📚 Technology Stack
PyTorch, Next.js 15, AWS (S3, EC2), Inngest, FastAPI, React, Tailwind CSS, Docker, TypeScript, PostgreSQL, Redis, Prisma, Auth.js, WebAssembly
📃 Overview
Duration: 6/2024 - now (oncoming 🚀)
This project is a sophisticated clone of ElevenLabs' voice AI platform, featuring text-to-speech, voice conversion, and audio generation capabilities. The system self-hosts three state-of-the-art AI models that can be fine-tuned to specific voices, offering users a powerful toolkit for audio content creation. The architecture combines a high-performance Python/PyTorch AI backend with a modern Next.js frontend, all orchestrated through containerized services and efficient queue management.
🧠 AI Models Implementation
- StyleTTS2: Implementation of a state-of-the-art text-to-speech model capable of generating natural-sounding speech with control over style, prosody, and emotion
- Seed-VC: Voice conversion model that transforms one person's voice into another while preserving speech content and enhancing naturalness
- Make-An-Audio: Generative audio model for creating realistic environmental sounds, music, and effects from textual descriptions
- Fine-tuning Pipeline: Custom training workflow for adapting models to new voices using minimal sample data
- Inference Optimization: ONNX runtime conversion and quantization techniques for faster generation
- Voice Cloning: System for creating digital voice replicas from short audio samples
- Emotion Control: Parameters for adjusting emotional tone and intensity in generated speech
🏗️ System Architecture
- Microservices Design: Containerized AI models with independent scaling capabilities
- Asynchronous Processing: Queue-based architecture using Inngest for handling compute-intensive tasks
- FastAPI Backend: High-performance API endpoints for model inference with automatic documentation
- Next.js Frontend: Server-side rendering and React Server Components for optimal performance
- S3 Integration: Scalable storage solution for audio files with secure access controls
- Database Layer: PostgreSQL for structured data with Prisma ORM for type-safe queries
- Caching Strategy: Redis implementation for frequently accessed data and inference results
- Authentication Flow: Secure user management with JWT and Auth.js integration
- Credit System: Database-backed usage tracking and quota management
🎧 Audio Processing Features
- Real-time Preview: Low-latency audio previews before final generation
- Batch Processing: Support for processing multiple text inputs or audio files simultaneously
- Audio Editing: Waveform visualization with trimming, splitting, and combining capabilities
- Format Conversion: Support for multiple audio formats (WAV, MP3, OGG, FLAC)
- Voice Library: Management system for saved and favorited voices
- Audio Enhancement: Post-processing filters for noise reduction and quality improvement
- Pronunciation Controls: Custom dictionary and phoneme adjustment for accurate speech
- Speech Parameters: Adjustable settings for pitch, speed, pauses, and emphasis
💻 Technical Implementation
- Docker Containerization: Isolated environments for each AI model with resource controls
- GPU Acceleration: CUDA optimization for PyTorch models with fallback to CPU
- API Versioning: Structured API evolution with backward compatibility
- Streaming Response: Chunked audio delivery for improved user experience during generation
- WebSocket Integration: Real-time progress updates during processing
- Background Workers: Dedicated processing threads for handling intensive computations
- Error Handling: Comprehensive error tracking and graceful degradation
- Monitoring: Prometheus metrics for system performance and model behavior
👤 User Experience & Interface
- Intuitive Dashboard: Clean, responsive interface for all audio generation tasks
- Voice Management: Tools for creating, editing, and organizing voice profiles
- Project Organization: Folder structure for managing related audio generations
- History & Favorites: Access to past generations with search and filtering
- Credit Usage Visibility: Clear display of resource consumption and limits
- Audio Playback: In-browser player with visualization and controls
- Responsive Design: Optimized experience across desktop and mobile devices
- Theme Support: Light and dark mode with customizable accent colors
🛡️ Security & Compliance
- Data Encryption: End-to-end encryption for user audio data
- Access Controls: Role-based permissions for team environments
- Usage Limits: Rate limiting and quota enforcement to prevent abuse
- Content Moderation: Filters for preventing misuse of voice generation
- Privacy Settings: User controls for data retention and sharing
- Audit Logging: Comprehensive tracking of system actions and access
🔮 Future Development
- Integration with content creation platforms (YouTube, podcast hosts)
- Advanced voice editing with multi-track mixing capabilities
- Real-time voice conversion for live applications
- Additional language support beyond English
- Mobile application with offline processing capabilities
- API marketplace for developers to integrate voice capabilities
This project demonstrates advanced skills in AI model deployment, full-stack development, and cloud infrastructure, creating a powerful alternative to commercial text-to-speech platforms with enhanced customization capabilities.