Bidimensional cruciate sound column with controllable directive property

Abstract

The invention discloses a bidimensional cruciate sound column with controllable directive property, which comprises a vertical sound column box body and a horizontal sound column box body; the vertical sound column box body and the horizontal sound column box body are respectively and internally provided with a loudspeaker, and are fixedly connected to present in a cruciate shape; and the cruciate sound column with the controllable directive property can enable the vertical radiation angle and the horizontal radiation angle of the sound column to become wider, regulates and controls the vertical radiation direction and the horizontal radiation direction of the sound column to change continuously according to the need within a wider range, can flexibly change the wave packet direction of the sound column, facilitates constructing various sound effects, has good sound amplification effect, and is convenient and practical. The invention can serve as a sound column with excellent performances to be widely applied to fields of waiting rooms, lobbies, subways and the like.

Description

Technical field [0001] The invention relates to a sound column, in particular to a two-dimensional cross-shaped sound column with controllable directivity. Background technique [0002] The sound column is an electro-acoustic device composed of a number of speakers and a cabinet. The vertical directivity of the sound column is narrow, so it is widely used in various sound reinforcement occasions. However, in some venues, such as waiting halls, waiting halls, subways, auditoriums, churches, etc., due to the long reverberation time and too many reflections, the sound reinforcement clarity decreases. The above-mentioned problems can also be solved by using a line array speaker system, but the speaker system is required to be small in size and it is difficult to cooperate with the building. The vertical radiation angle or the horizontal radiation angle of the traditional sound column is generally very narrow, which cannot meet the broadcasting demand of a spacious public area, nor ...

AI Technical Summary

Problems solved by technology

However, in some venues, such as waiting halls, waiting halls, subways, auditoriums, churches, etc., due to longer reverberation time and too many reflectors, the clarity of sound reinforcement is reduced

The above problems can also be solved with a line array loudspeaker system, but the loudspeaker system is required to be smaller in size, and it will be more difficult to cooperate with the building

The vertical radiation angle or horizontal radiation angle of traditional sound columns is generally very narrow, which cannot meet the broadcasting needs of spacious public areas, nor can it create various changing sound effects

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