JP2013238853A5

JP2013238853A5 -

Info

Publication number: JP2013238853A5
Application number: JP2013089659A
Authority: JP
Filing date: 2013-04-22
Publication date: 2015-12-10
Anticipated expiration: 2032-10-25

Description

更に、本発明に係る弦楽器において、弦励振部は、励振器とともに、変換器を含む構成とすることもできる。前記励振器は、前記弦の弦単線毎に備えられ、前記弦単線を個別に励振する。前記変換器は、前記弦の弦単線毎に備えられ、その振動を電気信号に変換する。このタイプの弦楽器では、弦単線に僅かな振動が生じると、その振動が変換器によって検出され、変換器によって電気信号に変換される。その電気信号は、増幅回路等を経て、当該弦単線に備えられた励振器にフィードバックされる。励振器は、フィードバック信号によって当該弦単線を励振する。これにより、正帰還型の発振回路が形成される。

Furthermore, in the stringed musical instrument according to the present invention, the string excitation unit may include a converter in addition to the exciter. The exciter is provided for each single string of the strings, and individually excites the single strings. The converter is provided for each single string of the strings, and converts the vibration into an electric signal. In this type of stringed instrument, when a slight vibration occurs in a single string, the vibration is detected by a transducer and converted into an electrical signal by the transducer. The electric signal is fed back to an exciter provided in the single string through an amplifier circuit or the like. The exciter excites the single string by a feedback signal. As a result, a positive feedback oscillation circuit is formed.

Claims

A stringed instrument including a body part, a string, a string excitation part, and a bridge,
The body part supports the string, the string excitation part, and the bridge,
The chord has a chord length determined by a distance between the first support point and the second support point;
The bridge has the first support point;
The string excitation unit is driven by an electric signal, and gives an excitation signal corresponding to the electric signal to the string for excitation.
The electrical signal is
Supplied from the outside through a jack provided in the body part,
It is obtained by converting external sound with a microphone provided in the body part, or
It is generated in a positive feedback oscillation circuit loop including the string excitation unit and the string.
Stringed instrument.

The stringed instrument according to claim 1, wherein the following (a) to (d):
(A) The bridge includes the first support point and a surface that is closer to the second support point than the first support point and contacts the string when the string vibrates.
(B) The bridge includes the first support point, and a surface that is closer to the second support point than the first support point and contacts the string when the string vibrates,
The body portion has an internal space,
The string, the string excitation part, and the bridge are arranged in the internal space of the body part,
(C) The bridge includes the first support point and a surface that is closer to the second support point than the first support point and contacts the string when the string vibrates.
The string and the bridge are disposed on the outer surface of the body part,
(D) The bridge has a structure having the first support point and having no portion that contacts the string when the string vibrates on the second support point side of the first support point.
The body portion has an internal space,
The string, the string excitation part, and the bridge are arranged in the internal space of the body part,
A stringed instrument that satisfies either

The stringed instrument according to claim 1 or 2,
The string excitation unit includes an exciter and a converter,
The exciter is provided for each single string of the strings, and individually excites the single strings.
The converter is provided for each single string of the strings, and converts the vibration into an electrical signal.
The exciter, the converter and the string constitute the positive feedback oscillation circuit loop.
Stringed instrument.

The stringed musical instrument according to any one of claims 1 to 3, comprising a tuning peg,
The peg includes a knob portion, and the knob portion is disposed outside the body portion.
Stringed instrument.