SoundPLAN Asia Blog

Expert insights on noise modeling, acoustic standards, environmental impact assessment, and occupational noise management.

SoundPLAN Asia supplies SoundPLAN noise mapping, noise prediction and acoustic modelling software across Asia and the Middle East, supporting 50+ international calculation standards including ISO 9613-2, CNOSSOS-EU and ISO 9612.

Latest articles

• CNOSSOS-EU explained: what it is, what it replaced, and who has to use it

  CNOSSOS-EU is the common noise assessment method that replaced Annex II of the Environmental Noise Directive. What it covers, the legal instruments behind it, the thresholds that trigger it, and how it differs from ISO 9613-2.

  Industry Standards · 2026-09-21 · 9 min read

• How to choose noise prediction software: the questions that decide it

  A practical checklist for selecting noise mapping and prediction software: which calculation standards you must report against, model scale, source types, outputs, data import, licensing and traceability.

  Noise Mapping · 2026-09-21 · 8 min read

• What a noise impact assessment has to contain

  The structure of a defensible noise impact assessment: baseline, construction and operational phases, receptor selection, criteria, mitigation and uncertainty - and the omissions that get reports sent back.

  Environmental Assessment · 2026-09-21 · 8 min read

• Transportation noise assessment: road, rail and the differences that matter

  Road and rail noise behave differently and are assessed differently. Source characteristics, the inputs that govern accuracy, where barriers work, and why option comparison beats single-scheme reporting.

  Transportation · 2026-09-21 · 8 min read

• Understanding ISO 9613-2: industrial noise prediction in practice

  What ISO 9613-2 actually calculates, the attenuation terms it uses, the conditions it assumes, and where it stops being valid. A practical guide for engineers predicting industrial noise.

  Industry Standards · 2026-09-19 · 9 min read

• Noise assessment for oil and gas facilities: the two problems people confuse

  Refineries and gas plants carry two separate noise obligations - worker exposure and community impact - measured differently, against different standards. How to model both without conflating them.

  Industrial Noise · 2026-09-19 · 8 min read

• Noise mapping for smart cities: what the data is actually for

  Strategic noise maps are planning instruments, not pictures. What goes into one, what CNOSSOS-EU and Lden mean, and how exposure data turns into action plans that change decisions.

  Urban Planning · 2026-09-19 · 8 min read