DIY Noise Reduction

Guard Dad · 10-04-2011, 03:32 PM

I'm not sure how revealing the db meter will be. I purchased the "db meter pro" app for the iphone 4 and didn't find the information especially revealing. Because of all of the mechanical activity in a moving car I found it difficult to determine the effect of road noise on the overall noise environment as measured on the meter. My readings (after improvements) ran 67-68 db(a) at freeway speeds and the changing road surface didn't make much difference on the meter readings. However I can assure you that the subjective improvement is massive. My hard won advice is to install about 40 square feet of Raamat or Dynamat ($100-$140 if you do it yourself) in the hatch and doors and call it a day. It only adds about 20 pounds and the improvement is worth every pound and dollar invested.

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10-04-2011, 03:32 PM	#6 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 16	I'm not sure how revealing the db meter will be. I purchased the "db meter pro" app for the iphone 4 and didn't find the information especially revealing. Because of all of the mechanical activity in a moving car I found it difficult to determine the effect of road noise on the overall noise environment as measured on the meter. My readings (after improvements) ran 67-68 db(a) at freeway speeds and the changing road surface didn't make much difference on the meter readings. However I can assure you that the subjective improvement is massive. My hard won advice is to install about 40 square feet of Raamat or Dynamat ($100-$140 if you do it yourself) in the hatch and doors and call it a day. It only adds about 20 pounds and the improvement is worth every pound and dollar invested.