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首页> 外文期刊>Applied Acoustics >Covered broadband absorbers improving functional acoustics in communication rooms
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Covered broadband absorbers improving functional acoustics in communication rooms

机译：覆盖宽带吸收器，可改善通讯室的功能性声学

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摘要

The noise problem, self-generated by lingual or musical communications in small to medium-sized rooms, is sometimes underrated and often inadequately treated by conventional measures like fibrous or porous suspended ceilings and other absorbent surface linings. It originates from a room reverberation which blurs the low-frequency sound. This masks the high frequencies and reduces intelligibility and clarity, thus raising the overall sound to intolerable levels. A solution is provided by broadband bass absorber elements to be mounted only at a few edges of the room. These preferably cover always less than 20% of the ground surface along the walls and leave the ceiling completely untouched for other installations or energy-saving tasks. This novel concept and design enables acoustically efficient and visually attractive measures with rigid closed surfaces requiring minimal investment, maintenance and renovation costs. Application examples of classrooms, cafeterias, seminars and multi-purpose assembly halls prove the practicability of novel passive or reactive edge absorbers.
机译：在中小型房间中，通过语言或音乐交流而自发产生的噪声问题有时会被低估，并且通常无法通过常规措施（如纤维状或多孔的吊顶和其他吸收性表面衬里）进行适当处理。它源自房间混响，使低频声音模糊。这掩盖了高频并降低了清晰度和清晰度，从而将整体声音提升到了无法忍受的水平。宽带低音吸收器元件提供了一种解决方案，该解决方案只能安装在房间的几个边缘。优选地，这些覆盖物始终沿着墙壁覆盖不到地面的20％，而对于其他安装或节能任务，则完全不触及天花板。这种新颖的概念和设计可实现具有声学效果的且具有视觉吸引力的措施，并具有刚性封闭表面，所需投资，维护和翻新成本最少。教室，自助餐厅，研讨会和多功能礼堂的应用实例证明了新型无源或无源边缘吸收器的实用性。

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