Does Acoustic Foam Block Sound?

Original video credit: (ig) @acousticpro_ Many people buy open-cell pyramid foam expecting it to soundproof a room, but it only controls room reflections and flutter echoes. Because lightweight foam lacks physical mass, sound waves pass straight through it without losing volume. Stopping airborne sound requires heavy, dense barriers like bonded composite foam to physically block and isolate vibrations. Under Section 107 of the Copyright Act, allowance is made for "fair use" for purposes such as criticism, comment, and education. This video is for educational, commentary, informational and/or transformative purposes only. No copyright infringement is intended. All rights and credits belong to the original content owners. If you are the creator and have concerns regarding the use of this material, please reach out via the email listed in my channel's "About" section.