# An efficient perceptual hashing based on improved spectral entropy for speech authentication

> Research article (Multimedia Tools and Applications, 2017) · cited 20× · AI/ML

**Wikidata**: [openalex:W2576628357](https://www.wikidata.org/wiki/openalex:W2576628357)  
**Source**: https://4ort.xyz/entity/an-efficient-perceptual-hashing-based-on-improved-spectral-entropy-for-speech-authentication