LangFlip: AI-Powered Video Translation and Lip-Syncing

LangFlip is an advanced cloud-based application that leverages artificial intelligence to translate videos into multiple languages while maintaining lip synchronization. This project combines various technologies to provide a seamless video translation experience.

Try It Out

You can test the LangFlip application at:

https://app.langflip.com

Experience the power of AI-driven video translation and lip-syncing firsthand!

Features

Video translation to multiple target languages
AI-powered lip-syncing for natural-looking results
Cloud-based processing for scalability
Integration with various AI services (Google Vertex AI, ElevenLabs, etc.)
Automatic caption generation and translation

Technology Stack

Python
Firebase Functions
Google Cloud Storage
Google Vertex AI
ElevenLabs API
MoviePy
PyDub
FFmpeg

Key Components

Video Processing: Handles video and audio manipulation.
Translation: Utilizes Google Vertex AI for high-quality translations.
Text-to-Speech: Generates translated audio using ElevenLabs API.
Lip-Syncing: Applies advanced algorithms to match lip movements with translated audio.

Getting Started

Clone the repository
Set up Firebase project and obtain credentials
Install dependencies:
```
pip install -r requirements.txt
```
Set up environment variables for API keys and project configurations
Deploy Firebase Functions:
```
firebase deploy --only functions
```

Usage

The main functionality is exposed through Firebase Functions. The primary function startLipSync initiates the translation and lip-syncing process: