Question

what is sound insulation or soundproofing​

Answer 1

Answer:

Sound insulation is a kind of measure to prevent the sound waves from permeating. It is demonstrated by the sound transmission loss which is expressed by the difference of decibels between the incident sound and permeated sound.

Explanation:

hope right

Answer 2

Soundproofing is any means of reducing the sound pressure with respect to a specified sound source and receptor