The installation and optimization of acoustic enhancement systems requires a large amount of experience. The verification in terms of measurement is most of the time done using conventional reverberation and acoustic parameter measurements according to ISO 3382. This is a good solution for diffuse sound analysis and general examination of early reflections, but in terms of direction dependent analysis the results are not satisfying. In this study a room equipped with an acoustic enhancement system was measured using a circular array. The effects of adding specific early reflections and direction dependent diffuse energy generated by the acoustic enhancement system are investigated. The results are compared to standard measurements according to ISO 3382.
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