Phoneme-Level Speech API
Listen and repeat — AI-driven shadowing practice
Improve your pronunciation by shadowing realistic AI-generated speech. The app uses Gemini TTS for the target audio and the Langcraft Phoneme API for phoneme-level feedback on your repetition.
How it works
- Pick a sentence: choose any reference text or paste your own.
- Hear it: Gemini TTS generates a natural target voice in your chosen accent.
- Repeat it: record yourself shadowing the speech.
- See phoneme-level feedback: Langcraft scores each phoneme and surfaces substitutions.
Get started
Review the API documentation, try the live demo, or request an API key to integrate phoneme-level speech analysis into your product.