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Modeling Non-Shoebox Shaped Rooms with the Mode Matching Method

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When a room is not shoebox shaped, usually no analytical expressions exist for the determination of resonance frequencies and mode shapes. One option is to employ the Finite Element Method (FEM). In this paper an alternative method, the Mode Matching Method (MMM), is used to compute the transfer function and sound field of a non-shoebox shaped room with rigid walls and is compared to an FEM solution. The two methods show excellent agreement.

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AES - Audio Engineering Society