Nov 26, 2019 · Amazon's Choice for sound absorption sheets Sure-Max 4 Moving & Packing Blankets - Deluxe Pro - 80" x 72" (40 lb/dz weight) - Professional Quilted Shipping Furniture Pads Royal Blue 4.5 out of 5 stars 218

Sounds are simply vibrations, and polystyrene absorbs these vibrations, or sound waves. Some of the sound can still penetrate the foam, and so it would be inaccurate to call Styrofoam soundproof. At best, its properties are sound resistant. The four sides, rather than two, help reduce sound like flutter echoes with extra diffusion but offer slightly less absorption, both desired characteristics depending on usage style. Eggcrate/Convoluted Toppers : Eggcrate acoustic soundproofing foam is great for people who want the sound-deadening qualities of 1 and 2 inch wedge foam, but at a ...