# The sound insulation of façades at frequencies 5–5000 Hz

> Research article (Building and Environment, 2019) · cited 27× · AI/ML

**Wikidata**: [openalex:W2925747035](https://www.wikidata.org/wiki/openalex:W2925747035)  
**Source**: https://4ort.xyz/entity/the-sound-insulation-of-facades-at-frequencies-55000-hz