IBMTTS Android Bridge (Eloquence for Termux)

A high-performance bridge server that allows running the 32-bit Windows ETI Eloquence (IBMTTS) engine on Android devices via Termux, Box86, and Wine.

🚀 Overview

This project solves the “No source code” problem for porting legacy Windows TTS engines to Android. It uses a Go-based server to load the 32-bit Windows DLLs and provides a low-latency TCP socket for Android applications to stream real-time audio.

Features

• Ultra-Low Latency: Direct PCM streaming via TCP.
• Self-Contained: The Go binary can embed the entire engine (ECI.DLL + .SYN files).
• Termux Ready: Optimized for headless execution in Termux using Box86 and Wine.
• JSON Protocol: Simple command structure for speak, stop, and parameter adjustments (speed, pitch, volume).

---

🛠️ Installation (Termux)

1. Download the setup_eloquence.sh script to your Termux home directory.
2. Make it executable:

   chmod +x setup_eloquence.sh
   

3. Run the setup:

   ./setup_eloquence.sh
   

4. Start the engine:

   start-eloquence
   

---

💻 Development & Building

Prerequisites

• Go (1.16 or higher)
• The engine files (ECI.DLL and .SYN files) placed in a lib/ folder.

Building for 32-bit Windows

To build the server for use in Wine/Termux:

# Windows
$env:GOARCH='386'; $env:GOOS='windows'; go build -ldflags='-s -w' -o ibmtts_server_32bit.exe main.go

Testing (Python)

You can test the server using the provided test_client.py:

python test_client.py

---

📡 API Protocol

The server listens on 127.0.0.1:5555.

Speak Command

{
  "cmd": "speak",
  "text": "Hello world"
}

Set Parameters

{
  "cmd": "set_param",
  "param": "speed",
  "value": 100
}

Supported params: speed, pitch, volume, voice.

Stop Command

{
  "cmd": "stop"
}

---

⚖️ License

This bridge code is released under the MIT License. Note that the ETI Eloquence / IBMTTS engine components are proprietary and are not included in the source code. You must provide your own licensed DLLs.