JPS58193591A - Musical tone controller for electronic musical instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a musical tone control device for an electronic musical instrument, in which the timbre and volume of a musical tone to be generated selected and set by a timbre setting means are visually displayed by a display means. Concerning what K should do.

[Prior art]

Conventionally, there are electronic musical instruments in which one operator is provided with a count corresponding to each tone, and the tone tube of the musical tone is set by selectively operating the operator, and the volume is set by the amount of operation of the operator. .

By the way, during a performance, etc., it is very difficult to adjust the timbre and volume of a musical sound by operating the above-mentioned kW number of control tubes once. Write the distribution device K in advance,
A brisect device has been devised that reads this information as appropriate to control the timbre and volume of musical tones.

However, it is not easy for a performer to accurately grasp the MI of each preset operator, and especially for beginners, it is difficult for a performer to accurately grasp the MI of each preset operator. Operating Instructions I
It is difficult to recognize I-kai.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and provides a musical tone system for a Kl-order electronic musical instrument so that the operating state of each preset operator can be easily identified and recognized.

[Summary of the invention]

In this invention, in order to achieve the above-mentioned objective, a display device (display means) is provided for visually displaying each tone and its volume in correspondence with each front panel operator (tone pitcher WINK), and Data indicating the operation status of each operator is added to the display, and the contents of the data are displayed.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawing 1kIt.

FIG. 1 shows an overall outline of an embodiment of an electronic musical instrument to which this invention is applied.

In FIG. 1, the mulberry tone control operator circuit 1 includes operators for controlling the timbre, volume, and effect of the generated musical tones, respectively. Here, the musical tone control operators 1--1-- are used to control the speed and depth of each of the flute 16' series, 8' series, 4' series, trombone 16' series, 8' series, and 4' series tones, as well as the speed and depth of the vibrato effect. Although only numbers 1 to 1-8 are shown, in reality, operators for controlling other tones, volume, effects, etc. are also provided. Musical tone control operators 1-1 to 1-8 output friend signals in accordance with the amount of operation of each operator. Each of the musical tone control operators 1-1 to 1-8 has 15 switch contacts 2 that are turned on step by step in response to operations (all turned off when not operated at all), as shown in Figure 812, for example. ), and converts the signal corresponding to the skeleton aP'1'' into a 4-bit signal through three encoders.
A similar signal tube can be obtained by constructing each of the musical tone control operators 1-1 to 1-at polyneem and converting the respective outputs into 7-nano-to-digital data.

Each musical tone control operator l-1 to 1 of the musical tone control operator circuit 1
A signal corresponding to the operation amount output from -8 (hereinafter referred to as manifold operation data) #i Musical tone 1 control register 4
is input.

In addition to the manual operation data mentioned above, the musical tone control register 4KFi also receives musical tone control data stored in 19 sectors in the preset circuit 5 (hereinafter referred to as "P-IJ sector data"). In this case, the preset circuit 5 stores a data pipe length m5 regarding each operation amount of the musical tone control operators 1-1 to ]-8.
ai- This is preset, and one set of preset data is read out by a simple switch operation by the performer. Musical tone control register 4tj Normally ! from the musical tone control register j181! Holds the universal operation data, and when the preset data is read from the preset time W15, 1! is 1! ! 1# Hold preset data,
In addition, when the section key 11 is held, the musical tone 1111tl operator 1-1 to 1-8 is operated fL7t IIFi, and only the operated operator KwA retains its output signal. do. Further, the timing signal generating circuit 28 is a circuit for generating various signal tubes for counting the number of timing tones when writing or reading the preset channel.

The data f' held in the musical tone control register 4 is decoded by a decoder 6 and used for controlling various tones, effects, etc. IIK.

In other words, the vibrato sequence KIMi output from the decoder 6 is converted from digital to analog! 17
Vibrato voltage controlled oscillation (11tVcO)8
0 control and controls the number of oscillating pigeon waves. In addition, data related to the depth of the vibrato is transmitted via a digital analog converter 9 to a voltage-controlled amplification 6tVCA) 1
0! 4IlvA) input and controls its gain.
A vibrato signal having a predetermined wave number (for example, a number H-) and a predetermined amplitude is output. The vibrato signal output from the VCAIO is added to the tone generator IIK. Division a (both not shown) pipe fittings, corresponding to each aK in the keyboard 12, 16 feet, 8 feet, 4
Outputs sound source signals such as feet. The well-distributed vibrato signal is, for example, added to the above-mentioned sound oscillator (for example, a VCO) and its oscillation is controlled by wave number control. As a result, a vibrato effect of a predetermined depth at a predetermined fast tw4 wave number is added to the phonetic signal, and the resultant signal is output from the tone generator 11.

Each sound-signal 1j output from tone generator ll
1 is added to the va closed circuit 13, and only the sound source signal corresponding to the key 7 pressed on the keyboard 12 is selected and added to the tone color circuit 14. f color circuit 141: tone (flue) 16', 8', 4' series, trombone 1 corresponding to each picture artist 1-1 to 1-6 in the musical tone control i11 operator circuit
6', 8', 4' system) consists of tone filters that apply a tone color filter, and each tone color tube imparts the inputted sound source signal and outputs it. The output 111KFi level control ports 15-1 to 15-6 of each of these filters, respectively! I have a string. The level control circuits 15-1 to 15-6 each tone (flute 16
',...The level of the musical tone signal of the trompon 4') is controlled before the sound distribution, and the output data of the e-meta 4, i.e. the above-mentioned brisect data or manual! It is controlled according to the I-production data. These level control circuits 15-1 to 15-
6 is configured as an IF by a voltage dividing circuit consisting of four resistor arrays 16 as shown in FIG. 3, for example. Then, one of the 15 FET gates 17 connected to each voltage dividing point is activated by the signal from the decoder 6, and adjusts the musical tone signal applied from the tone circuit 14 to an excessive degree. For example, when the operation amount indicated by the output data of the musical tone control register 4 is small, the lower FET gate is turned on and the operation amount outputted from the Hata tone signal meeting at the construction area level is 00. yes n FET gate 4h8
However, as the amount of operation increases, the upper FET gate turns on and outputs a musical tone signal at a high level.

The musical tone signals of the respective tones whose levels have been adjusted in the level control circuits 15-1 to 15-6' are synthesized by the mixer 718.
and reaches the sound system 19. In this way, the sound system 19 adds tones and effects corresponding to the preset data or manual operation data.
* occurs when hot water leaks.

Further, the signal lamp display W62 output from the decoder 6
OK addition f0 display 8!120 is musical tone control register 4
It displays the value (regarding the operation amount of the musical tone control operators 1-1 to ]-8) held in the friend data (for example, each operator of the musical tone control operator circuit 】-1 to 1-8. The display lamps 20-1 to 20-1 are arranged in correspondence with each other. Nine individual display lamps 20-1 to 2O
-8Fi For example, as shown in FIG. 2, it is composed of 15 light emitting diodes 21 each connected to the output line of the decoder 60, and the light emitting diodes of the step corresponding to the value of the data held in the musical tone control register 4 are 0 lit
For example, if the preset data is not set out, each of the operators 1-1 to 1- in the musical tone control operator circuit IK
8! If the preset data is narrowed down, the amount of operation indicating the relevant preset data is displayed respectively. ]-8 is the operating source f', the manual operating data for the operated item K is displayed in place of the preset data. This f' allows the yI player to reliably grasp the status of the currently set musical tone, effects, etc.

Next, we will discuss the details of the tone control register 4, brisect circuit 5, and tying signal generation circuit array agJ4.
do.

First, the preset port 5 will be explained.

The blisect circuit 5 shown in FIG. Memory (RAM) 2 to store this operation amount
3 is provided. In the example of the llLl diagram, ti
It is set to preset the data tube that can be output from the musical tone control register 4. That is, the multiplexing circuit 24Fi
The output data of musical tone control register 4 is multiplexed and sent to memory 2.
3, and the multiplexed data is controlled to be written into the memory 23 based on the write switch 60 being turned on when writing the data. In this embodiment, four operating states can be preset as described above, and correspondingly, 23Kti of memories are provided.
Four memory locations are provided. The preset selection switch circuit 22Fi selects one of the four memory locations during writing and emptying; that is, the preset selection switch circuit 22 has four preset selection switches 221 to 22dt, and y! When one of them is thrown by the dicer, the number 11 corresponding to the thrown switch is added to the memo I) 23 via the encoder 27 as an address signal. In this way, data is written into the storage location of the memory device corresponding to the input switch in the brisect selection switch circuit 1122, or data is extracted from the storage section.

The timing signal generating circuit 28 for generating signals for controlling the write operation and read operation as described above is configured as shown in FIG. 4, for example. In Figure 4 and Figures 6 and 7, which will be described later, '' refers to AND circuits, OR circuits, etc. that have a large number of inputs. Cross over input 1,
The illustrated method is simplified by marking the intersection of the signal line of the signal to be input to the circuit and the input line with a circle mark.In 4IiI, the counter I is controlled by the reference clock φ of a predetermined period. Always driven. Here 1'7 tanta 30
An 8-bit ij is used.

, ANDIglAbout 31tj Every time all the pits of the counter (capital) become @1', that is, the count value becomes 255.
The pulse tube outputs (hereinafter referred to as this) pulse tT2 every time
55), in this embodiment, 1 of the counter I is used for processing for writing preset data and outputting P.
141st period (that is, the period from 0 to 255, hereinafter referred to as T) K is performed, and the timing of the start or end of the processing operation is determined from the pulse T255K generated every 111th period. That's what I do.

When the count value of the AND circuit 32#i counter (capital) is 7, a pulse is output for the first time, and after that every 16 counts K/
Outputs Z Luz. This pulse (hereinafter referred to as Tt) is used as a signal for counting the timing tone when the data which has been time-division multiplexed from the multiplexing circuit spreads to the total memory 23. Counter garden output Q4% Q@, Q@
The 3-bit signals A, @As, and Am taken out from the memory 23 are signals whose value changes every 16 counts of the counter I. and address commands for reading. Signal D output via decoder okara AND circuits 34-1 to 34-81-
A1~DA・ is the above 3-bit signal A6・Jk+”
The signal D A g which is the coded version of Am
= DA ailtWrite to memoffF
i One period T during which a read operation is performed.

It is output only during The operation of generating this signal DAI-DA. will be described in F1a.

FIG. 5 shows the preset circuit 5 shown in FIG. 1 in detail.

The preset selection switch circuit η shown in FIG.
Preset selection switch 22 &~22d to be turned on
And, the said 114! It consists of a circuit for storing data for a period T. That is, to explain the brisect selection switch 22aK, it is connected from one input of the switch 22Aij AND circuit 51 to the delay flipflop circuit 70 and the delay flipflop circuit 54 through the OR circuit section, and the output IllAND of the delay flipflop circuit 8 is connected. Input 1IIK from the circuit you through the OR circuit 53 tube to the relevant slow fritsfloakp(ro)ronu! The other input lIK of Mayu, Andshin Imei 51 and Shi is connected to the signal T25.
5 and a signal obtained by inverting the signal T255 by an inverter 55. Here, the delay flip-flop circuit 54Fi is supplied with the same clock as the clock φ (however, the #'12 phase clock φ嘗, φ嘗), and the signal applied to the OR circuit is delayed by one bit time. Output. Therefore, when the switch 22m is turned on and the signal T255 is output for the first time, the output of the delay flip circuit 7o rises to ``1'' after a delay of one bit time, and this output 11''
is AND circuit 52 and OR f! The signal T255 is returned to the input 111 of the delay flip-flop circuit 111 via T1lta9, and is held securely at the point where the signal T255 rises next. That is, the output of the delay flip-flop circuit that is turned on by switch 22a rises to ``1'' at the beginning of the subsequent first period T, and when the switch 22m is turned off, the output of the delay flip-flop circuit rises to ``1'' at the beginning of the first period T, and when the switch 22m is turned off, the output of the delay flip-flop circuit rises to ``1'' at the beginning of the subsequent first period T. At the end of T.
K so that it falls to 0-, and K changes so that the period T is a unit. The purpose of performing K in this way is to control the continuous writing of data in the memory 23 by at least one period T.
This is because it requires a period of The helmet and preset selection switches 22b to 22dK are constructed in the same manner as the preset selection switch 22m, so a description thereof will be omitted.

The output of each preset selection switch 22a-Z2dK corresponding delay flip-flop circuit is sent to the encoder 2.
7#c is added here and converted into a 2-bit signal.

Then, it is added to the memory 23 as an address designated by the storage section (No. 1) corresponding to the switch f' of the brisect selection switches 22a to 22d that is turned on.

Readout 7 convolution control & l (b) path 26 is similar to distribution resect selection switch IFIII 22 convolution switch 5
It is equipped with a circuit that memorizes 0 input. That is, Ill
! The signal (throw *"l") from the write switch 6 in the write/write control 1-path 26tg-y is passed through the OR circuit 57 from the AND circuit ts to the flip-flop circuit 58.
In addition, the output of the #delay flip-flop circuit 12'i58 is returned to the input 911K of the delay flip-flop circuit section via an AND circuit 56 and an OR circuit 57.
It has become. Also, and[g+Routei and and times w
The other input of I56 is configured to receive the signal T255 and a signal inverted by the signal T255 tube inverter, respectively. Therefore, the output of the delay flip-flop circuitry rises to ``l#'' at the start of the first period T after the write switch δ is turned on, and after the write switch 5 is turned off and the first period T. At the end of , it falls to '0'. That is, when the write switch 5 is turned on, the output tj@1- between the delay flip-flop circuits of at least one period T.
It is connected to the OD terminal of the previous section, and inhibits the output of the memory during the period when it is standing on the filjl, that is, the period during which the write operation is executed. In addition, the output of the delay flip-flop circuit group is added to the power of the NAND circuit section. The NAND circuit 60 receives the pulse T+@ (pulse output every 16 counts of clock φ) from the other side. Therefore, the period T during which the output of the NAND II860#i delay flip-flop circuit rises to 1 =
.

@O"K falls only when the pulse 'I'ss is generated in the interval. The output of this NAND circuit ω is used to switch the memory 23 between the write state and the read state lIK. That is, the output of the NAND circuit ω The output @1" puts the memory 23 in the read state, and the output @o"ij memory 2
3 is the writing state.

Even when the write switch 5 is turned on, the output of the NAND l860 does not uniformly become @“O” and the pulse T
, ``O-VC'' is performed only when ``@'' occurs because the data sent from the multiplexing circuit is stable.
This is because the data is written into the data storage after reaching IK.

As mentioned above, the memory 23ij stores the operation amount t of each operator 1-1 to 1-8 of the musical tone control operator circuit 1. In this embodiment, these eight operation amounts are stored in a time-sharing manner. K is asking him to put it into the pot and come up with another plan. That is, the eight data # (one data F14 bits) held in the musical tone control register 4 are multiplexed in the Il path 24.
The 3-bit signals A, ・At・A
Therefore, one signal is sequentially outputted every 16 counts of the clock φ. Then, in the storage location specified by the output signal of the encoder n in the memory 23#-i, the data sequentially outputted as the 3-bit signals A...A1...Am dynamic address signals are transferred to the NAND. Every time a pulse is applied from the circuit ω, the 1/IA order is written, and when the reverse KW is read out, the 3-bit signal A... Using A1eA as a dynamic address signal, eight data are sequentially read out and added to the tone control register 4.

Incidentally, the output signal of the encoder n is used as an address signal for the memory B, and is also added to the timing signal generation circuit 2B (Figure llE4) to generate the signals DAI to DA.
・f: Used to generate. That is, here, the change tube of the output signal of the encoder n is detected and it is output that any one of 224 is input to the brisect selection switch 22g, and all signals DA1 to DA are generated from this trap and the musical tone control register 4 is output. The output signal tube of encoder n is used to switch from the output of the output wind tone control operator circuit 1 (manual operation data) to the output of memory O (preset data). Based on this tube No. 4 FIJK, encoder 27 The 2-bit signal (signal indicating which of the preset selection switches 22a to Z2d is turned on) output from the
First, it participates in the award detection cycle 836. Change detection circuit 35#i
In the input 4x change tube/detection circuit, an exclusive OR circuit and I are provided corresponding to each bit.
A signal delayed by one bit time is added to each signal. However, if there is a change in the signal of each bit, one pulse will be output from the exclusive OR circuit 37 or Fi:n, and the two exclusive OR circuits and that output will be OR. It is output from the change detection circuit A through the circuit 40. If any of the preset selection switches 3 to 22d is operated, the signal of at least one of the two bit q encoders 27f) will change, so when it is operated, a pulse will always be generated from the OR circuit. One will be output. And this (Russhu Oaro road 41 tube through delay flip 70 Tubu shuan road 42
In addition, the force of the delay flip-flop circuit 42 is returned to its input through the AND@@@43 and OR circuit 41, and the signal T2S5 received is inverted at the input node 44. is added to one side of the AND circuit 43. Therefore, when a pulse i is generated from the beginning of the period T (output #'i of the preset selection switch circuit n), this pulse I (pulse) is also generated at the beginning of the period T. During the first agonizing period T00 (which is generated synchronously at the start), the delay processing frikbuflomb circuit 4
Ant from 2.

Delayed again after circuit 43 or circuit j1341 7 +
7 flop (ro) loop back to road 42 *-kj-
1= is maintained.

The AND circuit 45Fi inputs the signal of this loop and the gs signal TIl, and inputs the signal 4'! during which the signal ``'']'' is held in the loop. Pass through fTs-. Decoder 33
decodes the 3-bit signal Ao·At'Aa, and sends the decoded signal to AND circuits 31-] to 3.
Add each to 4-8. These AND circuit keys-1 to 34
The other input of -8 is configured so that the output of the AND circuit 柘is added to it. Therefore, it is possible for the decoder output u1 to pass through the ANDRO paths 34-1 to 34-8 only during the active period To. Here, the output of the decoder is D
A.

However, since the switching speed is every 16 counts of clock φ, DAl is switched sequentially from DAl to DA- in half the period T (127 clock 7 counts of clock φ).
It will go around until As. Therefore, the period in which the AND circuits 34 to 1 to 8 are in the '#IbfPF, 6j function (i.e., @4 in the first pigeon period Tel)
The output operation of 9 D A t - D A @ is repeated twice.

Signals DA, -DA- sequentially output from the AND circuits 34-1 to 34-8 are applied to the tone control register 4.

A detailed example of the musical tone control register 4 is shown in FIG.

The musical sound control register 4 includes the sound collection control operators 1-1 to]
The registers 4-1 to 4-8 corresponding to the registers 4-1 to 4-8 are provided with registers 4-3 to 4-7 (not shown), but they are all configured in the same way, so the 611th! In the example of J, only one register 4-1 is shown in detail.

The register 4-1 shown in FIG. 6 is for storing data regarding the flute 16' series tones. That is,
Register 4-] is the AND circuit 71 for the 4-bit manual operation data sent from the Tsumugi musical tone system@operator 1-1.
~74 respectively and send from % and 1 memory n 4
AND Ip circuits 75 to 78
Each person uses their own manpower. In this case, in this embodiment, in order to give priority to the manual operation data output from the musical tone control operator circuit 1, the musical tone control operator circuit 1 (2) responds to the operation trap of the operator 1-1. AND circuit 71
-74 and AND circuits 75-78. Operator operation detection circuit &3 is this AND circuit 71
-74 and AND circuits 75-78 are used to detect the operating tubes of musical tone control operators 1-1. That is, as shown in the figure, the operator operation detection path 83 is an OR circuit to which 4-bit data from the musical tone control operators 1-1p, etc. is input, and a delayed flip-flop circuit to which the output of the OR circuit is applied. Road 8! And the delay 7 lip flop circuit has one Q output, and the other 7j outputs from the O and OR circuits.
The output between the AND circuits is directly applied to the external power inputs of the AND circuits 71 to 74, and to the external power inputs of the ML AND circuits 75 to 78 via an inverter 87i, respectively. It's a trap for you to join. Conversely, when the musical tone control operator 1-1 is not operated, the output of the operator operation detection circuit & is "0",
From this, the AND circuits 75-78 become operational, and the output data from the memory okara is taken out from the AND circuits 75-78. In addition, the musical tone control operator】−
1 is off state 1Dt4-bit data is all operated from @O''), a 1 m pulse is output from the detection circuit at the rising edge.
becomes operable, and the data from the musical tone control operator 1-1 is transmitted from the AND circuits 71 to 74. That is, data from the memo is normally taken out, but when the musical tone control operator 1-1 is fully operated, the data from the Fi operator 1-1 is preferentially extracted. A priority circuit is set up. The outputs of AND circuits 71 and 75.7ji and 76.73 and n174 and flowers are taken out through OR circuits 79, (source), and 81.82? It's a trap to get caught.

In the register 4-I, the memory circuit 88 is for storing and holding the 4-bit data sent from the OR circuits 79 to 82, and the circuit area for storing and holding the data corresponding to each bit. are provided for each. OR circuit 79
To explain the circuit 89 to which the output of the OR circuit 4 is added, the output of the OR circuit 4 is applied to the delay flip-flop circuit 96 via the AND circuit and the OR circuit 94, and the output of the delay flip-flop circuit 96 is connected to the AND circuit and the OR circuit 94. Input 1Il of delay flip-flop circuit through
l#Icji! The signal D1 and the output signal of the operator operation detection (b) route are sent directly to the other input 111 of the AND route via the OR circuit 96 pipe. 1 inverter 97Vr to the other input 111 of the AND circuit. The circuits related to the other pins are constructed in the same manner as the circuits described above. Therefore, when the musical tone control operator 1-1 is operated, the AND circuit becomes operable, and at this time, the data from the musical tone control operator 1-1 becomes OR as described above. Since the data from the musical tone control operator 1-1 is outputted from the 11 paths 79 to 82, it is applied to the OR circuit 94 via the AND circuit 94, and the data is sent from the delay 7 ripple loop circuit 94f to the AND circuit 9 and the OR circuit 94f. This data is stored in a loop that returns to the delay flip-flop circuit 95 via the delay flip-flop circuit 95. Furthermore, when the preset selection switch 22 m - 22 d is turned on in the preset selection switch circuit η, the signal DAt is generated as described above, so that the AND i path illusion can be operated. Output #'i of detection circuit &
-o' remains, so the data from the memo is added to the AND circuit via OR circuits 79-82. As mentioned above, the data in the memory okara is data related to each tone and effect that is time-division multiplexed, but the AND circuit g3 is used when the brisset data related to the full) 16' series tone is being read out. Since the operation is enabled by the signal D A +, only the brisect data regarding the timbre of the flute 16' series passes through the AND circuit Ayu. The data that has passed through the AND circuit is added to the OR path 94, and is stored in a loop that returns from the operation circuit to the AND circuit and back to the OR circuit 96 via the AND circuit and OR path 94 pipe. Furthermore, when the brisect data from the memory 2 is stored, the output of the error detection circuit 8 becomes 11m when the musical tone control operator 1-1f is turned off once and operated again). The memory contents of the circuit section can be rewritten to the data from the sound collection tiIllill operator]-1.

As mentioned above, register 4- corresponds to the flute 16' series tone.
When I explained about IK, my friend explained that registers 4-2 to 4-8 (registers 4-3 to 4-7Fi) correspond to other tones and effects.
(not shown) are also uniformly configured. Therefore, when the musical tone control operation and the explosions 1-1 to 1-8 are operated, the register 4-
Manual operation data corresponding to the amount of operation is stored separately in 1 to 4-8, and the timbre, effects, etc. of the generated musical tones are controlled in accordance with the data. Furthermore, when the preset selection switch 22m-ρd is turned on, preset data is sequentially read out from the memory B. These data are transferred to each corresponding register 4-D by the signals DAI to D A s.
1 to 4-8 are stored in the ninth order. Then, the timbre and effect of the musical tone are controlled according to the stored data number. In addition, if any of the musical tone control operators 1-1 to 1-8 is operated while the musical tone is being controlled according to preset data from the memory field, the control corresponding to the operated operator The memory of only the registered register (any one of 4-1 to 4-8) is rewritten to manual operation data.Therefore, the preset data read from memory B is changed.

Same, 6th Fj! For JK, the operator operation detection circuit &
1IFi thread sound control i4 control unit 1-1 (1-2 to 1
-8) outputs a detection signal only when 1M (4 bits of data is manipulated by all 10 bits), so
Register 4-1 (4-2 to 4-83
1-2 to 1-8) to update the manual operation data Kl by the relevant operators 1-1jl-2 to 1-8)
Although it is necessary to perform the operation again after turning f once into the off state 11K, if this is done, for example, as shown in FIG. That is, the operator operation detection circuit 100 shown by @'IwJK operates four exclusive OR circuits, 101 to 101, in response to 4 bits of data added from the musical tone control operators 1-] (1-2 to 1-8).
]04, the signal of each input terminal Ktj of these exclusive ORs U*lo1 to 104 is added as is, and the g! of each bit of n4Kki is applied to each other. Add 4g of delayed scratches to delay flip-flops 105 to 108 to No. i, and create the output tube OR circuit 10 of exclusive OR circuits 101 to 1G4.
It's like 9 starts all together, and it's also 6. Therefore, if il of one of the input manual operation data j4 bits changes, a pulse is output from the OR circuit 109, and the stored contents of the memory circuit section are rewritten to that manual operation data.

Therefore, musical tone control operators 1-1 (1-2 to 1-8)
)1 Register 4-1 t without returning the OFF state NIK
4-2 to 4-8) can be changed.

〔Effect of the invention〕

According to Kotsu K. and Jin's Hakko Ryo explained above, since the operation status of each preset operator is visually displayed, the performer can easily and accurately determine the timbre and volume of the preset musical tone. This can be used to improve the performance operability of electronic musical instruments.

[Brief explanation of drawings]

Fig. 1 is a block diagram schematically showing an example of an electronic musical instrument to which the present invention is applied, Fig. 2 is a block diagram showing a detailed example of the musical sound side a operator and display section of Fig. 1, wL3F
kJ#i 3rd FkJ#i A time wI showing a detailed example of the control circuit
Fig. w4 is a block diagram showing a detailed example of the timing signal generation circuit shown in Fig. 1, w45 (2) #i is a block diagram showing a detailed example of the Blinat circuit shown in Fig. 1, and Fig. 6 is a block diagram showing a detailed example of the timing signal generation circuit shown in Fig. 1. Partially omitted block diagram showing detailed example of side register, j
ll! Figure 7 is a block diagram showing a modified example of the operator operation detection circuit for the sixth button.
1-1 to 1-8... electric sound control operators, 4.
・・Musical tone open register, 5 ・・Presect circuit, 14
...Tone circuit, Add...Display section, ρ...Preset selection switch circuit, Otsu...Memo'J (RAM
), 2'x-...Writing switch, Song...Starting/
Write-only #circuit. →Width VjA covered J6 small

Claims (1)

[Scope of Claims] A timbre setting means for selecting and setting the volume of a musical tone when a timbre is selected, a memory means capable of writing and reading, and a method relating to the timbre selected and set by the timbre setting means and its volume. a writing means for writing data into the storage means; a display means provided corresponding to the tone setting means for visually displaying each tone and its volume; A musical tone controlling device for an electronic musical instrument, comprising a control means for displaying the contents of the retrieved data on the display means and for controlling the timbre and tone t of a generated musical tone based on the # data. 1111111111