How to Reduce Noise in a Car?
2 Answers
Here are some methods to reduce noise in a car: 1. Engine: To reduce engine noise, apply sound-absorbing foam under the hood. Engine noise enters the cabin through vibrations from the front fenders, hood, and exhaust pipe. Owners can apply a high-quality sound-absorbing foam material under the hood, which can absorb and dissipate a significant amount of engine noise while also suppressing hood vibrations. 2. Wind noise: To reduce wind noise, install door seals. Wind noise is generated by the rapid flow of air rubbing against the car body during movement and typically enters the cabin through door gaps. 3. Tire noise: To reduce tire noise, replace tires with comfort-oriented ones or apply soundproofing materials. Tire noise is usually caused by vibrations from the tires and tread patterns or friction and impact between the tread and the road surface.
I've given a lot of thought to reducing car noise, and there are mainly three key points. Switching to quiet tires can reduce tire noise by 10 to 20 decibels. If the door seals are aging, replace them promptly, and the wind noise will suddenly decrease. I've personally tried sticking butyl rubber soundproofing mats inside the door panels, and even playing music on my phone felt more immersive. Applying sound-absorbing mats under the hood is very effective, especially on highways where the engine noise becomes noticeably muffled. The undercoating spray is quite important—it reduces stone impact noise by about 80%. If the exhaust pipe hangers are worn out, they can cause a buzzing sound, but replacing the rubber parts fixes it. When doing full-car soundproofing, be careful not to block the drainage holes, as this can lead to water accumulation. The balance of the AC fan blades is also crucial—if they're misaligned, they can produce strange whistling noises.
