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Sherri Zann · 02-25-08, 02:07

I'm looking to see if Autopians can clarify the issue of how to efficiently reduce noise in cars. This is one of the best sites on the web for intelligent inquiry about cars, and this is a topic with a lot of half-baked posts on other sites.

I've been doing a lot of research on noise reduction in cars. On many sites, the Dynamat or other heavy matting is put on every square inch of interior door skins and floor panels. Maybe a thin bit of closed cell foam is then put on top of this.

But when I look at scientific research on auto noise reduction, it looks like recent computer models are showing how to REDUCE the amount of metal damping to optimize weight/noise. In Europe, they discovered that they could get better sound damping and save both bulk and weight by using thin layers of dense and less dense felt to absorb sound. Here's a press release about an interesting recent study by the EU: Smart sound insulation in cars leads to lower environmental emissions

I just used old yoga matting in the A-pillars of my civic to reduce squeaks and deaden the sound.

Anybody here have ideas about efficient and effective noise reduction in cars?

02-25-08, 02:07	#1 (permalink)
Sherri Zann Lurker Extraordinaire Sherri Zann is offline Join Date: Jan 2002 Location: Durham, NC Posts: 234	Sound proofing to reduce road noise I'm looking to see if Autopians can clarify the issue of how to efficiently reduce noise in cars. This is one of the best sites on the web for intelligent inquiry about cars, and this is a topic with a lot of half-baked posts on other sites. I've been doing a lot of research on noise reduction in cars. On many sites, the Dynamat or other heavy matting is put on every square inch of interior door skins and floor panels. Maybe a thin bit of closed cell foam is then put on top of this. But when I look at scientific research on auto noise reduction, it looks like recent computer models are showing how to REDUCE the amount of metal damping to optimize weight/noise. In Europe, they discovered that they could get better sound damping and save both bulk and weight by using thin layers of dense and less dense felt to absorb sound. Here's a press release about an interesting recent study by the EU: Smart sound insulation in cars leads to lower environmental emissions I just used old yoga matting in the A-pillars of my civic to reduce squeaks and deaden the sound. Anybody here have ideas about efficient and effective noise reduction in cars? __________________ Is it possible to be a moderate Autopian? Not in my own experience.