JPH045390B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electronic musical instrument that generates sound by striking a diaphragm.

[Conventional technology]

Conventional electronic musical instruments of this type include, for example,
The one shown in FIG. 4 is known. In this electronic musical instrument, a pickup 2 attached to a diaphragm 1 called a pad converts vibrations caused by a drum stick 3 into an analog signal as shown in FIG. 5A, for example. Based on the envelope signal (FIG. 5B) extracted from the signal by the envelope extraction circuit 4, an envelope generating circuit generates an envelope (FIG. 5C) corresponding to the magnitude of the striking force of the drum stake 3. After multiplying this envelope and a predetermined sound source signal from the sound source circuit 6 by a multiplier 7, a desired musical tone (D in FIG. 5) is generated by an acoustic device 8.
I am trying to generate it from

[Problems with conventional technology]

However, conventional electronic musical instruments that generate desired musical tones based on such analog signals have the problem that it is difficult to accommodate a wide variety of performers with a simple configuration.

[Purpose of the invention]

This invention has been made to solve these conventional problems.

That is, the present invention accurately adjusts the batting intention of the percussion player at the time of starting the batting (the intention to play a musical tone at a high volume from the beginning of the batting) to the characteristics of the musical tone to be generated (for example, the volume). The purpose is to obtain an electronic musical instrument that can reflect

Furthermore, the present invention allows the percussion player's batting intention at the time of starting the batting (the intention to play a musical tone at a loud volume from the time of starting the batting) to the characteristics of the musical tone to be generated (for example, volume and timbre). Not only can this be accurately reflected, but even after the musical sound has started to be generated, it is possible to accurately reflect the batting operator's batting intention in the characteristics of the musical sound that has already been generated (for example, the volume and timbre). Another purpose is to obtain a capable electronic musical instrument.

Furthermore, even after the generation of a predetermined musical tone has started, the musical tone is generated in real time with musical tone characteristics (for example, volume and timbre) according to the intention of the percussion operation, while the musical tone that is currently being generated is muted. Another object of the present invention is to obtain an electronic musical instrument that can perform percussion operations reliably according to the intention.

Another object of the present invention is to obtain an electronic musical instrument that can mute the musical tones being generated while smoothly attenuating them.

Another object of the present invention is to provide an electronic musical instrument that has a simple configuration and can simultaneously generate a number of musical tones corresponding to the number of hit members.

[Key points of the invention]

In order to achieve such an object, the present invention has the following configuration.

First, the first aspect of the present invention is that each time the hit member receives a hit, the output value of the output signal output in real time from the hit detection signal output means in response to the hit becomes a preset setting value. When the output value detection means detects that
Until a preset set time elapses, the maximum output value of the output values of the hit detection signal output from the hit detection signal output means in real time is detected by the maximum output value detection means. ,
The main point is that control is performed to start generating a predetermined musical tone with musical tone characteristics (for example, volume characteristics, timbre characteristics) according to the maximum output value detected by the maximum output value detection means. .

Further, the second invention provides musical tone characteristics (for example, volume characteristics, timbre characteristics)
Even after the generation of a predetermined musical tone has started, the musical tone is generated in real time with musical tone characteristics according to the output value of the impact detection signal outputted in real time from the impact detection signal output means. Make it the main point.

Further, the third invention provides a method for generating musical sound characteristics (for example, volume and timbre) according to the maximum output value detected by the maximum output value detection means, in response to the state of the hit each time the member to be hit is hit. ), even after the generation of a predetermined musical tone has started, the musical tone characteristics (for example, volume and tone) are maintained in accordance with the output value of the impact detection signal outputted in real time from the impact detection signal output means.
While the musical tone is generated in real time, the second output value detection means detects that the output value of the hit detection signal has become lower than a second set value to mute the musical tone currently being generated. The main point is that the system is configured to be carried out in response to certain situations.

Further, the fourth invention of the present invention provides a predetermined musical tone with musical tone characteristics in accordance with the maximum output value detected by the maximum output value detection means, in response to the hit state each time the hit member is hit. Even after the start of generation, the musical tone characteristics are in accordance with the output value of the impact detection signal outputted in real time from the impact detection signal output means.
While generating musical tones in real time, the musical tones being generated are muted at the time when the second output value detection means detects that the output value of the hit detection signal has become lower than a second set value. The key point is that the process is configured to be performed after a predetermined period of time has elapsed.

Furthermore, the fifth invention independently outputs each hit state received by the plurality of hit members by the hit detection signal output means, and each analog hit detection signal outputted from the hit detection signal output means is individually output. A common input is made to one analog/digital conversion means in a time-sharing manner, and the common input analog impact detection signal is converted into a signal corresponding to the number of the plurality of hit members by the single analog/digital conversion means. The plurality of sound effects are converted into digital impact detection signals in real time in a time-divisional manner, and the musical tone characteristics are according to the respective digital impact detection signals output in a time-divisional manner from this single analog/digital conversion means. The key point is that a number of musical tones corresponding to the number of striking members are simultaneously generated from the musical tone generating means.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing an embodiment of an electronic musical instrument according to the present invention.

As shown in FIG. 1, the plurality of diaphragms 10 that are struck during performance are made of plywood or the like and are approximately the same size as ordinary drums such as snare drums and bass drums. ..., each diaphragm 1
Pick-up 1 that detects vibrations caused by hitting 0...
1... is attached. This pick up 1
1... is formed from a piezoelectric element or a microphone, etc., and when it is struck by a drum stake 12 or the like, this vibration is transmitted from the pick-up 11...
For example, it is output as an analog signal as shown in FIG. 2, and input to each envelope extraction circuit 13. These envelope extraction circuits 13... extract envelope signals (see FIG. 2) having predetermined waveforms corresponding to the analog signals output from the respective pickups 11...
It is for outputting to the analog/digital converter (hereinafter referred to as "A/D converter") 14,
In this embodiment, an operational amplifier 16 amplifies an analog signal output from a pickup 11 via a capacitor 15, a diode 17 connected to the output side of the operational amplifier 16, and a diode 17 connected to the output side of the operational amplifier 16. It is composed of a capacitor 18 and a resistor 19 connected to each other. The capacitor 18 and the resistor 1
The other end of 9 is grounded, and the diode 17
The output is fed back to the negative input terminal of the operational amplifier 16. Further, the positive input terminal of the operational amplifier 16 is grounded via a resistor 23. Note that the self-discharge time constant of the envelope signal output from each envelope extraction circuit 13 is determined by the capacitance of the capacitor 18 and the resistor 1.
It is determined by the magnitude of the resistance value of No.9.

On the other hand, the A/D converter 14 is for converting the envelope signal output from the envelope extraction circuit 13 into a digital signal. Further, the microcomputer 20 controls all operations of this electronic musical instrument, and controls the generation or muting of desired musical tones based on digital signals from the A/D converter 14. . That is, the microcomputer 20 detects whether the level value of the digital signal output from the A/D converter 14 has reached a certain value (in this embodiment, the level value "5") or more, and The level value of the digital signal is measured multiple times (in this embodiment, twice as shown in FIG. 2 and 4) from the point when the level value reaches a certain value or more (point of time in FIG. 2, 4). The level of the digital signal from the A/D converter is When the value subsequently becomes a constant value (level value "2" in this example) or a value slightly smaller than the constant value, a predetermined period (t) has elapsed from that point (time point 4 in FIG. 2). later,
This is for controlling to mute the musical tone being generated based on a key-off command signal from a timer 21 provided inside. This microcomputer 20 is provided with a random access memory (RAM) 22 for storing each level value of the digital signal from the A/D converter 14. Each level value e.g. "13", "25", "40"
The writing is performed at each timing in FIG. 2, 4,
It is being carried out sequentially. Further, among the level values "13", "25", and "40" respectively stored in this random access memory 22, the maximum level value "40" is detected by the function of the microcomputer 20, and the level value "40" is detected by the function of the microcomputer 20. ” is the diaphragm 1
0 is regarded as the strength of the strike, and the musical tone generating device 27 generates a musical tone with a volume and tone corresponding to this strength. Also, inside the microcomputer 20, there is a gate control that executes various arithmetic processing and sequentially controls the opening and closing of each gate 24 provided at the output stage of each envelope extraction circuit 13 in a time-sharing manner. An arithmetic processing circuit (ALU) 25 for sending signals G ₁ to G _o and a read-only memory (ROM) 26 that permanently stores programs for controlling the entire device are provided.

Then, the microcomputer 20 sends a start command signal (A/D, START) to the A/D converter 14 to start executing A/D conversion, and conversely, the A/D converter 14 starts executing the A/D conversion. An end command signal (EAD) indicating that the process of converting the analog signal into a digital signal is completed is output, and the microcomputer 20
given to.

The musical tone generator 27 is for generating musical tones of a desired volume and tone based on a musical tone generation command from the microcomputer 20, and is composed of a tone generator circuit, an amplifier, a speaker, and the like.

Next, the operation of this invention will be explained.

Now, suppose that a plurality of diaphragms 10... are struck with a predetermined force by the drum stake 12.
The vibrations caused by the impact are sensed by the pickups 11 attached to the respective diaphragms 10, and are output from the pickups 11 as analog signals having a waveform as shown in FIG. 2, for example. This analog signal is input to each envelope extraction circuit 13, and an envelope signal having a waveform as shown in FIG. 2 is extracted from the envelope extraction circuit 13. Each extracted envelope signal is a gate control signal from the microcomputer 20.
The signals are sequentially sent to the A/D converter 14 in a time-sharing manner by each gate 24 whose opening/closing is controlled by G ₁ to G _o . The envelope signal input to the A/D converter 14 is processed within the A/D converter 14 by an A/D start command signal (the first 2) is converted into a digital signal at each output timing. Note that immediately after the output timing of this A/D start command signal, the A/D converter 14 outputs the signal from the microcomputer 20.
An EAD signal indicating the end of the analog/digital conversion operation is sent to the converter (see FIG. 2, 4).
The digital signal output from the A/D converter 14 is processed within the microcomputer 20 according to the flowchart shown in FIGS. 3A and 3B. That is, the microcomputer 20 starts processing from step S-1, and when it reaches step S-2, it jumps to subroutine M, and as shown in FIG. 3B, the microcomputer 20 starts processing. Timer 2 inside
1 clocks a predetermined time, the A/D start command signal is sent to the A/D converter 1 in step M-1.
Send to 4. In the next step M-2, the completion of the conversion process to a digital signal executed by the A/D converter 14 based on the A/D start command signal is detected by inputting an end command signal (EAD),
When such a command signal is input, a YES judgment is made and the process moves to step M-3, where the data of the digital signal is taken into the microcomputer 20. In step M-3, when the data loading operation of the digital signal data into the microcomputer 20 is completed, the process returns to the flow shown in FIG. 3A (jump back), and in this case, in the next step S-3, the microcomputer 20 It is determined whether the level value of the digital signal captured in
to be memorized. If NO, the process returns to step S-2 and then executes step S-3 to determine whether the level value of the digital signal at the timing of the next A/D start command signal is "5" or more. The process is then repeated in the same manner. In the case of this embodiment, the level value of the digital signal is "13" at the timing shown in FIG. be remembered. By storing this level value "13" in the memory 22, it is determined that a specific one of the diaphragms 10 has been struck at that time. next,
The process moves to step S-5, and in this step S-5, the process of the subroutine M described above (M-1 to
M-3), the envelope signal at the timing of the next A/D start command signal (timing 4 in Figure 2) is similarly converted into a digital signal, and in step S-6, random access is performed. The process of the subroutine M (M-1 to M
-3), the envelope signal is converted into a digital signal at the timing of the next A/D start command signal (timing of 4 in Figure 2), and the level at that timing is converted in the next step S-8. Store the value in random access memory 22. Next, in step S-9, the level values of the digital signal at each of the above timings (in this example, the level values "13", "25",
"40"), the maximum level value ("40" in this example) is obtained. This maximum level value "40"
is regarded as the strength when the diaphragm 10 is struck. After this maximum level value is read out from the random access memory 22 by the action of the microcomputer 20, in step S-10, the level value shown in FIG.
As shown in FIG. 2, the microcomputer 20 sends a key-on command to the musical tone generating device 23, and based on this key-on command, the musical tone generating device generates a musical tone with a volume and tone corresponding to the maximum level value "40" of the digital signal. It is output from 27. The musical tone is outputted until the level value of the digital signal outputted from the A/D converter 14 becomes "2". That is, in step S-11, subroutine M is executed, and in the next step S-12, it is determined whether the envelope is less than "2", and if NO, the process returns to step S-11 again. Assume that the level value of the digital signal becomes "2" or less at the timing of FIG. 25. and,
After determining YES in step S-12, the microcomputer 20
The timer 21 starts operating, and after a predetermined time (t) has elapsed from the timing in step S-14, the timer 21 starts operating in step S-15.
A key-off command is sent to the musical tone generating device 27, and the musical tone being generated starts to be smoothly attenuated and silenced.

In this way, in this embodiment, each diaphragm 10...
The analog signal from the pick-up 11 attached to the device is first converted into a digital signal by the A/D converter 14, and then output as a musical tone from the musical tone generator 27, so that all musical tones are processed in an analog manner. Unlike the conventional case, which is performed by

In addition, in this embodiment, since the musical tone is generated based on the maximum level value of each level value of the digital signal output from the A/D converter 14, the diaphragm 10... Musical tones can be generated based on the maximum impact force at the time of impact, and therefore, musical tones can be generated reliably at all times.

Furthermore, in this embodiment, the timer 21 counts a predetermined time (t) from the point in time when the level value of the digital signal output from the A/D converter 14 becomes "2" or less, and the time elapses. Based on the key-off command from the microcomputer 20 that is generated later, the muffling of the currently generated musical tone is started, so the diaphragm 10 is turned off again immediately after the level value of the digital signal becomes "2" or less.
Even if the instrument is struck (often due to an erroneous operation such as double striking), it is possible to prevent musical tones from being generated in quick succession based on the strikes. It is possible to mute the sound while attenuating it smoothly.

In the above embodiment, a musical tone is generated with a volume or timbre corresponding to the maximum level value of the digital signal, but if the level value of the digital signal changes at the sending timing of a certain A/D start command signal. When the level value exceeds a certain value, a musical tone having a volume or tone corresponding to the magnitude of the level value above the certain value may be generated.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the following effects can be achieved.

First, according to the first invention, the output value of the impact detection signal outputted in real time from the impact detection signal output means (in this example, the pick-up 11) is set to a preset value (in this example, the output value is , A/D data value "5" in step S-3 of FIG. 3A)
When it is detected by the output value detection means (in this embodiment, the microcomputer 20), the output value is detected from the detection point until the elapsed time when a preset time has elapsed (in this embodiment, the output value detection means (in this embodiment, the microcomputer 20) 2
in the figure), the maximum output value (in this embodiment, A/D data value "40") of the output values of the hit detection signal outputted from the hit detection signal output means is outputted to the maximum. Value detection means (microcomputer 20 in this embodiment)
is detected by the maximum output value detection means, and is controlled to generate a predetermined musical tone with musical tone characteristics (for example, volume characteristics, timbre characteristics) according to the maximum output value detected by the maximum output value detection means. So,
It is possible to accurately reflect the batting intention of a batting player at the time of starting the batting (the intention to play a musical tone at a high volume from the time of starting the batting) in the characteristics (for example, volume) of the musical tone to be generated.
In addition, according to the first invention, for example, the hit member (in this embodiment, the diaphragm 1
0) Even if a slight noise-like vibration output signal is generated from the percussion detection signal output means against the will of the percussion player due to vibrations caused when a drumstick or hand is placed lightly on the drumstick, this This has the effect of being able to prevent a situation in which unnecessary musical tones are generated in response to the generation of such a slight noise-like vibration output signal.

According to the second invention, the maximum output value detection means (in this embodiment, the microcomputer 20) responds to the state of the striking operation applied to the struck member (in this embodiment, the diaphragm 10). Even after starting to generate a predetermined musical tone with musical tone characteristics (for example, volume characteristics, timbre characteristics) according to the maximum output value detected by the impact detection signal output means (in this embodiment,
Since the musical tone is configured to be generated in real time with the musical tone characteristics according to the output value of the hit detection signal outputted in real time from the pickup 11), it is possible to generate the musical sound in real time. Not only can the characteristics of the musical sound to be generated (for example, volume and timbre) accurately reflect the intention to perform the musical sound at a high volume from the beginning, but also the The output value of the impact detection signal output in real time from the impact detection signal output means can be accurately reflected in the characteristics (for example, volume and timbre) of the musical sound that has already been generated.

Further, the third invention is configured to detect a maximum output value by a maximum output value detection means (in this embodiment, the microcomputer 20) in response to a striking operation state applied to the struck member (in this embodiment, the diaphragm 10). Even after the start of generating a predetermined musical tone with musical tone characteristics (for example, volume and timbre) according to the maximum output value, the impact detection signal output means (in this embodiment, the pick-up 11) continues to output in real time. Musical sound characteristics (for example, volume and tone) according to the output value of the hit detection signal
While generating musical tones in real time, the second output value detecting means (in this embodiment, the microcomputer 20) mutes the musical tones that are being generated by adjusting the output value of the hit detection signal to a set value (actual value). In the example, A/
Since the configuration is such that this is done in response to the detection that the D data value has become lower than ``2'',
It is possible to reliably mute the musical tones that are being generated.

Further, in the fourth aspect of the present invention, the maximum output value detecting means (in this embodiment, the microcomputer 20) responds to the striking operation state applied to the struck member (in this embodiment, the diaphragm 10). Even after the start of generation of a predetermined musical tone with musical tone characteristics according to the detected maximum output value, the output value of the impact detection signal output in real time from the impact detection signal output means (in this embodiment, the pick-up 11) While musical tones are generated in real time with musical tone characteristics according to
The A/D data value "2") is detected after a predetermined period of time has passed (in this embodiment, at time (t) in FIG. 2), It is possible to mute musical sounds while attenuating them smoothly.

Further, according to the fifth invention, the impact detection signal output means (pickups 11, 11) independently outputs each impact state received by the plurality of hit members (in this embodiment, the diaphragms 10, 10). Then, each analog impact detection signal outputted from this impact detection signal output means is sent to a single analog/digital conversion means (in this embodiment, the A/D converter 14).
A common input is made in a time-division manner, and the common input analog hit detection signal is transmitted to the single analog/
The digital conversion means time-divisionally converts the digital impact detection signals into a number corresponding to the number of the plurality of hit members in real time, and converts the single analog/
The musical sound generating means (in this embodiment Since the musical tones are generated simultaneously from the musical tones generating device 27), it is possible to simultaneously generate musical tones in a number corresponding to the number of the plurality of hit members by using a single analog/digital conversion means. Therefore, a plurality of musical tones can be generated simultaneously with an extremely simple configuration.

[Brief explanation of drawings]

FIG. 1 is a circuit configuration diagram showing an embodiment of an electronic musical instrument according to the present invention, and FIGS. 2 and 2 are waveform diagrams showing the waveform of an analog signal from a pickup and the waveform of an envelope signal corresponding to the waveform. , Figure 2.3 shows the A/D from the microcomputer.
A timing chart showing the timing of the A/D start command signal to the converter, FIG. 2 4 is a timing chart showing the timing of the end command signal from the A/D converter to the microcomputer, and FIG. 2 5 shows the timing chart of the key-on command and Timing chart showing timing of key-off command, Figure 3A is A/D
FIG. 3B is a flowchart showing the processing of the microcomputer until musical tone is generated from the musical tone generator based on the digital signal from the converter.
A flowchart showing the contents of a subroutine from the start of A/D conversion to the acquisition of A/D conversion data in Fig. A, Fig. 4 is a block circuit diagram showing a conventional electronic musical instrument, and Fig. 5 A, B, C, and D
1 is a waveform diagram showing the process from the waveform of an analog signal taken out from a pickup to the waveform of a musical tone generated from a musical tone generator. 10... Vibration plate, 11... Pickup, 13
... Envelope extraction circuit, 14 ... A/D converter, 20 ... Microcomputer, 21 ... Timer, 22 ... Random access memory (RAM), 27 ... Musical tone generator.

Claims (1)

[Scope of Claims] 1. A hit member that is operated to be hit; and a hit detection signal provided on the hit member that outputs in real time a hit detection signal corresponding to the state of the hit each time the hit member receives a hit. a hit detection signal output means; each time the hit member receives a hit, an output value of the hit detection signal output from the hit detection signal output means in real time in response to a hit is equal to or greater than a preset value; output value detection means for detecting whether or not the impact detection signal has reached the set value; maximum output value detection means for detecting a maximum output value of the output values of the hit detection signal outputted in real time from the hit detection signal output means until a set time elapses; An electronic musical instrument comprising: control means for controlling the generation of a predetermined musical tone with musical tone characteristics according to the maximum output value detected by the output value detection means. 2. A hit member to be struck, and a hit detection signal output means provided on the hit member and outputting a hit detection signal in real time corresponding to the state of the hit each time the hit member receives a hit. , each time the hit member is hit, whether or not the output value of the hit detection signal output in real time from the hit detection signal output means has become equal to or higher than a preset value in response to the hit. output value detection means for detecting; and elapse of a predetermined time period from the detection point in time when the output value detection means detects that the output value of the hit detection signal has become equal to or greater than the set value. a maximum output value detection means for detecting a maximum output value among the output values of the hit detection signal outputted in real time from the hit detection signal output means; a first control means for controlling to start generating a predetermined musical tone with musical tone characteristics according to the maximum output value; A second control means for controlling the musical sound to be generated in real time with a musical sound characteristic according to the output value of the impact detection signal outputted in real time from the impact detection signal output means. An electronic musical instrument. 3. A hit member to be struck, and a hit detection signal output means provided on the hit member and outputting a hit detection signal in real time corresponding to the state of the hit each time the hit member receives a hit. , each time the hit member is hit, the output value of the hit detection signal output in real time from the hit detection signal output means becomes equal to or higher than a preset first set value in response to the hit. a first output value detection means for detecting whether or not the first output value detection means detects that the output value of the hit detection signal outputted in real time by the first output value detection means has reached the first set value; Detecting the maximum output value of the output values of the detection signal output from the hit detection signal output means in real time between the time of detection when the hit detection signal is detected and the time when a preset time has elapsed. a first control means for controlling the generation of a predetermined musical tone with musical tone characteristics according to the maximum output value detected by the maximum output value detecting means; After the generation of a predetermined musical tone is started under the control of the control means, the musical tone is generated in real time with musical tone characteristics according to the output value of the hit detection signal outputted in real time from the hit detection signal output means. a second control means for controlling the second control means; and after the generation of a predetermined musical tone is started under the control of the second control means, an output value of the hit detection signal output from the hit detection signal output means in real time is determined. a second output value detection means for detecting whether the output value of the hit detection signal has become lower than a second preset value; 1. An electronic musical instrument, comprising: mute-instructing means for instructing to mute the musical tone being generated in response to a detection that the value has become lower than a set value. 4. A hit member to be hit, and a hit detection signal output means provided on the hit member for outputting a hit detection signal in real time corresponding to the state of the hit each time the hit member receives a hit. , each time the hit member is hit, the output value of the hit detection signal output in real time from the hit detection signal output means becomes equal to or higher than a preset first set value in response to the hit. a first output value detection means for detecting whether or not the first output value detection means detects that the output value of the hit detection signal outputted in real time by the first output value detection means has reached the first set value; The maximum output value of the output values of the hit detection signal output from the hit detection signal output means in real time from the detection time when the hit detection signal is detected until the elapsed time when a preset time has elapsed. a maximum output value detection means for detecting; a first control means for controlling to start generating a predetermined musical tone with a musical tone characteristic according to the maximum output value detected by the maximum output value detection means; After the generation of a predetermined musical tone is started under the control of the control means 1, a musical tone is generated in real time with a musical tone characteristic according to the output value of the hit detection signal outputted in real time from the hit detection signal output means. a second control means for controlling such that the output value of the blow detection signal is outputted in real time from the blow detection signal output means after the generation of a predetermined musical tone is started under the control of the second control means; a second output value detection means for detecting whether or not the output value of the impact detection signal has become lower than a second preset value; an electronic device characterized by comprising: mute instructing means for instructing to mute the musical tone being generated after a predetermined period of time set in advance has elapsed from the time when it is detected that the musical tone has become lower than a set value. musical instrument. 5 musical sound generating means capable of simultaneously generating a plurality of musical tones, a plurality of hit members to be operated by striking, and a means provided for each of the plurality of hit members, and each time each of the hit members receives a blow, a hit detection signal output means for independently outputting each hit state for each hit member and outputting analog hit detection signals corresponding to these hit states; and each analog hit outputted from the hit detection signal output means. Commonly inputs the detection signal in a time-division manner,
a single analog/digital conversion means that sequentially and time-divisionally converts the commonly inputted analog impact detection signal into a number of digital impact detection signals corresponding to the number of the plurality of hit members; The musical sound generating means simultaneously generates a number of musical sounds corresponding to the number of the plurality of hit members, with musical sound characteristics according to each digital impact detection signal sequentially and time-divisionally output from the analog/digital conversion means of the An electronic musical instrument characterized by comprising: a control means for controlling the electronic musical instrument so as to perform the following steps.