Why Test?
Acoustic testing verifies that a room or building element meets its performance target. It converts design intent into measured fact, and is the reliable way to diagnose problems and confirm compliance.
What Can Be Tested
- Reverberation time (RT60) — measures how long sound lingers; used for speech clarity and room treatment design. See What Is RT60?.
- Airborne sound insulation (STC/Rw) — how well a wall/floor/ceiling blocks airborne sound. See How Sound Insulation Is Measured.
- Impact sound insulation (IIC/Ln,w) — how well a floor isolates footstep noise.
- Background noise — the residual noise level from HVAC and equipment.
- Sound absorption (α/NRC) — material absorption per ISO 354 / ASTM C423.
When Each Is Used
- RT60 — offices, meeting rooms, schools, auditoriums (room acoustics).
- Airborne/impact insulation — separating walls and floors between dwellings or rooms (insulation).
- Background noise — to check HVAC/mechanical noise targets.
Relevant Standards
- ISO 3382 — room acoustic parameters (RT60).
- ISO 10140 / ISO 16283 — insulation (laboratory / field).
- ISO 354 / ASTM C423 — absorption.
Limitations
Each test answers a specific question; no single test covers everything. Field and laboratory results differ (laboratory isolates the element).
Related Yamamah Solutions
For acoustic testing of your space, contact us for a free acoustic consultation.
Frequently Asked Questions
Which test do I need? It depends on the problem: RT60 for echo/clarity, insulation tests for noise between rooms, background noise for HVAC issues.
Is field or lab testing better? Lab tests the element; field tests the actual installation including flanking. They serve different purposes.
Verified Sources
- ISO 3382 / ISO 10140 / ISO 16283 / ISO 354.
- ASTM C423.