JPH07319470A - Electrical signal outputting shamisen - Google Patents

Abstract

PURPOSE:To extend the range of playing activities by using a SHAMISEN (a Japanese stringed musical instrument) as the SHAMISEN if a plectrum is used to play it and by using the SHAMISEN as a guitar if fingers are used to play it and converting the SHAMISEN playing sounds and the guitar playing sounds into electrical signals directly from the body to the SHAMISEN without impairing the tone qualities and colors. CONSTITUTION:Transducers such as a sensor 1 or a microphone are arranged in the bottom surface recessed section of a bridge 12, i.e., the internal surface of a body upper surface 10b so as to pick up the vibration of the body. The picked up signals are amplified and outputted to an external by a cylindrical combined body 15 arranged inside the body and combining an output jack with a preamplifier. By using external tone control and a power amplifier, large output signals are obtained and a playing is accomplished also with other electrical musical instruments. Thus, the instrument is used as a SHAMISEN or a guitar and the range of playing activities is extended. Moreover, since the preamplifier is provided inside the body, high S/N signals are obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shamisen of a Japanese musical instrument, and more particularly to a shamisen if it is repelled without sticking to the animal skin that converts the performance sound of the acoustic instrument, the shamisen, into an electric signal and outputs it. It is related to the shamisen that can be played by the guitar with the shamisen technique.

[0002]

2. Description of the Related Art As described above, the shamisen is originally an acoustic instrument, and as is well known, a film of animal hide or the like is placed on the surface of a wooden body, and a rod is extended from the body to form a rod. A bobbin is provided at the tip of the bobbin, and a thread is stretched between the bobbin and the end of the body, and the thread is repelled to generate a performance sound.

In such a configuration, the volume of the performance sound to be output is necessarily limited, and it is impossible to obtain a constant volume. Moreover, the animal skin was torn during use, and the animal skin had to be replaced within a short period of time. Therefore, when a large volume is required, such as when playing in a large hall or outdoors, or when performing with an orchestra, or with an electric musical instrument, a microphone is used to amplify the output. It is being played back from the speaker. Also, it was difficult for those who can play the shamisen to learn the technique. The present invention enables a player playing a shamisen to play a guitar very easily.

[0004]

The above-mentioned microphone may be of a stand type or a tie pin type, but if it is of a stand type, the setting place is limited, so it is not always acoustic. In some cases, the desired sound quality or volume cannot be obtained, and since the position of the microphone is fixed, the movement of the performer is also restricted. Also, it was impossible to play the shamisen with a repellent and play the guitar with a fingernail.

If the microphone is a small microphone such as a tie pin type and is temporarily fixed to an appropriate portion of the musical instrument, the player can move freely, but the fixed portion of the musical instrument is fixed. It was difficult to obtain a large performance sound by the shamisen because it is difficult to select and it may be possible to pick up only the sound of a specific thread.

The present invention produces a guitar sound by the technique of the shamisen in the shamisen in which it is difficult to increase the performance sound, and in the shamisen in which it is difficult to replace the shamisen with a guitar, It is intended to provide a technique capable of obtaining a desired volume without impairing the sound quality of a tick shamisen.

[0007]

According to the present invention, there is provided a shamisen comprising a transducer for converting a vibration of a body into an electric signal, and a preamplifier arranged inside the body for amplifying an output of the transducer. The transducer can be solved by arranging the transducer in the concave portion on the lower surface of the piece.

Further, the above problem is that in a shamisen provided with a transducer for converting the vibration of the body into an electric signal and a preamplifier arranged inside the body for amplifying the output of the transducer, the transducer is provided on the inner surface of the body on the lower surface of the piece. It can be solved by arranging in.

Further, the above problem can be solved even if the transducer is a body axis type sensor or a microphone.

[0010]

[Function] A transducer for converting mechanical vibration into an electric signal, which is placed in the recess of the shamisen body on the underside of the piece, does not pick up the skin, and it reliably picks up the vibration of the body of the shamisen and the piece and has a high fidelity. Converts into an electric signal with sound quality. By adjusting the contact with the bridge or the body, the degree of pickup for each thread of the shamisen can be adjusted.
Further, since the preamplifier arranged inside the barrel amplifies the signal and converts it into an output impedance suitable for output to the outside and outputs it from the shamisen body to the outside,
It is possible to obtain a signal with a good S / N ratio with less noise picked up. Also, if repelled and played, it becomes a shamisen scale, and if it is played with a nail, it becomes a guitar scale.

[0011]

The figures are all examples of the present invention.
FIG. 1 is a side sectional view of a main part, FIG. 2 is a bottom view with a lid removed, and FIG. 3 is a block diagram.

Reference numeral 10 denotes a shamisen body without a skin, which is formed of a body side surface 10a, a body upper surface 10b and a body lower surface 10c which are known frames. In the present embodiment, the three members are made of wood. The lower surface 10c of the body 10 has an opening 10d for mounting components inside the body 10. Reference numeral 18 denotes a rod extending from the body 10. A lid is attached to the opening 10d, but the illustration is omitted.

Reference numeral 1 is a sensor for picking up the vibration of the body or the bridge. In this embodiment, a known coaxial type transducer is used. The sensor 1 is arranged so as to be housed in a recess provided in the lower surface of the upper surface 10b of the body 10 at the position of the bridge 12. 11 is a thread fixing portion at the end of the body 10, 13
Is one of three threads stretched between the thread fixing portion and a thread winding (not shown).

Reference numeral 14 is a lead wire for leading out the output of the sensor, and a small hole is formed in the surface of the upper surface 10b of the body and penetrates it. Reference numeral 15 is a cylindrical shape in which a preamplifier circuit for amplifying the output signal of the sensor derived by the lead wire 14 and for performing impedance matching with the subsequent stage and an output jack for guiding the output to the outside are integrated. , Which is a composite of a preamplifier and a jack, 16 is a plug which is inserted into the output jack and is connected to an external tone control amplifier or the like, which is separate from the main body of the shamisen, and 17 is a connecting conductor thereof. .

A block diagram of the circuit is shown in FIG. Reference numeral 1 is a sensor as the transducer, 2 is a preamplifier that amplifies the output signal of the sensor, and 3 is a power supply unit including a dry battery for supplying power to the preamplifier.

The output signal of the preamplifier 2 is connected to an output jack 4, and a plug 5 is inserted into the output jack 4 so that the output is led out from the shamisen body to the outside. A tone control amplifier 6 connected to the plug 5 adjusts the input signal by adjusting means (not shown) so that the input signal has a desired frequency characteristic. Reference numeral 7 denotes a power amplifier, which amplifies the signal whose sound quality is adjusted by the tone control amplifier 6 and outputs the amplified signal through a speaker 8.

When the shamisen constructed as described above is repelled or played as a guitar, the vibration of the body 10 or piece 12 picked up by the sensor 1 is amplified by the preamplifier 3 via the lead wire 14, and the output jack 4 is produced. From the outside through the plug 5, the tone control amplifier 6 controls the frequency characteristic to obtain a desired sound quality, and the power amplifier 7 power-amplifies the power to drive the speaker 8 to produce an acoustic output.

When the sensor 1 is attached, the state in which the piece 12 is attached to the concave portion, so-called "hit"
It is possible to adjust the volume balance of the three threads by adjusting.

In this embodiment, the coaxial type transducer is used as the sensor as described above. However, the present invention is not limited to this. For example, a known transducer such as a condenser microphone or a dynamic microphone may be used. , The desired effect is obtained.

In the present embodiment, the above-mentioned transducer is mounted on the upper surface of the body below the body, but it is possible to obtain acoustically appropriate vibration inside the body, such as a portion on the back surface of the body which contacts the back side of the body. You may arrange in a place.

Further, the shamisen may be a serpentine line (three lines), and the surface of the body may be a wooden plate to obtain the effect according to the purpose.

In this embodiment, the preamplifier circuit arranged inside the body is configured as a jack and a composite body. However, depending on the purpose, individual parts may be assembled to form a discrete structure. There is no problem.

[0023]

As described above, according to the present invention, the shamisen, which has not been able to obtain a large volume, is arranged with a transducer such as a sensor or a microphone on the inner surface of the bridge or the body to pick up the vibration. Therefore, a large volume can be obtained with high fidelity, and it becomes possible to perform a concert with an electric musical instrument, thereby expanding the range of activity. In addition, since a preamplifier is installed inside the body, a signal with a good S / N ratio can be obtained, and when it is used for repelling, it can produce a shamisen sound, It is capable of producing sound, is easy to manufacture and assemble because the trunk is not covered with the skin, and can reduce the time and effort required for replacing the skin and the cost for collecting the skin. Also, it is difficult for a person who can play the shamisen to learn the guitar, but if the shamisen of the present invention is used, the shamisen and the guitar can be distributed and used.
You can easily learn the guitar without the need to prepare a guitar.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is a bottom view of the embodiment of the present invention with the lid body removed.

FIG. 3 is a block diagram of the circuit of the present invention.

[Explanation of symbols]

 1 Sensor (Transducer) 2 Preamplifier 3 Power Supply Section 4 Output Jack 5 Plug 6 Tone Control Amplifier 7 Power Amplifier 8 Speaker 10 Body 10a Body Side 10b Body Top 10c Body Bottom 10d Opening 12 Piece 13 Thread 15 Preamp and Output Complex with Tojack

Claims (4)

[Claims] 1. A shamisen comprising a transducer for converting a vibration of the body into an electric signal, and a preamplifier arranged inside the body for amplifying an output of the transducer, wherein the transducer is arranged in a recess of the body on a lower surface of the piece. A shamisen that outputs an electrical signal. 2. A shamisen comprising a transducer for converting a vibration of the body into an electric signal and a preamplifier arranged inside the body for amplifying an output of the transducer, wherein the transducer is arranged on an inner surface of the body on a lower surface of the bridge. A shamisen that outputs an electrical signal. 3. The shamisen for outputting an electric signal according to claim 1, wherein the transducer is a body axis type sensor. 4. The shamisen for outputting an electric signal according to claim 1, wherein the transducer is a microphone.