Method of alternatinghigh-frequency horn for optimizing the directivity of loudspeaker line array and frequency response

Abstract

The invention discloses method of high-frequency alternating horn for optimizing the directivity of a loudspeaker line array and frequency response. The high-frequency horns of a loudspeaker line array are arrayed to form a referential axis, and the high-frequency horns are arrayed on one side or two sides of the referential axis; the openings of the neighbored high-frequency horns are connected or overlapped to be connected with each other at the vertical axis direction; the openings of the high-frequency horns form a straight line which forms an included angle with the axis, or the opening of the high-frequency horns form an arc structure, so that the effective radiation areas of each high-frequency horn are connected with each other tightly. In the invention, the high-frequency horns are arrayed alternatively, thus reducing the factor effect of effective radiation in an effective frequency range, and obviously lowering the negative effect caused by the sidelobe of vertical directivity, comprising the directivity and the frequency response.

Description

technical field [0001] The invention relates to a method for optimizing the directivity and frequency response of a loudspeaker line array, that is, by improving the arrangement of high-frequency horns in the loudspeaker line array, increasing the effective radiation factor in the vertical direction of the array, reducing side lobes, and optimizing the directivity of the loudspeaker line array and frequency response. Background technique [0002] In order to provide high-quality sound reinforcement performance in large halls and venues, a higher sound pressure level is required. Since it is difficult for a single speaker to achieve the ideal sound pressure level, a speaker array composed of multiple speakers is an effective solution, and the speaker array has also become a research hotspot in the audio field. [0003] Compared with the traditional sound reproduction system, the large loudspeaker array sound reproduction system has the following advantages: [0004] 1. It c...

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Problems solved by technology

[0013] The above methods are all about analyzing the influence of the above-mentioned sound source interval on the side lobe and objective measurement, but how to increase the effective radiation factor at high frequencies to achieve the effect of reducing the side lobe, in addition to reducing the wall thickness of the box as much as possible Additionally, there is no ideal solution

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