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Wigner Representation of Loudspeaker Responses in a Living Room

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The Wigner distribution is a time-frequency representation which has proved itself to be a valuable tool for describing the direct sound field of a loudspeaker as measured in an anechoic room. However, the subjetive judgment of loudspeaker boxes is always done by listening tests in a living room. In order to settle this controversy, we investigated the applicability of the Wigner concept to loudspeaker responses in a reflecting environment. Three Wigner-based representations are discussed, two of which seem promising for practical use.

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AES - Audio Engineering Society