Is Soundproofing Necessary for Cars?

[PaisleyAnn]

Soundproofing is not mandatory for cars. Automotive soundproofing can be categorized into partial and full-vehicle soundproofing. Some vehicles already have decent sound insulation, or only certain areas lack proper insulation. In such cases, full-vehicle soundproofing isn't necessary—targeted soundproofing in specific areas can yield significant improvements. Car noises are classified into low, medium, and high frequencies, and not all noises can be effectively blocked. For instance, engine noise and sheet metal vibrations, which fall under medium-to-high frequencies, can be mitigated with soundproofing. However, noises like tire roar, especially exhaust pipe sounds, which belong to medium-to-low frequencies, are often challenging to block.