An outdoor stage with directional sound transmission

Abstract

The embodiment of the invention discloses an outdoor stage capable of directional sound transmission. The outdoor stage capable of directional sound transmission of the present invention includes: a stage base, a background wall and an auxiliary sound device; a plurality of sound gathering grids are distributed in an array on the background wall, and the background wall is erected on the stage base The rear side of the seat; the auxiliary sound device includes: auxiliary sound, sound gathering membrane, negative pressure machine and controller, the auxiliary sound is arranged in the described sound gathering grid, and the sound gathering membrane is made of elastic material, The sound-gathering film is hermetically attached to the sound-gathering grid; the air inlet of the negative pressure machine is in communication with the sound-gathering grid; the controller is electrically connected to the negative pressure , the controller is used to control the power of the negative pressure machine. The outdoor stage capable of directional sound transmission of the present invention can effectively realize directional sound transmission, achieve good sound field effect, and avoid sound pollution to other surrounding places.

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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