Tetsy — text to speech with AI voices
IBM Watson voices on Android, as your system text-to-speech engine
IBM Watson Text to Speech offers expressive neural voices in several languages — but Android can't use them as a reading voice on its own. Tetsy registers as a system text-to-speech engine and routes any text your phone wants to speak to Watson, then plays it back.
How to connect IBM Watson in Tetsy
- With your own API key. Paste your IBM Watson API key and service URL into Tetsy — the voices appear in the voice picker. Usage is billed through your IBM Cloud account.
- With Tetsy tokens. No IBM Cloud account needed: buy a universal token package inside Tetsy and use Watson — and every other supported service — right away.
What you get
- IBM Watson as the system TTS engine: every app that reads aloud — e-book readers, browsers, translators — speaks with a Watson voice.
- TalkBack with a natural, human-like voice instead of the robotic default.
- Read articles, notes and whole books aloud inside Tetsy.
- Export speech to MP3, WAV or OGG audio files.
- Speech speed and pitch control, plus per-language engine settings.
FAQ
Do I need an IBM Cloud account?
No. Use your own IBM Watson API key, or Tetsy universal tokens with no IBM account at all.
Which voices are supported?
A curated set of IBM Watson neural voices appears directly in Tetsy's voice picker; speech speed and pitch control are supported.