Fazenda, BM, Wankling, M, Hargreaves, JA, Elmer, LA and Hirst, J 2012, 'Subjective preference of modal control methods in listening rooms' , Journal of the Audio Engineering Society, 60 (5) , pp. 338-349.

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Abstract

Methods to control the unwanted effects of low-frequency modes in critical listening rooms range from complex signal processing to the positioning of loudspeakers and listeners. A rigorous scientific experiment has been conducted to evaluate the perceived quality of eight low-frequency reproduction systems used to control the unwanted effects of room modes in a standard listening room. A strong correlation has been demonstrated between perceived improvements in quality and the decay times of low-frequency energy. For critical listening conditions, those systems ensuring a faster decay of low-frequency energy are preferred over those attempting to “flatten” the magnitude frequency response.

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