Room & Field Acoustics
อะคูสติกห้องและภาคสนาม
Concert hall acoustics, auditorium design verification, and outdoor sound propagation studies.
อะคูสติกห้องแสดงคอนเสิร์ต การตรวจสอบการออกแบบห้องประชุม และการศึกษาการแพร่กระจายเสียงกลางแจ้ง
Typical Applications
Key Benefits
- •Optimize acoustic performance
- •Verify design predictions
- •Ensure speech clarity
- •Improve audience experience
Relevant Standards
Our equipment complies with international standards for room & field acoustics.
Recommended Products for Room & Field Acoustics
12 products available for this application
BEDROCK-I5
Bedrock Elite i5 STIPA Meter – Precision Speech Intelligibility & Acoustic Analysis
The Bedrock Elite i5 STIPA Meter, developed by the original innovators of the Speech Transmission Index (STI), is a state-of-the-art acoustic measurement instrument designed for professionals demanding the highest precision in speech intelligibility and comprehensive acoustic analysis. Engineered to deliver peak performance in Public Address (PA), Public Address and General Alarm (PAGA), voice evacuation alarms, and emergency voice alarm systems, the Bedrock Elite i5 sets a new benchmark in both accuracy and versatility. With full IEC 60268-16 (4th edition, 2011) compliance, the i5 guarantees precise, repeatable speech intelligibility measurements crucial for system certification, troubleshooting, and optimization. Beyond speech transmission, this advanced meter features multifaceted sound level measurements, vibration analysis, and detailed frequency spectrum evaluations essential in noise, vibration, and harshness (NVH) diagnostics, building acoustics assessments, environmental noise monitoring, and manufacturing quality control. Key Technical Features include: - IEC 60268-16 Standard compliance for STIPA speech intelligibility testing - High-resolution frequency analysis spanning wide acoustic bandwidths - Integrated sound level meter with A, C, and Z weighting filters - Vibration measurement capabilities applicable in industrial diagnostics - Robust data logging and report generation supporting ISO and ANSI guidelines Applications cover a broad spectrum of industries from automotive NVH engineers refining cabin sound quality, aerospace acoustic specialists monitoring cockpit communications, to consultants and researchers assessing building acoustics and public gathering safety. The Bedrock Elite i5’s rugged design and intuitive interface empower professionals with reliable, fast data acquisition in diverse and challenging environments. Ideal for engineers, acoustic consultants, researchers, and maintenance technicians, the Bedrock Elite i5 not only provides unparalleled measurement accuracy but also comes at a competitive price point ensuring excellence is accessible. Request a personalized quote today to elevate your acoustic analysis capabilities with the Bedrock Elite i5 – the professional standard in speech intelligibility and comprehensive acoustic measurement.
BEDROCK-SM30
Bedrock Elite SM30 Professional Sound Analyzer with FFT & Reverberation
The Bedrock Elite SM30 Sound Analyzer is a cutting-edge professional acoustic measurement instrument designed for precise noise and vibration analysis across multiple industries. Equipped with advanced FFT (Fast Fourier Transform) frequency analysis, this Class 2 sound level meter delivers highly accurate spectrum data essential for automotive NVH testing, aerospace acoustics, manufacturing quality control, and building acoustics. Key features include real-time spectrum analysis, octave and 1/3-octave band frequency evaluation, reverberation time (RT60) measurement, and compliance with international standards such as IEC 61672, ISO 1996, and ANSI S1.4. Its robust hardware architecture and versatile software interface provide intuitive data acquisition, reporting, and long-term environmental noise monitoring. The SM30 is ideal for engineers, acoustic consultants, researchers, and environmental professionals who demand reliable and repeatable sound measurements for certification, product development, and regulatory compliance. Whether conducting building acoustics assessments, noise mapping, or vibration analysis in research labs or industrial settings, the Bedrock Elite SM30 offers unparalleled precision and flexibility. Applications: - Automotive Noise, Vibration, and Harshness (NVH) testing - Aerospace acoustic environment studies - Manufacturing quality control for sound and vibration - Environmental noise and compliance monitoring - Building acoustics and reverberation time analysis Standards Compliance: - IEC 61672 Class 2 sound level meter - ISO 1996 series for environmental noise measurement - ANSI S1.4 measurement standards Experience professional-grade acoustic measurement with the Bedrock Elite SM30 for accurate, dependable results every time. Contact us today for a customized quote and elevate your acoustic analysis capabilities.
NOR283
Norsonic Nor283 Dodecahedron Loudspeaker for Precision Acoustic Measurement
The Norsonic Nor283 Dodecahedron Loudspeaker (Model NOR283) is an industry-leading professional-grade noise source designed for precise and reliable acoustic measurements. Engineered to provide omnidirectional sound radiation, the Nor283 is the ideal solution for building acoustics testing, room acoustic measurements, sound power determination, and environmental noise monitoring. Featuring a robust dodecahedron design, the Nor283 offers uniform sound distribution across all frequencies, ensuring accurate results in complex measurement environments. It supports critical acoustic parameters including sound level, frequency response, and vibration testing. Built to meet international standards such as IEC 60942 and ISO 3741, the Nor283 complies with stringent measurement requirements demanded by engineers and acoustic researchers. This sound source is widely used in various industries including building acoustics, automotive NVH testing, aerospace engineering, environmental noise assessment, and manufacturing quality control. Acoustic consultants, research laboratories, and environmental agencies rely on the Nor283 for its stability, repeatability, and high-output sound performance. Key features of the Norsonic Nor283 include professional-grade build quality, omnidirectional sound radiation, easy integration with acoustic measurement systems, and compatibility with common sound level meters and analyzers. Its lightweight yet durable construction allows straightforward setup in both lab and field conditions. Ideal for engineers, acoustic consultants, researchers, and quality assurance specialists, the Nor283 supports precise sound power measurements, room acoustic characterizations, and environmental noise investigations. It enables accurate assessment of acoustic insulation, sound propagation, and noise control solutions essential in product development, regulatory compliance, and environmental impact studies. For expert guidance and to request a personalized quote for the Norsonic Nor283 Dodecahedron Loudspeaker, contact our professional sales team today. Invest in trusted acoustic measurement technology with proven performance and global standards compliance.
NOR145
Norsonic NOR145 1-Channel Sound Analyzer for Building Acoustics & FFT Analysis
The Norsonic NOR145 Sound Analyzer is a professional-grade acoustic measurement instrument designed for precise sound and vibration analysis in building acoustics and beyond. Featuring advanced FFT frequency analysis, real-time spectrum monitoring, octave and 1/3 octave band filtering, and comprehensive sound level metering, the NOR145 offers unmatched accuracy and versatility for acoustic consultants, engineers, and researchers. Key benefits include its robust real-time spectrum analyzer that provides immediate detection and visualization of frequency components, making it ideal for identifying noise sources and assessing room acoustics. The onboard octave and 1/3 octave filters comply with international acoustic standards, enabling users to conduct standardized building acoustics testing and noise assessments. Technical specifications highlight the NOR145’s capability to perform both sound pressure level (SPL) measurements and frequency analysis with high dynamic range and low distortion. With compatibility to IEC 61672 Class 1, ISO 16283 for building acoustics testing, and ANSI standards, this instrument ensures legal and industry-standard compliance for critical measurements. Applications span automotive Noise, Vibration, and Harshness (NVH) testing, aerospace manufacturing QC, environmental noise monitoring, and particularly building acoustics including sound insulation, reverberation time, and impact noise analysis. This makes the NOR145 an indispensable tool for professionals conducting noise mapping, regulatory compliance audits, and acoustic research. Designed for ease of use in the lab or field, the NOR145 supports wireless connectivity and versatile data export, enabling seamless integration into complex acoustic measurement setups. Ideal for acoustic engineers, environmental consultants, researchers, and quality control inspectors seeking industrial-grade precision, the Norsonic NOR145 stands out as a benchmark tool for reliable sound measurement and analysis. Request a quote today to elevate your acoustic measurement capabilities with the NOR145 – precision you can trust.
NOR1227
Norsonic Nor1227 Free-Field Microphone – Precision Acoustic Measurement Mic
The Norsonic Nor1227 Free-Field Microphone (SKU: NOR1227) is a professional-grade acoustic measurement microphone designed for precise sound and vibration analysis across multiple industries. Engineered by Norsonic, a leader in high-quality sound measurement technology, the Nor1227 is tailored for demanding applications requiring consistent, calibrated performance. Key Benefits: - Accurate measurement of sound pressure levels, frequency responses, and acoustic parameters. - Robust design ensures reliable use in diverse environments including labs, construction sites, and field measurements. - Compatible with various preamplifiers and data acquisition systems for seamless integration. Technical Features & Specifications: - Type: Free-field measurement microphone optimized for on-axis sound capturing. - Frequency Range: Wide bandwidth for precise frequency analysis from low to high ranges. - Sensitivity: High sensitivity ensuring detection of subtle acoustic signals with minimal noise. - Calibration: Supplied with traceable calibration data compliant with IEC 61094-4 standards. - Durable housing designed for environmental resistance in professional testing scenarios. Applications: The Nor1227 excels in a broad range of acoustic measurement tasks including: - Building and room acoustics testing for sound insulation and reverberation evaluation. - Environmental noise monitoring aligned with regulatory compliance (ISO 1996, ANSI S1.4). - Noise, Vibration, and Harshness (NVH) assessments in automotive and aerospace sectors to enhance product quality. - Sound power and sound intensity measurements in manufacturing quality control. - Research and development in acoustics laboratories requiring high precision microphones. Standards Compliance: The Nor1227 conforms to international standards such as IEC 61094-4 for measurement microphones, ISO 9001 manufacturing processes, and is compatible with ISO 1996 and ANSI measurement procedures, ensuring trusted results in professional settings. Target Audiences: This microphone is ideal for acoustic engineers, consultants, researchers, environmental monitoring professionals, and quality control technicians who demand accuracy and reliability in sound measurement equipment. Upgrade your acoustic measurement capabilities with the Norsonic Nor1227 Free-Field Microphone, the trusted choice for professionals. Contact us today to request a quote or learn more about integrating the Nor1227 into your measurement systems.
BEDROCKELI-BTB115
Bedrock Elite BTB115 Advanced Talkbox - IEC-60268-16 STIPA & Full STI Generator for PA & Voice Alarm Testing
The Bedrock Elite BTB115 Advanced Talkbox is a professional-grade acoustic signal generator engineered for precise STIPA and Full STI speech intelligibility testing in public address (PA) systems, voice alarm systems, paging (PAGA) setups, and other critical voice communication environments. Designed by the pioneers who invented the STIPA method, this state-of-the-art instrument produces test signals that strictly comply with IEC-60268-16 Revision 5 (2020), ensuring reliable and standardized acoustic performance verification. Key Features & Technical Specifications: - Generates STIPA and Full STI test signals calibrated to IEC-60268-16 Rev. 5 (2020) with spectral accuracy within ±1 dB at 1/3 octave resolution - Unique acoustic design simulates human talker directivity and spectral characteristics for realistic measurement conditions - Compact, rugged construction suitable for field and laboratory use - Outputs optimized for PA system testing, voice alarm commissioning, and speech intelligibility measurement Applications: The BTB115 is indispensable in industries requiring stringent speech intelligibility assessment such as: - Building acoustics and compliance testing - Noise, Vibration, and Harshness (NVH) analysis in automotive and aerospace - Environmental noise monitoring - Manufacturing quality control of communication audio systems - Voice alarm and emergency announcement system commissioning Standards Compliance: Fully compliant with IEC-60268-16:2020 (Edition 5), the global benchmark for speech transmission index testing in PA and voice alarm systems. Suitable for engineers, acoustic consultants, researchers, and QA professionals who demand accuracy and reproducibility based on international standards. Target Audience: This advanced talkbox is designed for sound engineers, acoustic consultants, system integrators, building inspectors, and research institutions specializing in acoustic measurement and speech intelligibility analysis across various industries. Invest in the Bedrock Elite BTB115 to elevate your acoustic testing capabilities with an industry-leading solution that guarantees precision and compliance. Contact us today to request a quote and enhance your PA system and voice alarm commissioning processes with the most trusted STIPA and Full STI generator available.
BEDROCKELI-I10
Bedrock Elite i10 Class 1 Acoustic Meter with Full STI, FFT & Real-Time Spectrum
The Bedrock Elite i10 is the premier Class 1 acoustic measuring instrument engineered for professional sound and vibration analysis across various industries. Designed and manufactured in the Netherlands by the pioneering creators of STIPA, this advanced sound level meter offers unmatched precision combined with user-friendly touchscreen controls, ensuring laboratory-grade results even in demanding field environments. Key Benefits & Features: - Lightning-fast Full Speech Transmission Index (STI) testing under 65 seconds using the direct method, streamlining speech intelligibility assessments. - Comprehensive IEC 61672 Class 1 and ANSI S1.4 Type 1 compliance with Fast, Slow, and Impulse time weightings. - Multiple frequency weightings (A, C, Z) and integrated real-time spectrum analyzer with FFT (Fast Fourier Transform) for detailed frequency domain analysis. - Rugged, ergonomic design suitable for field use in challenging environments. Technical Specifications: - Class 1 Sound Level Meter certified to IEC 61672-1 and ANSI S1.4 standards. - Full STI measurement compliant with IEC 60268-16. - Real-time spectrum analyzer with high-resolution FFT capabilities. - Support for comprehensive acoustic parameters including Leq, Lmax, Lmin, Peak, and statistical noise metrics. Applications & Use Cases: Ideal for acoustic consultants, NVH engineers, environmental agencies, and researchers, the Bedrock Elite i10 excels in: - Environmental noise monitoring and compliance. - Building and architectural acoustics for speech clarity and noise control. - Automotive and aerospace NVH (Noise, Vibration, and Harshness) testing. - Manufacturing quality control where sound and vibration fidelity are critical. Standards Compliance: The instrument adheres rigorously to international standards, including IEC 61672 for sound level meters, IEC 60268-16 for speech transmission index, and ANSI S1.4 Type 1, guaranteeing trusted, repeatable measurements worldwide. Designed for engineers, acousticians, consultants, and researchers demanding top-tier performance, the Bedrock Elite i10 delivers unmatched accuracy combined with robust build quality. Request a personalized quote today to equip your team with the ultimate acoustic measurement solution.
NOR282
Norsonic Nor282 Power Amplifier for Precision Acoustic Measurement
The Norsonic Nor282 Power Amplifier is a professional-grade noise source designed to deliver accurate and reliable performance in a variety of acoustic measurement applications. Engineered with precision and durability, the Nor282 is ideal for building acoustics testing, room acoustics analysis, sound power determination, and environmental noise monitoring. This power amplifier offers stable and consistent output signals, making it a trusted choice for acoustic laboratories, environmental consultants, engineers, and researchers worldwide. Key technical features include a wide frequency range coverage, low distortion output, and compatibility with diverse acoustic sensors and analyzers. The robust design ensures stable operation under demanding field and laboratory conditions. The Nor282 supports measurement standards such as IEC 60942 (sound calibrator standards), ISO 3741 for sound power level determination, and complies with ANSI guidelines for sound measurement equipment. Applications for the Nor282 span multiple industries including automotive NVH (Noise, Vibration, and Harshness) testing, aerospace acoustic analysis, manufacturing quality control, environmental noise studies, and building acoustics certification. Acoustic engineers rely on the Nor282 to provide precision-driven sound levels for research and compliance testing, ensuring data integrity and repeatability. Ideal for professionals in construction acoustics, environmental consulting, manufacturing, and research organizations, the Nor282 Power Amplifier integrates seamlessly with Norsonic’s suite of sound measurement instruments for comprehensive acoustic analysis workflows. Request a quote today to enhance your acoustic measurement capabilities with the Norsonic Nor282 — the industry benchmark for professional-grade power amplification and noise source accuracy.
NOR280
Norsonic Nor280 Power Amplifier – Professional Acoustic Measurement Source
The Norsonic Nor280 Power Amplifier (SKU: NOR280) is a professional-grade acoustic noise source designed for precise sound and vibration measurement applications. Engineered to deliver high-quality, consistent output, the Nor280 is an essential tool for acoustic engineers, researchers, and consultants involved in building acoustics, noise and vibration analysis (NVH), environmental noise monitoring, and sound power determination. Built to meet rigorous international standards including IEC 60942 and ISO 3741, the Nor280 ensures accuracy and repeatability in laboratory and field acoustic testing. Its robust construction and stable performance support a wide frequency range, providing reliable broadband noise and frequency selectable noise generation. The amplifier’s power output capability ensures effective excitation of acoustic systems, enabling comprehensive sound level measurements and vibration analyses. Key technical features include: - Professional-grade power amplification compatible with Norsonic sound sources - Broadband and frequency-selective noise output for detailed acoustic characterization - High linearity and low distortion for accurate signal reproduction - Compliance with international acoustic measurement standards (IEC, ISO) - Compact and rugged design suitable for laboratory and on-site testing environments Use cases span multiple industries, including automotive NVH testing, aerospace sound control, manufacturing quality control, environmental noise assessments, and building acoustics evaluation. The Nor280 supports acoustic consultants performing room acoustic measurements, researchers conducting sound power testing, and construction specialists verifying vibration isolation performance. Ideal for professionals requiring consistent, high fidelity acoustic excitation, the Nor280 enhances measurement accuracy, enabling better diagnostics, compliance verification, and product development. Equip your acoustic laboratory or field testing kit with the Norsonic Nor280 Power Amplifier for reliable and standardized results. Contact us today to request a detailed quote and optimize your acoustic measurement setup with the Nor280 – the trusted choice for industrial and research-grade acoustic power amplification.
NOR131
Norsonic Nor131 Class 1 Sound Level Meter – Professional Noise & Acoustic Measurement
The Norsonic Nor131 Class 1 Sound Level Meter is a professional-grade acoustic measurement instrument engineered for precision sound and noise level assessment across diverse industrial and environmental applications. Designed to meet the demands of occupational hygiene specialists, environmental consultants, acoustic engineers, and researchers, the Nor131 delivers reliable, standards-compliant measurement with exceptional accuracy. Key benefits include a robust single measurement range of 20-140 dB, enabling comprehensive sound level coverage from quiet environments to loud industrial settings. It provides parallel LAeq and LCpeak measurements with a Quatro detector feature that offers simultaneous RMS and Peak readings from two different weighting networks. This advanced capability is essential for detailed sound analysis in automotive NVH (Noise, Vibration, Harshness) testing, aerospace acoustics, building acoustics, manufacturing quality control, and long-term environmental noise monitoring. Equipped with a large 5MB internal memory capable of storing up to 10,000 measurements, plus clock synchronized data logging, the Nor131 supports extended configurations including 1/1 and 1/3 octave real-time filter bands, level vs. time logging, comprehensive statistical analysis (Ln values), STIPA speech intelligibility testing, and reverberation time calculation. The meter incorporates a detachable IEPE preamplifier compatible with extension cables up to 30 meters, enabling flexible sensor placement in the field. For challenging outdoor environments, it is compatible with the Nor1218 outdoor microphone protection kit, facilitating reliable long-term environmental acoustic monitoring. The Nor131 fully complies with international standards including IEC 61672-1 Class 1, ANSI S1.4, and relevant ISO directives, assuring measurement traceability and accuracy required for regulatory and industrial applications. Ideal for professional acoustic measurement in occupational hygiene, environmental noise assessments, noise control engineering, and research, the Norsonic Nor131 provides intuitive operation combined with advanced measurement functionality. Its durable design and high precision make it a preferred tool for engineers, noise consultants, researchers, and quality assurance teams. Request a quote today to enhance your acoustic measurement capabilities with the reliable and accurate Norsonic Nor131 Class 1 Sound Level Meter. Elevate your noise monitoring and acoustic analysis projects with this advanced, industrial-grade instrument.
FEMTOOLS-OPTIMIZATION
FEMtools Optimization Software – Structural & Acoustic Design Toolbox for NVH & Vibration Analysis
FEMtools Optimization Software is a professional-grade structural and acoustic design toolbox developed by FEMtools to empower engineers, researchers, and consultants with advanced optimization and precise measurement in sound and vibration analysis. This comprehensive software solution is engineered to enhance the efficiency and accuracy of structural design workflows, particularly targeting noise, vibration, and harshness (NVH) reduction challenges prevalent in automotive, aerospace, manufacturing quality control, and building acoustics industries. Designed with advanced finite element method (FEM) algorithms, FEMtools Optimization provides robust capabilities for detailed modeling, frequency response analysis, modal optimization, and sensitivity studies. Its built-in measurement integration supports sound level and vibration data acquisition, enabling users to perform real-world validations and improve product performance. As a result, it helps teams meet stringent industry standards such as IEC, ISO, and ANSI, ensuring compliance with international acoustic and vibration regulations. Key features include: - Sophisticated vibration and sound level measurement and analysis - Frequency response function (FRF) calculations for modal testing - Structural modal optimization to reduce NVH and enhance durability - Multi-disciplinary optimization combining acoustic and mechanical parameters - Sensitivity analysis for targeted design improvements - Compatibility with FEM models for seamless workflow integration Applications of FEMtools Optimization span across multiple industries where precision and reliability are critical—from automotive NVH engineering to aerospace structural health monitoring, manufacturing quality assurance, building vibration control, and environmental noise assessment. Engineers and acoustic researchers will find this tool indispensable for designing quieter, more durable products while ensuring regulatory compliance. Consultants will benefit from its robust data integration and reporting capabilities, enabling them to provide expert insights and solutions. Request a quote today to discover how FEMtools Optimization can elevate your structural and acoustic design process, improve product quality, and accelerate time-to-market with professional industrial-grade precision and compliance.
BEDROCK-I9
Bedrock Elite i9 Class 1 Acoustic Analyzer with Advanced FFT & Octave Analysis
The Bedrock Elite i9 Class 1 Acoustic Measuring Instrument is a professional-grade sound analyzer engineered for precise and reliable acoustic and vibration measurements across diverse industrial applications. Equipped with advanced Fast Fourier Transform (FFT) frequency analysis and supporting octave and 1/3-octave band measurements, this Class 1 sound level meter delivers highly accurate, real-time spectral data visualization and comprehensive environmental noise monitoring. Designed for robustness and exceptional precision, the Bedrock Elite i9 is ideal for critical applications such as automotive Noise, Vibration, and Harshness (NVH) testing, aerospace vibration assessment, building acoustics optimization, industrial manufacturing quality control, and environmental noise evaluation. It covers a wide frequency range and incorporates powerful data acquisition and analysis tools that facilitate detailed diagnostic insights. The instrument fully complies with international standards including IEC 61672-1 Class 1, ANSI S1.4, and ISO standards, ensuring dependable and repeatable results in both laboratory and field environments. Its ergonomic design, durable construction, and advanced measurement capabilities make it the top choice for engineers, acoustic researchers, consultants, and environmental professionals. Key Technical Features: - Precision Class 1 sound level measurement - Advanced FFT spectral analysis with real-time spectrum display - Octave and 1/3-octave band frequency analysis - Comprehensive environmental noise monitoring capability - Wide dynamic range and broad frequency response - Compliance with IEC 61672-1, ANSI, and ISO standards Applications: - Automotive NVH testing to identify and mitigate noise and vibration issues - Aerospace vibration measurement for structural health and performance analysis - Building and architectural acoustics for noise control and sound insulation evaluations - Industrial manufacturing quality control ensuring equipment noise levels are within spec - Environmental noise monitoring for urban and workplace compliance Targeted for acoustic engineers, industrial researchers, environmental consultants, and quality control professionals, the Bedrock Elite i9 enables superior measurement precision and comprehensive sound analysis. If you require a reliable Class 1 acoustic analyzer with cutting-edge FFT and octave band analysis, request a quote today and enhance your acoustic measurement capabilities.
About Room & Free-Field Acoustics Measurement
Room acoustics measurements characterise the acoustic behaviour of enclosed spaces — concert halls, classrooms, offices, studios — using parameters defined in ISO 3382: reverberation time (T20, T30, EDT), clarity (C80, C50), definition (D50), and strength (G). Free-field and semi-anechoic measurements require precision measurement microphones (IEC 61094-4 WS2F, WS1F), low-noise preamplifiers, and multi-channel analyzers. Placid Asia supplies Norsonic measurement microphones, preamplifiers (Nor1209, Nor1210), and conditioner systems for both laboratory and on-site acoustic characterisation.
Recommended Instruments
PLACID PMP-Series Measurement Microphones
IEC 61094-4 WS2F/WS1F precision condenser microphones for laboratory and field use
Norsonic Nor1209 / Nor1210
Precision microphone preamplifiers with 200V/28V IEPE supply
Norsonic Nor150 / Nor145
Multichannel sound analyzer supporting impulse response measurement for ISO 3382
Applicable Standards
Frequently Asked Questions
What parameters does ISO 3382 define for room acoustics?
ISO 3382-1 defines T20, T30 (reverberation times), EDT (early decay time), C80 (clarity for music), G (strength), and IACC (interaural cross-correlation coefficient). ISO 3382-2 adds T20, T30, C50, and D50 for speech intelligibility in ordinary rooms.
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Our application engineers have extensive experience in room & field acoustics and can help you design the perfect measurement solution.
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