Convert news headlines to audio newsletters with Claude, GPT-4o & OpenAI TTS

Generate daily audio newsletters from news headlines with AI

Who's it for

Perfect for content creators, podcasters, news enthusiasts, and busy professionals who want to create automated audio news content or stay informed through personalized audio briefings. Ideal for social media managers, newsletter creators, and anyone building audio-first content experiences.

How it works

This workflow creates a fully automated news-to-audio pipeline:

1. Schedule trigger fetches the latest news headlines from NewsAPI daily
2. AI processing rewrites each article into newsletter-style content using Claude
3. Content aggregation combines all processed articles into a cohesive newsletter
4. Script generation transforms the newsletter into a 2-minute audio-ready script
5. Text-to-speech converts the script into high-quality audio using OpenAI's voice models
6. Email delivery sends the audio newsletter as an attachment to subscribers

The workflow runs automatically on your chosen schedule, delivering fresh audio content without any manual intervention.

How to set up

Requirements

• NewsAPI account with API key (free tier available)
• OpenRouter API access for Claude model
• OpenAI API account for text-to-speech functionality
• Gmail account with OAuth2 access for email delivery
• Basic understanding of audio file handling (optional)

Step-by-step setup

1. Set Your Schedule trigger

• Configure the Schedule Trigger for your preferred timing (daily at 7 AM recommended)
• Consider your audience timezone and optimal delivery times
• Set up monitoring to ensure consistent execution

2. Configure News Source

• Sign up for NewsAPI at newsapi.org (free tier includes 100 requests/day)
• Replace YOUR_NEWSAPI_KEY with your actual API key in the HTTP Request node
• Customize the news query parameters (country, category, sources) to match your audience interests
• Test the API endpoint to ensure it returns expected data

3. Extract Individual Articles(Split Out)

• Takes the articles array from NewsAPI response
• Creates separate items for each news article
• Enables individual processing of each story
• Prepares data for AI content generation

4. Set Up AI Model Credentials

• Create an OpenRouter account for Claude access
• Add your OpenRouter API credentials in n8n
• Alternatively, replace with OpenAI GPT-4 if you prefer (update the model node accordingly)
• Configure rate limits and usage monitoring

5. Combine Newsletter Content" (Aggregate)

• Collects output from all processed articles
• Renames field to news for easy reference
• Prepares combined content for script generation
• Ensures no articles are lost in processing

6. Audio Script Generation

• GPT-4 creates 2-minute audio-ready script from newsletter content.
• Creates script with "Max" presenter persona

Script features:

• 2-minute target duration
• Audio-friendly text (no special characters)
• Natural speaking flow and transitions
• Engaging introduction and conclusion

7. Configure OpenAI Text-to-Speech

• Add your OpenAI API credentials in n8n
• Choose your preferred voice model (options: alloy, echo, fable, onyx, nova, shimmer)
• Set audio quality preferences (standard vs HD)
• Test voice output with sample text

8. Customize Email Delivery

• Add your Gmail OAuth2 credentials
• Replace [email protected] with your actual recipient email
• Update the sender name and business information in email template
• Configure attachment settings for audio files

9. Test the Complete Pipeline

• Run a manual execution to test all components
• Verify news data is properly fetched and processed
• Check audio quality and duration
• Confirm email delivery with audio attachment

How to customize the workflow

Advanced News Filtering

• Custom sources: Replace NewsAPI with RSS feeds from specific publications
• Topic filtering: Add keyword filtering to focus on specific industries or topics
• Multi-country support: Fetch news from multiple regions and merge content
• Sentiment analysis: Filter out negative news or categorize by sentiment
• Trending topics: Integrate with social media APIs to include trending discussions

AI Content Enhancement

• Voice persona: Customize the AI prompt to create different presenter personalities (professional, casual, expert)
• Length control: Adjust script length for different formats (1-minute updates, 5-minute deep dives)
• Multi-language support: Generate newsletters in different languages based on subscriber preferences
• Fact-checking: Add verification steps to ensure accuracy of AI-generated content
• Source attribution: Include proper citations and links to original articles

Audio Production Features

• Voice variety: Rotate between different OpenAI voices for engaging content
• Background music: Add intro/outro music using audio editing APIs
• Speed control: Adjust playback speed based on content type
• Chapter markers: Add timestamps for different news segments
• Quality optimization: Implement audio normalization and enhancement

Distribution Enhancements

• Multi-channel delivery: Send to Slack, Discord, or team communication platforms
• Podcast publishing: Automatically upload to podcast platforms via RSS
• Social media: Post audio clips to Twitter, LinkedIn, or Instagram
• Website integration: Embed audio player on your website automatically
• Mobile app push: Send notifications to mobile apps with audio links

Subscriber Management

• Mailchimp integration: Build and manage subscriber lists automatically
• Preference tracking: Allow subscribers to choose news categories or frequency
• Analytics tracking: Monitor open rates, listening duration, and engagement
• A/B testing: Test different voice styles, content lengths, or delivery times
• Segmentation: Send different newsletters to different subscriber segments

Content Workflow Customization

• Editorial review: Add approval steps before content distribution
• Content calendar: Integrate with planning tools for scheduled content themes
• Collaborative editing: Include team review processes for content quality
• Version control: Maintain archives of previous newsletters for reference
• Performance metrics: Track which content types perform best

Webhook Integration Examples

Website Integration

// Add this to your website for manual newsletter requests
fetch('/webhook/trigger-newsletter', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    subscriber_email: '[email protected]',
    topics: ['technology', 'business'],
    urgency: 'normal'
  })
});

Slack Command Integration

• Create slash commands to trigger newsletter generation on demand
• Allow team members to request specific topic newsletters
• Integrate with Slack workflows for automated team briefings

Mobile App Integration

• Use webhooks to trigger newsletters from mobile app interactions
• Create push notification systems for breaking news alerts
• Build in-app audio players for seamless listening experience

Troubleshooting

Common Issues and Solutions

NewsAPI quota exceeded:

• Monitor your daily API usage in NewsAPI dashboard
• Implement caching to reduce redundant requests
• Consider upgrading to paid plan for higher limits
• Add fallback RSS feeds when API limits are reached

AI model rate limiting:

• Implement exponential backoff for API requests
• Monitor token usage across Claude and OpenAI services
• Add queue systems for high-volume processing
• Consider switching to different models during peak times

Audio generation failures:

• Check OpenAI text-to-speech quotas and billing
• Validate text input for special characters that might cause issues
• Implement retry logic for failed audio generation
• Add fallback to text-only newsletters when audio fails

Email delivery problems:

• Verify Gmail API quotas and sending limits
• Check audio file size limits (Gmail has 25MB attachment limit)
• Implement compression for large audio files
• Consider cloud storage links instead of direct attachments

Content quality issues:

• Fine-tune AI prompts for more consistent output
• Add content validation steps to check for accuracy
• Implement editorial guidelines in AI instructions
• Create feedback loops to improve content over time

Performance Optimization

Workflow efficiency:

• Process news articles in parallel where possible
• Implement smart caching for repeated content
• Optimize API calls to reduce latency
• Monitor execution times and identify bottlenecks

Cost management:

• Track API costs across all services (NewsAPI, OpenRouter, OpenAI)
• Implement budget alerts and automatic shutoffs
• Optimize content length to reduce text-to-speech costs
• Consider batch processing during off-peak hours

Scalability preparation:

• Design for multiple subscriber support
• Plan for increased news volume during major events
• Prepare backup systems for service outages
• Document processes for team handoffs

Security and Compliance

API key protection:

• Never expose API keys in workflow exports
• Use n8n's credential management exclusively
• Implement key rotation policies
• Monitor for unauthorized API usage

Content compliance:

• Review AI-generated content for accuracy and bias
• Implement content filtering for inappropriate material
• Ensure proper attribution to original news sources
• Maintain editorial standards and fact-checking processes