Core Idea: Real-time voice and video translation that’s so seamless it feels like subtitles for real life. Key Features 1. Dual-Voice Mode – When two people speak different languages, the app acts like a “conversation bridge.” • Each person hears the other in their own voice (synthetic voice cloning) but translated. • Example: A Japanese speaker hears your English sentence in Japanese, but it still sounds like you. 2. Augmented Reality Subtitles – • If used with glasses (Apple Vision Pro, Ray-Ban Meta, etc.) or just a phone camera, it shows live captions in the real world under the person speaking. • Great for travel or business meetings. 3. Offline Packs – • No internet? Download a language pack for offline use — perfect for rural travel. 4. Cultural Context Mode – • Not just literal translation — it adapts idioms, slang, and polite forms. • Example: Instead of translating “break a leg” literally, it gives the equivalent phrase in the other culture. 5. Group Meeting Mode – • In a Zoom/Teams/Google Meet call, each participant hears everything in their native language, without needing to change the meeting setup. Tech Stack Suggestion • Speech Recognition: Whisper API (OpenAI) or Vosk for offline. • Translation Engine: NLLB (Meta), DeepL, or Google Cloud Translation API. • Voice Synthesis: ElevenLabs for realistic voice cloning. • AR Captions: OpenCV + ARKit/ARCore. • Platform: Start as mobile (iOS/Android), then expand to desktop plugin + AR glasses. Monetization • Free tier: 30 minutes per month. • Paid tier: Unlimited + premium voices + offline packs. • Business tier: API for companies hosting multilingual meetings.