At METS Lab, we specialize in Room Acoustic Testing, ensuring that spaces meet the highest standards for sound clarity, speech intelligibility, and noise control. Our testing services comply with ISO, ASTM, IEC, and EN standards, helping architects, engineers, and designers create acoustically optimized environments for auditoriums, music studios, theaters, conference halls, and residential spaces.
Why Room Acoustic Testing Matters?
Proper room acoustics enhance communication, reduce unwanted noise, and improve overall sound quality. Whether designing a recording studio, a lecture hall, or an office space, understanding how sound interacts with surfaces is crucial for achieving the best auditory experience.
Key benefits of room acoustic testing:
- Improved speech intelligibility for presentations, meetings, and performances.
- Enhanced sound clarity for music studios and entertainment venues.
- Reduced noise disturbances in residential and commercial spaces.
- Compliance with international acoustic standards for regulatory approvals.
Our Room Acoustic Testing Services
Reverberation Time Measurement
- Standards: ISO 3382, ASTM C423
- Purpose: Determines how long sound persists in a space, affecting speech clarity and acoustic comfort.
- Applications: Auditoriums, classrooms, conference rooms, theaters, music studios.
Sound Absorption Testing
- Standards: ISO 3382, ASTM C423
- Purpose: Determines how long sound persists in a space, affecting speech clarity and acoustic comfort.
- Applications: Auditoriums, classrooms, conference rooms, theaters, music studios.
Speech Intelligibility Testing (STI & RASTI)
- Standards: IEC 60268-16
- Purpose: Evaluates how clearly speech is transmitted in a space, ensuring effective communication.
- Applications: Public address systems, meeting rooms, lecture halls, performance venues.
Sound Transmission Testing
- Standards: ASTM E336, ISO 16283-1, EN ISO 10140 series
- Purpose: Assesses how sound travels between rooms, ensuring privacy and noise control.
- Applications: Hotels, offices, residential buildings, multi-use spaces.
Background Noise Level Assessment
- Standards: ISO 1996-1, ASTM E336.
- Purpose: Measures ambient noise levels to ensure compliance with acoustic comfort standards.
- Applications: Offices, hospitals, residential buildings, commercial spaces.
Testing Standards We Follow
METS Lab adheres to internationally recognized acoustic testing standards, ensuring compliance with regulatory requirements and industry best practices. Our testing follows:
ISO Standards (International Organization for Standardization)
- ASTM C423 – Sound absorption testing for materials.
- ASTM E336 – Measurement of airborne sound insulation in buildings.
- ASTM E90 – Laboratory measurement of airborne sound transmission loss.
- ASTM E1332 – Standard classification for rating outdoor-indoor sound attenuation.
ISO Standards (International Organization for Standardization)
- ISO 3382 – Measurement of room acoustics and reverberation time.
- ISO 16283-1 – Field measurement of airborne sound insulation in buildings.
- ISO 354 – Measurement of sound absorption in a reverberation room.
- ISO 1996-1 & ISO 1996-2 – Environmental noise assessment and monitoring.
- ISO 10140 series – Laboratory measurement of sound insulation of building elements.
EN Standards (European Norms)
- IEC 60268-16 – Speech intelligibility testing for public address systems.
- IEC 61672 – Electroacoustics – Sound level meters.
EN Standards (European Norms)
- EN ISO 10140 series – Measurement of sound insulation in buildings.
- EN ISO 16283-1 – Field measurement of airborne sound insulation in buildings.
- EN ISO 354 – Measurement of sound absorption in a reverberation room.
Optimizing Acoustic Performance
Beyond testing, METS Lab develops practical solutions to improve acoustic comfort in homes, offices, and commercial buildings:
- Enhancing sound insulation in walls, floors, and ceilings for better privacy.
- Optimizing room acoustics to improve speech intelligibility and sound clarity.
- Designing noise mitigation strategies for industrial and urban environments.
- Improving building service acoustics by minimizing mechanical noise disturbances.
Laboratory Measurement of Airborne Sound Insulation
At METS Lab, we follow laboratory and international methods for measuring the airborne sound insulation of various building elements:
- Walls, floors, doors, and windows.
- Façade elements and glazing.
- Ventilation panels and air transfer devices
The test procedure includes:
- Test room configuration – Establishing controlled source and receiving room conditions.
- Sound field measurements – Capturing sound pressure levels with high-precision microphones.
- Data processing and analysis – Calculating insulation metrics and acoustic performance ratings.
State-of-the-Art Testing Environment
Our laboratory is equipped with advanced acoustic measurement tools, including:
- Calibrated microphones and precision sound level meters.
- Reverberation chambers for absorption testing.
- Impact noise generators for floor insulation assessments.
- High-accuracy data processing software for acoustic analysis.