Spelling TTS POC

Compare spelling pronunciation across all 4 TTS engines with genuine voice output.

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1. Select TTS model

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Choose any model and click Listen to hear audio.

Model controls

2. Add custom text

3. Sample spelling list

4. Compare models

Select a sample below, then switch models and listen again.

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Production note: cache generated audio for repeated spelling words. For words with ambiguous pronunciation (e.g. “read”), store an explicit pronunciation/phoneme entry with the lesson.