---
language:
- en
- es
- fr
- de
- it
- pt
- pl
- tr
- ru
- nl
- cs
- ar
- zh
- ja
- hu
- ko
- hi
pipeline_tag: text-to-speech
tags:
- text-to-speech
- tts
- ggml
- vulkan
- c++
- on-device
license: other
license_name: coqui-public-model-license
license_link: https://coqui.ai/cpml
base_model: coqui/XTTS-v2
---


# ATTS1HG1: High-Performance GGML Implementation of XTTS-v2

**ATTS1HG1** is a high-speed, native C++ implementation of the Coqui XTTS-v2 model, utilizing the **GGML** tensor library. It features a custom integrated HiFiGAN vocoder optimized for **Vulkan** and **CPU** inference.

<div align="center">

| **Source Code & GUI** | **Base Model** | **Backend** |
|:---:|:---:|:---:|
| [**GitHub: ATTS1HG1**](https://github.com/abbndz/ATTS1HG1) | [Coqui XTTS-v2](https://huggingface.co/coqui/XTTS-v2) | GGML / Vulkan |

</div>

## 🚀 Key Features

* **Blazing Fast:** Generates audio in **< 0.5s** on consumer GPUs (RTX 3090) and **~1.0s** on CPU.
* **Vulkan Support:** Fully optimized HiFiGAN vocoder running on Vulkan (compatible with NVIDIA, AMD, Intel iGPUs).
* **Lightweight:** Native C++ application, no heavy Python dependencies (PyTorch/TensorFlow not required at runtime).
* **Multi-Language:** Supports 17 languages.
* **Voice :** Supports 58 speaker (similar to XTTS).

## 🌍 Supported Languages

The model supports the following 17 languages:

| Code | Language | Native Name |
| :--- | :--- | :--- |
| **en** | English | English |
| **es** | Spanish | Español |
| **fr** | French | Français |
| **de** | German | Deutsch |
| **it** | Italian | Italiano |
| **pt** | Portuguese | Português |
| **pl** | Polish | Polski |
| **tr** | Turkish | Türkçe |
| **ru** | Russian | Русский |
| **nl** | Dutch | Nederlands |
| **cs** | Czech | Čeština |
| **ar** | Arabic | العربية |
| **zh** | Chinese | 中文 |
| **ja** | Japanese | 日本語 |
| **hu** | Hungarian | Magyar |
| **ko** | Korean | 한국어 |
| **hi** | Hindi | हिन्दी |

## ⚡ Performance

Benchmarks based on standard text generation ("Bonjour le monde") using the C++ client:

| Device | Backend | Latency (Total) | Note |
| :--- | :--- | :--- | :--- |
| **NVIDIA RTX 3090** | **Vulkan** | **~0.47s** | 🚀 **Recommended** |
| **Intel iGPU** | Vulkan | ~1.40s | Good for laptops |
| **CPU (Ryzen/Intel)**| CPU (AVX2)| ~1.02s | Solid fallback |
| **NVIDIA RTX 3090** | CUDA | ~1.45s | Slower on HiFiGAN due to kernel overhead |

> **Note:** The Vulkan backend is significantly faster for the HiFiGAN part of the pipeline compared to CUDA due to optimized command buffers and reduced kernel launch overhead for small convolutions.

## 🛠️ Usage

This repository contains the converted `.bin` / `.gguf` weights required by the ATTS1HG1 software.

1.  Download the model files from this repository.
2.  Clone and compile the software from GitHub:
    ```bash
    git clone [https://github.com/abbndz/ATTS1HG1](https://github.com/abbndz/ATTS1HG1)
    ```
3.  Load the model in the GUI or CLI and select **Vulkan** for best performance.

## 📜 License

This project uses the weights from **Coqui XTTS-v2**, which is licensed under the **Coqui Public Model License (CPML)**.
* **Non-commercial use:** You can use this model for personal, educational, and non-commercial projects.
* **Commercial use:** Requires a license from Coqui (check their repository for details).

The C++ code (inference engine) is available under the MIT License (see GitHub).

---
*Credits: Based on the excellent work by Coqui.ai and the GGML library by ggerganov.*