Successful in-vehicle powertrain NVH measurement & analysis: Part 1 – Spatial Averaging
Automotive powertrain systems are inherent generators of tonal noise. Whenever gears, sprockets/chains, fluids or electricity are used to transmit power, some degree of tonal noise is inevitable. If such tonal noise stands-out above the general level of background noise in a vehicle, it is considered by many to be annoying.