Sampling the Energy in a 3-D Sound Field
The energy in the 3D sound field in a room holds crucial information needed when designing a room correction system. This paper shows how measured sound pressure in at least 4 randomly selected positions scattered across the entire listening room is a robust estimate of the energy in the 3D sound field. The reproducibility was investigated for different number of random positions, which lead to an assessment of the robustness of room correction systems based on different numbers of random microphone positions.
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