Noise produced by electric vehicles is of different nature from noise deriving from fuel-powered thermal vehicles. The mechanical stress produced by an electric engine results in much lower noise levels (<800Hz) than thermal vehicles, but can be similar with respect to high frequencies.

Car manufacturers have been able to integrate sound and vibration issues within the design process of vehicles with thermal engines. Avelec’s objective was to build-up an equivalent know-how for electric vehicles (EVs).