Outdoor stage capable of directionally transmitting sound

Abstract

The embodiment of the invention discloses an outdoor stage capable of directionally transmitting sound. The invention discloses an outdoor stage capable of directionally propagating sound. The outdoorstage comprises a stage base, a background wall and an auxiliary sound device; a plurality of sound gathering grids are distributed on the background wall in an array mode, and the background wall isvertically arranged on the rear side of the stage base. The auxiliary sound box device comprises an auxiliary sound box, a sound gathering film, a negative pressure machine and a controller, the auxiliary sound box is arranged in the sound gathering grid, the sound gathering film is made of an elastic material, and the sound gathering film is attached to the sound gathering grid in a sealed mode;an air inlet of the negative pressure machine is positioned in the sound gathering grid and is communicated with the sound gathering grid; the controller is electrically connected with the negative pressure machine and used for controlling the power of the negative pressure machine. According to the outdoor stage capable of directionally propagating the sound, directional sound propagation can beeffectively achieved, a good sound field effect is achieved, and sound pollution to other surrounding places can be avoided.

Description

technical field [0001] The embodiments of the present invention relate to the field of landscape design, in particular to an outdoor stage capable of directional sound transmission. Background technique [0002] At present, there are a large number of community parks in my country. For example, the total number of registered urban parks in Shanghai has reached 300 (at the end of 2018), with a total area of ​​3141 hectares and a total of more than 260 million annual tourists. However, due to the influence of the current situation, the transition between dynamic and static spaces in community parks is often relatively cramped. For example, the pear garden and the lakeside scenic spots of the lotus pond are quiet scenes, while the Pingtan event is a noisy scene with crowds, so it is inevitable that there will be conflicts in the acoustic environment. Especially when the per capita park area is small, the park is used frequently, and the activities are rich in content, various ...

AI Technical Summary

Problems solved by technology

However, due to the influence of the status quo, the transition between dynamic and static spaces in community parks is often relatively cramped

For example, the pear garden and the lakeside scenic spots of the lotus pond are quiet scenes, while the Pingtan event is a noisy scene with crowds, so it is inevitable that there will be conflicts in the acoustic environment

Especially when the per capita park area is small, the park is used frequently, and the activities are rich in content, various sounds can easily interfere with each other, so that the sound comparison between groups will cause the acoustic environment to get out of control and cause sound pollution.

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