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Door soundproofing is supposed to be very effective in reducing sound from the outside environment. I am using different soundproofing method on different door. Trying to determine which one is better. Note that weight is also to be taken into consideration when doing soundproofing as these materials will add weight to the car which will cause reduction in fuel efficiency.
Lastly, I do not have a proper sound testing device. So my test is using mobile phone which is not really accurate.
I can say the sound is better after doing it but it is still noisy due to the tyre that I am using is low profile. It is also aging which causes slight hardening that produce even harsher sound.
#prius #soundproofing #door