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Validation of Room Plane Wave Decomposition as a Tool for Spatial Echogram Analysis of Rooms

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The classical point based analysis of sound attributes in room acoustics are not usually enough for analyzing the acoustic complexity of a room. Some spatial attributes that provide more information are been employed. Circular arrays of microphones and the subsequently plane wave decomposition have been proposed in the literature and employed successfully by the authors and others. In this paper, we validate our previous work comparing the resulting measured echograms with the simulation of the room acoustics using a basic room acoustics modeling software, ROOMSIM, freely available. The resulting echograms of both methods are compared identifying strengths and weaknesses of the measurement method based on circular arrays and proposing some ideas for a future more in deep analysis.

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