Sound Quality Analysis of Annoyance of Vehicle’s Interior Noise

The interior noise samples of four cars at different positions and driven at different speeds were selected as the evaluation objects.The subjective evaluation test of sound quality annoyance was carried out with grading method.Several objective psycho-acoustical parameters of these samples were calculated.By means of linear correlation and multi-dimensional regression analysis,the relation between the subjective evaluation of the noise annoyance and the objective psycho-acoustical parameters was established.The results indicate that the vehicle interior sound quality annoyance under the good highway condition and the constant-velocity driving condition is affected mainly by two psycho-acoustical parameters: the downcast and the tonality.