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Natural Timbre in Room Correction Systems

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Room correction systems are often found to provide a timbre, which is described to be artificial or unnatural. This paper presents a new approach to this problem, which is based on the finding that part of the influence of a listening room is natural to the human ear and should not be removed by a room correction system. More specifically the smooth increase of level towards lower frequencies, also referred to as room gain, must be preserved after applying a room correction system. In the described system this is done as an integral part of the automatic target calculator, which also takes into account the main characteristics of the used loudspeaker, e.g. lower cut-off frequency and directivity index.

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AES - Audio Engineering Society