The operational transfer path analysis methodology is applied on a side-by-side recreational type vehicle to rank vibro-acoustical sources contributions to the overall sound pressure level at driver's ears. The truncated singular value decomposition technique (TSVD) is used to establish the transmissibility matrix and to reduce measurement noise and cross-talk influence. The influence of post-processing parameters such as frequency resolution, overlap and TSVD threshold on the synthesized acoustic response is investigated. The usefulness of the methodology is demonstrated by validating noise reduction solutions resulting from modifications to either the dominant sources or weakest identified transmissibility paths.
