Precision-driven noise evaluation supporting every stage - from concept to certification.
Overview
Accurate acoustic testing is essential for regulatory compliance, optimising product performance, and ensuring a positive user experience. At our Acoustics Testing Laboratory, we deliver precise, standards-aligned evaluations for alarm systems, consumer electronics, IT and telecom equipment, medical devices, and industrial products.
By combining real-time measurements with early-stage diagnostic support, we help identify and resolve noise-related issues well before final validation – reducing redesign cycles and strengthening overall product quality.
Our Services
- Real-Time Acoustic Analysis
Live measurement of loudness, spectral characteristics, and transient behaviour to verify alarm and signal performance under representative operating conditions. - Compliance & Noise Emission Testing
Standards-based determination of sound power and sound pressure levels, supported by comprehensive reporting aligned with medical, industrial, and consumer product requirements. - User Experience & Perceptual Noise Assessment
Objective and perceptual evaluations - including structured listening tests, tonal analysis, and time-domain assessments - to identify acoustic characteristics that may influence user comfort and product acceptance. - Design-Stage & Pre-Compliance Support
Early diagnostic testing during concept and prototype development to detect, analyse, and mitigate potential noise concerns, helping to shorten development timelines and reduce regulatory risk.
Our Role
We operate as an independent acoustic evaluation partner, supporting engineering and compliance teams with technical robust methodlogies and reliable data.
Our support includes:
- Selection of appropriate test methods and applicable standards
- Chamber-based measurements under controlled acoustic conditions
- Clear, structured reports including pass/fail determinations, raw data, annotated spectra, and technical observations
- Engineering-focused recommendations such as damping optimisation, enclosure modification, filtering adjustments, or alarm tuning guidance
Benefits at a Glance
- Demonstrable regulatory compliance
- Reduced redesign risk and associated development costs
- Improved user satisfaction through perceptual noise insights
- Shorter time-to-market through structured pre-compliance evaluation
- Actionable engineering input - not only measurement data
State-of-the-Art Acoustics Laboratory
Our fully equipped acoustic chamber enables comprehensive verification across a wide range of product categories.
Facility Specifications
- Chamber dimensions: 10 m x 10 m x 5 m
- Background noise level: 16 dB(A)
- Lower cut-off frequency: 100 Hz
- Dynamic range: up to 130 dB
- Maximum equipment size: 3 m x 3 m
- Air-conditioned environment to maintain thermal stability during extended test durations
Standards We Test Against
We conduct testing in accordance with internationally recognised standards, including:
- IEC 60601-1-8: Alarm systems in medical electrical equipment
- ISO 3744 / ISO 3745: Determination of sound power levels using sound pressure
- ISO 7779: Measurement of airborne noise emitted by IT and telecommunications equipment
- IEC 60704 series: Noise emission for household and similar appliances
- IS 8148 and IS1391 (Part 2): Air conditioner noise measurement
- ISO 15744: Noise measurement of hand-held non-electric power tools
Accreditations
Our laboratory operates under NABL-accredited quality systems, ensuring traceable measurements, validated methodologies, and consistent quality control processes.
Why Choose TÜV Rheinland
- Established expertise in acoustic measurement, psychoacoustics, and noise control
- Balanced evaluation combining objective metrics with perceptual analysis
- End-to-end support - from early diagnostics to certification-ready documentation
- High-fidelity data enabled by low background noise levels and a wide dynamic range
Typical Test Process
- Initial Review: Product evaluation and identification of applicable standards
- Pre-Test Setup: Positioning, conditioning, and instrumentation calibration
- Measurement: Capture of steady-state, transient, and perceptual acoustic data
- Analysis: Determination of SPL, sound power levels, spectral content, and psychoacoustic indicators
- Reporting & Recommendations: Clear, structured documentation with annotated results and prioritised improvement guidance
Accurate acoustic testing supports both regulatory compliance and user acceptance. Our laboratory provides the measurement precision, standards expertise, and engineering insight required to develop quieter, safer, and compliant products.
Ensure your product meets global noise requirements with confidence. Contact our team to initiate your acoustic evaluation programme.
