Hack #3: Replit · Replit
9 Apr, 12:14
Lingua Voice is a voice-based language learning PWA where users clone their own voice via ElevenLabs, then practice speaking a target language with an AI tutor that listens, responds, and speaks back in that same cloned voice. Each user gets a personalized 7-day curriculum generated by GPT-4o-mini based on their language, level, and goal, with lesson phrases they can hear pronounced in their own voice before recording. The platform uses ElevenLabs Scribe for speech-to-text, OpenRouter for AI chat, and Clerk for authentication — all wired into a React + Vite frontend backed by an Express + PostgreSQL API. It runs in demo mode with a 20-user cap and one curriculum per account to keep usage controlled during the preview.