Almost everything we do at Metropolitan Acoustics is within the audible frequency range – roughly 20 Hz to 20 kHz. Sound above this range is called ultrasound, and you’re likely familiar with its role in medical imaging. However, ultrasound has many additional applications in medicine that continue to evolve. Read on to learn how both conventional and cutting-edge ultrasonic technologies are used in healthcare.
Watching the Winter Olympics this year was a lot of fun, but there was something different that the world had not experienced in years past: drone footage. The drones were everywhere and provided exciting video from above skiers and snowboarders
A Metropolitan Acoustics employee had a dream where an architect incorporated a double stud wall at every adjacency, and then woke up to the sad reality that projects can’t always sacrifice that type of footprint. There are, however, other means and methods to increase sound isolation without sacrificing that much space; read on to learn more.
Last month, the Metropolitan crew took a much needed new year break and head out for an afternoon of mini-golf and fun to the local Puttshack in Center City, where we played four rounds of interactive mini-golf and enjoyed some delicious beverages. While everyone did surprisingly well, Graham Everhart was the ringer winning two rounds in a row. A wonderful time and great team building outing for all! Check out some smiling snaps here.
Happy New Year! As we roll into 2026, we want to bring things back to basics and discuss two of the more recognized, but often misunderstood, sound isolation performance metrics. Sound Transmission Class (STC) and Impact Insulation Class (IIC) ratings for interior partitions are used in IBC, LEED, FGI, and many other codes and guidelines; however, both ratings have limitations. Read on to discover if your project can rely simply on these metrics or if a more comprehensive sound isolation performance evaluation is needed.
One of our Live Nation projects is coming along. Construction is progressing on Satellite Music Hall, Live Nation’s new indoor venue planned for the Crosstown area of Memphis, Tennessee. The project is under construction and slated for a fall 2026
As the season shifts toward winter, colder days and longer nights begin to take hold. Lakes and ponds are starting to freeze over, transforming into smooth, glassy surfaces. Amid these changes, one of the most surprising sounds of the season begins to emerge, the sounds created by these icy bodies of water, sometimes referred to as singing ice. Read on to learn more about this unique sound.
Have you ever heard a noise but weren’t quite able to find exactly where it’s coming from? Maybe a bothersome cricket outside your bedroom window, or a strange sound coming from under the hood of your car. Now imagine a tool that allows you to pinpoint exactly where a noise is coming from as easily as taking a picture. Read on to learn more about how such a device, known as an acoustic camera, is transforming the way we diagnose, design, and control sound.
If it’s fall, it must be race season for Felicia. In October, Felicia ran the Atlantic City 10K, part of the Atlantic City Marathon Race weekend. It was a beautiful day to run, and as it turns out, Felicia won her division! In November, she ran the iconic Rocky Run 10-miler for the first time. It was a very Philly race and while not winning her division, she placed well and had a great time to boot. See some fun pictures here.
Spooky season is officially here and it’s time to spend a dark and stormy night on the couch with a bowl of popcorn and your favorite scary movie. The main character goes up to the haunted house, and the door opens by itself with a creak. As they walk through the house, the floorboards squeak under their feet and their breath comes in harsh pants. When they enter the room at the end of the hall, the door slams with a bang, the candles woosh out, and you jump in your seat and spill some popcorn! Read on to learn how movies deliberately incorporate sound to enhance the cinematic experience.
Metropolitan Acoustics, LLC is an acoustics and vibration consulting firm based in Philadelphia, PA