JPS636879B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a control device for an electronic musical instrument such as a music synthesizer.

[Prior art]

Traditionally, music synthesizers use envelope generators, VCOs (voltage controlled oscillators),
You can preset the values of control signals such as VCF (voltage control filter) and VCA (voltage control amplifier), and then control things based on these preset values, or modify the preset values to suit your own preferences during performance. The ones used are known.

For example, JP-A-54-62814 and JP-A-53-
Publication No. 37734 discloses such a technique.

However, what is used as memory is
This is a memory circuit using ROM or resistance division.
After converting the output of a ROM, etc. to an analog voltage signal, the voltage is adjusted in an analog manner using a variable resistor for fine adjustment. In addition, since there is no display device, it is difficult to check the set values using presets.

In addition, it is possible to record multiple sets of information such as tones created by the performer in memory, read out and preset the desired one with a simple operation such as one touch, and then change the preset value by the desired amount. This was also difficult to do in the past.

[Object of the present invention]

The present invention was made against the background of the above-mentioned circumstances, and allows users to modify and use the preset control signal values as necessary, and to also modify the preset values themselves. When changed as desired, the contents can be confirmed visually, and the information of the switches on the panel that you have set in the memory means, and therefore the information that determines the tone etc., can be stored as multiple sets of preset values. An object of the present invention is to provide a control device for an electronic musical instrument that allows settings to be made to improve performance effects.

[Summary of the invention]

Therefore, in the present invention, a plurality of sets of up/down counting means are provided corresponding to separate circuit means of an electronic musical instrument, and the up/down counting means are caused to perform up and down counting operations by an instruction means as desired. The control signal is generated and outputted, and each up/down count means is provided with a display means so that the setting contents can be checked visually. ,
By making it possible to exchange data with the multiple sets of up/down count means mentioned above, it is possible to store multiple pieces of information that determines the timbre, etc. created by the performer, and read it out with a simple operation, for example, with a single touch. Moreover, it is possible to obtain a desired control signal by finely adjusting the contents.In addition, it is possible to obtain a desired control signal by finely adjusting the contents. When the corresponding information is preset, the display status of the plural sets of display means is changed from the respective count values that were displayed up to then to display the respective preset values, thereby further improving operability. The main point is that we have tried to achieve the following.

[Embodiment] An embodiment in which the present invention is applied to a music synthesizer will be described below with reference to the drawings. In FIG. 1, a keyboard 1 is provided with a large number of keys arranged in pitch order, and when each key is turned on, two types of voltage signals are generated from each key: a trigger voltage and a keyboard voltage that differs for each key.
These voltage signals are then applied to the musical tone generating circuit 2.
ADSR (envelope generator) 3, VCO
(Voltage controlled oscillator) 4, VCF (voltage controlled filter)
5 to drive each circuit. Furthermore, the output signal of ADSR3 is the above VCF5.
and VCA (voltage controlled oscillator) 6, respectively. Also, the output of VCO4 is given to VCF5, and the output of VCF5 is given to VCA6, and so on.
The output of the VCA 6 is emitted from the speaker as a musical tone.

In this embodiment, signals controlling the attack, decay, sustain, and release levels or times of ADSR3, and
Setting of each control signal of VCO4, VCF5, and VCA6 is performed by respective setting operations of correspondingly provided switch circuits _SW1 to _SW0 . That is, each switch circuit SW ₁ ~
The voltage signals Vo ₁ to _{Vo o} output from SW _o are the control signals. In addition, the switch circuit
SW ₁ to _{SW o} have the same configuration, and details will be explained with reference to FIG. 2.

In addition, in this embodiment, in preparation for live performance, the control signals set by the above-mentioned switch circuits SW ₁ to _{SW o} are stored in, for example, 8 sets of memories.
The control signals are stored in advance in any one of the memories _M1 to _M8 , and the control signals stored in each of the memories _M1 to _M8 can be arbitrarily read and used during performance. For this purpose, on the panel near keyboard 1, there is a button 8 for selecting and specifying memories M ₁ to M ₈ .
A switch and a read/write control switch (both not shown) are provided. The output of each designated switch is input to the program control circuit 7, and this program control circuit 7 is connected to the memory.
Address signal AD and switch circuit to select _M1 to _M8 and further set each address in each memory
Preset signals PR, which will be described later, are output for SW ₁ to SW _o , respectively.

Therefore, the contents of the control signals read from any one of the memories _M1 to _M8 and preset to the corresponding switch circuits _SW1 to _SWo are controlled by each switch operation of each switch circuit _SW1 to _SWo . It can also be changed to create a new control signal.

Next, with reference to FIGS. 2 and 3, the detailed configuration of the switch circuits SW ₁ to SW _o , and each switch circuit
The detailed configuration of a display device that displays the contents of the control signals obtained by SW ₁ to SW _o will be explained.
The switch circuit SW shown in FIG. 2 is representative of one of the switch circuits SW ₁ to _{SW o} shown in FIG. 1. The switch circuit SW has two contacts A and B on the output side, and a common contact C.
A two-contact switch 10 is provided, which is grounded, and the two-contact switch 10 is configured so that neither of the contacts A and B are normally connected. Further, contact A is connected to the power supply terminal of voltage Vcc via resistor _R1 , and is also connected to the first input terminal of AND gate 12 via inverter 11. On the other hand, the contact B is connected to the power supply terminal via the resistor R ₂ and also to the first input terminal of the AND gate 14 via the inverter 13 . Furthermore, a low frequency clock CP is input to each of the second input terminals of the AND gates 12 and 14. And gate 12,
Each of the 14 outputs (clock CP) is
Down count input terminal D of down counter 15
Alternatively, it is input to the up count input terminal U and is counted down or counted up.

The up/down counter 15 further receives a preset signal from the program control circuit 7.
When PR is given, the data Di stored in the memory M ₁ to _{M 8} (i.e., corresponding to the analog quantity control signals Vo ₁ to Vo _o described above) is transferred from any of the corresponding memories M ₁ to M ₈ digital data)
The configuration is such that the data is transferred and preset. Therefore, when the up/down counter 15 to which the predetermined data has been preset in this way is turned on to either the A or B side of the two-contact switch 10, the input clock will be turned on.
It is configured to perform an operation of down-counting or up-counting the CP with respect to the predetermined data. Of course, the above up/down counter 1
Without performing the above-mentioned preset operations from memories _M1 to _M8 for
It is also possible to turn on either contact A or B and perform a down-count operation or an up-count operation from the count value of the up/down counter 15 at that time.

The count data of up/down counter 15 is
The DA converter 16 converts the signal into an analog control signal Vo (signal corresponding to any one of Vo ₁ to _{Vo o} ), which is applied to the musical tone generation circuit 2 as the corresponding control signal. Further, when any one of the memories _M1 to _M8 is addressed by the program control circuit 7, the count value data of the up/down counter 15 is stored in the memory as data Do. . Furthermore, the above count value data is transmitted to the display control section 18 in the display device 17.
After being converted into display data, it is displayed on the display unit 19.

FIG. 3 shows a specific configuration of the display unit 19. For example, when the up/down counter 15 has a 5-bit configuration, a bar-shaped display unit 20 (for example, It consists of a liquid crystal display (liquid crystal display). From the bottom end to the top end of the display body 20, numbers 0 to 31 indicating the contents of the count value data are printed so that visual confirmation can be performed using a scale. In the illustrated example, since the count value data is 9, the display body 20 is lit from the lowest position of 0 to the position of 9. In addition, the display body 20 is of course one for each switch circuit SW ₁ to SW _o , a total of n
For example, it is installed in a place near the keyboard 1 where it can be easily seen.

Next, the operation of the above embodiment will be explained along with an example of its operation. Before starting the performance, first, VCO4, VCF5,
Switch circuit SW ₁ to _{SW o} to set various control signals Vo ₁ to _{Vo o} for VCA6, ADSR3, etc.
This is done by For example, switch circuit _SW1 is ADSR3
If the control signal is for setting the control signal for the attack time of the switch circuit _SW1 , visually check the contents of the display 20 of the display unit 19 displaying the current count value data of the up/down counter 15 in the switch circuit SW1. If the displayed value is not the desired value, for example, if the displayed value is smaller than the desired value, the two-contact switch 10 is turned on to the contact B side. When contact B is closed, the output of inverter 13 becomes "1" at the binary logic level, AND gate 14 is opened (note, AND gate 12 is closed), and clock pulse CP is
begins to be input to the up count input terminal U of the up/down counter 15 via the AND gate 14. This results in an up/down counter of 15
The count value data begins to increase, and the display value on the display 20 also begins to increase (rise) accordingly. Therefore, the increasing display value is visually observed, and the two-contact switch 10 is turned off at the same time as the display value matches the desired value. Inverter 1
3 becomes "0", the AND gate 14 closes, and the up/down counter 15 stops counting up. and DA converter 1
At this time, control signal Vo ₁ of the value corresponding to the above-mentioned display value, that is, the count value data, is output from 6, and this control signal Vo ₁ is
It is set as a control signal for the attack time of ADSR3.

On the other hand, if the value displayed on the display 20 is larger than the desired value, the two-contact switch 10 is turned on to the contact A side to open the AND gate 12, and the clock CP is input to the up/down counter 15 via the AND gate 12. is input to the down-count input terminal D of the down-count input terminal D, and the down-count operation is executed. As a result, the displayed value begins to decrease, so when the callus is visually confirmed to have reached the desired value, the two-contact switch 10 is turned off. The control signal Vo ₁ corresponding to the displayed value at this time is ADSR.
This is the setting value for the attack time of No. 3.

Once the setting operations for each of the switch circuits SW ₁ to SW _o are completed as described above, performance under the control of each of the set control signals Vo ₁ to _{Vo o} can be performed by key operations on the keyboard 1.

Next, as described above, each switch circuit SW ₁ to
The data indicating the control signals Vo ₁ to _{Vo o} set by the operation of the switch 10 of SW _o , that is, the count value data of the up/down counter 15, is transferred to one of the memories M ₁ to _{M 8} and stored. This section explains each setting. That is, if you want to store the above count value data in the memory _M1 , for example, turn on the switch (provided near the keyboard 1) that specifies this memory _M1 , and also write the data using the read/write control switch. Give instructions. As a result, from the program control circuit 7,
An address signal AD designating the memory _M1 is output, and each data (Do) from each switch circuit _SW1 to _SW0 is stored in a predetermined area in the memory _M1 .

Similarly, count value data indicating the control signals Vo ₁ -Vo _o set by operating the switches 10 in the respective switch circuits SW ₁ -SW _o can be set in the other memories M ₂ -M ₈ as well.

On the other hand, each count value data set in any of the above memories _M1 to _M8 is read out, and each switch circuit _SW1
~ When presetting to _{SW o} , e.g.
The count value data set in _M1 is sent to each switch circuit.
When presetting to SW ₁ to _{SW o} , the switch specifying the memory M ₁ mentioned above is turned on, and a read command is given by the read/write control switch. As a result, from the program control circuit 7, the memory M ₁
At the same time, a preset signal PR is sent to each switch circuit SW ₁ to SW _o . . Therefore, the data read from each area of memory _M1 is sent to each corresponding switch circuit _SW1.
~ Data in up/down counter 15 in SW _o
It will be preset as Di.

Therefore, control signals Vo _{1 -Vo o} based on the data transferred from the memory M ₁ are output from each switch circuit SW 1 -SW _o , and the tone generation circuit 2
It will be supplied to each circuit within.

At the same time, the data transferred from the memory _M1 is displayed on the display 20 of the display unit 19 and can be visually confirmed.

Then, by operating the switch 10, a part or all of the data transferred from the memories _M1 to _M8 can be modified according to the user's preference. That is, in that case, the data preset in the up/down counter 15 is corrected by either increasing or decreasing the data by operating the switch 10.

It should be noted that the present invention is not limited to the above-mentioned embodiments; for example, the counting capacity of the up/down counter 15 and the corresponding display capacity of the display body 20 may be arbitrary. Further, the display body may be not only a liquid crystal display element but also a display element such as a light emitting diode, and the display content may be either analog or digital.

Further, in the above embodiment, since the up/down counter 15 is used, presetting and correction can be easily performed, and changes and troubles are minimized. In addition, the output of the up/down counter 15 is converted to an analog signal by the DA converter 16 and used as a control signal. However, in the case of a digitally controlled music synthesizer, the output of the counter 15 is directly supplied to the musical tone generation circuit 2. Just do it like this.

In addition, the present invention can be applied not only to music synthesizers but also to various data input devices such as other electronic musical instruments such as electronic organs.

〔effect〕

As explained above, the present invention allows a plurality of sets of up/down counting means to be operated by an instruction means to perform up/down counting operations, thereby obtaining control signals for respective circuit means of an electronic musical instrument. , a memory means having a plurality of areas capable of storing the contents of the plurality of sets of up/down count means is provided, and data can be exchanged between the memory means and the plurality of sets of up/down count means, and control is performed. It is now possible to store multiple signals in memory means and read and use them with simple operations, and also to store multiple sets of up/down signals.
When the information corresponding to the stored contents of the specific area of the memory means is preset in the down-counting means, the display states of the plurality of display means are switched from the respective count values that had been displayed until then, and the respective preset values are set. is displayed.

Therefore, compared to conventional input means such as a volume switch or a slide switch, it is only necessary to provide an operation switch with an extremely simple mechanism, and mechanical deterioration is slowed, thereby reducing the number of failures. Furthermore, during live performances, etc., the timbre of the output sound can be changed with a simple operation according to preference, increasing the performance effect. Furthermore, the memory means can be divided into a plurality of areas, and arbitrary control information can be preset in each of the plurality of up/down count means, allowing for even more varied performances. , when multiple up/down count means are preset, the preset contents will be displayed on the corresponding multiple display means instead of the previous count value, so what value is set? It is possible to check very easily whether the data has been changed, and the operability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram of an embodiment in which the present invention is applied to a music synthesizer, FIG. 2 is a detailed circuit diagram of the main part, and FIG. 3 is a diagram showing the configuration of a display section 19. 1... Keyboard, 3... Envelope generator, 4... VCO, 5... VCF, 6...
VCA, 7...Program control circuit, SW (SW ₁ ~
SW _o )...Switch circuit, _M1 to _M8 ...Memory,
Vo (Vo ₁ ~ _{Vo o} )...Control signal, 10...
... 2-contact switch, 15 ... Up/down counter, 16 ... DA converter, 17 ... Display device,
20...Display body.

Claims (1)

[Scope of Claims] 1. A plurality of sets of up/down counting means; an instruction means for instructing each of the plurality of sets of up/down counting means to perform an up-counting operation or a down-counting operation; a sending means for sending each count output of the up/down counting means as a control signal to separate circuit means associated with each other in advance of the electronic musical instrument; A plurality of sets of display means for displaying the count values of each up/down count means, and an area where the respective count values of the plurality of sets of up/down count means can be transferred and written and the contents thereof can be retained. A memory means having a plurality of up/down count means, and a specific area of this memory means is specified and the counting contents of the plurality of sets of up/down counting means are transferred and stored in that specific area, or this memory means control means for selectively reading out the memory contents of a specific area of the apparatus and presetting information corresponding to the plurality of sets of up/down count means;
When the down-counting means is preset with information corresponding to the stored contents of the specific area of the memory means, the display states of the plurality of sets of display means are switched from the respective count values that had been displayed up until then, and the A control device for an electronic musical instrument, comprising: means for displaying a preset value; and a control device for an electronic musical instrument.