Supertone Launches Supertonic v3 On-Device TTS Engine with Expanded Language Support

Supertone, a prominent speech artificial intelligence company headquartered in Seoul, has officially released the third generation of its proprietary on-device text-to-speech (TTS) engine, known as Supertonic v3. This significant software update introduces a suite of advanced features designed to enhance user experience and technical performance. Key improvements include support for thirty-one distinct languages, representing a six-fold increase in language coverage compared to previous iterations. The new model also incorporates expressive tags, allowing for more nuanced and natural-sounding speech synthesis, alongside improved reading stability that significantly reduces failure rates during text processing. Notably, Supertone has maintained the same inference contract for existing integrations, ensuring that current clients can upgrade to the enhanced capabilities without needing to refactor their code or adjust their integration frameworks. This strategic move highlights the company's commitment to seamless scalability and developer convenience. The release underscores the rapid advancements in on-device AI processing, enabling high-quality speech generation directly on user hardware without relying heavily on cloud infrastructure. This development is particularly relevant for applications requiring low latency, offline functionality, and enhanced data privacy, positioning Supertone competitively in the growing market for embedded speech AI solutions.