Line 21 Live Captions

Hey Product Hunt! 👋 We’re excited to introduce Line 21! We built Line 21 to solve a major problem in live events and digital media: bad captions. 🎤🎥 Whether it’s a conference, esports event, or live stream, captions often suffer from embarrassing errors—wrong names, niche references lost in translation, and specialized terminology getting butchered. Existing solutions are either too expensive (human captioning) or too inaccurate (AI speech recognition). 💡 Enter Line 21—an AI-powered live captioning infrastructure that merges AI automation with human expertise. Our AI Proofreader corrects captions in real time, improving accuracy by learning from context, speaker changes, and event-specific jargon. Whether you’re an event organizer, AV production company, or broadcaster, we ensure captions that are scalable, cost-effective, and actually make sense. ✨ Key Features: ✅ AI Proofreader – Enhances real-time captions for accuracy and context ✅ Seamless integrations – Works with streaming platforms, AV setups, and second screens ✅ Multilingual support – Live captions & translations for global audiences ✅ Eco-friendly – Reduces reliance on in-person captioners, lowering travel & costs We’d love your feedback! 🚀 If you’re in live events, media, or accessibility tech, let us know how Line 21 can help. Also, we’re offering early access perks for the Product Hunt community—drop us a comment or DM if you’re interested. 🎉 Looking forward to hearing your thoughts! 💬🔥