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Supertone Releases Supertonic v3: On-Device Text-to-Speech Model with 31-Language Support, Fewer Reading Failures, and Expression Tags

Supertone releases third-generation on-device TTS engine with 31 languages, improved reading stability, expression tags, and v2-compatible interface. The model has ~99M parameters and 404 MB ONNX assets, featuring built-in text normalization and competitive WER/CER against larger models.

SourceMarkTechPostAuthor: Asif Razzaq
Supertone Releases Supertonic v3: On-Device Text-to-Speech Model with 31-Language Support, Fewer Reading Failures, and Expression Tags
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Key points

  • Language support expanded from 5 to 31 languages including Japanese, Arabic, German, etc.
  • New expressive tags (, , ) allow inline prosody cues without preprocessing
  • Flow matching with LARoPE and self-purifying training enhances alignment and robustness
  • Built-in text normalization handles financial expressions, dates, phone numbers, and technical units without failure

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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