Contribution Separation Technique for Vehicle Interior Noise Using Only Response Signals

‐Engine, Road and Wind Noise Separation Using Independent Component Analysis‐

Abstract

In this study, we considered a contribution separation technique using only response signals and utilized independent component analysis (ICA) as the method. To verify the applicability of the method, vehicle engine, road and wind noise sources were combined artificially to simulate vehicle interior noise and ICA was applied to these signals for separating each contribution. The result showed the contribution could not be obtained correctly by the permutation problem. We then proposed a solution technique using characteristics of each sound source. As a result, the technique with the method could calculate correct contributions using only response signals.