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1.1.7
Offline text to speech. Natural AI voices. Private reader — no account, no ads.
Local TTS is an offline-first voice reader. Paste, type, or import text and hear natural on-device speech with follow-along highlighting. No cloud voice API. No account. No ads. After the one-time model download, text to speech works offline. Your notes stay on the phone. WHY PEOPLE INSTALL LOCAL TTS • Natural AI voices — Kokoro English (28 US/UK voices) + Supertonic multilingual styles • Offline text to speech after setup — commute, travel, weak signal • Private: speech is generated on-device, not sent to a voice server • Word-level follow-along highlighting while it reads • Notes library with search, tags, and a simple editor • Speed and pitch (0.5×–2.0×), ±15s seek, background / lock-screen playback • Import plain text files (UTF-8) • Free to use — no ads, no login MADE FOR Students, writers, language learners, and anyone who wants to listen to their own text without handing it to a cloud TTS service. HOW IT WORKS 1. Install and finish the voice model download (Wi‑Fi recommended; about 550–600 MB storage) 2. Create a note, paste text, or import a .txt file 3. Pick a voice (and reading language) and tap play 4. Follow along as words highlight; keep listening in the background VOICES & LANGUAGES • English neural voices (Kokoro) with US and UK options • Multilingual reading styles (Supertonic) across 31 speech languages + Mixed/Auto • Preview voices before you choose PRIVACY & OFFLINE Synthesis runs on your device with ONNX. Internet is only needed to download models the first time. Notes are stored locally and are excluded from Android cloud backup. REQUIREMENTS • Android 9 or later • 64-bit device (arm64 / x86_64) — not 32-bit ARM • About 550–600 MB free storage for models • 6 GB+ RAM recommended for smooth speech HONEST LIMITS Local TTS is a dedicated AI voice reader. It is not Android’s system TTS engine — other apps and TalkBack cannot use it as the device voice. Scan-to-text, PDF import, and audio export are not included yet. Pronunciation and highlight timing can vary by language and punctuation. Multilingual voices need the Supertonic download to finish. From Umber Lab — Local TTS: listen privately, offline, on your phone.