# On the Design of an Energy Efficient Digital IIR A-Weighting Filter Using Approximate Multiplication

> Research article (Sensors, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3121894155](https://www.wikidata.org/wiki/openalex:W3121894155)  
**Source**: https://4ort.xyz/entity/on-the-design-of-an-energy-efficient-digital-iir-a-weighting-filter-using-approximate-multiplication