Author Topic: Vehicle acoustics  (Read 5532 times)


  • Guest
Vehicle acoustics
« on: June 16, 2009, 02:03:19 AM »
I am currently building a sound quality competition vehicle and have some specific concerns you might be able to help me with.
1. I would like to know what specific material would be best to use for sound absorbtion around the speaker locations to minimize reflection. We are completely rebuilding the dash and there will be a area around 1 ft x 5 ft directly in front of the drivers that I want to treat.
2. The A pillars are the pillars that are on each side of the windshield and they are currently a hard plastic and I want to cover them in an acoustical treatment of some sort but I am not sure what the best material would be.
3. The rear window and surrounding panels I would like to treat as well and again I am looking for an expert opinion on what would be the best material.
Thanks for your time and I look forward to reading your input.



  • Guest
Re: Vehicle acoustics
« Reply #1 on: June 18, 2009, 01:55:03 PM »
Anyone out there with an opinion?

Randy S

  • Senior Soundproofing Technical Specialist
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    • Super Soundproofing Co
Re: Vehicle acoustics
« Reply #2 on: June 22, 2009, 07:56:57 PM »
Any material (open cell) with high NRC ratings is what you want for pyramids or you could use fabric covered fiberglass panels.
Randy Sieg

Super Soundproofing Co
Ph. 760-752-3030


  • Guest
Re: Vehicle acoustics
« Reply #3 on: June 24, 2009, 02:51:53 PM »
Do different materials absorb certain frequencies?
Can you recommend a material and a source to purchase from?

mike sorensen

  • Guest
Re: Vehicle acoustics
« Reply #4 on: March 05, 2012, 01:58:19 AM »
Don't forget about closed cell foams. They provide high NRC ratings are are smoother in performance than most closed cell foams. Any foam is always welcome in the "glass room" scenario. Make sure to place foam of any type on the dash surface and the ceiling.