JP7152643B2 - speaker system - Google Patents

Description

The present invention relates to the invention of a speaker system for the purpose of approximating the sound of an actual musical instrument or the sound field.

Until now, speakers have focused on sampling a portion of the sound emitted from an instrument, eliminating the sound of the opposite phase, and faithfully reproducing the sound source. However, the sound emitted from musical instruments is emitted in various directions, and the spread of sound varies from instrument to voice. do not have. Besides, I needed a listening point so that I could hear the center sound clearly.

Many reproduction methods closer to actual music have been attempted, one of which is a reproduction method using a speaker matrix system. It is an attempt to reproduce a three-dimensional sound field by changing the wiring. However, by changing the wiring, there was a disadvantage that it put a burden on the amplifier, and in the worst case, it broke the amplifier.

In order to reproduce the original sound, a number of devices with multidirectional speakers were developed. However, even if the speakers are installed in multiple directions, the sound emitted from the speakers is the same.

In this regard, there have been attempts to approximate the actual acoustic space by using a surround system that digitally processes audio signals. However, it required special equipment, separated the sound into L, R, and center, and was a system for hearing the sound from a 360-degree space.

There was an attempt to make the sound clearly audible by placing the speakers facing each other, but it was not aimed at creating a three-dimensional sound or the original sound, nor was it possible to obtain a spatial spread to the left and right, so it was far from the original sound. there were.

The problem to be solved by the present invention is to reproduce the sound conditions of an actual live performance by making the waveforms of the sounds of various musical instruments and voices as close as possible without suppressing the sounds of opposite phases as much as possible. and As a result, we aimed to be able to enjoy music without limiting the listening point.

Means for solving the invention

The left and right speakers are attached back-to-back on the left and right sides of a single housing. The shielding rate should be 50% or less of the flat area of the speakers so that the left and right speakers interfere with each other with the opposite phase sounds emitted from the rear and the inside of the housing is not blocked by objects. Then, from the ducts on the left and right of the housing, the center sound and the normal phase sound are emitted from the left and right speakers.

Place the left and right front speakers slightly facing each other, and install them in the housing in front of the left and right speakers and closer to the center. At this time, the straight line connecting the left and right speakers should intersect with the straight line behind the front speakers, and the straight lines extending forward from the left and right front speakers should intersect in front of the listener.

If the angle at which the front speakers face each other is too far, the sound becomes muffled and does not sound like a voice. Therefore, the facing acute angle is about 90 degrees to 150 degrees.

Effect of the invention

An actual musical instrument emits a wide range of positive and negative phase sounds. It becomes possible to make a sound.

The center sound is similar to human voice because the front speakers face each other and intersect in a straight line in front. As a result, clear sound can be obtained without defining a listening point.

With the above effects, the sound of musical instruments is reproduced from near the left and right speakers, and the sound of human voices and wind instruments is reproduced from near the center, for example, reproducing an acoustic space similar to a live space such as a band performance. .

FIG. 1 is a front view of the present invention. FIG. 2 is a cross-sectional view of the present invention taken along line A-A' of FIG. 1, viewed from above. FIG. 3 is a view of the present invention viewed from the right side.

You can listen to the sound indoors or outdoors by connecting to a normal audio amplifier or installing a wireless function.

Designed in combination with a flat-screen TV, the sound of the TV is changed to a more realistic sound, allowing you to enjoy TV.

It is possible to design a more realistic amusement machine by combining it with the sound system of the amusement machine.

1 front left speaker 2 front right speaker 3 left speaker 4 right speaker 5 housing 6 housing ceiling 7 housing bottom 8 duct

Claims (1)

Left and right speakers 3 and 4 are attached back to back to the left and right sides of a single housing. At the center of the body's internal space where sound passes, the area of the vertical plane in the direction of propagation of the sound is blocked by 50% or less. In addition, the front left and right speakers 1 and 2 face each other at an internal angle of 120 degrees to 150 degrees, and the speaker system is attached to the housing horizontally in the left and right directions in front of the left and right speakers and closer to the center.

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