KR19990039508A - Gayageum and Lyre Sound Amplifiers - Google Patents

Abstract

The present invention relates to a device for amplifying the sound of a gayageum or lyre. In particular, the present invention provides a plurality of small microphones, each inserted into a foot or a foot supporting a plurality of strings of the gayageum or lyre, a plurality of first amplifiers and one second amplifier for amplifying a signal output from the microphones; It consists of an output part, and this 1st amplification part, a 2nd amplification part, and the electronics part which an output part is built in, and electrically amplifies the sound of a gayageum or a lyre.

Description

Gayageum and Lyre Sound Amplifiers

The present invention relates to an apparatus for electrically amplifying the sound of a gayageum or lyre.

In the past, electronic devices for amplifying the sound of gayageum or lyre were not found, and since the strings of the gayageum or lyre were made of silk, the acoustic amplification device used in electronic strings using steel as a string The application was not possible, and the acoustic amplification device in which the microphone was simply attached to or built into the instrument had a problem that its function and sound characteristics were remarkably inferior due to the resonance phenomenon inside the instrument.

In order to solve the problems as described above, in the present invention, the sound is amplified by using a foot or a foot to which a microphone for individually picking up vibrations of the strings of each string instrument is inserted.

1A is a cross-sectional view of an ankle with microphones installed, in accordance with the present invention;

1B is a cross-sectional view of a suspension in which a microphone is installed, in accordance with the present invention;

FIG. 2A is a view showing a gayageum in which the ankle of FIG. 1A is provided and a circuit portion is built in,

FIG. 2B is a diagram showing a lyre with a hook of FIG.

3 is a circuit diagram of an electronic device unit for amplifying and outputting sound.

* Explanation of symbols for main parts of the drawings

1 --- Ans, 1 '---

2 --- strings, 3 --- microphones,

4 --- lead wire, 5 --- acoustic pickup hole,

6 --- lead-through hole, 7 --- lead-in hole,

8 --- cut, 9 --- gayage,

9 '--- Lyre, 11 --- Electronics.

The present invention provides a plurality of small microphones, each inserted into a foot or a foot supporting a plurality of strings of a gayageum or a lyre, and a plurality of first amplifiers and one second amplifier and outputs for amplifying a signal output from the microphones. And an electronic device unit in which the first amplifier, the second amplifier, and the output unit are embedded. Here, the number of microphones and first amplifiers is present by the number corresponding to the strings of each instrument.

(Example)

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

1A and 1B show cross-sectional views of an ankle and a suspension supporting a string in a gayageum or a lyre. When the player plays the stringed instrument and the string 2 vibrates, the microphone MIC embedded in the foot and the needle picks up the vibration.

Herein, the microphone inserted into the ankle is cut off the cutout portion 8 and the groove is formed in the portion where the microphone is to be inserted, and after the microphone is inserted, the cutout portion 8 is closed again. In addition, the microphone inserted into the stylus inserts the microphone after the groove is formed in the lower end of the stylus. Therefore, in the hanging needle used in the lyre, the cutout, the lead insertion hole and the lead through hole used in the foot are not necessary, and the microphone is directly connected to the electronic device part through the interior of the lyre.

On the other hand, the picked-up electrical signal is transmitted to the electronic device portion 11 via the lead 4 connected through the lead insertion hole 7 and the lead through hole 6. At this time, in the gayageum, each of the conductive wires drawn from each of the ankles is collected in the ankles 12 and transferred to the electronic device unit 11 as shown in FIG. 2A.

Next, with reference to FIG. 3, an electronic device section for amplifying the sound signals picked up by the microphones of each foot and suspension is described.

As shown in FIG. 3, the electronic device unit outputs the signals amplified by the first amplifier and the plurality of first amplifiers equal to the number of microphones that amplify the signals from the respective microphones, at the front end of the resistor VR1. And a second amplifier for amplifying the entire signal in combination in parallel and an output for outputting the amplified voice signal.

Although the microphone and the first amplifier are provided with the number of strings of the instrument, in this embodiment, one microphone and one first amplifier will be described for convenience of description.

First, when the power switch SW2 is 'ON', power is supplied to the microphone, the first amplifier and the second amplifier. Next, the micro picked-up voice signal is input to the amplifier IC1, and the gain is adjusted by the resistor R1 and the capacitor C1. On the other hand, resistors R2 and R3 and capacitors C2, C3 and C4 are connected in series / parallel to the output side of the amplifier IC1 to remove the ripple and noise signals of the amplified signal. The amplified signal is input to the amplifier IC2 of the second amplification unit through a circuit protection and matching circuit composed of a resistor R4 and a capacitor C6. Here, as described above, since the number of microphones and the first amplifier is the same as the number of strings of the musical instrument, the signals output from the plurality of first amplifiers are all connected in parallel to the front end of the resistor VR1 and thus the second. It is input to an amplifier part (not shown).

In the second amplifier, an impact buffer capacitor C7 is provided to prevent noise and impact of the input signal, and the amplifier IC2 is an audible frequency in which a high frequency / low frequency channel can be separated and amplified. As the power amplifier, the resistors VR3 and VR2 coupled with the capacitors C8 and C11 were adjusted to divide the voice high frequency band and the voice low frequency band to adjust the gain to improve sound quality. In addition, a stable signal is transmitted to the output unit through the capacitors C10 and C9.

The output unit may output the signal from the second amplifier to the headphone or to the main amplifier via the matching transformer T1.

As described above, according to the present invention, it is possible to provide an acoustic amplifier capable of reducing the influence of noise caused by resonance.

In addition, in the gayageum or lyre of the present invention, when only the original sound is generated without implementing the present invention, the sound of the gayageum or lyre of the present invention is the same sound as that of the gayageum or lyre without the present invention. Has characteristics.

Claims (3)

A plurality of foot or footpieces each having a plurality of small microphones inserted therein; A plurality of first amplifiers each connected to the plurality of microphones to amplify a signal output from the microphones; A second amplifier for amplifying a signal added by connecting output lines of the plurality of first amplifiers; And an output unit for outputting the signal amplified by the second amplifier to a main amplifier or a headphone. The acoustic amplification according to claim 1, wherein the ophthalmologist cuts the cutout portion 8, forms a groove in the portion into which the microphone is to be inserted, inserts the microphone, and then sutures the cutout portion 8 again. Device. The amplification apparatus according to claim 1, wherein after the groove is formed at the lower end of the needle, the microphone is inserted into the groove.