Directional sound boxes in multi-unit arc arrangement

A multi-unit, arc-shaped technology, applied in the direction of frequency/direction characteristic devices, etc., can solve problems such as poor directivity, inability to meet the directional sound reinforcement of sound waves, and large diffusion area

Inactive Publication Date: 2015-09-16
NANJING PIONE HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sound waves of the speaker or column speaker work in a way that the center of the speaker diffuses outward, such as Figure 3-4 As shown, this method of spreading out from the center of the speaker is generally suitable for large-area sound reinforcement in venues and outdoors. It has the characteristics of large diffusion area and poor directivity. Therefore, it cannot satisfy the directional expansion of sound waves to a specific area. voice request

Method used

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  • Directional sound boxes in multi-unit arc arrangement
  • Directional sound boxes in multi-unit arc arrangement
  • Directional sound boxes in multi-unit arc arrangement

Examples

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Embodiment 1

[0023] see Figure 5 , in an embodiment of the present invention, a multi-unit arc-arranged directional sound box is formed by at least two speakers arranged in an arc with an arc less than 180°, and the speakers are full-range speakers of the same type. The angle between the arc and the ground is 0-90°, wherein the arc with an angle of 0° to the ground is a horizontal arc, and the arc with an angle of 90° to the ground is a vertical arc.

[0024] see Figure 6~7 , the present invention adopts the same type of full-range loudspeakers arranged and installed on the arc, so that it can generate sound gathering and intersecting, so that the sound waves can be gathered in the listening area according to the specified direction, so as to achieve the directional effect of the sound. The sound pressure level does not attenuate with the distance under the focusing effect of the multi-unit arc arrangement. On the contrary, the sound pressure level increases at the intersection point. W...

Embodiment 2

[0026] see Figure 8 , in an embodiment of the present invention, a multi-unit arc-arranged directional sound box is formed by at least three speakers arranged in horizontal arcs and vertical arcs, the number of horizontal arcs is at least one, and the number of vertical arcs is At least 1.

Embodiment 3

[0028] see Figure 9 , In an embodiment of the present invention, a multi-unit arc-arranged directional sound box is formed by at least two small sound boxes arranged in an arc with an arc less than 180°.

[0029] In the above-mentioned embodiment, the number of combinations of loudspeakers or small boxes determines the directional effect, 4 speakers or small boxes are better than 2 speakers or small boxes, 8 speakers or small boxes are better than 4 speakers or small boxes, 16 A loudspeaker or a small sound box is better than 8 loudspeakers or a small sound box. In the actual application process, the number of units of the loudspeaker or small sound box can be selected according to the requirements of the directional effect.

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Abstract

The invention discloses directional sound boxes in multi-unit arc arrangement. At least two loudspeakers or at least two sound boxes are arranged in arc with the radian less than 180 degrees. The angle between the arc and the ground is from 0 degree to 90 degrees. According to the invention, full-range loudspeakers or sound boxes of the same type are fixedly arranged in arc, so as to produce sound focusing; sound waves are gathered in a listening area in a specified direction, so as to realize a sound directional effect; sound pressure level does not attenuate with distance change under the focusing effect of multi-unit arc arrangement; oppositely, the sound pressure level rises at an intersection point; the sound pressure of the listening area is met, and at the same time the sound pressure of a non-listening area becomes smaller as the non-listening area is more and more far away from the listening area; and the sound waves carry out directional work in the specified direction. In an actual application process, the number of units of the loudspeakers or small sound boxes can be selected according to the requirement of a directional effect.

Description

technical field [0001] The invention relates to directional sound reinforcement technology, in particular to a directional sound box arranged in an arc with multiple units. Background technique [0002] At present, speakers or column speakers used in sound reinforcement are formed by putting one or a group of speakers into the box to form a sound reinforcement box, such as Figure 1~2 shown. The sound waves of the speaker or column speaker work in a way that the center of the speaker diffuses outward, such as Figure 3-4 As shown, this method of spreading out from the center of the speaker is generally suitable for large-area sound reinforcement in venues and outdoors. It has the characteristics of large diffusion area and poor directivity. Therefore, it cannot satisfy the directional expansion of sound waves to a specific area. voice request. Contents of the invention [0003] The purpose of the present invention is to provide a multi-unit arc-arranged directional sound...

Claims

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Application Information

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IPC IPC(8): H04R1/32
Inventor 俞金祥
Owner NANJING PIONE HIGH TECH
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