JP2573424Y2 - Electronic soundboard percussion instrument - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an electronic soundboard percussion instrument which generates a musical sound having a note name corresponding to a soundboard by a percussion operation of the percussion body on the soundboard, and particularly to a musical sound of a musical sound. Related to control of properties or effects.

[Conventional technology]

Conventionally, multiple sound plates are provided corresponding to multiple sound names, and each sound plate is struck in the same way as a natural sound plate percussion instrument, thereby electronically generating musical sounds corresponding to the sound name of the struck sound plate A so-called electronic percussion instrument is known (for example, one described in JP-A-61-239299).

In such a conventional electronic sound board percussion instrument, control of the tone characteristics, that is, switching of the tone color of the tone, silencing of the tone being produced, addition of various effects such as tremolo, vibrato, sustain, etc. to the tone are performed by the instrument main body. Can be controlled by operating a switch provided in the system.

Therefore, it is possible to enjoy performances of various tone colors by hitting operation, and various performance expressions are also possible.

Also, by detecting the striking intensity and striking position of the sound plate and controlling the tone characteristics such as pitch, timbre, and volume according to the striking intensity and striking position, various performance expressions are possible. There is also.

[Problems to be solved by the invention]

However, since conventional electronic sound board percussion instruments control the tone characteristics by operating switches provided on the instrument body, the tone characteristics are changed during the percussion performance while holding the percussion body in both hands. It was almost impossible to do so because it hindered the performance.

Also, even if the user is hit with the left or right mallet and then operates the switch with his / her foot, the generated tone is controlled by the same tone characteristic even if the tone characteristic being generated is controlled. Because of that, the performance expression was also limited.

The object of the present invention is to make it possible to control musical tone characteristics with good operability during a performance, and to provide musical characteristics of musical tones generated sequentially in response to a striking operation on each sound plate by each striking body. The purpose of the present invention is to provide a variety of performance expressions by changing the tone characteristics individually by means of the provided tone characteristic indicating means.

[Means for solving the problem]

 The means of the present invention are as follows.

A plurality of sound boards are provided corresponding to a plurality of note names, for example, similar to a sound board arrangement of a natural sound board percussion instrument.

The plurality of impacting bodies are formed, for example, in a mallet shape. A tone characteristic instructing means for instructing a characteristic of a musical tone is provided at a position on each hitting body where the player can easily operate.

The tone characteristic instructing means instructs variable control of various characteristics such as, for example, tone color, pitch volume, sustain, tremolo, vibrato, etc., and comprises, for example, a push button type switch or a rotary type volume.

Further, the first sensor means is, for example, a pressure-sensitive sensor which independently detects the impact of each of the plurality of sound plates, and is provided, for example, in the main body of each sound plate.

The second sensor means is a sensor for independently sensing the impact operation of the plurality of impacting bodies for each impacting body, and includes, for example, a pressure-sensitive element, conductive rubber, or the like.

The musical sound generating means generates a musical sound having a pitch name corresponding to the sound plate on which the impact is detected by the first sensor means.

The musical tone control means is configured to convert the musical tone of the musical tone generated by the musical tone generating means into a musical tone characteristic indicated by the musical tone characteristic instructing means provided on the hitting body whose impact operation is detected by the second sensor means. Variable control is performed according to the instruction signal.

Further, when a tone characteristic indicating signal is transmitted from the tone characteristic indicating means by radio waves, a receiving means for receiving the signal is provided in the musical instrument body provided with each sound plate.

[Action]

 The operation of the present invention is as follows.

When the striking body strikes the sound plate, the striking of the sound plate is sensed by the first sensor means, and the striking operation of the striking body is sensed by the second sensor means.

The musical sound generating means generates a musical sound having a pitch name corresponding to the struck sound plate based on the sense signal sensed by the first sensor means.

Further, the musical sound control means detects a hitting body which has been hit by the striking operation based on the sense signal sensed by the second sensor means, and the musical tone specified by the musical sound characteristic indicating means provided on the hitting body. The characteristic of the tone generated by the tone generating means is variably controlled based on the characteristic instruction signal.

In this way, when the sound plate is hit by the hitting body, the musical sound having the pitch name corresponding to the hit sound plate has the tone characteristic indicated by the tone characteristic indicating means provided on the hitting body on which the hitting operation has been performed. It is controlled according to the instruction signal.

Therefore, by operating the tone characteristic indicating means provided on the hitting body, the tone characteristic can be easily variably controlled without interfering with the performance even during the performance, and the tone color, pitch, volume, etc. of the tone for each hit can be controlled. Various effects such as sustain, tremolo, vibrato, etc. can be freely added to the musical tone for each impact.

Also, when a tone characteristic instruction signal is transmitted by radio wave from the tone characteristic instruction means, the receiving means provided in the musical instrument main body includes:
Since the signal is received, there is no chord routing, so that a light hitting performance can be performed.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

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

The sound plate sensor 1A is a sensor provided on each sound plate 1 arranged in order of sound names corresponding to a plurality of sound names, and for sensing vibration of the sound plate 1. The detailed configuration of the sound plate sensor 1A will be described later. The sense signal sensed by the sound board sensor 1A is amplified by the amplifier 2 and input to the level detector 3.

The level detector 3 determines whether or not the sound plate 1 has been hit based on the sense signal output from the amplifier 2, and if hit, inputs striking data STD indicating the presence or absence of striking, striking intensity, and the like. Output to the detection circuit 4.

The input detection circuit 4 is composed of, for example, a microprocessor, scans the hit data STD output from the level detector 3 at a predetermined cycle, and when hit information is output, the hit information is output. The sound name information KDT corresponding to the sound plate 1 being output is created. And the note name information K
The DT is output to a left mallet tone generator circuit 8 or a right mallet tone generator circuit 9, which will be described later, according to the mallet that has been hit.

That is, when the sound plate 1 is hit with the left-hand mallet 5L, the left-hand mallet 5R
When the sound board 1 is hit by the sound source circuit 9 for the right mallet
Is output as the note name information KDT corresponding to the sound plate 1 struck by the sound. Further, the input detection circuit 4 creates the tone control information MCNTD comprising the amplitude envelope control information ENVC of the tone and the effect information EFD indicating the effect to be added to the tone based on the impact intensity information of the impact data STD. The name information is output to the left mallet tone generator 8 or the right mallet tone generator 9 that has output the name information.

The mallets 5L and 5R are mallet-shaped striking bodies for striking the sound plate 1, and are for left-hand operation and right-hand operation, respectively. As will be described in detail later, mallet
5L, 5R are provided with tone switch 41-43,
When operating the tone color selection switch 41 to 42 are output from the respective mallets Hidarion Irosetsu signal T _L, the Migineiro switching signal T _R input detection circuit 4.

Input detection circuit 4, mallet 5L (5R) tone switching signal outputted from the tone color selection switch 41 to 43 of the T _L a (T _R) are read in a predetermined period, the left timbre select T _L (right read the mallet on the basis of the tone color switch signal T _R) 5L (5R)
Create left timbre information (right timbre information) corresponding to the timbre specified by the timbre changeover switches 41 to 43 provided above,
The signal is output to the left mallet tone generator 8 (right mallet tone generator 9). The output of the left tone color information and the right tone color information may be performed only when the tone color designation is changed, for example.

The mallet 5L (5R) is further provided with a sensor 46, which will be described later, which detects vibration of the mallet portion 6L (6R). When the sound plate 1 is hit by the mallet 5L (5R), the sensor 46
Then, a sense signal corresponding to the vibration of the mallet portion 16L (16R) generated by the impact is output to the amplifier 6L (6R). Then, the sensor signal is amplified by the amplifier 6L (6R) and input to the level detector 7L (7R).

The level detector 7L (7R) determines whether or not the sound board 1 has been hit by the mallet 5L (5R) based on the input sense signal.
(Right ON signal MRO) is output to the input detection circuit 4.

Input detection circuit 4, if you enter a left ON signal MLO outputs an enable signal E _L which instructs the generation of the musical tone to the left mallets sound source circuit 8. When the right ON signal MRO is input, an enable signal E _R instructing generation of a musical tone is output to the right mallet tone generator 9.

Sound source circuit 8 for left mallet, sound source circuit 9 for right mallet
Reads each enable signal E _L, the pitch name information KDT being output from the input detection circuit 4 by E _R is applied, the musical tone control information NCNTD, a tone color information (Hidarineiro information TonL, Migineiro information TONR), their Name information based on the information of
A circuit that generates the tone of the tone indicated by KDT with the tone indicated by the tone information TONL (TONR). The volume of the tone is controlled by the envelope control information ENVC, and the echo indicated by the effect information EFD. And various effects such as reverb are added to the musical sound.

Sound source circuit 8 for left mallet and sound source circuit 9 for right mallet
Are output to a mixing circuit 10 and mixed by the mixing circuit 10 to be emitted as sound from an audio system 11 including an amplifier, a speaker, and the like.

When the sound plate 1 is hit with the left-hand operated mallet 5L by the above operation, the musical sound of the tone name corresponding to the struck sound plate 1 is sounded with the tone specified by the tone switch 41-43 on the left-hand operated mallet 5L. It is generated from the left mallet tone generator 8.
On the other hand, when the sound plate 1 is hit with the right-hand operated mallet 5R, the musical tone having the tone name corresponding to the struck sound plate 1 is played with the tone specified by the tone switch 41-43 on the right-hand operated mallet 5R. It is generated from the sound source circuit 9 for the right mallet. Then, two musical tones independently generated by the left mallet tone generator circuit 8 and the right mallet tone generator circuit 9 are mixed by the mixing circuit 10, and the mixed sound is emitted from the audio system 11 as sound. Tone switch 41-43 is mallet 5L
Since it is provided on the (5R), it is possible to easily and quickly switch the tone not only before the performance but also during the performance without hindering the performance.

Therefore, the tone changeover switches 41 to 43 on the mallets 5L and 5R
By performing a percussion performance by designating different timbres, it is possible to play one melody with a plurality of timbres while switching the timbres.

Further, when the sound plate 1 is hit with two mallets 5L and 5R at the same time, two musical tones are simultaneously generated with different tones.

 Thus, various performance expressions are possible.

FIG. 2 is a diagram showing a configuration example of the left mallet tone generator 8 and the right mallet tone generator 9. The above tone generator circuits 8, 9
Is latch circuit 21, frequency information ROM 22, accumulator 2
3. Waveform memory (PCM) 24, digital amplifier 25, envelope generator 26, digital signal processor (DS
P) 27 and a D / A converter 28.

Latch circuit 21 is for tone color information added from input / output detection 4
TonL (TONR), pitch information KDT, tone control information MCNTD (envelope control information ENVC, effect information EFD) to be latched by the enable signal E _L (E _R) is applied from the input detection circuit 4. Then, the pitch information KDT is stored in the frequency ROM 22.
To, and outputs the tone information T _L (T _R) in the waveform memory 24, the effect control information EFD to the digital signal processor 27 to the envelope generator 26 to the envelope control information ENVC.

The frequency information ROM 22 is a ROM (read-on-memory) that stores frequency data corresponding to each pitch.
When the note name information KTD is added, the frequency data F corresponding to the note name information KTD is output to the accumulator 23. The frequency data F is set such that the higher the tone, the larger the value.

The accumulator 23 is an accumulator that accumulates the frequency data F supplied from the frequency ROM 22.
Is accumulated and reaches a predetermined maximum value, the same operation is repeated again. Therefore, the larger the frequency data F, that is, the higher the pitch, the shorter the repetition period of the accumulation. Conversely, the lower the tone, the longer the repetition period of the accumulation. This repetition period corresponds to the period of the musical sound waveform. Therefore, the higher the tone, the higher the repetition frequency, that is, the frequency of the musical tone.

The accumulated value TF of the accumulator 23 is applied to the waveform memory 24 as a lower address signal. The waveform memory 24 stores tone color information from the latch circuit 21 as an upper address signal.
TONL (TONR) is added.

The waveform memory 24 stores PCM (Pulse Code Modutation) sample value data of a waveform for one cycle of the tone of various instrument sounds.
ROM (read-on-memory) that stores and stores the timbre information TONL (TONR) and an address signal composed of the accumulated value TF output from the accumulator 23.
The waveform sample value data WS of the musical sound waveform having the designated tone name of the tone color designated by the tone color information TONL (TONR) is read out from the waveform memory 24 and added to the digital amplifier 25.
In this case, the waveform sample value data WS
Is read according to the repetition frequency of the accumulator 23 described above, so that the waveform data applied to the digital amplifier 25 has the note name specified by the note name information KDT.

The digital amplifier 25 multiplies the waveform sample value data WS input from the waveform memory 24 by the envelope data ENVD added from the envelope generator 26 to generate a musical tone waveform DM of a designated timbre.

The envelope generator 26 adds envelope data ENVD having a predetermined amplitude to the digital amplifier 25 based on the envelope control information ENVC input from the latch circuit 21, and controls the volume of a musical tone based on the envelope control information ENVC.

The digital amplifier 25 multiplies the musical tone waveform sample value data WS input from the waveform memory 24 by the amplitude envelope data ENVD added from the envelope generator 26 to generate a digital musical tone signal DM, as described above. Output to the signal processor (DSP) 27. The digital signal processor 27 adds various effects such as reverb and echo to the digital musical sound signal DM input from the digital amplifier 25 based on the effect control information EFD input from the rat circuit 21, and outputs the digital sound signal DM to the D / A converter 28. Output. The D / A converter 28 converts the digital tone signal DMS input from the digital signal processor 27 into an analog tone signal AM and outputs it to the mixing circuit 10.

Configuration Example of Mallet 5L (5R) Next, FIG. 3 is an exploded view showing a configuration example of the mallet 5L (5R). The handle portion of the mallet 5L (5R) is formed by connecting the hollow cylinder 31 and the hollow tube 32, and a screw hole 33 and a screw hole 34 are provided before and after the hollow cylinder 31 which is the upper half portion of the handle portion. I have. Also, screw holes 35 and 36 are formed in the hollow cylinder 32 which is the lower half corresponding to the screw holes 33 and 34 of the hollow cylinder 31, and the hollow cylinder 31 and the hollow cylinder 32 are screwed with screws 37 and 38. The screws 33 and 34 are screwed into the screw holes 35 and 36 via the holes 33 and 34 to be joined. In the recess formed in the center of the hollow cylinder 32, a printed board 40 is provided.
On the printed circuit board 40, three push button type tone color selection switches 41, 42, 43 are placed. The tone color selection switches 41, 42, and 43 are switches for selecting respective tone colors of marimba, piano, and guitar. Then, cover cases 41a, 42a, 43a for covering the switches 41, 42, 43 are provided in portions of the hollow cylinder 31 corresponding to the tone color selection switches 41, 42, 43. Then, each time the cover cases 41a, 42a, 43a are pushed down, ON / OFF is alternately repeated.

A lead wire 44 is connected to the left end of the printed circuit board 40 in the drawing, and a cord 45 is connected to the right end thereof.
2, 43 is the code 45 via the wiring pattern on the printed circuit board 40
When the switches 41, 42, and 43 are turned on by pressing down, a predetermined electric signal (tone color switching signal) is output to the input detection circuit 4 via the cord 45. It has become so. The lead wire 44 is bifurcated at the center to form a loop, and the loop is formed by a screw hole 35.
Is fitted outside. Further, the other end of the lead wire 44 is the sensor
The distal end of the pressure-sensitive element 46 is fitted in a circular recessed part (not shown) formed at the rear end of a columnar cushioning member 47. Also,
The buffer member 47 is adapted to be fitted inside the fitting portion 16a of the mallet portion 16L (16R). The pressure sensing element 46 is a hollow cylinder
32, and the mallet portion is
16L (16R) and handle are combined.

When the mallet 16L (16R) is hit, the mallet 16
The vibration of L (16R) is transmitted to the pressure-sensitive element 46 while the shock is weakened by the buffer member 47. The pressure sensing element 46 outputs a sense signal corresponding to the vibration, and the sense signal
It is output to the control circuit 1 via 44, the printed circuit board 40, and the code 45. The magnitude of this sense signal is proportional to the strength of the hit.

Since the tone color selection switches 41, 42, and 43 are provided at positions where the player of the mallet 5L (5R) can easily operate, the tone can be instantaneously switched by a simple operation even during the performance.

Configuration Example of Sound Plate 1 FIG. 4 is a diagram showing a cross-sectional structure of one configuration example of the sound plate 1 provided with the sound plate sensor 1A.

The sound plate 1 is composed of three lower electrode members 61L, 61C, 61R separately provided in parallel on the insulating substrate 60, and the lower electrode members 61L, 61R.
A conductive elastic member 62 formed over the upper surface of C, 61R, an upper electrode member 63 provided on the upper surface of the conductive elastic member 62, and an insulating skin member laminated on the upper electrode member 63.
It consists of 64. The conductive elastic member 62 is made of, for example, foamed conductive rubber (specific resistance of about 1 to 10 [Ωcm]), and the upper electrode member 63 is made of, for example, highly conductive rubber (specific resistance of about 10 ⁻² [Ωc].
m]). Further, the skin member 64 may be made of insulating rubber, and may be formed continuously with the skin members of other sound plates.

Then, the upper electrode member 63, the terminal T is connected, the lower electrode members 61L, 61C, respectively terminals T _L, is T _C, T _R is connected to the 61R. Resistors R _L , R _C , and R _R are formed between the terminal T and the terminals T _L , T _C , and T _R , respectively.

Further, the sound plate sensor 1L is constituted by the upper electrode member 63, the conductive elastic member 62, and the lower electrode member 61L. Similarly, the upper electrode member 63, the conductive elastic member 62, and the lower electrode member 6 are formed.
The sound board sensors 1C and 1R are constituted by 1C and 61R. That is, the sound plate sensor 1A is composed of three sound plate sensors 1L, 1C, and 1R that sense vibration at each of the three divided positions of the sound plate.

By mallet part 16L (16R) of mallet 5L (5R),
When the upper surface of the sound plate is hit, the upper electrode member 63 and the lower electrode member
The distance between 61L, 61C, 61R is reduced, and the conductive elastic member 62
Has a reduced specific resistance. For this reason, the resistance values of the resistances R _L , R _C , and R _R of the sound board sensors 1L, 1C, 1R decrease. The change in the resistance values of the resistances R _L , R _C , and R _R is greatest for the sound sensor near the striking position. As described above, the sound board sensors 1L, 1C, and 1R have resistance values R
The intensity of the impact is sensed by the change of _L , R _C , and R _R. Changes in the resistance values R _L , R _C , and R _R of the sound board sensors 1L, 1C, 1R are converted into electric signals and output to the level detector 3 via the amplifier 2. Therefore, electric signals corresponding to the vibration of each part of the sound board are output from the sound board sensors 1L, 1C, 1R.

As described above, since the sound plate sensors 1L, 1C, and 1R are independently provided at three places of one sound plate 1, it is possible to reliably detect the sound of the sound plate 1 regardless of the hit position of the sound plate 1. By comparing the magnitudes of the sense signals of the divided portions of the sound plate 1, it is possible to detect which divided portion of the sound plate 1 has been hit, that is, the hit position. Further, since the impact strength can be detected for each divided portion, it is possible to finely control the volume (envelope control information ENVC) based on the impact intensity of each divided portion. For example, the impact strength of each divided portion may be summed, and the volume may be set in proportion to the total value, or the volume may be set based on the maximum value of the impact intensity of each divided portion. You may make it.

Further, an effect to be added to the musical sound is set based on the striking strength of each divided portion of the sound plate 1. For example, if the impact strength of the left divided portion of the sound plate 1 is equal to or higher than a predetermined level, an echo is added to the musical sound. Is added.

Also, other effects such as delay and reverb may be added without being limited to echo and chorus.

Second Embodiment FIG. 5 is a system configuration diagram of an electronic sound board percussion instrument according to a second embodiment. Although not shown, the left mallet tone generator 8, the right mallet tone generator 9, the mixing circuit 10, and the audio system 11 shown in FIG. 1 are provided with the same connection configuration.

In the third embodiment, a left ON signal (right ON signal) indicating the presence or absence of a hit by the mallet portion 6L (6R) of the mallet 5L (5R) is provided in the mallet 5L (5R).
According to 102, FM modulation (Frequency Modulation) is performed and transmitted by radio waves. The FM-modulated radio wave is received by an FM radio wave receiving circuit 102 provided on the instrument body GH side, demodulated, and output to the input detection circuit 4.

As described above, the presence / absence of a hit operation by the mallet 5L (5R) and the tone switching signal set by the tone switching switches 41 to 43 are transmitted from the mallet 5L (5R) side to the musical instrument main body GH side by wireless communication by FM modulation. Thus, the cord 45 for connecting the mallet 5L (5R) to the instrument body side is not required. For this reason,
Because you can play without worrying about the chord,
The operability of the performance is improved as compared with the first embodiment.

In the above-described embodiment, the impact operation of the mallet is detected by the pressure-sensitive element. However, a conductive rubber having a ring shape is built in the mallet portion, and the contraction of the conductive rubber caused by the impact at the time of the impact operation is performed. The impact operation may be detected using the change in impedance caused by the impact.

Also, the number of switches provided on the mallet is not limited to three as in the above-described embodiment, and a greater number of switches may be provided. Further, the designation of various other effects such as sustain, tremolo, vibrato and the like may be used.

[Effect of the invention]

According to the present invention, there is provided a musical sound characteristic indicating means for outputting a musical sound characteristic indicating signal for indicating a characteristic of a musical sound for each of the hitting bodies, and independently detects a hitting operation by each of the hitting bodies to obtain a sound which has been hit. The tone of the note name corresponding to the plate is controlled by the tone characteristics specified by the tone characteristic indicating means on the hit body on which the hitting operation has been performed, so that the characteristic of the tone is determined during the performance by each hitting body. It can be controlled freely every time.

Also, it is possible to change the tone characteristics of the musical tone, pitch, volume, etc., for each impact, and also to change the effect of sustain, vibrato, tremolo, etc. for each impact and to add them to the musical tone. For example, it is possible to perform a variety of performances, such as performing one melody sound with a plurality of timbres while freely changing it.

Further, according to the present invention, when a tone characteristic instruction signal is transmitted by radio waves from the tone characteristic instruction means provided for each hitting body, the signal is received by the receiving means provided on the tone body. Therefore, there is no trouble in playing due to the arrangement of the chords, and it is possible to perform a light hitting performance.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a first embodiment of an electronic sound board percussion instrument according to the present invention, FIG. 2 is a block diagram showing a circuit configuration of a tone generator circuit according to the first embodiment, and FIG. 3 is a first embodiment. FIG. 4 is an exploded view showing one configuration example of a mallet, FIG. 4 is a sectional view showing one configuration example of a sound plate, and FIG. 5 is a system configuration diagram of a second embodiment of an electronic sound plate percussion instrument according to the present invention. 1 ... Sound plate, 1A ... Sound plate sensor, 4 ... Input detection circuit,
5L (5R): Mallet, 8: Sound source circuit for left mallet,
9: sound source circuit for right mallet, 16L (16R): mallet part, 41, 42, 43 ... switch, 46 ... pressure sensitive element, 101: F
M radio wave transmission circuit, 102 FM radio wave reception circuit.

Claims (2)

(57) [Scope of request for utility model registration] 1. A plurality of sound plates provided corresponding to a plurality of tone names, first sensor means for sensing a strike of the sound plate and outputting a corresponding sense signal, and the plurality of sound plates A plurality of striking bodies for performing a striking operation, a second sensor means for independently sensing individual striking operations of the plurality of striking bodies, and outputting a corresponding sense signal; and Based on the sense signal, a musical sound generating means for generating a musical sound having a pitch name corresponding to the sound plate on which the percussion is detected, and a characteristic of the musical sound generated by the musical sound generating means, which is provided for each of the plurality of percussion bodies. A tone characteristic instructing means for outputting a tone characteristic instructing signal for individually instructing, and a tone having a tone name generated by the tone generating means based on the sense signal output from the second sensor means. The music specified by the musical sound characteristic specifying means According to the characteristics command signal, an electronic tone plate percussion instrument, characterized by having the musical tone control means for variably controlling the independently. 2. A musical instrument main body provided with the plurality of sound plates, and a receiving means provided on the musical instrument main body for receiving the tone characteristic instruction signal transmitted by radio waves from the hitting body. The electronic soundboard percussion instrument according to claim 1, characterized in that: