Stage sound control device

Abstract

The invention discloses a stage sound control device, relating to the field of sounds, comprising a stage, a control device and a plurality of linear array speakers, wherein the speakers comprise rectangular high-intermediate frequency speakers and a square low frequency speaker, the speakers are placed in the stage, a color screen is provided in the middle of the stage, the two side walls of thecolor screen are provided with grooves, the high-intermediate frequency speakers are stuck in the grooves, the low frequency speaker is placed behind the color screen, and the high-intermediate frequency speakers are symmetrically set in the groove. The invention has the advantages that the horizontal coverage angle of the output sound is wide, the vertical coverage angle is narrow, and the soundhas a uniform coverage, so that the sound pressure level in the central region of the stage and the sound pressure level at the edge of the stage are relatively small, which is favorable for the return of the sound when the actors move on the stage, and the enhancement of the viewer's audiovisual feeling.

Description

technical field [0001] The invention relates to the field of audio, in particular to a stage audio control device. Background technique [0002] In order to enhance the overall sense and gorgeous effect of the stage and satisfy the audience's visual aesthetic enjoyment, a large number of LED screens are usually used on the background wall, ceiling and floor of the stage of the studio, and some stages even extend directly to the last row of the auditorium. Form a T-shaped stage, so that the studio becomes a complete stage performance space from the ground to the ceiling. Performing on such a stage with almost 360° LED screens, it is very critical to ensure that each actor can clearly hear the return sound at any point in such a space. The traditional stage sound return system usually uses full-band point sound source return speakers, and the speakers are placed on the stage or hung on both sides of the stage. But for such a 360° LED screen stage, the traditional speaker pla...

AI Technical Summary

Problems solved by technology

But for such a 360° LED screen stage, the traditional speaker placement will bring the following problems: 1) Whether it is placed on the ground or hung on the side, it will obviously block the LED screen, causing serious visual wear; 2) Even if it can be placed Putting can also cause problems

Because the sound horizontal and vertical coverage angles of point sound source speakers are usually relatively large, it will cause a large number of sound reflections relative to the ground and side LED screens, affecting sound clarity, and will also cause uneven sound in the stage area, that is, the distance from the speaker is close to the sound The pressure level is large, but the sound pressure level far away from the speaker is small; 3) This will not only cause the actors to be unable to hear the return sound clearly, but also affect the audience's audio-visual experience; 4) Secondly, due to the acoustic sound absorption of the existing stage originally located behind the audience area The cavity was blocked by the LED screen, and the expected sound absorption effect could not be achieved. On the premise that the actor himself could not hear the return sound clearly, there was interference from the opposite echo, which eventually made the entire sound field environment worse;5 ) In addition, since the stage is almost covered by a 360° LED screen, that is to say, the ground, surroundings and ceiling of the entire stage are all luminous bodies. Visually, it is unusually abrupt, destroying the complete visual effect of the stage

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