# Echo threshold between passive and electro-acoustic transmission paths in digital hearing protection devices

> Research article (International Journal of Industrial Ergonomics, 2016) · cited 11× · AI/ML

**Wikidata**: [openalex:W2343952293](https://www.wikidata.org/wiki/openalex:W2343952293)  
**Source**: https://4ort.xyz/entity/echo-threshold-between-passive-and-electro-acoustic-transmission-paths-in-digital-hearing-protection-devices