JP3211328B2 - Performance input device of electronic musical instrument and electronic musical instrument using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input device for playing an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, to play and operate an electronic musical instrument, for example, a keyboard is required for an electronic keyboard instrument, a string is required for an electronic stringed instrument, and a pad is required for an electronic percussion instrument. Reference numeral denotes a fixed input device which is incorporated in the electronic musical instrument as a part of performance operation means of the electronic musical instrument or prepared as an independent device.

[0003] However, some users may want to perform as if they were hitting a vibrating body such as a desk, wall, wooden box, or the like around them with a stick. In order to enjoy such a performance, an electronic musical instrument having an input device fixed as described above was insufficient.

An object of the present invention is to enable an arbitrary vibrator to be used as an input device of an electronic musical instrument.

[0005]

SUMMARY OF THE INVENTION The present invention is based on a performance input device for an electronic musical instrument for generating musical sound data for operating a musical instrument, or an electronic musical instrument using the same.

First, there are provided a plurality of vibration detecting means which are detachably installed at different positions of a vibrating body to which vibration is applied by a playing operation and which detects vibration applied to the vibrating body. The means is, for example, a piezoelectric element with a suction cup.

Next, there is provided a maximum time difference setting means for setting a maximum time difference which is a time for transmitting vibration between the plurality of vibration detecting means on the vibrating body. This means, for example,
Vibration is applied to the vibrating body near any of the vibration detecting means, a time difference until the vibration is detected by another vibration detecting means is detected, and the time difference is set as a maximum time difference. Alternatively, or by giving a drive signal to any vibration detection means, for example, a piezoelectric element, to generate vibration,
This is a means for detecting a time difference until the vibration is detected by another vibration detecting means and setting the detected time difference as a maximum time difference.

Next, there is provided a relative time difference time measuring means for measuring a relative time difference of a vibration transmission time from when the vibration applied to the vibrating body by the playing operation reaches the plurality of vibration detecting means from the position where the vibration is applied. .

There is provided a mapping means for converting the relative time difference measured by the relative time difference measuring means into desired musical sound data based on the maximum time difference and outputting the data. The tone data converted by the mapping means in accordance with the relative time difference includes tone pitch data, tone color data, and the like.

When the present invention is realized as an electronic musical instrument, in addition to the above-mentioned configuration, it further has a tone signal generating means for generating a tone signal based on tone data output from the mapping means.

In the configuration of the present invention described above, the mapping means
It can be configured to further include mapping setting means for setting the correspondence between the converted relative time difference and the musical sound data . Further, it is possible to further comprise a display means for displaying each of the tone data converted by the mapping means in accordance with the relative time difference.

[0012] Further, by detecting that the maximum time difference set by the maximum time difference setting means is not an appropriate value, the performer can determine that the installation positions of the plurality of vibration detection means installed on the vibrating body are not appropriate. It is also possible to further comprise an error detecting means for making the user aware.

[0013]

According to the present invention is, in our only times Riniaru goods, vibration and degree vibration Oh Ru The addition of, and if the vibrating body vibration sensor can be installed, a simple pre-work, that an instrument of It can be used as a playing means, and it can entertain people with its unexpected and novel ideas.

Furthermore, a performance input device for an electronic musical instrument or an electronic musical instrument using the same can be realized at a much lower cost than conventional keyboards, electronic drum pads, and the like.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of the present invention will be described below with reference to the drawings. Outline 1 embodiment is an external view of an embodiment of the present invention. This appearance is common to a first embodiment and a second embodiment of an electronic musical instrument according to the present invention described later.

In FIG. 1, a vibrating body 101 is for allowing a user to perform a performance by causing a user to shot the desired position with a stick or the like. The vibrating body 101 is made of a material that generates a certain amount of vibration when shot, and is not limited to a plate-like one as shown in FIG. Shape.

The vibration sensor 102 of # 1 and the vibration sensor 1 of # 2
Numeral 03 converts the vibration of the vibrating body 101 into an AC electric signal, and its frequency characteristics are not limited as long as the vibration can be detected. For example, an inexpensive device using a piezoelectric element 201 for a buzzer as shown in FIG. 2 may be used. The piezoelectric element 201 is attracted to a desired position of the vibrating body 101 by the suction cup 202.

When a vibration is applied to the vibrating body 101, the time difference between the time required for the vibration to reach the # 1 vibration sensor 102 and the time required for the vibration to reach the # 2 vibration sensor 103 is determined by adding the vibration. It is determined by the difference between the distance from the given position to each sensor and the transmission speed of the vibration on the vibrating body 101. Therefore, by assigning this time difference to performance information of musical tones, for example, tone data such as pitch data and types of percussion instruments in advance, desired performance information can be input depending on the position at which the vibrating body 101 is shot.

Next, the switch section 104 includes a power switch 105, a reset switch 106, and a mapping switch 107 used for mapping described later.
Consists of The display unit 108 displays a setting state of the mapping, and the speaker 109 emits a musical sound. First Embodiment of Electronic Musical Instrument According to the Present Invention FIG. 3 is an overall configuration diagram of a first embodiment of an electronic musical instrument according to the present invention having the appearance shown in FIG. 1 described above.

First, the vibration detecting section 301 includes the vibration sensor 102 of # 1, a zero-cross detecting circuit 302, and a retriggerable one-shot multivibrator 303.

Next, as described above, the performance shown in FIG.
When vibration is applied to the vibrating body 101, the vibration sensor 10 of # 1
2 is output to the 0 (zero) cross detection circuit 302. The zero-cross detection circuit 302 outputs a pulse train signal having a constant amplitude corresponding to the detection signal.

Thereafter, the pulse train signal is converted by the retriggerable one-shot multivibrator 204 into one vibration detection pulse having a time width corresponding to the time from the start to the end of the vibration. Thereafter, the vibration detection pulse is input to the OR gate 307 and the input port I _{0 of the} CPU (Central Processing Control Unit) 308.

The CPU 308 has a ROM (Read Only Memory)
y) A random access memory (RAM) 310 which performs various control operations according to a program in 309 and has various data areas as shown in FIG.

Further, the vibration detecting section 304 having the same configuration as the vibration detecting section 301 is provided with the vibration sensor 103 of # 2 (FIG. 1).
Is configured to include a reference), the vibration detection signal of the vibration member 101 by the vibration sensor 103 of # 2 is output to the input port I ₁ of the OR gate 307, and CPU 308.

Thus, the two vibration sensors 10
2 and 103 are detected by the CPU 30
The time difference between the timings at which the vibrations are output to the input ports I ₀ and I ₁ , that is, the relative time difference from the position where the vibration is applied to the vibrating body 101 to the time when the vibration reaches the two vibration sensors 102 and 103 is determined by the CPU 308. Timed by

In the CPU 308, tone data such as pitch data and timbre data is assigned in accordance with the relative time difference that varies depending on the playing (hitting) position of the vibrating body 101 as described above. Is designated for the sound system 311, and the musical sound is emitted from the sound system 311 via the speaker 109. This assignment is called mapping in this embodiment. The state of this mapping is as follows
04 can be set by the mapping switch 107 and can be confirmed on the display unit 108 (see FIG. 1).

The CPU 308 has an interrupt terminal INT. When one of the vibration sensors 102 and 103 detects the vibration of the vibrating body 101, the output of the OR gate 307 is input to the interrupt terminal INT as an interrupt signal.
At that timing, an interrupt process shown in FIG. 7 described later is executed.

FIG. 4 shows that C, D, E,... Having nine different pitches are provided in each area on the vibrating body 101.
-It is the figure which showed the state where C sound and D sound which were one octave higher were mapped, respectively.

When a vibration is applied to each area with a stick or the like, a relative time difference (hereinafter simply referred to as a time difference) from the position where the vibration is applied to the time when the vibration reaches the two vibration sensors 102 and 103 is: It changes depending on the distance from the position where vibration is applied to each vibration sensor. Therefore, if the time difference can be detected, it is possible to determine a region on the vibrating body 101 where vibration is applied.

[0030] vibrating the P ₁ point in FIG. 4 is applied for example, each time the vibration reaches the vibration sensor 103 of the vibration sensor 102 and # 2 and # 1, respectively 3 at time coordinates on 4 At 8, the time difference is -5. Further, when vibration respectively is applied to the P ₂ point and P ₃ points 4, each time, at 2 and 7, and 4 and 9, -5 Any time difference. Thus, P ₁ ,
A curve with a time difference of -5 connecting the three points P ₂ and P ₃ is drawn.

Similarly, the time differences -7, -5, -3, +
Each curve showing the positions of 1, +3, +5, and +7 is obtained. For example, when vibration is applied at the position of the vibration sensor 102 of # 1, the time difference becomes -9, which corresponds to -MAX described later. On the other hand, when a vibration is applied to the point of the vibration sensor 103 of # 2, the time difference becomes 9, which corresponds to MAX described later. This MAX is defined as a maximum time difference described later.

In this embodiment, for example, C sound (for example, note number is 1), D sound (also note number 2),
E sound (note number 3) ... sound C (note number 8) and D sound (note number 9) one octave higher
Is assigned.

FIG. 8 is a diagram showing the correspondence between time differences -9 to 9 and note numbers 1 to 9 corresponding to the time differences. First, in FIG. 8, the time difference shown in FIG.
Rewrite 9 to 9 with the time difference 0 to 18 shown in (b) based on -MAX (-9). If the time difference on the time axis shown in FIG. 8A is d and the time difference on the time axis shown in FIG. 8B is d ′, the following equation is established.

[0034]

D ′ = d + MAX Next, the values 0 to 18 of the time difference d ′ are converted to the note numbers 1 to 9.
To correspond to. Now, as shown in FIGS. 8B and 8C, assuming that the note number corresponding to the time difference d 'is N and the maximum value of the note number is MAX.NOTE (9 in the example of FIG. 8), An internal division relation of the expression holds.

[0035]

D ′: 2 · MAX = N: MAX.NOTE From equation (2) and equation (1), the note number N is obtained by the following equation.

[0036]

N = (d'.MAX.NOTE) / (2.MAX) = {(d + MAX) .MAX.NOTE} / (2.MAX) where N is rounded up when it is a decimal number. To be an integer. As a specific example, FIG.
In the case of X.NOTE = 9, note number values corresponding to time differences d ′ = 0, 1, 2,..., 17 and 18 calculated based on Expression 3, and the fractional part of the note number values Indicates the note number N rounded up. Each note number N is the sound C, the sound D in FIG.
... corresponds to each area of sound C and sound D one octave higher.

As described above, by photographing a desired area of the vibrating body 101 set in accordance with the time difference, it is possible to play a musical tone of a predetermined tone at a desired pitch. It is possible to play scale sounds over one octave with the sound of cymbals.

The above example is an example in which note numbers, which are pitch data, are mapped as different musical sound data to respective areas on the vibrating body 101 set corresponding to the time difference. Here, the musical tone data corresponding to the time difference is not limited to the pitch data as described above, but may be tone data of a percussion instrument or the like. In this case, the note number N is replaced with a number representing each tone color.

Next, the operation of the first embodiment of the electronic musical instrument according to the present invention having the above-described configuration will be described. FIG. 6 is a main flowchart of the present embodiment, which is realized as an operation in which the CPU 308 of FIG. 3 executes a program stored in the ROM 309. When executing this program, the RAM 310 in FIG.
Are secured.

In FIG. 6, first, the power switch 105
When (see FIG. 1) is turned on, initialization for clearing the counter in the CPU 308, the contents of the RAM 311 and the like is performed (step S601).

Next, a desired mapping is set based on the setting contents of the mapping switch 107 by the user. In other words, it is selected whether the tone difference corresponds to the pitch or the timbre in the musical tone data (step S602).

Thereafter, in order to enter the setting mode for setting each position of the vibration sensor 102 of # 1 and the vibration sensor 103 of # 2 provided on the vibrating body 101, the R in the CPU 308 is set.
The value 1 is input to the “MODE” area (see FIG. 5) of the AM 310 (step S603).

In the next step S604, "MOD
It is determined whether or not the value of the “E” area has become 0.
Unless the value of the “MODE” area is set to 0 by the interrupt processing of FIG. 7 described below, the determination in step S604 is N.
It becomes O, and the process of the main flow is in a waiting state.

In this state, the user moves the vibration sensor 102 of # 1 and the vibration sensor 103 of # 2 to the vibrating body 101.
After setting the position, when the vicinity of one of the vibration sensors is shot in order to set those positions, the OR gate 30 is output from either the vibration sensor 102 or 103.
7, an interrupt signal is input to the interrupt terminal INT of the CPU 308, and the interrupt process shown in the operation flowchart of FIG. 7 is executed at that timing. This flow is realized as an operation in which the CPU 308 executes the interrupt program stored in the ROM 309.

In FIG. 7, first, two vibration sensors 102 and 103 are connected to ports I ₀ and I ₁ of the CPU 308.
It is determined whether the vibration detection signals have been input simultaneously (step S701).

If the vibration detection signals are input at the same time, the value 0 is assigned to the "time difference" area of the RAM 310 in the CPU 308 (step S702). On the other hand, if the vibration detection signal is not input at the same time, the port number (port No.) of the port to which the vibration detection signal has been input first is C
This is set in the “FIRST” area of the RAM 310 in the PU 308 (Step S703).

Next, a timer (not shown) in the CPU 308 is reset, and measurement of time until the second vibration detection signal is input is started (step S70).
4). Here, the measured value of the timer is stored in the “timer” in the RAM 310 by a timer interrupt process (not shown).
The data is sequentially input to the area (see FIG. 5).

Subsequently, the control waits for the input of the second vibration detection signal (step S705). When the input is made, the time count value input to the "timer" area at that time is equal to RA.
It is set in the “time difference” area of M310 (see FIG. 5) (step S706).

Thereafter, it is determined whether the value of the "MODE" area is 1, that is, whether the mode is the setting mode (step S707). When an interrupt occurs in the waiting state of step S604 of the main flow in FIG. 6, the value of the “MODE” area is 1, that is, the setting mode. In this case, it is determined whether or not the value of the “time difference” area falls within a preset effective time difference value (step S708). The effective time difference value is RO
M309.

If this determination is YES, the "time difference"
When the value of the area is the maximum time difference “MA
X ”area (see FIG. 5) (step S70).
9). Then, the value “0” is set in the “MODE” area (step S710), and the process returns to the main flow of FIG.

On the other hand, if the # 1 vibration sensor 10
If the vibration sensors 103 of # 2 and # 2 are too close, it is determined in step S708 that the measured value of the "time difference" area does not fall within the effective time difference. In this case,
An error sound notifying that the installation position of the vibration sensor is inappropriate is output from the speaker 109 (step S71).
1), and return to the processing of the main flow of FIG.

In the waiting state of step S604 of the main flow of FIG. 6, after the interrupt processing shown in the flow of FIG. 7 is executed, the operation of setting the position of the sensor is normally performed, and the "MODE" area is determined in step S710. 0
Is set, the determination in step S604 is YES
Becomes In this case, a signal sound is emitted to notify the end of the arrangement of the vibration sensor (step S605), and the switch unit 10
4 is in a state of waiting for the reset switch 106 (see FIG. 1) to be pressed (step S606). In this waiting state, the user can perform a performance input.

On the other hand, in the waiting state of step S604 in FIG. 6, after the interrupt processing shown in the flow of FIG. Since the value of the "" area remains 1, the determination in step S604 is not YES. In this case, the user corrects the positions of the # 1 vibration sensor 102 and the # 2 vibration sensor 103 on the vibrating body 101, and then sets a position near one of the vibration sensors to set those positions. Shot again. Thus, the process of setting the sensor position after step S708 in FIG. 7 is repeated.

After the above setting operation, in the waiting state of step S606 in the main flow of FIG. 6, when the user shots an arbitrary position on the vibrating body 101 to perform a performance input, either of the vibration sensors 102 or 103 Then, an interrupt signal is input to the interrupt terminal INT of the CPU 308 via the OR gate 307, and at that timing, the interrupt processing shown in the operation flowchart of FIG. 7 is executed again.

First, the aforementioned steps S701 to S70
By the processing in step 6, the time difference from the input point of the previous vibration detection signal to the input point of the subsequent vibration detection signal is stored in the RAM 31
It is set in the “time difference” area of 0 (see FIG. 5) (step S706).

Thereafter, it is determined whether the value of the "MODE" area is 1, that is, whether the mode is the setting mode (step S707). When an interrupt occurs in the waiting state of step S606 of the main flow in FIG. 6, the value of the "MODE" area is 0, that is, the performance mode. In this case, the determination in step S707 is NO.

In this case, first, at step S70 described above.
It is determined whether the value of the “FIRST” area of the RAM 310 set in step 3 is 0, that is, whether the port to which the vibration detection signal was previously input is I ₀ (step S).
712). The case where the port is determined to be _I0 is a case where the position where the vibration is applied is closer to the vibration sensor 102 of # 1 as shown in FIG. In this case,
A negative sign is given to the value set in the “time difference” area (step S713), and a negative time difference is set (FIG. 4).
reference). On the other hand, if the port is determined to be I ₁ is the case where the position where the vibration is applied as shown in FIG. 4 is closer to the vibration sensor 103 of # 2. In this case,
No negative sign is given to the value set in the “time difference” area, and a positive time difference is set (see FIG. 4).

Next, the value set in the "time difference" area is set as the time difference d, and based on the time difference d, the note number N is calculated by the above-described equation (step S714).

Then, the calculated note number N
Note designation data corresponding to the sound system 311
, From which a tone corresponding to the note number N is emitted via the speaker 109 (step S71).
5).

For example, when the position P ₄ in FIG. 4 is shot, the vibration on the vibrating body 101 is
The time to reach the vibration sensor 103 of # 2 is 4, 6 respectively.
And the time difference is 2. In this case, since the position where the vibration is applied is closer to the vibration sensor 102 of # 1, the determination in step S712 is YES, and the time difference 2
Is set to -2. As a result, as shown in FIG. 4, since the time difference -2 is in the region of the time differences -1 to -3, a musical tone having a pitch of the F sound is emitted.

After the above operation, the process returns to the main flow of FIG. After the above-described interrupt processing in FIG. 7, in the main flow in FIG. 6, the wait state in step S606 is maintained, and the user can continue to input the performance. That is, every time the user shots an arbitrary position on the vibrating body 101, the interruption process shown in the operation flowchart of FIG. 7 is executed, and the emission of the musical sound corresponding to the shot position is repeated.

When the user wants to reset the sensor position, the reset switch 106 of the switch unit 104
push. As a result, the determination in step S606 in FIG.
The flow returns to ES, and the process returns to step S603, and the above-described operation of setting the sensor position is performed again. Second Embodiment of Electronic Musical Instrument According to the Present Invention FIG. 10 is a block diagram showing the overall configuration of a second embodiment of the electronic musical instrument according to the present invention having the appearance shown in FIG.

In the first embodiment, after the user sets the vibration sensor 102 of # 1 and the vibration sensor 103 of # 2 on the vibrating body 101, the user sets one of the vibration sensors 102 and 103 to set their positions. Was shot near. On the other hand, in the second embodiment, when the user
And after setting the vibration sensor 103 of # 2 to the vibrating body 101,
The CPU 308 automatically sets a position by causing any of the vibration sensors to vibrate and detecting the vibration via another vibration sensor.

FIG. 10 is an overall configuration diagram of a second embodiment according to the present invention. Portions denoted by the same reference numerals as those in the first embodiment of FIG. 3 have the same functions. The configuration of FIG. 10 differs from the configuration of FIG. 3 in the following.

That is, when the control signal 1005 output from the CPU 308 is at a low level, the gate 1003 is closed, while the gate 1002 outputs a high-level control signal obtained by inverting the control signal 1005 by the inverter 1004. Is input, the gate 1002 is opened. The electrical connection in this case is exactly the same as in FIG.

On the other hand, when the control signal 1005 output from the CPU 308 becomes high level, the gate 1003 is closed. On the other hand, a low level control signal obtained by inverting the control signal 1005 by the inverter 1004 is input to the gate 1002. Gate 1002 is closed.
As a result, a drive signal for causing the # 1 vibration sensor 102 to vibrate is output from the CPU 308 to the vibration sensor 102 via the gate 1003.

Next, the operation of the second embodiment of the electronic musical instrument according to the present invention having the above-described configuration will be described. FIG. 11 is a main flowchart of the present embodiment.
0 is realized as the operation of executing the program stored in the ROM 309. In executing this program, the variable areas shown in FIG. 5 described above are secured in the RAM 310 of FIG.
However, the “MODE” area is not required.

In FIG. 11, first, the power switch 10
When 5 (see FIG. 1) is turned on, initialization for clearing the contents of the counter in the CPU 308 and the RAM 311 is performed (step S1101).

Next, a desired mapping is set based on the contents of the setting of the mapping switch 107 by the user. That is, it is selected whether the tone difference corresponds to the pitch or the tone in the musical tone data (step S1102).

Next, as described above, the vibration sensor 102 of # 1 is driven, and the vibrating body 101 is vibrated (step S1103). At the same time, the timer in the CPU 308 is reset to start measuring time (step S).
1104). Here, the measured value of the timer is sequentially input to a “timer” area (see FIG. 5) in the RAM 310 by a timer interrupt process (not shown).

Then, the control waits for the input of a vibration detection signal from the vibration sensor 103 of # 2 (step S1105). When the input is received, the time count value input to the “timer” area at that time is stored in the RAM 310. It is set in the “time difference” area (see FIG. 5) (step S1106).

Next, it is determined whether or not the value of the "time difference" area falls within a preset effective time difference value (step S1107). The effective time difference value is stored in the ROM 309.

If this determination is YES, the value of the above-mentioned "time difference" area is stored in the "MAX" area (see FIG. 5) of the RAM 310 as the maximum time difference (step S).
1108).

Thereafter, a signal sound notifying the end of the arrangement of the vibration sensor is issued (step S1109), and the apparatus enters a state of waiting for the reset switch 106 (see FIG. 1) of the switch section 104 to be pressed (step S1111). In this waiting state, the user can perform a performance input.

On the other hand, if the installed # 1 vibration sensor 10
If the vibration sensors 103 of # 2 and # 2 are too close or too far apart, it is determined in step S1107 that the value of the "time difference" area measured does not fall within the effective time difference. In this case, an error sound is output from the speaker 109 notifying that the installation position of the vibration sensor is inappropriate (step S1110), and step S1103 is performed.
Return to In this case, the user is
The position of the vibration sensor 102 and the position of the vibration sensor 103 # 2 are corrected, and the processing of setting the sensor positions in steps S1103 to S1107 is repeated.

After the above setting operation, in the waiting state of step S1111 of the main flow of FIG. 11, when the user shots at an arbitrary position on the vibrating body 101 in order to input a performance, either of the vibration sensors 102 or 103 Then, an interrupt signal is input to the interrupt terminal INT of the CPU 308 via the OR gate 307, and the interrupt process shown in the operation flowchart of FIG. 12 is executed again at that timing.

In FIG. 12, first, by the processing of steps S1201 to S1206 similar to steps S701 to S706 described above with reference to FIG. 7 relating to the first embodiment, the vibration detection signal after the input point of the previous vibration detection signal is obtained. The time difference up to the input time point is set in the “time difference” area of the RAM 310 (see FIG. 5).

Next, whether the value of the “FIRST” area of the RAM 310 set in step S1203 is 0,
That is, the port to which the vibration detection signal was input first is I ₀
Is determined (step S1207). If it is determined that the port is I ₀ , as in step S713 described above with reference to FIG.
A negative sign is given to the value set in the “time difference” area (step S1208), and a negative time difference is set. On the other hand, if the port is determined to be I ₁ is
No negative sign is given to the value set in the “time difference” area, and a positive time difference is set.

Next, the value set in the “time difference” area is set as the time difference d, and the note number N is calculated based on the time difference d by the above-described equation (step S1209).

Then, the calculated note number N
Note designation data corresponding to the sound system 311
, From which a tone corresponding to the note number N is emitted via the speaker 109 (step S12).
10).

After the above operation, the process returns to the main flow of FIG. After the above-described interrupt processing in FIG. 12, in the main flow in FIG. 11, the waiting state in step S1111 is maintained, and the user can continue to input the performance. That is, every time the user shots an arbitrary position on the vibrating body 101, the interruption process shown in the operation flowchart of FIG. 12 is executed, and the emission of the musical tone corresponding to the shot position is repeated.

When the user wants to reset the sensor position, the reset switch 106 of the switch unit 104
push. As a result, the determination in step S1111 of FIG. 11 becomes YES, the process returns to step S1103, and the above-described operation of setting the sensor position is performed again. Other Embodiments In the two embodiments described above, two vibration sensors are used. However, if three or more vibration sensors are used, the vibrating body is more finely mapped and a desired musical instrument timbre or pitch is obtained. Information can be assigned to a specific position on the vibrator. One example is shown in FIG. This example is 3
This is an example in which the tone color of a drum set including seven musical instruments is mapped on a vibrating body using _two vibration sensors S ₁ , S ₂ , and S ₃ . It can be seen that the area is specified more finely than in the example of FIG.

[0083]

According to the present invention, in our only times Riniaru goods, vibration and degree vibration Oh Ru The addition of, and if the vibrating body vibration sensor can be installed, a simple pre-work, It can be used as a musical instrument playing means, and people can be entertained with unexpected and novel ideas.

Further, a performance input device of an electronic musical instrument or an electronic musical instrument using the same can be realized at a much lower cost than conventional keyboards and pads of an electronic drum.

[0085]

[Brief description of the drawings]

FIG. 1 is an external view of an embodiment of the present invention.

FIG. 2 is a structural diagram of a vibration sensor.

FIG. 3 is an overall configuration diagram of a first embodiment.

FIG. 4 is a diagram showing pitch regions assigned according to time differences.

FIG. 5 is a diagram showing various areas in a RAM.

FIG. 6 is a main operation flowchart of the first embodiment.

FIG. 7 is an operation flowchart of an interrupt process according to the first embodiment;

FIG. 8 is a diagram showing a correspondence relationship between a time difference and a note number.

FIG. 9 is a diagram illustrating an example in which a note number corresponding to a time difference is calculated by Expression 3.

FIG. 10 is an overall configuration diagram of a second embodiment according to the present invention.

FIG. 11 is a main operation flowchart of the second embodiment.

FIG. 12 is an operation flowchart of an interrupt process according to the second embodiment.

FIG. 13 is a diagram showing musical instrument timbres allocated on a vibrating body under three vibration sensors.

[Explanation of symbols]

101 Vibration body 102, 103 Vibration sensor 104 Switch unit 105 Power switch 106 Reset switch 107 Mapping switch 108 Display unit 109 Speaker 201 Piezoelectric element 202 Sucker 301, 304 Vibration detection unit 302, 305 Zero cross detection circuit 303, 306 Retriggerable one-shot Multivibrator 307 OR gate 308 CPU 309 ROM 310 RAM 311 Sound system 1002, 1003 Gate 1004 Inverter 1005 Control signal 1006 Drive signal

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G10H 1/00-1/46

Claims (7)

(57) [Claims] 1. A performance input device for an electronic musical instrument for generating musical sound data for causing the electronic musical instrument to perform a performance operation, wherein the performance input device is provided at different positions of a vibrating body to which vibration is applied by the performance operation.
A plurality of vibration detecting means which are detachably installed and detect the vibration applied to the vibrating body, and a maximum time difference which is a time for transmitting the vibration between the plurality of vibration detecting means on the vibrating body is set. Maximum time difference setting means; and a relative time difference time measuring means for measuring a relative time difference of vibration transmission time from when the vibration applied to the vibrating body by the playing operation reaches the plurality of vibration detecting means from the position where the vibration is applied. And a mapping means for converting the relative time difference measured by the relative time difference time measuring means into desired musical sound data based on the maximum time difference and outputting the desired musical sound data, and a mapping means for outputting the data. 2. A plurality of vibration detecting means which are detachably installed at different positions of a vibrating body to which vibration is applied by a playing operation, and which detect the vibration applied to the vibrating body; A maximum time difference setting means for setting a maximum time difference which is a time for transmitting the vibration between the vibration detecting means, and a plurality of the vibration detecting means from a position where the vibration applied to the vibrating body by the playing operation is applied from the position where the vibration is applied. Relative time difference timer means for measuring the relative time difference of the vibration transmission time until reaching the time, mapping for converting the relative time difference measured by the relative time difference time means into desired musical sound data based on the maximum time difference and outputting the desired musical sound data. Means for generating a tone signal based on tone data output from the mapping means. 3. The phase converted by the mapping means.
The performance input device for an electronic musical instrument according to claim 1, further comprising a mapping setting unit configured to set a correspondence relationship between a time difference and the musical sound data, or an electronic device using the same. Musical instruments. 4. The electronic device according to claim 1, wherein the tone data converted by the mapping unit in accordance with the relative time difference is pitch data of a tone. Musical instrument performance input device or electronic musical instrument using it. 5. The electronic musical instrument according to claim 1, wherein the tone data converted by the mapping unit in accordance with the relative time difference is tone color data of a tone. Performance input device or electronic musical instrument using it. 6. The display device according to claim 1, further comprising display means for displaying each of the tone data converted by the mapping means in accordance with the relative time difference. An electronic musical instrument performance input device or an electronic musical instrument using the same. 7. The installation position of the plurality of vibration detecting units installed on the vibrating body by a player by detecting that the maximum time difference set by the maximum time difference setting unit is not an appropriate value. The performance input device for an electronic musical instrument according to any one of claims 1 to 6, further comprising an error detecting means for causing the player to recognize that the musical instrument is in use, or an electronic musical instrument using the same.