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.KeywordsOpenAI FMGPT-4o mini TTSVoice CustomizationText-to-SpeechNatural Language Voice EditingNotebook LMMind MapsVisual LearningInformation HierarchyVoice DescriptionsAPI IntegrationAgent SDKCustomer Service VoicesBrand VoiceEducational AITopic VisualizationLearning ToolsContent OrganizationTranscription ModelsKey TakeawaysOpenAI's Voice TechnologyGPT-4o mini TTS model allows voice customization via text promptsVoice descriptions include tone, delivery, pronunciation, and phrasingAvailable through OpenAI's API with Agent SDK supportOpenAI FM provides a public demonstration interfaceCustomizable parameters include emotional tone and speech patternCompanion GPT-4o transcribe model for speech-to-text capabilitiesVarious preset voice "vibes" like auctioneer, mad scientist, and chill surferParticularly useful for customer-facing voice experiencesNotebookLM's Mind Map FeatureNew visualization option for organizing complex topicsCreates hierarchical diagrams showing relationships between conceptsAvailable in the lower right corner of the Notebook LM interfaceWorks with existing sources like PDFs, websites, and videosBreaks down overwhelming subjects into manageable componentsEach node can be expanded to reveal subtopicsRolling out to free tier users over the next few daysComplements existing features like audio overviews and briefing documentsDemo HightlightsTested various preset voices including auctioneer, chill surfer, and mad scientistCreated custom voice description attempting to mimic Bugs BunnyDemonstrated realistic speech patterns and emotional deliveryGenerated JavaScript mind map from full-stack development PDFsShowed hierarchical organization of related programming conceptsIllustrated intuitive visualization of complex technical topicsPractical ApplicationsCreating distinctive brand voices for customer serviceDeveloping consistent voice experiences across marketing channelsDifferentiating products through unique voice personalitiesBreaking down complex marketing concepts visuallyOrganizing learning paths for skill developmentVisualizing related topics in content planningUnderstanding hierarchical relationships in campaign strategiesEnhancing comprehension of technical marketing toolsLooking ForwardIntegration of voice customization into existing marketing toolsPotential for brand-specific voice experiences in customer interactionsApplication of mind mapping to other marketing planning activitiesExpansion of educational AI tools for marketing skill developmentCombining voice and visualization features for enhanced learningEvolution of natural language control for AI-generated contentGreater accessibility of previously developer-focused toolsLinkshttps://www.openai.fm/https://notebooklm.google.com/https://www.therundown.ai/p/claude-finally-searches-the-webhttps://x.com/tokumin/status/1902251588925915429

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