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Master Thesis

Élaboration d'une méthode de test pour l'évaluation de l'impact des caractéristiques physiques de diffuseurs acoustiques dans une salle

Abstract : The test method is based on an auralization technique including a wave-based numerical modelling and a binaural reproduction. This method simulates, in two dimensions, the acoustic behaviour of a room with QRD diffusers placed on the boundaries. Human head geometry is represented with an ellipse. The subjective test method used paired comparison, presented on a graphic user interface. A subjective test has been carried out. Its aim was to observe the impact of the diffusers' efficient frequency bandwidth on subjective difference and preference. This test doesn't allow to find a relationship between the physical parameter varied and the subjective appreciation. Regarding to the signals analysis and imperfections of the method, these results have to be taken with care. Some enhancements of the method have to be done before reuse. A synchronized presentation of the signals for the subjective evaluation and a correction of the non-linearity of the frequency response of the auralization method are suggested.
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Master Thesis
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Submitted on : Tuesday, December 15, 2015 - 10:41:46 AM
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Tony Lethuillier. Élaboration d'une méthode de test pour l'évaluation de l'impact des caractéristiques physiques de diffuseurs acoustiques dans une salle. Acoustique [physics.class-ph]. 2012. ⟨dumas-01243578⟩

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