Zeitdatenbehandlung mittels Blockfiltertechnik

Interior noise of a car is a result of airborne- and structure-borne sound excitation. This project is focused on the structure-borne sound. To compute the ratio of the different excitations, transfer path analysis is used in today’s industry. The aim of this project is to make the via TPA computed sound propagations of the single sound sources audible.

Therefore a preprocessing of the available measuring data is necessary, which includes filtering and interpolation. Afterwards, the audible part of the single structure-borne sound sources is computed, using excitation time data in operational condition. Because of the great amount of data, overlap-add is used.