pipertts_it-IT_dii

This is a text-to-speech voice model for Italian. The voice is Dii, a female voice. It uses the Piper VITS architecture, exported to ONNX for CPU inference. It was fine-tuned from the base voice pipertts_pt-PT_dii, the closest available language for this voice.

Model details

Field	Value
Repository	Phoonnx/pipertts_it-IT_dii
Voice id	OpenVoiceOS/pipertts_it-IT_dii
Languages	it-IT
Architecture	VITS
Text input	espeak phonemes, IPA alphabet
Punctuation	Trained with the clause punctuation , . ! ? : ;. phoonnx 1.96.1a1 and later keep it at synthesis.
Sample rate	22050 Hz
Speakers	1
Training code	Piper, version stamp 1.0.0 (the version string of the training code; a development build carries the stamp of an earlier release)
Phonemizer	espeak-ng through piper-phonemize, version not recorded. If a released piper-phonemize was used, it was at most 1.1.0 (released 2023-07-31), the newest release before the model was first uploaded on 2025-06-29.
Training data	Phoonnx/tts-train-synthetic-dii_it-IT
Base model	Phoonnx/pipertts_pt-PT_dii
Training checkpoint	epoch=3784-step=1885300.ckpt, in this repository for fine-tuning
Trained by	TigreGotico Lda
Licence	CC BY-NC-ND 4.0

How to use

Install phoonnx:

pip install --pre phoonnx

The phonemes come from the espeak-ng program, so install it too (for example apt install espeak-ng). Without it, pip install --pre "phoonnx[espeak]" gives phoonnx the espyak port of espeak-ng. Some espyak phonemes differ from those of espeak-ng, so the voice can say some words wrong with espyak.

Then run:

import wave
from phoonnx.model_manager import TTSModelManager

manager = TTSModelManager()
manager.load()
manager.merge_default_voices()

voice = manager.voices["OpenVoiceOS/pipertts_it-IT_dii"].load()

with wave.open("output.wav", "wb") as wav_file:
    voice.synthesize_wav("Buongiorno, come stai?", wav_file)

In OVOS, phoonnx installs the ovos-tts-plugin-phoonnx plugin. Select this voice in mycroft.conf:

{
  "tts": {
    "module": "ovos-tts-plugin-phoonnx",
    "ovos-tts-plugin-phoonnx": {
      "voice": "OpenVoiceOS/pipertts_it-IT_dii"
    }
  }
}

Training data

Trained on Phoonnx/tts-train-synthetic-dii_it-IT.

Related links

• Training-data collection: https://huggingface.co/collections/TigreGotico/synthetic-tts-datasets
• phoonnx: https://github.com/TigreGotico/phoonnx
• voiceclonnx: https://github.com/TigreGotico/voiceclonnx
• TigreGotico: https://tigregotico.pt

Ownership and licensing

Miro and Dii are the recorded voices of two real people. The voices, the training data, and this model belong to TigreGotico Lda (https://tigregotico.pt).

This model is licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0). You may use and share this model for non-commercial purposes only. Give attribution to TigreGotico Lda. Do not modify, adapt, or build new models from this model. Do not use the voice identity to create derivative voices.

For commercial use, for derivative models, or for any other license of the Miro or Dii voice identity, contact TigreGotico Lda.