A co-planar symmetrical horn for sound reinforcement

Abstract

The invention provides a sound amplification co-planar symmetric horn which comprises a middle-pitch horn, a high-pitch horn, a horn front fixing rack, a rear side installing platform, a median sealing cover, a high-pitch driver, a vertical angle adjustor, an angle adjusting bolt, a horn rotation shaft bolt, a horn rear supporting rack, a base, a middle-pitch driver, a horizontal angle adjustor and an angle adjusting slide rail. The sound amplification co-planar symmetric horn has the following advantages that the sound amplification co-planar symmetric horn is convenient to install, simple in operation and high in practicability; middle-pitch and high-pitch co-planar symmetric design is adopted, so that the sound filed evenness of a coverage region is effectively improved; the horn has a middle-pitch and high-pitch co-planar characteristic, phase distortion is remarkably reduced, acoustic image positioning accuracy is improved, and the quality of amplified sound is improved; horizontal and vertical bidirectional angle adjustment can be achieved, and an application range is widened.

Description

technical field [0001] The invention relates to a sound reinforcement tool, in particular to a coplanar symmetrical horn for sound reinforcement. Background technique [0002] In modern sound reinforcement applications, in some high-end places, such as theaters, cinemas, auditoriums, lecture halls, etc., the technical requirements for sound reinforcement are getting higher and higher, not only to meet the sound pressure level, but also to meet the requirements of sound image positioning and uniform sound field Degree and other high-end technical indicators. This requires constant optimization and innovation in speaker system design. [0003] Usually, in order to meet the sound reinforcement requirements of large-area venues, a combined horn speaker system is often used to increase the initial sound pressure level and meet the sound pressure requirements of the entire sound field. Common traditional combination horn structures such as figure 1 As shown, although the tradit...

AI Technical Summary

Problems solved by technology

Common traditional combination horn structures such as figure 1 As shown, although the traditional combined horn can meet the sound pressure level requirements, it has defects in sound field uniformity and sound image positioning, such as figure 2 It can be seen from the figure that in area A, there are more midranges and insufficient trebles, and the opposite is true in area C, resulting in inconsistent sound field uniformity; etc., resulting in a path difference ΔL=La-Lb

Therefore, the path difference will cause a time difference, so that the treble and midrange cannot reach the reference test point D synchronously, that is, the phases are not equal

[0004] The phase is not equal, which will lead to phase distortion, causing inaccurate sound image positioning and deterioration of sound quality

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