Add Italian it_IT-serena medium and high checkpoints

#22
by bacca87 - opened

New Italian checkpoint for the catalog β€” the first one for it (piper-checkpoints
currently has no Italian entry).

  • Language: it_IT (Italian, Italy)
  • Quality: medium, 22,050 Hz
  • Voice: serena β€” female, neutral Standard Italian (no regional accent), synthetic
  • Training: trained from scratch (94 epochs, batch 10, ~27 h of audio)
  • Dataset: committa/serena-synthetic-it-27h (CC-BY-4.0)
  • Recommended inference settings (embedded in the config):
    noise_scale 0.6 / length_scale 1.0 / noise_w 0.4

Files follow the existing piper-checkpoints layout
(<family>/<lang_code>/<dataset>/<quality>/, cf. en/en_US/lessac/medium/):
epoch=94-step=559930.ckpt, config.json, dataset.jsonl.gz, MODEL_CARD,
train.sh, .gitattributes.

Why this checkpoint

There is no official pretrained checkpoint for Italian (the catalog has no it
entry), and the only official Italian voices expose no trainable checkpoint
(it_IT-paola-medium was finetuned from U.S. English and only the onnx is
published; it_IT-riccardo-x_low is x_low). This checkpoint is a valid medium
base for finetuning other Italian voices β€” female or male targets both work,
and the model already speaks Italian (phonemes and prosody), so new voices
converge much faster than from scratch.

Repositories

License

CC-BY-4.0 β€” derived from
committa/serena-synthetic-it-27h.

bacca87 changed pull request title from Add Italian it_IT-serena-medium checkpoint to Add Italian it_IT serena medium and high checkpoint
bacca87 changed pull request title from Add Italian it_IT serena medium and high checkpoint to Add Italian it_IT-serena medium and high checkpoints

New Italian checkpoints for the catalog - the first ones for it
(piper-checkpoints currently has no Italian entry at all).

  • Language: it_IT (Italian, Italy)
  • Quality: medium (94 epochs) and high (99 epochs), 22,050 Hz
  • Voice: serena - female, neutral Standard Italian (no regional accent), synthetic
  • Training: trained from scratch (batch 10, ~27 h of audio)
  • Dataset: committa/serena-synthetic-it-27h (CC-BY-4.0)
  • Recommended inference settings (embedded in the config):
    noise_scale 0.6 / length_scale 1.0 / noise_w 0.4

Files follow the existing piper-checkpoints layout
(////, cf. en/en_US/lessac/medium/):
it/it_IT/serena/medium/ (epoch=94-step=559930.ckpt, config.json,
dataset.jsonl.gz, MODEL_CARD, train.sh, .gitattributes)
it/it_IT/serena/high/ (epoch=99-step=604140.ckpt, config.json,
dataset.jsonl.gz, MODEL_CARD, train.sh, .gitattributes)

Why this checkpoint

There is no official pretrained checkpoint for Italian (the catalog has no it
entry), and the only official Italian voices expose no trainable checkpoint
(it_IT-paola-medium was finetuned from U.S. English and only the onnx is
published; it_IT-riccardo-x_low is x_low). These checkpoints are valid
medium/high bases for finetuning other Italian voices - female or male
targets both work, and the models already speak Italian (phonemes and
prosody), so new voices converge much faster than from scratch.

Repositories

License

CC-BY-4.0 - derived from committa/serena-synthetic-it-27h.

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