JP6397167B2 - Solid body type electric acoustic guitar - Google Patents

Description

  The present invention relates to a solid body type electric acoustic guitar.

  In general, acoustic guitars and electric guitars are known as stringed instruments. The acoustic guitar has a resonance hole (called a hollow body) in the body (body) that composes the instrument body, and when the strings are squeezed, the vibration vibration of the strings is generated in the body. It has become. Since an acoustic guitar does not involve electrical amplification of sound, there is a strong tendency that an expected volume cannot be secured in a wide space such as a concert hall.

  On the other hand, in many cases, the electric guitar uses a solid body that does not have a resonance hole in the body, and can obtain a tone characteristic of an electric guitar that does not resonate due to the resonance hole. Since the electric guitar is equipped with a dedicated pickup and has a function of electrically amplifying the sound, the expected sound volume can be secured even in a concert hall or the like.

  Furthermore, an electric acoustic guitar (commonly known as an electric acoustic guitar) is also provided in which a pickup is attached to an acoustic guitar having a resonance hole so that a performance sound can be output at a high volume from an amplifier or the like.

  However, when a performance was performed using a hollow body type eleco, there was an adverse effect that the sound reverberated too much at the resonance hole and howling occurred. On the other hand, in order to prevent the occurrence of howling, a solid body type eleco having no resonance hole has been proposed (for example, see Patent Document 1). In the eleco described in Patent Document 1, an audio signal based on string vibration detected by a pickup built in a solid body is processed to electronically simulate the tone of an acoustic guitar having a resonance hole. Yes.

Japanese Patent Laid-Open No. 9-244636

  According to the eleako described in Patent Document 1, since there is no resonance hole, there is an advantage that howling does not occur even if the performance is performed at a high volume. However, the timbre of an acoustic guitar is generated electronically by processing an audio signal based on the vibration of a string detected by a pickup and simulating the sound of a resonance hole. Therefore, the output sound is only an electronic sound, and there is a problem that the sound is closer to the electronic sound of an electric guitar than the raw sound of an acoustic guitar.

  Several solid body type elecos are commercially available (for example, brand name: Crafter, model number / model name: CT-120, etc.). According to the commercially available solid body type eleco, compared to the solid body type eleco described in Patent Document 1, it is possible to output sound that is close to the acoustic sound of an acoustic guitar by the amount that is not an electronic simulated sound. It seems to be. However, since there is no resonance body peculiar to an acoustic guitar, there is still room for improvement in order to bring it closer to the acoustic guitar's raw sound.

  The present invention has been made to solve such problems, and it is an object of the present invention to realize a timbre closer to the acoustic sound of an acoustic guitar in a solid body type eleco that can prevent the occurrence of howling. To do.

  In order to solve the above-described problems, in the present invention, Southern yellow pine is used as a body material in a solid body type eleco.

  It is known that the timbre of the performance sound output from the guitar has a very high correlation with the timbre or texture of the wood used. The present applicant pays attention to this point, and as a result of creating an electric acoustic guitar using Southern yellow pine as a solid body material, the present inventor has found that a tone closest to the raw sound of an acoustic guitar can be realized. That is, according to the electric acoustic guitar of the present invention using the southern yellow pine as the body material as described above, it is possible to realize a timbre closer to the raw sound of the acoustic guitar.

It is a figure which shows the structural example of the solid body type electric acoustic guitar by this embodiment. It is a figure which shows the timbre analysis result of the solid body type | mold electric acoustic guitar by this embodiment with a comparative example.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a solid body type electric acoustic guitar (hereinafter simply referred to as an electric acoustic guitar 10) according to the present embodiment.

  In FIG. 1, an eleco 10 includes a body 1 having a substantially bowl-shaped plane, a neck 2 extending from the body 1, and a string 4 stretched along the neck 2. Has been.

  The body 1 is provided with a bridge 11 that fixes one end side of the string 4. The bridge 11 is provided with an in-bridge type piezo pickup (not shown).

  Inside the body 1 is provided a preamplifier (not shown) for amplifying an electric signal detected by a piezo pickup. The electric signal detected by the piezo pickup is amplified by a preamplifier and then sent to an external amplifier via a connection cord connected to a jack (not shown).

  In this embodiment, Southern yellow pine is used as the material of the body 1. The bridge 11 is made of rosewood, and the neck 2 is made of maple (maple neck and maple fingerboard, that is, a maple one-piece neck). Southern yellow pine is a general term for slash pine (Eliot pine), long leaf pine, short leaf pine, loblolly pine, etc., and is a conifer of the pine family Pinus. In pine, the wood is classified as hard and is generally used for building materials, flooring, wooden boxes, plywood, pulp, lanes for bowling alleys, etc.

  Traditionally, Southern Yellow Pine has never been used as a guitar body material. This is because the property of strength and excellent wear resistance has been considered to be unrelated to the use of the guitar. However, when the present applicant dared to make a prototype of the solid body type eleako 10 using this Southern yellow pine as the material of the body 1, it was found that a tone very close to the acoustic sound of an acoustic guitar can be realized.

FIG. 2 is a diagram showing a timbre analysis result of the electric acoustic guitar 10 according to the present embodiment together with a comparative example. The following two were used as comparative examples.
・ Acoustic guitar (Brand name: Martin, Model number / Model name: D-28)
・ Solid body type eleako (brand name: Crafter, model number, model name: CT-120)

  In the timbre analysis experiment, after recording the stroke performance sound of the acoustic guitar (D-28) of the present embodiment, the acoustic guitar (D-28) as the comparative example 1, and the acoustic guitar (CT-120) as the comparative example 2 with the measurement microphone, Frequency analysis was performed on the recorded audio. The electric acoustic guitar 10 of the present embodiment and the electric acoustic guitar (CT-120) of Comparative Example 2 were connected to the same acoustic amplifier (SX AGA-1065: manufactured by Shield Fender) to perform a stroke performance.

  FIG. 2 shows the result of this frequency analysis, where the horizontal axis represents time, and the vertical axis represents frequency (position of harmonics). The color shading indicates the relative signal strength, and the darker the color, the stronger the relative signal strength. 2A is an acoustic guitar (D-28) of Comparative Example 1, FIG. 2B is an electric acoustic guitar 10 of the present embodiment, and FIG. 2C is a frequency analysis of an electric acoustic guitar (CT-120) of Comparative Example 2. Results are shown.

  As is clear from FIG. 2, in the eleco 10 of the present embodiment, compared to the eleco (CT-120) of the comparative example 2, the frequency position of the same harmonic as the acoustic guitar (D-28) of the comparative example 1 is the same. It can be seen that a certain level of signal strength appears. As described above, according to the present embodiment, it is possible to realize a timbre that is very close to the raw sound of an acoustic guitar as compared with a commercially available solid body type electric acoustic guitar.

  In the above embodiment, an example in which rosewood is used as the material of the bridge 11 and maple is used as the material of the neck 2 has been described, but the material to be used is not limited to this. For example, as a material of the neck 2, a material often used in a conventional guitar, such as a rose fingerboard for a maple neck and a rose fingerboard for a mahogany neck, may be used.

  In addition, the said embodiment is only what showed the example in implementation in implementing this invention, and, as a result, the technical scope of this invention should not be interpreted limitedly. That is, the present invention can be implemented in various forms without departing from the gist of using Southern yellow pine as a body material or its main features.

1 Body 2 Neck 4 String 10 Solid Body Electric Acoustic Guitar 11 Bridge

Claims (1)

In solid body type electric acoustic guitar,
Solid body type electric acoustic guitar characterized by using Southern Yellow Pine as the body material.

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