Is It Necessary to Do Soundproofing for Car Doors?

[AnthonyRose]

This depends on the specific situation. Soundproofing the four doors is relatively effective in shielding mid-frequency noise. However, it's important to note that reducing mid-frequency noise does not significantly lower the overall noise level, as high-frequency and low-frequency noises still remain. It may just change the perceived direction of the noise source, improving comfort to some extent. Relevant information is as follows: 1. Soundproofing and comfort performance: For older cars with significant noise, soundproofing the four doors noticeably improves noise reduction and comfort. 2. Noise: For newer cars with less severe noise, soundproofing the four doors shows no obvious difference, as other noises such as engine noise, tire noise, and chassis noise still persist.