emerald-story
Manoj PaswanAI Cartoon Video Generator App – Final Developer Specification 🧠 App Overview Build a fully automated AI-powered mobile + web application that converts user कहानी (story text) into a complete cartoon video including: Script breakdown Scene generation Cartoon AI images Multi-character voice-over (male/female) Background music Auto video editing 👉 User को सिर्फ story डालनी है — बाकी सब system अपने आप करेगा ⚙️ Core Features 1. 📝 Story Input System User story paste / type कर सके Language selection: Hindi English Video duration selection: 8 मिनट 15 मिनट 20 मिनट 2. 🤖 AI Script Analyzer Story को automatically scenes में divide करना हर scene के लिए: Short script Dialogue Emotion detection: Happy Sad Horror Suspense 3. 🎨 AI Cartoon Image Generator हर scene के लिए auto cartoon image generate करना Styles: Kids cartoon Anime Realistic cartoon 🔥 “Lalchi (greedy) cartoon style” (funny exaggerated expressions) 🔁 Character Consistency: Same character हर scene में same दिखे (face + dress + style) 4. 🎙️ Multi-Character AI Voice Over System (IMPORTANT) 👥 Character Detection (Auto AI) Story से: Characters का नाम detect करे Gender detect करे (Male / Female / Unknown) 🎭 Dialogue Separation Narration और dialogue अलग करे Example: Narrator: Ek jungle tha Rahul: Mujhe darr lag raha hai Priya: Daro mat 🎙️ Voice Assignment Role Voice Type Narrator Neutral storytelling Male Male voice Female Female voice 🔊 Voice Variety Male Voices: Deep Young Angry Female Voices: Soft Emotional Child 😊 Emotion-Based Voice AI detect करेगा: Happy Sad Angry Horror 👉 Voice automatically adjust: Pitch Speed Tone 🔄 Dialogue-wise Audio हर dialogue का अलग audio file बने फिर sequence में merge हो 🎬 Lip Sync / Scene Sync जिस character की voice हो रही है: उसी character पर focus हो Voice + scene perfectly sync ⚙️ Manual Override User manually voice change कर सके: Rahul → Deep / Funny Priya → Cute / Strong 🎬 5. Auto Video Editor Automatically: Images sequence में लगाना Voice sync करना Background music add करना Sound effects add करना Transitions: Fade Zoom Glitch 🎵 6. Background Music System Category-based music: Horror Comedy Emotional Kids 📱 7. Export & Share Export: 720p 1080p Direct share: YouTube Facebook WhatsApp 🧩 Advanced Features 🔥 Auto Hook Generator First 5 seconds के लिए viral hook generate करे 🎭 Character Builder User खुद character बना सके: Face Clothes Voice 🌍 Multi-language Support Hindi ↔ English translate 😂 Lalchi Cartoon Mode (NEW FEATURE) Funny exaggerated greedy expressions Comedy storytelling style Cartoon reactions (overacting style) ♾️ Unlimited Correction System User unlimited edit कर सके: Script change Voice change Scene regenerate 👉 बिना limit के correction 🛠️ Tech Stack Frontend: Flutter (Mobile) React (Web) Backend: Node.js / Python (FastAPI) AI APIs: Text: OpenAI GPT Image: Stable Diffusion / DALL·E Voice: ElevenLabs / Google TTS Video Processing: FFmpeg 🔁 Complete Workflow User story input AI scene breakdown Character detection Image generation Voice generation (multi-character) Emotion detection Audio merge Video rendering (FFmpeg) Final export 🎯 UI Flow Home Screen Enter Story Select Language + Duration Generate Video Preview Edit (Unlimited Correction) Download / Share
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Transform Your Stories Into Animated Videos
Paste your story, choose a style, and watch emerald-story bring it to life. Automatic scene detection, multi-voice characters, and cinematic rendering — in minutes.
Paste Your Story
Write or paste your story below. Our AI will analyze it, detect characters, emotions, and scenes — then transform it into a stunning cartoon video.
Pro tip: Include character names, dialogues (e.g., "Raju said, 'I will never give up!'"), and emotional cues (happy, angry, scared). Our AI uses these to assign voices, generate expressions, and pick the perfect background music for each scene.
Choose Your Story Language
Language shapes how your characters speak, emote, and connect with viewers. Select the language that best matches your story's cultural heart.
Why language matters: Our AI assigns character voices, emotional tone, and dialogue delivery based on your chosen language. Hindi unlocks authentic regional voice packs and Hinglish support, while English enables global voice profiles and multi-accent narration.
How Long Should Your Story Be?
Choose a duration that matches the depth of your story. Longer videos allow richer character development and more scenes — but every great story finds its right length.
Quick Story
Snappy, punchy, perfect for social sharing
Standard Film
Rich narrative with character depth and subplots
Epic Edition
Cinematic experience with complex storylines
Why Duration Matters
- Longer videos generate more scenes, allowing deeper character arcs and emotional storytelling with voice modulation.
- Shorter videos prioritize impact — ideal for YouTube Shorts, Instagram Reels, and WhatsApp shares with viral hooks in the first 5 seconds.
- The AI automatically adjusts scene pacing, dialogue density, and background music tempo to match your selected duration.
Choose Your Cartoon Style
Each style transforms your story into a unique visual experience. Click a style below to select it for your video.
Kids Cartoon
✓ SelectedBright, cheerful visuals with rounded characters and vibrant colors. Perfect for family stories and children's tales.
Tap to select →Anime
✓ SelectedExpressive eyes, dynamic action poses, and cinematic paneling. Ideal for adventure, romance, and dramatic narratives.
Tap to select →Realistic Cartoon
✓ SelectedDetailed proportions with stylized textures. Blends lifelike detail with cartoon charm for mature storytelling.
Tap to select →Lalchi Cartoon★ Exclusive
✓ SelectedExaggerated expressions, over-the-top reactions, and comedic chaos. Our signature mode for viral humour and satire.
Tap to select →
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