Car Acoustics

 
Vehicle on roller chassis dynamometer. Copyright: ITA Vehicle on roller chassis dynamometer.

Runs smoothly?

In the automotive industry, the competition, price, and comfort constitute the main arguments for the sale of the trade mark characteristics. The influence of internal and external noise in vehicles is of major importance. Many manufacturers advertise nowadays their acoustic quality criteria (quiet, sporty etc.). The noise sources in a vehicle are apart from the engine and the gear box, also aero acoustics and the rolling noise whilst driving. Therefore a number of different methods are being developed to model and optimize the sound transfer from its source to the driver.