The latest articles on DEV Community by Prakhar Singh (@prakhar2509). https://dev.to/prakhar2509 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F1378519%2Fca6fd09f-b850-41ef-9ec6-71c35b449a55.png https://dev.to/prakhar2509 en Prakhar Singh Sun, 29 Jun 2025 14:18:40 +0000 https://dev.to/prakhar2509/vocalearn-ai-powered-language-learning-platform-murf-ai-coding-challenge-2-project-3cgo https://dev.to/prakhar2509/vocalearn-ai-powered-language-learning-platform-murf-ai-coding-challenge-2-project-3cgo <h2> VocaLearn – Real-Time AI Language Tutor 🎙🌍 </h2> <p>This is a submission for the <a href="https://lu.ma/0dzhcc01?tk=aKMhUX" class="crayons-btn crayons-btn--primary" rel="noopener noreferrer">Murf AI Coding Challenge 2</a> </p> <h2> 🧠 What I Built </h2> <p><strong>VocaLearn</strong> is an AI-powered language learning platform that simulates natural conversations using real-time speech recognition, intelligent AI replies, and Murf’s lifelike voice responses. It helps users speak confidently, get real-time pronunciation feedback, and practice real-world scenarios — all without needing a human tutor.</p> <p>You choose a scenario → Speak into your mic → The AI responds naturally → Murf voices deliver it back with native pronunciation.</p> <p><strong>Simple. Powerful. Immersive.</strong></p> <h2> 🚀 Demo </h2> <p>🔗 <strong>Live Demo</strong>: <a href="https://voca-learn.vercel.app" rel="noopener noreferrer">https://voca-learn.vercel.app</a><br> 📹 <strong>Demo Video</strong>: <iframe src="https://www.youtube.com/embed/T27jquCdCKQ"> </iframe> <br> 💻 <strong>GitHub Repo</strong>: <a href="https://github.com/KanishkSogani/VocaLearn" rel="noopener noreferrer">https://github.com/KanishkSogani/VocaLearn</a></p> <h2> 🧰 How I Used Murf API </h2> <p>🎤 <strong>Text-to-Speech with Murf</strong></p> <ul> <li>Converts AI-generated responses into realistic, native-speaker audio </li> <li>Streams Murf voices via WebSocket for low-latency conversation </li> </ul> <p>🌍 <strong>Multilingual Voice Support</strong></p> <ul> <li>Utilizes Murf's voice library for 9+ languages (Spanish, French, Hindi, Japanese, etc.) </li> <li>Custom voice profiles per scenario — e.g., formal tone for business, casual for travel </li> </ul> <h2> 🔥 Use Case &amp; Impact </h2> <p>VocaLearn provides 24/7 access to personalized language practice with immersive features that make learning more effective and engaging.</p> <p>👩‍🎓 <strong>Students</strong> – Practice speaking skills anytime, anywhere<br><br> 👨‍💼 <strong>Professionals</strong> – Prepare for international meetings and presentations<br><br> 🌐 <strong>Travelers</strong> – Simulate real-world conversations abroad<br><br> 🧑‍🏫 <strong>Educators</strong> – Use as a language lab assistant or speaking tool<br><br> 🧠 <strong>Auditory Learners</strong> – Learn better through listening and speaking</p> <h3> 🌍 Real-World Applications </h3> <p>🗂 <strong>Business Communication</strong> </p> <ul> <li>Practice client meetings and foreign-language presentations </li> <li>Simulate negotiations with proper etiquette and tone </li> </ul> <p>✈️ <strong>Travel Preparation</strong> </p> <ul> <li>Hotel check-in, airport conversations, asking for directions </li> <li>Restaurant ordering and local interaction scenarios </li> </ul> <p>👫 <strong>Social &amp; Cultural Integration</strong> </p> <ul> <li>Build confidence in everyday conversations </li> <li>Cultural sensitivity training and speech nuance </li> </ul> <p>🎓 <strong>Academic Support</strong> </p> <ul> <li>Oral exam prep and pronunciation training </li> <li>Real-time spoken interaction to support theory</li> </ul> <h2> 🔄 How VocaLearn Improves Existing Solutions </h2> <p>Traditional language tools often fall short in real-time speaking practice. <strong>VocaLearn</strong> fills the gap with immersive, AI-driven conversation.</p> <div class="table-wrapper-paragraph"><table> <thead> <tr> <th>Existing Approach</th> <th>VocaLearn Advantage</th> </tr> </thead> <tbody> <tr> <td>💸 One-on-one tutoring is expensive</td> <td>🎯 Affordable, on-demand AI conversation partner</td> </tr> <tr> <td>🕒 Classroom speaking time is limited</td> <td>🕐 24/7 real-time speaking practice</td> </tr> <tr> <td>📱 Static apps lack natural conversations</td> <td>🗣️ Dynamic, context-aware dialogue</td> </tr> <tr> <td>😬 Language exchanges can be awkward</td> <td>🤖 Private, judgment-free AI speaking practice</td> </tr> <tr> <td>🧾 Feedback is often delayed</td> <td>⚡ Instant pronunciation &amp; fluency feedback</td> </tr> </tbody> </table></div> <h2> 🧩 Bonus Features </h2> <p>🧠 <strong>Context Memory</strong> </p> <ul> <li>AI remembers previous replies for natural continuity </li> </ul> <p>📊 <strong>Pronunciation Feedback (Optional)</strong> </p> <ul> <li>Scores based on phoneme similarity and timing </li> </ul> <p>🌐 <strong>Multi-language Adaptability</strong> </p> <ul> <li>Backend switches TTS voices and STT languages on the fly </li> </ul> <h2> 🛠️ Built With </h2> <p>⚙️ <strong>Next.js</strong> – Full-stack React framework<br><br> 🎙 <strong>Murf API</strong> – Voiceovers &amp; TTS<br><br> 🧠 <strong>Deepgram API</strong> – Real-time speech-to-text<br><br> 🗣 <strong>GROQ AI</strong> – AI-based context-aware conversation<br><br> 💅 <strong>Tailwind CSS</strong> – Clean, responsive UI<br><br> 🔁 <strong>WebSocket</strong> – Live audio feedback<br><br> 🍞 <strong>React Hot Toast</strong> – UX notifications<br><br> 🟦 <strong>Node.js + Express + TypeScript</strong> – Backend API and real-time processing</p> <h2> 🔭 Future Expansion </h2> <p>📱 Mobile App (React Native)</p> <p>🧑‍🏫 School LMS Integration</p> <p>🧠 AI coach for adaptive difficulty</p> <p>🎮 Gamified Progress Tracker + Badges</p> <p>👥 Peer Practice / Voice Chat Rooms</p> <h2> 👥 Team &amp; Credits </h2> <p>Built with passion for the <strong>Murf AI Coding Challenge 2</strong> 🧠🎙</p> <p>Developed by:</p> <ul> <li>👤 <a href="https://dev.to/prakhar2509">@prakhar2509 </a> – Backend &amp; WebSocket Integration </li> <li>👤 <a href="//https://dev.to/kanishksogani">@kanishksogani </a> – Frontend &amp; UI/UX Design</li> </ul> <h2> 🙏 Special Thanks </h2> <p>Huge thanks to <strong>Murf AI</strong> for empowering developers with incredible voice technology and for creating a platform that encourages innovation at the intersection of audio, accessibility, and AI.</p> <p>Let’s make language learning human, immersive, and global 🌍🎧💬</p> ai api webdev typescript