Global reference · Not a legal judgment

Compare records with common noise guidance, without overclaiming compliance.

SOUNDTEST.PRO can show WHO-style public health context, day/night categories, and local authority references. It does not tell users that a sound is illegal, enforceable, or police-ready.

Record a noise session See report fields Measurement limits
WHO context

WHO guidance context

Use public health noise guidance as context for sleep, transport, community, and long-term exposure discussions.

Reference guidance only. Local rules vary and formal assessment needs qualified procedures.

Time windows

Day and night categories

Many cities treat nighttime noise differently from daytime noise. Reports should preserve time, duration, place, and notes.

Reference guidance only. SOUNDTEST.PRO does not decide compliance.

Authorities

US / EU / local authority context

Use records to organize facts before speaking with landlords, local authorities, building managers, or legal advisers.

Reference guidance only. Reports are not certified measurements.

Display rules

What SOUNDTEST.PRO may display

  • Daytime / nighttime context labels.
  • WHO-style public health reference text.
  • Local-rule reminder based on the user's region when known.
  • Clear recommendation to verify formal claims with certified equipment.
Do not use SOUNDTEST.PRO to claim that a neighbor, venue, construction site, or workplace has broken the law. Local rules vary by city, lease, building policy, and measurement method.
Standards

Referenced standards & guidelines

  • IEC 61672-1:2013 — Electroacoustics: Sound Level Meters (Class 1 & Class 2 specifications)
  • ISO 1996-1:2021 — Acoustics: Description, measurement and assessment of environmental noise
  • WHO Environmental Noise Guidelines (2018) — for the European Region (WHO Regional Office for Europe)
  • NIST Traceable — Calibration reference framing; formal calibration should be performed against NIST-traceable reference meters

SOUNDTEST.PRO uses A/C/Z weighting and LAeq computation modeled after IEC 61672 instrument classes. Browser microphone measurements are documentation-grade estimates, not substitutes for certified metrology.