🎧 Convert Unread Newsletters into Conversational AI Podcasts
Turn email overload into audio insights — automatically.
This workflow transforms unread newsletters sitting in your inbox into engaging, human-like audio conversations between two AI voices. It’s perfect for listening during your commute, workout, or while multitasking.
Inspired by Google's NotebookLM, this automation brings long-form content to life by summarizing dense text into a natural dialogue using OpenAI and generating high-quality voice narration with ElevenLabs. The result? A dynamic audio file sent right back to your inbox — hands-free, screen-free, and stress-free.
💡 What this workflow does
- ✅ Connects to your Gmail inbox to fetch unread newsletters
- 🤖 Uses GPT-4o Mini to summarize and rephrase content as a conversation
- 🗣️ Sends the dialogue to ElevenLabs to generate voice clips (
voice1 + voice2)
- 🔁 Merges all audio segments into a single podcast-like MP3 using FFmpeg
- 📬 Emails the final audio back to you for easy listening
🛠️ What you'll need
- A Gmail account with IMAP enabled
- An OpenAI API key (GPT-4o Mini recommended for cost/performance)
- An ElevenLabs API key + selected voice IDs
- A self-hosted or local n8n instance with FFmpeg installed
- Basic knowledge of binary data and audio handling in n8n
✨ Use cases
- Convert long newsletters into hands-free listening experiences
- Repurpose Substack or Beehiiv content for podcast-like distribution
- Build an internal voice dashboard for teams who prefer audio updates
🙌 Want to go further?
This workflow is modular and extensible. You can add steps to:
- Upload the final audio to Spotify, SoundCloud, or Telegram
- Publish to a private podcast RSS feed
- Create a daily audio digest from multiple newsletters
📬 Contact & Feedback
Need help customizing it? Have ideas or feedback?
Feel free to reach out:
📩 [email protected]
If you're building something more advanced with audio + AI, like automated podcast publishing to Spotify — let me know and I’ll figure out how I can help you!
