Find information on tire noise ratings at TireReview.com, ElevatingSound.com and GoodYear.eu. Find information about the EU tire noise rating system at TireReview.com. This website provides a description of the two types of noises that tires produce and demonstrates a chart used to rate tires.
Find a guide to buying quiet tires that reduce road noise at ElevatingSound.com. This website describes how to measure the sound produced by a tire with a decibel meter or a sound meter and gives a five-factor description for what to look for in a quiet tire.
Find a description of the EU noise rating system at GoodYear.eu. This website describes the three possible ratings and what each rating indicates.