
Although I explained as to the case of interpolating any point in between,
It is also possible to connect the parameters of the two types of performance sound elements with a curve and interpolate the points between them. Note that the above-described three embodiments may be combined and configured. Further, in the above-described embodiments, the case where the performance sound element for giving the musical sound signal to the analog synthesizer is generated has been described, but the performance sound element may be provided to the digital synthesizer. In this case, the parameters read from the memory may be output as they are without being converted into analog values.

[Brief description of drawings]

FIG. 1 is a schematic block diagram illustrating a first embodiment of the present invention.

FIG. 2 is an external view of an operation unit for explaining the first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing data stored in a memory for explaining the first embodiment of the present invention.

FIG. 4 is a flow chart of a main routine for explaining the first embodiment of the present invention.

FIG. 5 is a flow chart of a calculation subroutine for explaining the first embodiment of the present invention.

FIG. 6 is a flow chart of a calculation subroutine for explaining the first embodiment of the present invention.

FIG. 7 is a graph showing the calculation contents of parameters for explaining the first embodiment of the present invention.

FIG. 8 is a schematic block diagram illustrating a second embodiment of the present invention.

FIG. 9 is an external view of a controller for explaining a second embodiment of the present invention.

FIG. 10 is an explanatory diagram showing an operating state of a parameter setting variable resistor for explaining a second embodiment of the present invention.

FIG. 11 is an operation procedure illustrating a second embodiment of the present invention.

FIG. 12 is a main routine for explaining a second embodiment of the present invention.

FIG. 13 is a parameter storage subroutine for explaining the second embodiment of the present invention.

FIG. 14 is a calculation subroutine for explaining the second embodiment of the present invention.

FIG. 15 is a reproduction subroutine for explaining the second embodiment of the present invention.

FIG. 16 is a graph showing the calculation contents of parameters for explaining the second embodiment of the present invention.

FIG. 17 is a schematic block diagram illustrating a third embodiment of the present invention.

FIG. 18 is an external view of a keyboard for explaining a third embodiment of the present invention.

FIG. 19 is an operation procedure for explaining the third embodiment of the present invention.

FIG. 20 is a main routine illustrating a third embodiment of the present invention.

FIG. 21 is a parameter storage subroutine explaining the third embodiment of the present invention.

FIG. 22 is a calculation subroutine for explaining the third embodiment of the present invention.

FIG. 23 is a reproduction subroutine for explaining the third embodiment of the present invention.

[Explanation of symbols]

 10 controller 11-1n variable resistor for parameter setting 20 multiplexer 30 A-D conversion circuit 40 CPU 50 memory 61, 62 program switch 63 calculation switch 64 store switch 71-7n preset switch 80 D-A conversion circuit 90 day multiplexer 101- 10n holding circuit 110 synthesizer 120 keyboard 130 keyboard depression detection circuit

Claims (2)

(57) [Claims] 1. A performance sound element designating means capable of arbitrarily designating a performance sound element composed of a plurality of types of parameters, and (b) at least two performance sounds designated by the performance sound element designating means. with respect to the elements, these sound aspect to each other
Performance sound element weight designating means capable of arbitrarily designating relative weights of (c) each designated by the performance sound element weight designating means
At least 2 based on the relative weight of the performance sound elements.
Each of the corresponding parameters in the
And a state that generates the musical tone based only on <br/> sound aspects of the specified one by the weighting means, and (d) the sound aspect designating means for forming a parameter of the new sound aspects by combining , Said heavy
Tone generation apparatus of an electronic musical instrument characterized in that it comprises a Switching Operation changeover example means arbitrarily switch between a state of generating <br/> tone based on a new sound aspects formed Ri by the saw with means. 2. The musical sound generating apparatus for an electronic musical instrument according to claim 1, wherein the performance sound elements are timbre, pitch and / or volume.