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Design of a lightweight acoustical measurement room

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The paper presents the design principles of an acoustic test chamber, where the insulation requirements of typical measurement rooms are relaxed and so constructing the surfaces using very lightweight materials, consisting only of absorbents and a simple frame, is possible. The test chamber constructed according to these principles shows good absorption characteristics down to 200Hz and has a significantly larger free space for measurements than a conventional chamber designed using wedges and solid walls.

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