Phoneme-Level Speech API

Live Pronunciation Assessment Demo

Test the Langcraft Phoneme API directly in your browser. Record a sentence, choose a reference text, and see word-level and phoneme-level scoring with IPA transcription and mispronunciation detection in real time.

What you can try

  • Speech-to-IPA conversion: see how your audio maps to International Phonetic Alphabet symbols.
  • Reference alignment: compare your pronunciation against a target sentence.
  • Articulatory feedback: see substitutions, insertions, and deletions per phoneme.
  • Multi-language: try the demo in 40+ supported languages.

Get started

Review the API documentation, try the live demo, or request an API key to integrate phoneme-level speech analysis into your product.

Read the API docs Test the live demo Request an API key