Why “Dr-45” Isn’t Always Enough – How Door and Vent Design Define Real-World Sound Isolation –

Notification of Specification Changes and Price Revision for Standard Products

How “Silence” Has Been Redefined Over Time – The Evolution of Audiometric Room Standards in ISO 8253 and JIS T 1201 –

Redesigning Silence: How to Succeed with Audiometry Room Renovations – Maximizing sound isolation performance under structural and budget constraints –

A Smarter Choice for Better Results: Why New Construction Is Better Than Renovation for Audiometry Rooms – Acoustic performance isn’t easy to fix later. Here’s why it’s best to build it right from the start –