System and Method for Measuring Engine to Vehicle Interior Noise Reduction
Publication Date: 2003-May-05
The IP.com Prior Art Database
Engine to interior noise reduction transfer functions must be measured to evaluate and optimize vehicle sound package design. The accuracy of the transfer function measurements depends on how accurately the acoustic properties of the engine compartment are preserved. The conventional engine noise simulator method requires the removal of the engine and installation of a speaker box in the engine compartment to simulate an engine radiated sound field.