🚀 Create subtitles from a video with FFmpeg and OpenAI

You can find the article relative to this repository on Medium

📦 Prerequisites

• NodeJS version >= 20 - 🔗 https://nodejs.dev/en/learn/how-to-install-nodejs/
• FFmpeg - 🔗 https://www.partitionwizard.com/partitionmanager/how-to-install-ffmpeg.html
• Something for writing a piece of code (Visual Studio Code, Fleet…)
• API Key from OpenAI  -  🔗 https://openai.com/

Great, it's time to add $API_KEY. Rename .env-example or create a .env file and insert your OpenAI API Key.

🔥 Getting Started

Create the audio file

ffmpeg -i video.mp4 -vn -acodec libmp3lame -q:a 5 audio.mp3

FFmpeg is pretty nice, it should give you the audio of the video. audio.mp3 should appear in the tall grass.

Install dependencies

First all, install your dependencies.

npm install

Launch the rocket

Your dependencies are downloaded, you can launch the script in order to generate subtitles.

npm run start

If all are good, you may have a track.vtt file generated at the root.

🎉 Congratulations!

You can take a look the result in your favorite browser and open the index.html file.