# termux-tts Full Technical Specification (v1.5.5)
Official Documentation & Deep Architecture Reference for Autonomous AI Agents.

## 1. System Overview
Production-Grade 4-Tier On-Device Speech Synthesis Framework (Multilingual Neural Orchestrator, Zero-Dependency DSP Formant & C++ Acceleration)
Termux-TTS delivers a resilient 4-Tier on-device text-to-speech architecture designed for deterministic latency, zero-config ergonomics, and multi-language acoustic fidelity. It bridges lightweight parametric DSP synthesis (<50ms compute, 0MB model download) with high-fidelity resident C-API multilingual neural models (9 languages including Korean, English, Japanese, Hindi, and Russian at 22.05kHz), alongside Android system native speech service routing. With automated 1-click provisioning, Unicode script classification, and resident in-memory model caching, Termux-TTS achieves high acoustic fidelity with sub-0.18x real-time factor.

## 2. Package & Installation
- PyPI: termux-tts
- Command: pip install termux-tts
# or: npm install termux-tts
# 1-Click Provision Default Models (Korean KSS + English Lessac):
termux-tts install
# On-demand provision specific languages (e.g. Hindi, Japanese, Russian, or all):
termux-tts install --models hi
# Instant speech synthesis:
termux-tts "Hello 방가방가 나는 parrot 이라고 해." -o out.wav --play

- Repository: https://github.com/uno-km/termux-tts