In this Demo Day episode, we explore two recent AI feature releases: OpenAI’s GPT-4o mini TTS model and Google’s Mind Map feature for Notebook LM. The OpenAI text-to-speech model allows customization of voice characteristics through simple text prompts and natural language descriptions, demonstrated through examples ranging from “auctioneer” to “chill surfer” to a custom Bugs Bunny-inspired voice. We also examine Notebook LM’s new Mind Map visualization feature, which organizes complex topics into visual hierarchies for easier learning and comprehension. Both tools represent significant advancements in their respective domains – voice generation and educational AI – with particular applications for marketers looking to create distinctive brand experiences or learn complex topics efficiently.
Keywords
- OpenAI FM
- GPT-4o mini TTS
- Voice Customization
- Text-to-Speech
- Natural Language Voice Editing
- Notebook LM
- Mind Maps
- Visual Learning
- Information Hierarchy
- Voice Descriptions
- API Integration
- Agent SDK
- Customer Service Voices
- Brand Voice
- Educational AI
- Topic Visualization
- Learning Tools
- Content Organization
- Transcription Models
Key Takeaways
OpenAI’s Voice Technology
- GPT-4o mini TTS model allows voice customization via text prompts
- Voice descriptions include tone, delivery, pronunciation, and phrasing
- Available through OpenAI’s API with Agent SDK support
- OpenAI FM provides a public demonstration interface
- Customizable parameters include emotional tone and speech pattern
- Companion GPT-4o transcribe model for speech-to-text capabilities
- Various preset voice “vibes” like auctioneer, mad scientist, and chill surfer
- Particularly useful for customer-facing voice experiences
NotebookLM’s Mind Map Feature
- New visualization option for organizing complex topics
- Creates hierarchical diagrams showing relationships between concepts
- Available in the lower right corner of the Notebook LM interface
- Works with existing sources like PDFs, websites, and videos
- Breaks down overwhelming subjects into manageable components
- Each node can be expanded to reveal subtopics
- Rolling out to free tier users over the next few days
- Complements existing features like audio overviews and briefing documents
Demo Hightlights
- Tested various preset voices including auctioneer, chill surfer, and mad scientist
- Created custom voice description attempting to mimic Bugs Bunny
- Demonstrated realistic speech patterns and emotional delivery
- Generated JavaScript mind map from full-stack development PDFs
- Showed hierarchical organization of related programming concepts
- Illustrated intuitive visualization of complex technical topics
Practical Applications
- Creating distinctive brand voices for customer service
- Developing consistent voice experiences across marketing channels
- Differentiating products through unique voice personalities
- Breaking down complex marketing concepts visually
- Organizing learning paths for skill development
- Visualizing related topics in content planning
- Understanding hierarchical relationships in campaign strategies
- Enhancing comprehension of technical marketing tools
Looking Forward
- Integration of voice customization into existing marketing tools
- Potential for brand-specific voice experiences in customer interactions
- Application of mind mapping to other marketing planning activities
- Expansion of educational AI tools for marketing skill development
- Combining voice and visualization features for enhanced learning
- Evolution of natural language control for AI-generated content
- Greater accessibility of previously developer-focused tools
Links
https://notebooklm.google.com/
https://www.therundown.ai/p/claude-finally-searches-the-web
https://x.com/tokumin/status/1902251588925915429
