Building Vidya: An Ultra-Fast Bilingual Voice AI Tutor.
Over the past 10 days, as part of the #VoiceForBharat 10 Days of Voice Agents Challenge, I built Vidya — a real-time, bilingual (English/Hindi) AI Voice Tutor designed to make learning interactive, accessible, and human-like for students across India.
In this post, I’ll share the story of how Vidya came to life, dive into the architecture behind ultra-low latency voice agents, highlight the key features built over the 10 days, discuss the toughest challenges faced, and walk you through building your own production-ready voice agent using Murf Falcon TTS, LiveKit Agents, Deepgram STT, and Google Gemini.
1. Why Voice? Meet Vidya 🇮🇳
In India, text-based educational platforms often face a steep digital literacy and language barrier. Millions of learners feel intimidated by typing long queries or struggling through English-only user interfaces. Voice unlocks immediate, natural, and hands-free learning — allowing students to speak naturally in English, Hindi, or code-mixed Hinglish.
