# EchoWrite: An Acoustic-Based Finger Input System Without Training

> Research article (IEEE Transactions on Mobile Computing, 2020) · cited 37× · AI/ML

**Wikidata**: [openalex:W3006378440](https://www.wikidata.org/wiki/openalex:W3006378440)  
**Source**: https://4ort.xyz/entity/echowrite-an-acoustic-based-finger-input-system-without-training