Capturing License Plates Reliably in Multilingual Voice Agents

Bemaitis · reddit · 2026-08-24

A developer is building a voice agent using LiveKit Cloud and Soniox TTS, tasked with capturing license plates during calls. The initial approach of asking drivers to read the plate normally achieved only 50% accuracy, failing on letters like 'Z'. Introducing a phonetic alphabet improved accuracy substantially but extended the process to nearly two minutes, causing frustration. Callers speak English, Russian, or Portuguese, often with strong non-native accents. The author seeks production-proven solutions for this challenge.

Original post →

More from coding & agent

coding & agent channel →