it_IT-serena-medium — Piper voice (Italian)
Custom Italian voice for Piper, trained from the
committa/serena-synthetic-it-28h dataset (Qwen3-TTS synthetic voice).
- Language: Italian (
it) — neutral Standard Italian (no regional accent) - Voice: female ("serena")
- Sample rate: 22050 Hz
- Quality: medium
- Files:
it_IT-serena-medium.onnx+it_IT-serena-medium.onnx.json(must stay together)
License
CC-BY-4.0 — this model is derived from committa/serena-synthetic-it-28h.
Recommended inference settings
The .onnx.json already embeds these defaults; the CLI uses them automatically.
They were chosen after stability testing: the Piper stock defaults (0.667 / 0.8)
tend to swallow phonemes (e.g. /r/ in "portato").
| Parameter | Value |
|---|---|
| noise_scale | 0.6 |
| length_scale | 1.0 |
| noise_w | 0.4 |
| sentence_silence | 0.2 |
Sample
CLI usage
piper -m it_IT-serena-medium.onnx < text.txt
Explicit overrides (optional):
piper -m it_IT-serena-medium.onnx --noise-scale 0.6 --noise-w 0.4 < text.txt
Home Assistant (piper add-on)
The Home Assistant add-on ignores the .onnx.json settings and always passes its
own options, whose defaults (noise_scale 0.667, noise_w 0.333) are NOT optimal for
this voice. For the best quality set in the add-on options:
noise_scale: 0.6length_scale: 1.0noise_w: 0.4sentence_silence: 0.2 (optional; add-on default is 0.0)
Notes
- Pronunciation of rare vocabulary (<10 occurrences in training data) can be off; fix with espeak-ng rules if needed.
- The training checkpoint (base for finetuning other Italian voices) is published at: https://huggingface.co/committa/it_IT-serena-medium-checkpoint