Audio Transcription and Summary with OpenAI & Google Drive

This n8n workflow automates the entire audio-to-report pipeline. It monitors a Google Drive folder for new audio recordings, transcribes them using OpenAI’s Whisper model, summarizes the content into structured reports, and saves both JSON and Markdown versions back to Google Drive. It can optionally notify users via Gmail and Telegram with links to the generated reports, making it a perfect "human-in-the-loop" transcription and reporting solution.

Key Features

• Google Drive Integration
  Automatically detects new audio files in a specified Google Drive folder.
• Human Approval (Optional)
  Sends an approval email before proceeding with transcription, allowing for human verification when needed.
• OpenAI Audio Transcription
  Uses OpenAI to transcribe audio files (.m4a supported out of the box).
• AI-Powered Summarization
  Summarizes transcripts into structured JSON with sections like main points, action items, stories, and references.
• Markdown Conversion
  Converts JSON summaries into clean Markdown documents for easier sharing or publishing.
• Automated File Management
  Saves raw transcripts, structured JSON, and Markdown summaries back into Google Drive with timestamped filenames.
• Multi-Channel Notifications
  Optionally sends Gmail and Telegram notifications with direct links to the generated files.
• Customizable Filters
  Includes filters for audio formats and limit controls to tailor to your workflow needs.