Nor850 Room Acoustics (ISO 3382)
Nor850 module for room acoustics analysis and reporting per ISO 3382.
Overview
The Nor850 Room Acoustics module is a specialized add-on for the Nor850 Reporting Software platform, providing comprehensive analysis and reporting capabilities for room acoustics measurements performed according to ISO 3382. The module calculates a full set of room acoustic parameters from impulse response and interrupted noise measurements captured by the Nor145 or Nor150 analyser. Calculated p…
Key Features
- Full ISO 3382 parameter calculation: T20, T30, EDT, C50, C80, D50, Ts
- Speech Transmission Index (STI) per IEC 60268-16
- Decay curve analysis with Schroeder integration
- Multi-position averaging with spatial distribution analysis
- Lateral energy fraction for spatial impression assessment
- Professional report templates with frequency-dependent charts
- Comparison against target values and design criteria
- Support for interrupted noise and impulse response methods
Applications
- Concert hall and performance space acoustics verification
- Classroom and auditorium acoustic assessment per standards
- Open-plan office acoustic performance evaluation
- Mosque and worship space reverberation optimization
- Hospitality venue acoustic design verification
- Sports venue and arena acoustics assessment
Technical Specifications
- Standards: ISO 3382-1, ISO 3382-2
- Platform: Windows (Nor850 add-on)
- Parameters: T20, T30, EDT, C50, C80, D50, Ts, STI
Frequently Asked Questions
- Which room acoustic parameters are calculated?
The module calculates reverberation time (T20, T30, EDT), clarity (C50 for speech, C80 for music), definition (D50), centre time (Ts), lateral energy fraction, and Speech Transmission Index (STI) per IEC 60268-16, all across standard octave frequency bands. - Can I compare multiple measurement positions?
Yes, the software supports multi-position measurements with statistical averaging and spatial distribution analysis. This enables assessment of acoustic uniformity across large spaces and identification of positions with atypical acoustic characteristics. - What measurement methods are supported?
The module supports both interrupted noise and impulse response measurement methods as defined in ISO 3382. Impulse responses can be generated using dodecahedron loudspeakers with MLS or swept sine signals, or using impulsive sources such as the Nor286 ORIGAMI.
Application Guide
The Nor850 Room Acoustics (ISO 3382) belongs to the Norsonic Software range. See the Software application guide for system configuration, compatible accessories, and applicable measurement standards.
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Why Norsonic?
- Manufactured in Norway — decades of acoustic measurement heritage; all instruments designed and built in Norsonic AS, Lierskogen, Norway
- IEC 61672 Class 1 — highest accuracy class for professional and regulatory acoustic measurement
- International type approvals — PTB (Germany) and LNE (France); accepted by environmental authorities across the region
- 3-year manufacturer warranty — covers parts and labour; Norsonic Asia authorized service center support throughout the region
- Open data formats — .nox files work with NorReview and can be exported to CSV, Excel, and third-party analysis software
Calibration and Compliance
- All Norsonic instruments require periodic IEC 61672-3 calibration — Norsonic Asia provides factory-authorized calibration services with full DANAK-traceable certificates
- Calibration interval: 1 year for ISO 17025 accredited laboratories; 2 years for field instruments in non-accredited applications
- Field calibration check: use an IEC 60942 Class 1 sound calibrator (94 dB or 114 dB) before and after each measurement session
- Loaner instruments available during calibration to minimize project downtime — contact Norsonic Asia for loaner availability
Availability & Regional Support
Available from Norsonic Asia — the factory-authorized distributor for ASEAN, GCC, and South Asia. Instrument supply includes 3-year manufacturer warranty, factory-authorized calibration services, operator training, and after-sales technical support.
- Typical lead time: 3–6 weeks from order confirmation (ex-factory Norway)
- Countries served: Singapore, Malaysia, Thailand, Vietnam, Philippines, Indonesia, UAE, Saudi Arabia, Qatar, Kuwait, India, Bangladesh, Sri Lanka, and more
- Technical support: English and Arabic; response within 1 business day
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