A 12¾-inch-thick common block wall assembly fitted with Acoustiblok sound barrier material has achieved the highest Sound Transmission Class rating (STC 70) ever recorded at Architectural Testing Inc.

The University of Hong Kong. "Perfect transmission through barrier using sound." ScienceDaily. ScienceDaily, 23 December 2020. <www.sciencedaily.com / releases / 2020 / 12 / 201223125745.htm>.

Business NC-bound Boom Supersonic breaks the sound barrier. Watch its test flight here. By Brian Gordon Updated January 28, 2025 1:11 PM ...

NASA has released a new image showing the moment Boom Supersonic's XB-1 jet broke the sound barrier without producing an audible sonic boom. Boom Supersonic, the company aiming to create ...

However, Eco Sound Barrier panels cost only $10 per square foot, an estimated savings of about $366,000 in material costs alone. Faster is better Additional benefits of using Eco Sound Barrier began ...

Sound can't normally travel from beneath water's surface to the air above due to a mismatch in densities, but a new material changes that By Alex Wilkins 4 May 2023 ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Why It Matters Before Tuesday, no civil private manufacturer had passed the sound ...