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Loudness is the perceived level of a sound. Some models exist, but they have to be improved in different cases being regularly encountered : both listener’s ears get different signals (case of a localized source as a possible example) where the signal strongly varies. The laboratory has participated to an ANR project (Loudnat) the ambition of whom has been to improve the descriptors of loudness in such situations (in collaboration with the Mechanics and Acoustics Laboratory (LMA), Marseille Institute for Molecular Science(ISM2), and Mechanics Modelling and Green Processes (M2P2). and the Institute for Acoustic/Musical Research and Coordination from Paris.
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