NVHWind / data centers / energy storage / local environmental agencies
Long-Term Environmental Noise Compliance Monitoring
01
Pain Points
- !Long recordings need equivalent levels while also identifying narrowband hum and wind-turbine blade modulation.
- !Day/evening/night compliance evaluation involves so much data that manual work is impractical.
- !Weather/wind speed must be analyzed in alignment with the acoustic quantities.
02
The Tinia Approach
Equivalent level + tonal-prominence assessment + day-evening-night evaluation, with acoustic quantities aligned to wind speed — build once and rerun automatically for long-term monitoring.
A-weightingEquivalent levelTonality + TNRDay-evening-night groupingLong-term compliance report
03
Nodes Used
Frequency Weightingweighting_filter
A-weightingSound Level Meterlevel_meter
Equivalent levelOctave Analysisoctave_analysis
Band decompositionTonalitytonality
Narrowband hum assessmentTNRtnr
Tone-to-noise ratio prominenceIndicator Mathindicator_math
Time-period grouping and limit indicatorsCore nodes; add or remove steps as needed for your data and standards — the node graph is always editable.
04
Expected Output
- Equivalent-level curves that vary with time / wind speed.
- Tonal-prominence (hum) assessment.
- A day / evening / night compliance report.
Reference Standards / Engineering PracticeIEC 61400-11 · ISO 1996-2 · GB 3096
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