Supertonic TTS
Overview
• Unlock the true power of voice with Supertonic TTS, a modern speech synthesis engine designed for those who believe technology should be both fast and private.
• By processing everything directly on your device, Supertonic frees you from cloud dependence and delivers high-fidelity audio instantly, without ever risking your data.
Absolute Privacy and Power
1. Complete Local Processing:
• Your text and voice files stay entirely on your device, secure from tracking, internet requirements, and data collection.
2. Uncompromising Speed:
• Built with native Rust and ONNX Runtime to deliver instant speech synthesis without draining your battery.
Everyday Integration
1. System-Wide Support:
• Use Supertonic as your default Android engine to enhance your preferred navigation, accessibility, and reading apps.
2. Integrated E-Reader:
• Listen to EPUBs and PDFs effortlessly using the built-in book reader.
Adaptive Interface:
• Enjoy a clean, modern aesthetic that looks and feels natural on any screen.
Creative Control
1. Tailored Pronunciation:
• Create custom rules so the engine pronounces unique names, acronyms, and technical jargon exactly the way you want.
2. High-Quality Exports:
• Save your synthesized speech as premium WAV audio files for external projects or offline listening.
Trust and Transparency
• Open-Source Integrity:
+ Built transparently with community-driven values, ensuring a tool you can genuinely trust.
Take control of your digital voice
• Download Supertonic TTS today and experience seamless, offline speech synthesis.
FAQ
Q: How does complete local processing benefit me as a user?
A: Local processing means that every piece of text you input and every audio file you generate stays entirely on your hardware. This setup eliminates the risk of data collection or tracking and ensures the engine works perfectly even when you do not have an internet connection.
Q: Does using Supertonic TTS require a constant internet connection?
A: No, you do not need to be online to use the speech synthesis features once the app is set up. Because the engine is self-contained on your device, you can enjoy seamless text-to-speech functionality while traveling, in remote areas, or in high-security environments where data transmission is restricted.
Q: What technologies are used to make the engine so fast?
A: The engine is built using native Rust and the ONNX Runtime, which are both known for their exceptional performance and efficiency. These technologies allow the app to deliver instant speech synthesis without causing significant lag or placing an undue burden on your hardware.
Version History
v3.2.6——28 Jul 2026
High-performance, private, and offline systemwide text-to-speech. Download the latest version of Supertonic TTS to enjoy new features and updates immediately!
*3.2.6
Api37 migration
*3.2.5
Fixed Bulgarian and German number normalisation/pronunciation
*3.2.4
feat: relocate audio storage to private external files directory with…
Feature/reduce sibilance
