JPH026477Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electronic musical instrument, and more particularly to the ability to arbitrarily select effects using a timbre selection switch.

Generally, electronic musical instruments are equipped with a plurality of tone color selection switches for selecting and setting the generated musical tone to a predetermined tone color. FIG. 1 is a diagram showing an example of the above-mentioned timbre selection switch, in which 1 is a vocal selection switch, 2 is a violin selection switch, 3 is a piano selection switch, 4 is a trumpet selection switch, and 5 is a clarinet selection switch. . By selecting and turning on any of these selection switches 1 to 5, a predetermined timbre control signal TS is sent from the timbre setting circuit 6 to a musical tone forming circuit (not shown) corresponding to the turned on selection switch. The tone color of the musical tone signal supplied and generated from the musical tone forming circuit is set to a tone color corresponding to the selection switch turned on. Additionally, electronic musical instruments are equipped with a function to add various effects such as an ensemble effect (symphonic chorus effect) and a vibrato effect to the generated musical tones, and an effect selection switch is provided to select these effects. It is something.

For this reason, electronic musical instruments are equipped with a large number of tone selection switches and effect selection switches, which has the disadvantage of increasing the number of switches to an extremely large number. If this is done using a switch, there is a problem in that beginners cannot easily understand the correspondence between tones and effects, and are unable to select effects that are suitable for the tones.

Therefore, in consideration of such problems, a predetermined effect (an effect suitable for the tone of the switch) is preset for the timbre selection switch, and the effect can be selected at the same time by operating the timbre selection switch. is considered. To explain this in more detail with respect to the example shown in FIG. 1, an ensemble effect is preset in the vocal selection switch 1, and by turning on the switch 1, the timbre control signal TS indicating the vocal sound is output from the timbre setting circuit 6. An effect control signal SYM indicating that an ensemble effect is to be applied is output. The musical tone thus generated is set to a vocal tone and has an ensemble effect added to it. Similarly, a vibrato effect and an attack effect (percussive effect) are preset in violin selection switch 2 and piano selection switch 3, respectively, and by turning on switch 2 or 3, a tone control signal indicating a violin sound is sent from circuit 6.
An effect control signal VB indicating that TS and a vibrato effect are to be applied, or a timbre control signal TS indicating a piano sound and an effect control signal AT indicating that an attack effect is to be applied are respectively output. As a result, if the generated musical tone is a violin sound, a vibrato effect is automatically added,
Also, if it is a piano sound, an attack effect will be automatically added. Therefore, with this configuration, the total number of switches can be reduced, and even beginners can easily select an effect suitable for the tone.

By the way, in the case of the electronic musical instrument configured as described above, although the above-mentioned excellent effects can be obtained, there is no particular set of suitable effects, and it is necessary to select a tone that can be given an arbitrary effect. As for the selection switch, the effect is not specially preset, so
A problem arises in that no effect can be applied to the musical tone of the switch. That is, in the case of the example shown in FIG. 1, no specific effects are preset to the trumpet selection switch 4 and clarinet selection switch 5 (the trumpet and clarinet sounds have a specific combined effect, unlike the vocal and violin sounds). It is possible to add an ensemble effect, a vibrato effect, or no effect at all as needed, so it is not possible to preset a specific effect like a vocal sound or violin sound. Therefore, even if the switch 4 or 5 is turned on, only the tone color is selected, and no effect is selected. Therefore, it is not possible to add ensemble effects or vibrato effects to the timbre of trumpet or clarinet sounds, and in order to add these effects, a separate switch must be installed to specify various effects. This is not desirable as the number of switches increases.

This idea was created in view of the above points, and its purpose was to create an electronic musical instrument that has a simple structure and allows for the selection of tones and effects at will, without the need for a special switch for selecting effects. It is about providing. To achieve this purpose, this invention sets priorities for tone selection for multiple selection switches, each of which is assigned a predetermined tone and effect, and when a selection switch is turned on, the on switch with the highest priority is selected. At the same time, the selection switch with a lower priority than the on switch no longer functions for tone selection, so the switch with a lower priority is used for effect selection. That's what I do. That is, according to this invention, at least the selection switches other than the selection switch with the highest priority are preset with a tone and a predetermined effect, and among the selection switches turned on at the same time, the selection switch with the highest priority is preset. The highest on switch is used for tone selection, and the other on switches are used for effect selection. This will be explained in detail below using examples.

FIG. 2 is a block diagram showing an embodiment of an electronic musical instrument according to this invention. In the figure, 10 is a keyboard circuit, and this keyboard circuit 10 corresponds to each key provided on the keyboard section of the electronic musical instrument. It has a plurality of key switches, and when a key is pressed and the corresponding key switch is turned on, it outputs key information KC indicating the pressed key. This key information KC is supplied to the tone generator 11, and the tone generator 11 forms a musical tone signal P having a pitch corresponding to the pressed key. This musical tone signal P is sent to a sound system 15 via an opening/closing circuit 12, a tone processing circuit 13, and a gate circuit 14, and this sound system 15 generates a musical tone corresponding to the pressed key.

The timbre processing circuit 13 is a timbre effect setting circuit 16.
It is controlled by the timbre control signal TS output from. This timbre control signal TS is applied to a timbre selection switch, for example, a vocal selection switch 17, a violin selection switch 18, a piano selection switch 19,
The signal is output from the circuit 16 in response to a single switch which is turned on among the trumpet selection switch 20 and the clarinet selection switch 21 and which is selected according to a predetermined priority order. Therefore, when any of the timbre selection switches 17 to 21 is turned on, the timbre control signal TS corresponding to the timbre of the turned-on selection switch is supplied to the timbre processing circuit 13. The received musical tone signal P is shaped into a tone corresponding to the content of the tone control signal TS.

Further, the vocal selection switch 17 is preset with a function for applying an ensemble effect (this is displayed as shown in FIG. 3), and when this selection switch 17 is turned on, the tone effect setting circuit 16 is preset. An ensemble effect control signal SYM is output from. Furthermore, the violin selection switch 18 is preset with a function for imparting a vibrato effect (this is the function of the third
When the violin selection switch 18 is turned on (displayed as shown in the figure), the timbre effect setting circuit 16 outputs a vibrato effect control signal VB. In addition, the piano selection switch 19 is preset with a function for adding an attack effect (percussive effect) to musical tones (this is the third function).
(displayed as shown in the figure), when this piano selection switch 19 is turned on, the tone effect setting circuit 1
6 outputs an attack effect control signal AT.

22 is a vibrato modulation signal generator, and this vibrato modulation signal generator 22 generates a vibrato modulation signal W for imparting a vibrato effect to a musical tone by periodically changing the frequency of the musical tone signal.
This modulated signal W is input to the tone generator 11 via the gate circuit 23. A vibrato effect control signal VB is supplied to the control terminal EM of the gate circuit 23.
3 is opened, a vibrato modulation signal W is sent to the tone generator 11, and the frequency of the musical tone signal P output from the tone generator 11 is changed to give a certain vibrato effect to the musical tone signal P.

25 is an envelope generator, and keyboard circuit 1
It inputs the key-on signal KON that is output when a key is pressed from 0 and outputs the envelope signal ENV. The opening/closing circuit 12 is controlled to open/close using this envelope signal ENV, and an amplitude envelope corresponding to the key operation is given to the musical tone signal P. In this case, when the attack effect control signal AT supplied from the tone effect setting circuit 16 is "1", the envelope generator 25 generates a percussive envelope signal that rises when the key is pressed and immediately falls.
ENV is output, and when the signal AT is "0", a continuous envelope signal ENV that continues at a constant level while the key is pressed is output.

Reference numeral 26 denotes an ensemble effect circuit, which is supplied with the musical tone signal output from the timbre processing circuit 13 and which periodically modulates the phase of this musical tone signal to impart an ensemble effect. The musical tone signal is sent to the gate circuit 27
is supplied to the sound system 15 via. In this case, the ensemble effect control signal SYM from the timbre effect setting circuit 16 is input to the control terminal EN of the gate circuit 14 via the inversion circuit 28.
This ensemble effect control signal SYM is also supplied to the control terminal EN of the gate circuit 27.
Therefore, when the ensemble effect control signal SYM of "1" is output from the timbre effect setting circuit 16, the gate circuit 14 is closed and the gate circuit 27 is opened, so that the musical tone signal from the timbre processing circuit 13 is passed through the ensemble effect circuit 26. Sound system through 15
Since the musical tones are sent out, an ensemble effect is imparted to the musical tones produced. Further, when the ensemble effect control signal SYM becomes "0", the gate circuit 27 is closed and the gate circuit 14 is opened, so that no ensemble effect is applied to the musical tones that are produced.

The tone effect setting circuit 16 is configured as shown in FIG. 4, for example, and each selection switch 17
The signal “1” output from ~21 is the tone control signal
Signal line 3 that transmits to the tone processing circuit 13 as TS
0 to 34, a priority circuit 35 provided to each of the signal lines 30 to 34, and an effect control signal generation circuit 36. The priority circuit 35 is connected to each signal line 30.
- 34, and one input is connected to the output side of each tone selection switch 17-21, respectively, and AND circuits 35a-35e, and each AND circuit 35a
-35e, and an AND circuit 35a connected to the output sides of the lower tone color selection switches 20 to 17. It is composed of OR circuits 35k to 35n that supply to the inverting circuits 35f to 35i of the circuits 35d to 35d. This priority circuit 35 sets priorities according to the order of clarinet selection switch 21, trumpet selection switch 20, piano selection switch 19, violin selection switch 18, and vocal selection switch 17. Therefore, the timbre control signals corresponding to the timbre selection switches 17 to 21 are respectively
TS ₁ , TS ₂ , TS ₃ , TS ₄ , TS ₅ , TS ₅ ,
Priority is given in the order of TS ₄ , TS ₃ , TS ₂ , and TS ₁ . For example, when the clarinet selection switch 21 is turned on, one input side of the AND circuit 35e connected to this switch 21 is always supplied with a signal of "1" from the inverting circuit 35j. gate is open. Therefore, the "1" signal outputted from the clarinet selection switch 21 is sent to the signal line 34 via the AND circuit 35e, whereby the timbre control signal _TS5 becomes "1". However, one input of AND circuits 35d, 35c, 35b, and 35a corresponding to tone selection switches 20, 19, 18, and 17, which have lower priorities than clarinet selection switch 21, is connected to inverting circuits 35i and 35, respectively.
Since a "0" signal is input through the AND circuits 35d, 35c, and 35
The gates b, 35a are closed. Therefore, as long as the selection switch 21 is turned on, no matter which of the selection switches 20, 19, 18, and 17 is turned on, the tone control signals TS ₄ to _{TS 1} of each signal line 33, 32, 31, and Appears as “0”. In this way, the timbre control signal corresponding to the timbre selection switch having a higher priority is outputted to the timbre processing circuit 13 with priority. The effect control signal generation circuit 36 includes an OR circuit 36a which receives as input the signals (TS ₅ , TS ₄ ) appearing on the signal lines 34 and 33;
An AND circuit 36 to which the output signal of the OR circuit 36a and the output signal of the piano selection switch 19 are input.
b, and an OR circuit 36c into which the output signal of the AND circuit 36b and the signal (TS ₃ ) appearing on the signal line 32 are input. Therefore, when only the piano selection switch 19 is turned on, the AND circuit 35c is opened at this time, so only the tone control signal _TS3 on the signal line 32 becomes "1", instructing the piano tone, and "1". The signal TS ₃ is the OR circuit 36
It is output as an attack effect control signal AT via signal c to instruct application of an attack effect. When either the clarinet selection switch 21 or the trumpet selection switch 20 is turned on, the signal line 3
Tone control signal TS ₅ or TS ₄ appearing at 4, 33
becomes "1" to indicate the clarinet tone or trumpet tone, and this "1" signal TS ₅ or TS ₄ is supplied to one input side of the AND circuit 36b via the OR circuit 36a. If the piano selection switch 19 is on, a "1" signal is supplied to both input sides of the AND circuit 36b, so the AND condition of the AND circuit 36b is satisfied and a "1" signal is output. , this "1" signal is output as an attack effect control signal AT via the OR circuit 36c. Therefore, an attack effect is imparted to the tone of the clarinet or trumpet. At this time, the clarinet selection switch 21 or the trumpet selection switch 20
Since one of these switches 21 and 20 is turned on, even if the piano selection switch 19, which has a lower priority than these selection switches 21 and 20, is turned on, the tone control signal on the signal line 32 is
TS ₃ is "0" and no piano tone is specified. Further, the effect imparting control generation circuit 36 includes an OR circuit 36d to which the output signal from the OR circuit 36a and the signal (TS ₃ ) appearing on the signal line 32 are input.
, an AND circuit 36e to which the output signal of the OR circuit 36d and the output signal of the violin selection switch 18 are input, and an OR circuit 36e to which the output signal of the AND circuit 36e and the signal (TS ₂ ) appearing on the signal line 31 are input. It has a circuit 36f. Therefore, when only the violin selection switch 18 is turned on,
A "1" signal is output from the AND circuit 35b of the priority circuit 35, and the tone control signal TS ₂ on the signal line 31 becomes "1", instructing the violin tone. In addition, this “1” tone control signal TS ₂ is output to the OR circuit 3.
6f, and this OR circuit 36
It is output as a vibrato effect control signal VB from f and instructs to apply a vibrato effect. On the other hand, when any one of the clarinet selection switch 21, trumpet selection switch 20, or piano selection switch 19 is turned on, and the violin selection switch 18 is turned on, one of the tone control signals TS ₅ , TS ₄ , and TS ₃ changes to " At the same time, the timbre control signal TS ₂ becomes "0" due to the operation of the priority circuit 35. At this time, the tone control signals TS ₅ , TS ₄ ,
Since any one of TS ₃ is "1", the output signal of the OR circuit 36d is also "1", which opens the gate of the AND circuit 36e, so the output signal of the AND circuit 36e is sent to the violin selection switch 18. Since it is on, it becomes "1", and this "1" signal is outputted as the vibrato effect control signal VB via the OR circuit 36f. In this way, when any one of the clarinet selection switch 21, trumpet selection switch 20, or piano selection switch 19 is turned on, one of the tone control signals TS ₅ , TS ₄ , and TS ₃ corresponding to the selection switch turned on is selected. becomes "1" and the tone corresponding to this turned-on tone color selection switch is selected, and at this time, when the violin selection switch 18 is turned on, the vibrato effect control signal VB preset to the switch 18 is sent from the OR circuit 36f. A vibrato effect is applied to the selected tone. Further, the effect control signal generation circuit 36 includes an OR circuit 36g into which the output signal of the OR circuit 36d and the signal (TS ₂ ) appearing on the signal line 31 are input, and an output signal from the OR circuit 36g and a vocal selection switch 17. The circuit has an AND circuit 36h to which the output signal of the AND circuit 36h is input, and an OR circuit 36i to which the output signal of the AND circuit 36h and the signal (TS ₁ ) appearing on the signal line 30 are input. Therefore, when the vocal selection switch 17 is turned on alone, the tone control signal TS becomes "1" and the vocal tone is selected, and the ensemble effect control signal SYM of "1" is output from the OR circuit 36i. the ensemble effect is selected. Furthermore, when any of the clarinet selection switch 21, trumpet selection switch 20, piano selection switch 19, violin selection switch 18, and vocal selection switch 17 are turned on, the tone control signals TS ₅ , TS ₄ , TS ₃ , TS ₂
When any one of them becomes "1", the tone color corresponding to the turned on tone color selection switch is selected. At this time, the output signal of the OR circuit 36g also becomes "1",
As a result, the gate of the AND circuit 35h is opened, and when the vocal selection switch 17 is turned on, a "1" signal is output from the AND circuit 35h and supplied to the OR circuit 36i, and the OR circuit 36i outputs a "1" ensemble effect control. Signal SYM is output. That is, the clarinet selection switch 21
Alternatively, by turning on the trumpet selection switch 20, piano selection switch 19, or violin selection switch 18, the tone corresponding to the turned on switch is selected, and when the vocal selection switch 17 is turned on at this time, the ensemble effect is selected. Ru.

Therefore, according to this embodiment, the clarinet sound,
Attack effects, vibrato effects, and ensemble effects can be appropriately applied to the trumpet sound either alone or in combination. Further, a vibrato effect or an ensemble effect can be appropriately applied to the piano sound either alone or in combination. Furthermore, an ensemble effect can be appropriately applied to the violin sound.

Although the above embodiment has been described with reference to five timbre selection switches, this invention is not limited to this, and the invention can also be applied to electronic musical instruments provided with more or fewer selection switches. Of course. Further, in the above embodiment, the ensemble effect, vibrato sound, and attack effect were explained as selectable effects in this invention, but this invention is not limited to these, and various effects such as chorus effect and tremolo effect can be selected. The same applies to the case. Also,
This invention can be applied even when effects are preset on all of the tone color selection switches, and the number of tone color selection switches for which effects are preset can be arbitrarily set as necessary. Furthermore, the types of effects to be preset to each tone color selection switch can also be set arbitrarily. In this way, according to this invention, the effect can be selected arbitrarily without providing a switch for selecting the effect, and as a result, the overall space of the operation section where the switch is placed can be reduced, and the small model This is very convenient for electronic musical instruments.

[Brief explanation of the drawing]

Fig. 1 is a simplified configuration diagram showing an example of a tone selection switch in a conventional electronic musical instrument, Fig. 2 is a block diagram showing an embodiment of an electronic musical instrument according to this invention, and Fig. 3 is a timbre selection switch on an electronic musical instrument according to this invention. FIG. 4 is a diagram showing details of the switch, and FIG. 4 is a diagram showing an example of details of the tone effect setting circuit in FIG. 2. 10...Keyboard circuit, 11...Tone generator, 12...Opening/closing circuit, 13...Tone processing circuit,
15... Sound system, 16... Tone effect setting circuit, 17... Vocal selection switch, 18...
...Violin selection switch, 19...Piano selection switch, 20...Trumpet selection switch,
21... Clarinet selection switch, 22... Vibrato modulation signal generator, 25... Envelope generator, 26... Ensemble effect circuit.

Claims (1)

[Scope of utility model registration request] A plurality of selection switches are each assigned a predetermined tone and effect, and a priority order is set for each of the selection switches, and a single operated selection switch is detected according to the priority order when the selection switch is operated. a second detection means for detecting a selection switch being operated among selection switches having a lower priority than the selection switch detected by the first detection means; timbre control means for controlling the timbre of a musical tone in accordance with the timbre expressed by the selection switch detected by the detection means; and an effect for imparting an effect to the musical tone in accordance with the effect expressed by the selection switch detected by the second detection means. An electronic musical instrument comprising: an imparting means;