News
What's new on Acoustic Index: tools, data, and features for search, comparison, and planning.
Partnership
Acoustic Index and Fuchs Raumingenieure are working together
Acoustic Index product data is coming to the room acoustics planner RAP. At Orgatec 2026 we are showing a second joint project.
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Product update
Reverberation calculator: plan rooms, save them and share a PDF report
Pick the room use instead of hunting for the standard, 26 standards from 15 countries, products with a suggested quantity. And rooms can now be saved, shared in a project and exported as a PDF report.
Platform
US standards: Acoustic Index now shows NRC, SAA and inches
Next to the language you can now choose the standards. The ASTM edition shows NRC and SAA per ASTM C423 instead of αw and absorber class, with all dimensions in inches, in every language.
Product update
Get answers faster: ask manufacturers straight from the product page
Price, finish or lead time: with “Send inquiry” your question goes straight to the manufacturer, with product and variant already included. No hunting for a contact form, no account needed.
Platform
Acoustic Index is now available in French
After English and Italian, French is the fourth language: search, every product page, manufacturer profiles and the reverberation calculator with the French requirements.
All updates
Building acoustics: sound insulation backed by test reports
Partition walls, floors, suspended ceilings, facade panels and noise barriers with Rw, Ln,w, Dn,f,w and DLR, every value with its source. Plus a dedicated search focus with matching filters.
Data
Depth and mounting: search now knows the installation situation
You have 40 mm above the ceiling, the convincing measurement needs 200. Search now filters by build-up depth and mounting type, down to the individual measurement.
Product update
Projects: build, compare, and share product lists
Saved products are now organised in projects, one per building or room. And projects can be shared: one link is all it takes, recipients don't need an account.
Product update
The reverberation calculator is now a tool of its own
Full screen instead of a form: model rooms to DIN 18041, add products straight from the catalogue, switch variants in the list.
Product update
Your own measurement data as a private library
Import Excel sheets, match them to the catalogue automatically, use them in search, comparison, and the calculator. Visible only to you.
Product update
Search understands more and responds faster
Compound terms, synonyms, and a much faster search path: search was fundamentally reworked over several weeks.
Platform
Green check marks: verified values at a glance
Every measurement shows how well it is substantiated: values backed by an accredited test report carry a green check, assessed per product variant.
Data
Acoustic Index is now available in English
Search, product pages, manufacturer profiles, and the calculator all run bilingually. Manufacturers reach planners beyond the DACH region.
Platform
An open read API for product data
The entire published catalogue, machine-readable: products, variants, and absorption spectra as JSON, with self-service access and an OpenAPI reference.
Platform
PTB reference materials as a dedicated search mode
The material-data mode places PTB reference measurements next to purchasable products: for early design phases and plausibility checks.
Data