Test the Boundaries Safely
Every text-to-speech system has limits. Understanding them helps you plan
for accessible council content.
Safe to explore: These challenges won't break anything.
You can always try again with different inputs.
Challenges completed:
0 of 3
Boundary challenges
4 minutes
What you'll learn:
Polly has character limits; long content needs chunking
The Challenge
Try to synthesize a very long document (3000+ characters)
Try this:
Paste an entire council policy page or meeting minutes excerpt
Expected Behavior
Content is automatically chunked into segments; may take longer to process
Business Implication
Long documents work but need planning for seamless playback
How to recover Content is processed in chunks. Listen through to verify no content is lost at chunk boundaries.
Mark as complete
3 minutes
What you'll learn:
British English voices handle most content but struggle with foreign words
The Challenge
Include Welsh, French, or other non-English words in your text
Try this:
The meeting was held at Llanfairpwllgwyngyll community centre
Expected Behavior
British voices approximate foreign words; may sound unnatural
Business Implication
Bilingual councils may need Welsh voice option or phoneme hints
How to recover Use SSML phoneme tags to guide pronunciation of specific words.
Mark as complete
3 minutes
What you'll learn:
Numbers, dates, and special characters need consistent formatting
The Challenge
Include various number formats: dates, currencies, phone numbers
Try this:
Call 01onal 123 456 before 31/12/2025. Fees are £150.00 per application.
Expected Behavior
Most formats handled well; some may need SSML say-as hints
Business Implication
Consistent formatting in source content ensures reliable speech
How to recover Use SSML tags: 31/12/2025
Mark as complete
What's Next?
Generate Evidence Pack
Create a committee-ready PDF documenting your exploration.
Create Evidence Pack