Creating Subtitles for Videos Using Assembly AI

Overview

• AI can learn to use digital tools for natural language processing tasks with few or zero-shot settings.
• Assembly AI allows you to quickly add subtitles to videos using a few lines of code.

Getting Started

1. Install the Assembly AI SDK
   • Open terminal and execute: pip install Assembly AI
2. Obtain an API Key
   • Sign up at assemblyai.com to get a free API key.

Writing the Code

• In your Python file, import Assembly AI: import Assembly AI as AAI
• Set your Assembly AI API key: AAI.api_key = 'your_api_key'
• Create a transcription job:
  • Create a transcriber object via Assembly AI and pass the video/audio file to it.
  • Example video: 4K video, 1.18 GB.
  • For faster upload, extract audio using QuickTime Player (File > Export as Audio Only) to get an 8.7 MB file.

Transcription and Exporting Subtitles

• Once transcription is ready, export subtitles: transcriber.export_subtitles(format='srt') # or 'vtt'
• Optionally, specify max characters per caption (default is between 80-100).
• Open a file to write the subtitles: with open('subtitles.srt', 'w') as file: file.write(transcribed_subtitles)

Final Steps

• Check the generated subtitles file:
  • Can be opened with any text editor.
  • Timed subtitles will be accepted by platforms like YouTube and VLC player.

Conclusion

• Subtitles can be generated with just a few lines of code.
• For further inquiries or to learn more, refer to the Assembly AI documentation or SDK documentation on GitHub.

Additional Resources

• Links to documentation will be provided in the description below.