Sound Quality Evaluation of Passenger Vehicle Interior Noise

Paper #:
  • 931347

Published:
  • 1993-05-01
Citation:
Murata, H., Tanaka, H., Takada, H., and Ohsasa, Y., "Sound Quality Evaluation of Passenger Vehicle Interior Noise," SAE Technical Paper 931347, 1993, https://doi.org/10.4271/931347.
Pages:
7
Abstract:
Objective measures to evaluate sound quality are important for proper sound design and noise improvement. In this paper, the objective measures of interior noise of passenger vehicle, which is operated at constant engine revolution speed, are discussed. Subjective evaluation test of the interior noise was done using the semantic differential method. By applying factor analysts to the subjective evaluation scores, three important factors of the sound quality were extracted, i.e. comfortable, powerful and booming factors. Each factor was correlated with various physical values, for example octave band levels. Furthermore, the data is analyzed by multiple linear regression analysis with stepwise variable selection, of the each factor scores against the various physical values. Finally, an objective measure to evaluate each of these factors was conducted using the combination of simple physical values. Each of these measures was good correlation with each of the subjective evaluations.
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