For decades, carmakers treated cabin noise as a single number problem, something to be tamed with thicker glass and extra ...

Reducing the engine noise in cars to an environmentally-acceptable standard consists in layering or stacking heavy materials, such as asphalt, on the floor of the car to absorb the sound. But it is a ...

Engineers are not just adding more insulation, they are reinventing how interior noise is captured, modeled, and judged so ...

Road noise has long been a problem in cars, particularly when traveling at speed on the highway, but it's even more obvious in electric cars, which don't produce engine noise that can help mask it.