Podcast Generator

Generates podcast-style audio that plays directly in the browser. Zero cost, no API keys needed.

Workflow Decision Tree

User provides formatted dialogue

→ Use existing dialogue as-is if quality is good → Refine structure only if flow needs improvement

User provides article, list, or text content

→ Create dialogue from content (see "Dialogue Creation Process")

User provides topic only

→ Request source material before proceeding

Dialogue Creation Process

Follow this two-phase workflow when creating podcast dialogue from content:

Phase 1: Analyze Source Content

1. •Read source material completely
2. •Detect language from content (en, de, fr, es, it, etc.)
3. •Identify key information: facts, dates, names, numbers, details
4. •Organize by theme: chronology, category, or logical grouping

Phase 2: Create Dialogue

1. •

   Structure conversation:

   • •Host (Speaker 1): ~20% - questions and transitions
   • •Expert (Speaker 2): ~80% - factual responses from source
   • •Length: as many exchanges as needed to cover all content (typically 10-50+ lines)
2. •

   Apply TTS formatting: Read reference/tts-formatting.md for complete rules

3. •

   Generate JSX file from template (see "Implementation Steps")

Information Accuracy

Convert text to audio. Use only source material facts.

Expert responses:

• •Use only names, dates, numbers, details explicitly stated in source
• •Never invent examples, context, or explanations not in source
• •Never add interpretations, opinions, or evaluations
• •Never explain WHY something happened unless source explains it

Host phrases:

• •Use neutral transitions: "I see", "Tell me more", "Can you elaborate?"
• •Reference previous statements: "You mentioned X - how does that connect to Y?" (when source shows connection)
• •Never add new facts, context, or interpretations

Dialogue Format Guidelines

Host (Speaker 1) - ~20% of content

• •Introduce topic with opening question
• •Ask transition questions between topics
• •Reference Expert's previous statements: "You mentioned X - can you elaborate?"
• •Use conversational acknowledgments: "I see", "Tell me more"
• •Never introduce facts not in source

Expert (Speaker 2) - ~80% of content

• •Provide comprehensive factual responses from source material
• •Include specific details: names, dates, numbers, locations
• •Organize information logically by theme, chronology, or category
• •Structure facts narratively using only source material
• •Never repeat information already stated
• •Never add context or examples not in source

Natural Conversation Techniques

Use these patterns without adding information:

• •Vary question styles: "What happened next?" / "Can you explain that further?" / "Tell me about..."
• •Ask follow-up questions based on Expert's previous response
• •Expert elaborates when source provides multiple details about a topic
• •Clear transitions between sections: "Moving to the next category...", "In the European context..."

Avoid

• •Personal opinions: "I think...", "That's crazy..."
• •Value judgments: "amazing", "fascinating", "interesting"
• •Humor, irony, jokes
• •Rapid back-and-forth after every sentence

Implementation Steps

When user requests a podcast:

1. •Analyze source content and create dialogue following format above
2. •Detect language from content
3. •Read template from assets/podcast-template.jsx
4. •Replace values in template:
   • •PODCAST_SCRIPT - your generated dialogue
   • •PODCAST_TITLE - descriptive title from content
   • •PODCAST_LANGUAGE - detected language code
5. •Save as JSX file - Use the Write tool to save the modified template as a .jsx file. The file will render as an interactive podcast player.
6. •Recommend Microsoft Edge browser for best voice quality (250+ Natural voices vs Chrome's 19)

Technical Reference

Script Format

<speaker1>Host's question or statement.
<speaker2>Expert's response with factual information.

Voice Configuration (automatic)

• •Speaker 1 (Host): Pitch 1.05, Rate 0.95
• •Speaker 2 (Expert): Pitch 0.88, Rate 0.93

Platform-Aware Voice Selection

Platform detection:

• •Automatically detects iOS, Android, Desktop Edge, or Desktop
• •Selects best available voices based on platform

Desktop Edge:

• •Priority: Microsoft Neural/Natural voices (Katja, Conrad, Aria, Guy, etc.)
• •250+ high-quality voices available

Desktop Chrome:

• •Priority: Google voices (Google UK English Female, Google Deutsch, etc.)
• •~19 voices available (lower quality than Edge)
• •Fallback: local system voices

iOS (Safari/Mobile):

• •Priority: Native Siri voices (Samantha, Anna, Daniel, etc.)
• •Best quality on iOS devices

Android (Chrome/Mobile):

• •Priority: Google TTS voices (Google Deutsch, Google UK English Female, etc.)
• •Wavenet voices preferred when available

Voice assignment:

• •Automatically assigns different voices to Speaker 1 and Speaker 2
• •Uses modulo distribution for 3+ speakers
• •Ensures distinct voices even with limited availability

Player Features

• •Play/Pause/Resume with full playback control
• •Stop to reset to beginning
• •Click any transcript line to resume from there
• •Progress bar shows current position
• •Auto-scroll follows current line

Technical Constraints

• •Keep sentences under 14 seconds (Chrome limitation)
• •350ms pause between speakers
• •Microsoft Edge browser provides 250+ high-quality Natural voices (best option)
• •Chrome provides only 19 lower-quality voices with utterance bugs
• •Firefox has very limited voice support

Quality Requirements

• •Factual Accuracy: Expert responses use only source facts
• •Natural Flow: Avoid rapid back-and-forth, value judgments
• •TTS Compliance: All text must play without pronunciation errors
• •Zero Hallucination: No invented examples or context
• •Complete Coverage: Include all important facts from source
• •No Duplicates: Each fact appears exactly once