News
What's new on Acoustic Index: tools, data, and features for search, comparison, and planning.
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.
Read more →All updates
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