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Sound Decomposition - A Key to Improved Sound Simulation
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 05, 2003 by SAE International in United States
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The sound field in a vehicle is one of the most complex environments being a mixture of multiple, correlated and uncorrelated sound sources. The simulation of vehicle interior sound has traditionally been produced by combining multiple test results where the influence of one source is enhanced while the other sources are suppressed, such as towing the vehicle on a rough surface for road noise, or measuring noise in a wind tunnel. Such methods are costly and provide inherent inaccuracies due to source contamination and lack of synchronization between sources. In addition they preclude the addition of analytical predictions into the simulation. The authors propose an alternative approach in which the component sounds are decomposed or separated from a single operating measurement and which provide the basis for accurate sound synthesis.
CitationCrewe, A., Bogema, D., Williams, R., Balaam, M. et al., "Sound Decomposition - A Key to Improved Sound Simulation," SAE Technical Paper 2003-01-1423, 2003, https://doi.org/10.4271/2003-01-1423.
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- Williams, R., Balaam, M.P., “Understanding and Solving Noise Quality Problems”, 1989 Autotech Conference, Birmingham, England, Nov 14, 1989