JPH07107636B2 - Musical tone control device for electronic musical instruments - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone control device for an electronic musical instrument, and more particularly to improvement of an operation / display unit on a panel surface.

[Outline of Invention]

According to the present invention, on the panel surface of the electronic musical instrument, the first and second operating elements are provided on one side and the other side of the multilayer display respectively, and the tone color name and the second tone color selected based on the operation of the first operating element It is intended to improve the operability and the visibility by displaying the sound volume held based on the operation of the operation element on the multi-layer display in a superimposed manner.

[Conventional technology]

Conventionally, on the panel surface of an electronic musical instrument, as shown in an example in FIG. 7, many musical tone control operators such as a switch and a volume are provided. That is, in FIG. 7, a lower panel 1, an upper panel 2 and a front panel 3 are provided on the upper part of the electronic musical instrument main body, and the lower panel 1 has an autorhythm (LK) 4 in addition to the lower keyboard (LK) 4. AUTO RHY) Tempo Volume TV and various switches, and Auto Bass Code (ABC) and Arpeggio (ARP) switches are provided, and the upper panel 2 has an upper keyboard (U
In addition to K) 5, selection switches for various tones relating to UK, LK, PK (pedal keyboard) were provided.

Also, on the front panel 3, a rhythm selection switch group S1 relating to auto rhythm and an orchestra (OC
H) system tone selection switch group S2, orchestra system volume control volume V1, special preset (SPR) system tone color selection switch group S3, special preset system volume control volume V2, and orchestra system tone selection switch group S4 for LK, orchestra The system volume control volume V3, the special preset system tone selection switch group S5, the special preset system volume control volume V4, the tone selection switch group S6 and volume control volume V5 for the PK, and the master volume control MV were provided.

[Problems to be solved by the invention]

According to the above-mentioned conventional technique, there are the following problems.

That is, the selected sound group, (3) the selected sound group, tone color, rhythm, etc. can be checked by reading the name given to the operated switch. It is not easy to read and confirm the name. Also, to check the set volume, you can look at the lever setting position for the volume adjustment volume you have operated, but this will only give you a rough volume level of high, medium, and low. The level had to be played and confirmed.

[Means for solving problems]

An object of the present invention is to solve the above problems and to provide a musical tone control device for an electronic musical instrument having an operation / display unit with good operability and visibility.

A musical sound control device for an electronic musical instrument according to the present invention is a multi-layer display provided on a panel surface of a musical instrument body, and first and second multi-layer display provided on one side and the other side of the multi-layer display on the panel surface. Operator, selection means for selecting a desired tone characteristic based on the operation of the first operator, tone generating means for generating a tone signal having the tone characteristic selected by this selector, and this tone The setting means for setting a desired control amount for the tone signal generated by the generating means, which holds the control amount related to the setting based on the operation of the second operating element; The control means for controlling the generated tone signal according to the control amount held by the setting means, the name of the tone characteristic selected by the selecting means and the control amount held by the setting means. On the display And a display control means for displaying in a superimposed manner.

[Operation] According to the configuration of the present invention, a desired musical tone characteristic (for example, timbre characteristic) is selected based on the operation of the first operating element, and the name of the musical tone characteristic is displayed on the multilayer display. Also, the second
Desired control amount (eg volume) based on the operation of
Is held, and this control amount is superimposed on the name of the musical tone characteristic and displayed on the multi-layer display.

〔Example〕

Panel Structure (FIG. 1) FIG. 1 shows a panel structure of a three-step keyboard electronic musical instrument according to an embodiment of the present invention.

A lower panel 10, a middle panel 12, an upper panel 14 and a front panel 16 are provided on the upper part of the instrument body, and a lower keyboard (LK) 18 and a combination lever operation section 20 are provided on the lower panel 10. 12 has an upper keyboard (UK) 24,
The upper panel 14 has a solo keyboard (SK) 26 on the front panel.
The operation / display section 28, which will be described later with reference to FIG. Also, at the bottom of the instrument body,
Although a pedal keyboard (PK), an expression pedal, etc. are provided, they are not shown in FIG. In addition,
In the combination lever operation section 20, 20A is a group of weight ratio setting levers for combination type UK sounds,
20B is a group of weight ratio setting levers for the combination type LK sound, and 20C is a group of weight ratio setting levers for the combination type PK sound.

Operation / Display Unit (FIG. 2) FIG. 2 shows a detailed configuration of the operation / display unit 28. In this operation / display unit 28, a large number of display devices and touch sensors related to these display devices are arranged according to the classification. They are arranged side by side. Here, the functions of each indicator and the touch sensor according to the classification will be described as follows.

(1) Total volume (TOTAL VOL) The display unit 30 displays the volume in a bar graph format by the lighting length (corresponding to the hatched portion) extending from the center position C to the left and right, and the touch sensor arranged on the right side of the display.
When you touch 32, the volume set with the expression pedal at that time is displayed as the total volume.

(2) Tone and volume for solo keyboard (SK) The display 34 superimposes the tone name and volume for SK. The tone name selected by the touch sensor 36 arranged on the left side is, for example, "VIOLIN". In addition to the above display, the volume set by the expression pedal when the touch sensor 38 on the right side is operated is displayed in a bar graph format as in the case of the above-mentioned display 30. Touch sensor
The tone color displayed on the display 34 changes each time the touch switch 36 is touched, so by operating the touch sensor 36 while looking at the display 34, for example, Piccolo, flute, oboe, clarinet, trumpet, saxophone, horn, trombone, violin. You can select any of 16 tones such as, Cello, Jiya's guitar, Harmonica ... etc.

(3) Tones and volume for upper keyboard (UK) For UK, combination (COMBI), orchestra (ORCHE), special preset (SPECI)
And, there are 4 sound groups of custom voice type (CUSTOM),
It is possible to select the tone color and set the volume for each tone group.

The combination type can obtain various organ sounds, and the tones that can be selected are "combination", "memory" 1 to 3, and "preset" 1 to 4
There are eight types. Here, "combination"
Is the one corresponding to the rate set by the rate ratio setting lever group 20A (Fig. 1), and "Memory" is the one set by the rate rate setting lever group 20A and stored in the memory (3 types of memory are available. "Can be stored", "pre-set" are those which have been set in advance so as to correspond to, for example, a chair organ, a jazz organ, and a theater organ. The display 40 is a display that superimposes the timbre name and volume of the UK sound of the combination type, and the touch sensor 42 arranged on the left side allows the touch sensor
For example, the tone name selected in the same way as in the case of 36 is
In addition to displaying "ETI", the volume set by the expression pedal when the touch sensor 44 on the right side is operated is displayed in a bar graph format as with the above-mentioned display 30.

The orchestra system produces a sound with a thickness that is typical of ensemble instruments used in orchestra such as strings and brass. The selectable tones are strings 1-4, brass 1-3, and lead. There are 12 types: 1, lead 2, vocals, spice 1 and spice 2. The display 46 displays the name of the tone color selected by the touch sensor 48 on the left side and the volume set when the touch sensor 50 on the right side is operated in a superimposed manner with respect to the orchestral UK sound.

Various types of instrument sounds such as piano and vibraph on can be obtained with the special preset system. Tones that can be selected are piano, harpsichord, chieresta, vibraph on, marimba, mandolin, banjo, jeaz guitar, brass 1, brass 2, kosmsk. There are 11 types. The display unit 52 superimposes the name of the tone color selected by the touch sensor 54 on the left side and the set volume at the time of operation of the touch sensor 56 on the right side with respect to the UK sound of the special preset type.

Custom voices are a variety of instrument sounds that can be obtained as a single note.Selectable tones include flute, oboe, clarinet, saxophone, trumpet, trombone, violin, jeaz guitar, Hawaiian guitar, bass guitar, vocals, and cosmetics. There are 15 types of 1-4. The display device 58 displays the name of the timbre selected by the touch sensor 60 on the left side and the set volume when the touch sensor 62 on the right side is operated in a superimposed manner with respect to the custom voice type UK sound.

The method and display mode of tone color selection and volume setting in each tone group of the orchestra system, the special preset system, and the custom voice system are the same as those described above for the combination system.

(4) Tone and volume for the lower keyboard (LK) As for the LK, as in the case of the above-mentioned UK, there are 4 tone groups of combination type, orchestra type, special preset type and custom voice type, and each tone group. Each tone color can be selected and the volume can be set.

The tones that can be selected in the combination type are:
There are eight types of "combination", "memory" 1 to 3, and "preset" 1 to 4. The rate setting for "combination" and "memory" is the rate setting lever group 20B (Fig. 1). It is carried out by. The display unit 64 displays the timbre name and volume based on the operation of the left and right touch sensors 66 and 68 for the combination type LK sound in a superimposed manner.

The tones that can be selected in the orchestra system are strings 1-3, brass 1-3, lead, vocal 1,
12 vocals, 1 spice, 2 spices, 12 cosmetics
There are different types. The display 70 displays the name and volume of the tones based on the operation of the left and right touch sensors 72 and 74 in a superimposed manner with respect to the orchestral LK sound.

There are 11 types of tones that can be selected in the special preset system: piano, electric piano, harpsichord, harp, acoustic guitar, jazz guitar, brass 1, brass 2, and cosmetics 1 to 3. Display 76
Is a superimposed display of the tone color name and volume based on the operation of the left and right touch sensors 78 and 80 for the special preset type LK sound.

Tones that can be selected for custom voices are UK
There are the same 15 types of custom voices mentioned above. The display unit 82 superimposes and displays the tone color name and volume based on the operation of the left and right touch sensors 84 and 86 for the LK sound of the custom voice type.

The method of selecting the tone color and setting the volume of each LK tone group and the display mode are the same as those described above for the UK.

(5) There are two tone groups, a combination type and a custom voice type, regarding the tone color and volume PK of the pedal keyboard (PK), and tone color selection and volume setting are possible for each tone group.

The tones that can be selected in the combination type are:
"Combination", "Memory", "Preset"
There are four types, 1 and "preset" 2. The rate setting for "combination" and "memory" is performed by a group 20C of rate setting levers (Fig. 1). The display 88 displays the tone color name and the volume based on the operation of the left and right touch sensors 90 and 92 in a superimposed manner with respect to the combination PK sound.

There are ten types of tones that can be selected in the custom voice system, including contrabass 1 to 4, chambers, electric basses 1 to 3, vocals, and cosmetics. The display 94 is
Left and right touch sensors 96 for custom voice PK sounds
And 98, the timbre name and the volume based on the operations of 98 are displayed in a superimposed manner.

The method of selecting the tone color and setting the volume of each tone group of the PK and the display mode are the same as those described above for the UK.

(6) Control for automatic accompaniment (AUTO) There are three types of automatic accompaniment: auto rhythm (RHYTHM), auto arpeggio (ARPEGIO), and auto bass chord (ABC).

The auto rhythm is one in which various rhythm patterns stored in the memory are appropriately selected and read, and a rhythm sound is automatically generated according to the read rhythm pattern. In this regard, the display devices 100 and 104, Touch sensor 102, 10
6, 108A, 108B, 110, 112 are provided.

The display 100 displays the tempo set by touching the touch sensor 102 arranged on the right side of the touch sensor 102 at an arbitrary time interval, such as "120".

The display unit 104 displays the rhythm name selected by the touch sensor 106 at the upper left of the display unit, such as "WALTZ". For the volume display, the volume display section of the cymbal system (SY) is used.
104A and a drum system (DR) volume display section 104B. Touch sensors 108A and 108B are provided on the right side of the volume display units 104A and 104B, respectively.
The volume set by the expression pedal during the operation of 108A is displayed in the volume display section 104A in the form of a bar graph as in the case of the display unit 30 described above, and the set volume during the operation of the touch sensor 108B is displayed in the volume display section 104B in the same manner. Is displayed.

When selecting the rhythm, the rhythm name displayed on the display 104 changes each time the touch sensor 106 is touched, so by operating the touch sensor 106 while looking at the display 104, the march, waltz, ballad, swing,
You can select any rhythm, such as rock .... Then, the selected rhythm name and the cymbal-type and drum-type volumes set as described above are displayed in a superimposed manner on the display unit 104.

The touch sensor 110 is operated at the time of rhythm start, and the touch sensor 112 is operated at the time of starting rhythm in synchronization with keyboard performance or the like. When these touch sensors 110 and 112 are both operated,
The operation part is lit up.

The Auto Arpeggio is a system in which various chords of dispersed chords are obtained in conjunction with the rhythm. For each rhythm, any one of eight patterns can be selected, and for example, among the piano, harpsichord, strings and harp. Any tone of can be selected. The display unit 114 displays the tone color and pattern name and the volume for the auto arpeggio in a superimposed manner, and displays the tone color and pattern name selected by the touch sensor 116 on the left side as, for example, “HARPI” and at the same time on the right side. The volume set by the expression pedal when the touch sensor 118 is operated is displayed in a bar graph format like the display 30 described above.

The tone color and pattern relating to the arpeggio can be selected in the same manner as the above-described rhythm selection because the displayed tone color / pattern name changes each time the touch sensor 116 is touched.

The auto-bass chord automatically generates chord sounds and / or bass sounds by using the key depression data in LK and various chord patterns and bass patterns stored in the memory. You can select any of four modes: single finger, finger guard code, and custom ABC. Indicator 120
Indicates the mode name with respect to the auto bass code, and the mode name selected by the touch sensor 122 on the left side is, for example, "S.FI" in the case of the single finger mode.
It is supposed to be displayed like "NGER". The mode selection can be performed in the same manner as the rhythm selection described above, because the display mode name changes each time the touch sensor 122 is touched.

Of the various indicators described above, indicators 34, 40, 46, 52,
58, 64, 70, 76, 82, 88, 94, 104, 114 use, for example, a multi-layer liquid crystal display to display the selection state and the volume in a superimposed manner, but the other displays 30, 100, 120 May be a single-layer liquid crystal display, an LED (light emitting diode) display, or the like.

Circuit Configuration (FIGS. 3 and 4) Next, the circuit configuration of the electronic musical instrument will be described with reference to FIGS. 3 and 4.

The total volume control expression pedal 130 generates an analog signal according to the amount of depression of the pedal, and this analog signal is converted into a digital signal by an analog / digital converter (ADC) 132. The digital signal output from the ADC 132 is used as the volume control data OD, and is supplied to the register attached to various musical tone forming circuits described later while being supplied to the register 134. Register 134
The volume control data OD is loaded according to the operation of the touch sensor 32, and the volume control data sent from the register 134 is supplied to the total volume control circuit 136.

The total volume control circuit 136 receives various tone signals described later, and controls the volume of various tone signals as a whole according to the volume control data from the register 134. The various tone signals output from the total volume control circuit 136 are supplied to the sound system 138,
Converted to sound.

The volume control data from the register 134 is also supplied to the display unit 30, and in response thereto, the display unit 30 displays the total volume in the bar graph format as described above.

SK sound generation The solo tone formation circuit 140 forms a solo tone signal ST in accordance with the key depression data SKD from the SK26 to generate a total volume control circuit 13
6 supplies. Regarding the solo tone signal ST, the tone color is selected by the touch sensor 36, and the volume is set by the touch sensor 36.
It is set according to the volume control data OD loaded in the register 142 when the operation of 38 is performed. Then, the selected tone color name and the set volume are displayed on the display 34.

UK tone generation As the tone forming circuit responding to the key press data UKD from the UK24, there are a combination type tone forming circuit 144, an orchestra type tone forming circuit 148, a special preset type tone forming circuit 152, and a custom voice type tone forming circuit. Forming circuit 156
And are provided.

The tone generation circuit 144 for the combination type has key pressing data UKD.
In accordance with the above, a combination tone signal UCT is formed and supplied to the total volume control circuit 136. Regarding the combination tone signal UCT, the tone color is touch sensor 4
2, the volume is set according to the volume control data OD loaded in the register 146 when the touch sensor 44 is operated. Then, the selected tone color name and the set volume are displayed on the display 40.

The orchestra tone generation circuit 148 forms an orchestra tone signal UOT according to the key depression data UKD and supplies it to the total volume control circuit 136. Regarding the orchestral tone signal UOT, the tone color is selected by the touch sensor 48, and the volume is set by the register 150 when the touch sensor 50 is operated.
It is set according to the volume control data OD loaded in.
Then, the selected tone color name and the set volume are displayed on the display.
Displayed on 46.

The special preset type musical tone forming circuit 152 forms a special preset type musical tone signal UST according to the key depression data UKD and supplies it to the total volume control circuit 136. Regarding the special preset system tone signal UST, the tone color is selected by the touch sensor 54, and the volume is set according to the volume control data OD loaded in the register 154 when the touch sensor 56 is operated. Then, the selected tone color name and the set volume are displayed on the display unit 52.

The custom voice type musical tone forming circuit 156 forms a custom voice type musical tone signal UVT according to the key depression data UKD and supplies it to the total volume control circuit 136. With respect to the custom voice type musical tone signal UVT, the tone color is selected by the touch sensor 60, and the volume is set according to the volume control data OD loaded in the register 158 when the touch sensor 62 is operated. Then, the selected tone color name and the set volume are displayed on the display 58.

LK sound generation Key depression data LKD sent from LK18 via OR circuit 160
As the tone forming circuit which responds to, the combination type tone forming circuit 162 and the orchestra type tone forming circuit 166 are provided.
, A special preset type musical tone forming circuit 170 and a custom voice type musical tone forming circuit 174 are provided.

The tone generation circuit 162 for the combination type system produces key depression data LKD.
In accordance with the above, a combination tone signal LCT is formed and supplied to the total volume control circuit 136. Regarding the combination-type tone signal LCT, the tone color is touch sensor 6
The volume is selected by 6, and the volume is set according to the volume control data OD loaded in the register 164 when the touch sensor 68 is operated. Then, the selected tone color name and the set volume are displayed on the display unit 64.

The orchestra tone generation circuit 166 forms an orchestra tone signal LOT according to the key depression data LKD and supplies it to the total volume control circuit 136. Regarding the orchestral tone signal LOT, the tone color is selected by the touch sensor 72, and the volume is set by the register 168 when the touch sensor 74 is operated.
It is set according to the volume control data OD loaded in.
Then, the selected tone color name and the set volume are displayed on the display.
Displayed at 70.

The special preset type musical tone forming circuit 170 forms a special preset type musical tone signal LST according to the key depression data LKD and supplies it to the total volume control circuit 136. Regarding the special preset type tone signal LST, the tone color is selected by the touch sensor 78, and the volume is set according to the volume control data OD loaded in the register 172 when the touch sensor 80 is operated. Then, the selected tone color name and the set volume are displayed on the display 76.

The custom voice type musical tone forming circuit 174 forms a custom voice type musical tone signal LVT according to the key depression data LKD and supplies it to the total volume control circuit 136. Regarding the custom voice type musical tone signal LVT, the tone color is selected by the touch sensor 84, and the volume is set according to the volume control data OD loaded in the register 176 when the touch sensor 86 is operated. Then, the selected tone color name and the set volume are displayed on the display 82.

PK sound generation In FIG. 4, as the tone formation circuit that responds to the key depression data PKD sent from the PK 178 via the OR circuit 180,
A combination type tone forming circuit 182 and a custom voice type tone forming circuit 186 are provided.

The combination type tone forming circuit 182 uses the key depression data PKD
In accordance with the above, a combination type tone signal PCT is formed and supplied to the total volume control circuit 136. Regarding the combination tone signal PCT, the tone color is touch sensor 9
The volume is selected by 0, and the volume is set according to the volume control data OD loaded in the register 184 when the touch sensor 92 is operated. Then, the selected tone color name and the set volume are displayed on the display 88.

The custom voice type musical tone forming circuit 186 forms a custom voice type musical tone signal PVT according to the key depression data PKD and supplies it to the total volume control circuit 136. Regarding the custom voice tone signal PKD, the tone color is selected by the touch sensor 96, and the volume is set according to the volume control data OD loaded in the register 188 when the touch sensor 98 is operated. Then, the selected tone color name and the set volume are displayed on the display unit 94.

Auto Rhythm Sound Generation In FIG. 4, the pattern generation circuit 190 includes a memory storing various rhythm patterns, various chord patterns, various bass patterns and various arpeggio patterns, and the rhythm patterns to be read out. Are selected by the rhythm selection signal RSL from the rhythm selection circuit 192 in response to the operation of the touch sensor 106. The rhythm selection signal RSL is also supplied to the display 104, and in response to this, the display 104 displays the selected rhythm name.

The tempo setting circuit 194 generates tempo data TEM based on the operation of the touch sensor 102, and the tempo data TEM is supplied to the pattern generation circuit 190 and the display device 100. The display device 100 displays the tempo value according to the tempo data TEM.

When the touch sensor 110 is operated, the pattern generation circuit 190
Then, the rhythm pattern selected by the rhythm selection signal RSL is read from the memory according to the tempo designated by the tempo data TEM. With such rhythm pattern reading, the cymbal system rhythm pattern signal RPS and the drum system rhythm pattern signal RPD are supplied from the pattern generation circuit 190 to the cymbal system rhythm sound source circuit 196 and the drum system rhythm sound source circuit 200, respectively. In response, the cymbal rhythm sound source circuit 196 generates the cymbal rhythm sound signal RST, and the drum rhythm sound source circuit 200 generates the drum rhythm sound signal RDT. Then, these rhythm sound signals RST and RDT are supplied to the total volume control circuit 136.

The rhythm sound signal generating operation as described above is performed by the touch sensor.
Even if you start pressing keys with the LK18 after operating the 112, the LK18
Is performed in response to the any key-on signal AKON from. It should be noted that when the touch sensor 110 is operated, the lighting part 110a of the operation part is turned on, and when the touch sensor 112 is operated, the lighting part 112a of the operation part is turned on.

In the cymbal rhythm sound source circuit 196, the volume of the signal RST is set according to the volume control data OD loaded in the register 198 when the touch sensor 108A is operated, and the set volume is displayed on the display unit 104A. Also, drum-based rhythm sound source circuit
At 200, the volume of the signal RDT is set according to the volume control data OD loaded in the register 202 when the touch sensor 108B is operated, and the set volume is displayed on the display unit 104B.

Automatic Bass Chord Sound Generation In FIG. 3, an ABC mode selection circuit 204 generates a mode selection signal MD based on the operation of the touch sensor 122. The mode selection signal MD is a key data generation circuit 206 for ABC and It is supplied to the display 120. The display device 120 displays the selected mode name according to the mode selection signal MD.

For the ABC key data generation circuit 206, key depression data LK
A chord type detection circuit for detecting chord types (chord types such as root note and media, minor, sevens, etc.) based on D and mode selection signal MD is provided, and a pattern selection signal PS corresponding to the detected chord type is provided. It is happening.

The pattern selection signal PS is the pattern generation circuit 190 of FIG.
Is supplied to. In the pattern generation circuit 190, the chord pattern and the bass pattern to be read are designated according to the pattern selection signal PS and the rhythm selection signal RSL. Then, the designated code pattern and base pattern are read according to the tempo indicated by the tempo data TEM, and along with this, the code pattern signal CP and the base pattern signal BP are generated.

The code pattern signal CP and the base pattern signal BP are supplied to the ABC key data generation circuit 206 of FIG. ABC
The use key data generation circuit 206 generates code key data CKD in response to the code pattern signal CP and also generates base key data BKD in response to the base pattern signal BP. The chord key data CKD is supplied to the tone forming circuits 162, 166, 170, and 174 via the OR circuit 160, whereby the auto chord sound can be generated. In addition, the bass key data BKD can be formed into a musical tone via the OR-enabled 180 shown in FIG.
It is supplied to the 182 and 186, which enables the automatic bass sound to be generated.

Auto Arpeggio Sound Generation In FIG. 4, the arpeggio tone formation circuit 208 has a tone color / pattern selection circuit for selecting the tone color and pattern of the arpeggio tone based on the operation of the touch sensor 116. , Arpeggio pattern selection signal APS is generated.

Arpeggio pattern selection signal APS is used for pattern generation circuit 1
Supplied to 90. In the pattern generation circuit 190, the arpeggio pattern to be read is designated according to the arpeggio pattern selection signal APS and the rhythm selection signal RSL. Then, the specified arpeggio pattern is the tempo data TEM.
Is read out in accordance with the tempo indicated by and the arpeggio pattern signal AP is generated accordingly.

The arpeggio pattern signal AP is an arpeggio musical tone forming circuit.
Arpeggio musical tone forming circuit 2 is supplied to the 208
08 generates an arpeggio sound signal APT. Then, the arpeggio sound signal APT is supplied to the total volume control circuit 136.

Regarding the arpeggio sound signal APT, the tone color and pattern are selected by the touch sensor 116, and the volume is set by the touch sensor 118.
Volume control data O loaded in register 210 when is operated
Set according to D. Then, the selected tone color, pattern name, and volume are displayed on the display 114.

As described above, when not only the total volume is controlled by the expression pedal 130 but also the volume of various musical tones is used as a control circuit, it is not necessary to provide an individual volume for each musical tone, which simplifies the configuration and operation and reduces the cost. It can be reduced.

Example of Configuration of Musical Sound Forming Circuit (FIG. 5) FIG. 5 shows an example of a circuit configuration that can be appropriately used as the various types of musical sound forming circuits described above.

In the tone forming circuit 220, the digital tone generator 222 generates a tone signal TS in accordance with key depression data (or key data) KD, and this tone signal TS is supplied to the gate circuit 224.

The gate circuit 224 includes a large number of gate elements corresponding to the large number of tone color filters in the tone color filter circuit 226, and the tone signal TS is supplied to these gate elements. Further, the conduction / non-conduction of a large number of gate elements in the gate circuit 224 is controlled according to the count output of the ring counter 230 which is stepped up each time the tone color selection touch sensor 228 is operated. Is possible.

The count output of the ring counter 230 is supplied to the display device 232, and the display device 232 displays the selected timbre name accordingly.

The tone signal TS is a tone color filter selected by the gate circuit 224 (any one of the tone color filter circuits 226).
Is supplied to the voltage control type variable gain amplifier (VCA) 234 via. As the control input of the VCA 234, the volume control data OD loaded in the register 238 when the touch sensor 236 for volume setting is operated is used as a digital / analog converter (DAC) 240.
The D / A-converted signal is supplied by, which enables volume control according to the operation of the expression pedal.

The volume control data from the register 238 is also supplied to the display unit 232, and in response thereto, the display unit 232 displays the volume in a bar graph format so as to overlap the timbre name.

If the T-flip flop 242 is driven by the operation signal of the touch sensor 236 and the volume control data OD is loaded into the register 238 in accordance with the output of the flip flop 242, the output of the flip flop 242 is "1". The expression pedal can be used to control the volume over time, and there is an advantage that the volume can be controlled without touching the touch sensor 236 during a performance. In this case, if a lighting unit 244 is provided at the operation portion of the touch sensor 236 and the lighting unit 244 is turned on according to the output "1" of the flip-flop 242, it is possible to easily determine which music is under volume control.

Other Configuration Example of Volume Control Circuit (FIG. 6) FIG. 6 shows another configuration example of the volume control circuit, in which the same parts as those in FIG. The description is omitted.

A feature of the circuit shown in FIG. 6 is that the volume can be set according to the touch duration time of the touch sensor 236 without using the expression pedal. That is, when the touch sensor 236 is touch-operated, the counter 248 is reset for a moment in accordance with the output signal of the differentiating circuit 246 that differentiates the operation signal in the rising direction. Further, since the operation signal of the touch sensor 236 makes the AND gate 250 conductive, the clock signal from the clock source 252 is input to the counter 248 via the AND gate 250 and counted.

When the touch operation of touch sensor 236 is stopped, AND gate 25
0 becomes non-conductive, and the counter 248 also stops the counting operation.
Therefore, the count output of the counter 248 corresponds to the touch duration time in the touch sensor 236, and if the VCA 234 is controlled by the signal obtained by D / A converting this count output in the DAC 240, the volume setting according to the touch duration time can be performed. It will be possible.

〔The invention's effect〕

As described above, according to the present invention, the first and second operating elements are provided on one side and the other side of the multilayer display, respectively, and the name of the musical tone characteristic selected based on the operation of the first operating element is displayed. Since the control amount held based on the operation of the second operator is displayed on the multi-layer display in a superimposed manner, the movement of the viewpoint is smaller than in the case where an individual display is provided for each operator. The effect of improving operability and visibility is obtained.

Further, in the present invention, since the musical tone characteristic name and the control amount are displayed in a superimposed manner on the multi-layer display, the space and parts required for the display are different from those in the case where they are displayed on separate displays. The number is small, and there is an effect that the operation / display unit can be downsized and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a top view showing a panel configuration of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a front view showing an operation / display unit in the electronic musical instrument, and FIGS. FIG. 5 is a circuit diagram showing a circuit configuration of an electronic musical instrument, FIG. 5 is a circuit diagram showing an example of a tone forming circuit, FIG. 6 is a circuit diagram showing another example of a volume control circuit, and FIG. It is a top view which shows the panel structure in a musical instrument. 16 …… Front panel, 28 …… Operation / display, 30,34,4
0,46,52,58,64,70,76,82,88,94,100,104,114,120 …… Display, 32,36,38,42,44,48,50,54,56,60,62,66,68, 72,7
4,78,80,84,86,90,92,96,98,102,106,108A, 108B, 110,11
2,116,118,122 ... Touch sensor.

Claims (1)

[Claims] 1. A multi-layer display provided on a panel surface of a musical instrument body, first and second operating elements respectively provided on one side and the other side of the multi-layer display on the panel surface, A selecting means for selecting a desired musical tone characteristic based on the operation of the one operator, a musical tone generating means for generating a musical tone signal having the musical tone characteristic selected by this selecting means, and a musical tone generating means. A setting means for setting a desired control amount for the musical tone signal, which holds the controlled amount related to the setting based on the operation of the second operating element, and a musical tone signal generated by the musical tone generating means. A control means for controlling according to the control amount held by the setting means, a name of the musical tone characteristic selected by the selecting means, and a control amount held by the setting means are superposedly displayed on the multilayer display. Display control hand Musical tone control apparatus for an electronic musical instrument provided with and.