cstr/supertonic-3-GGUF

Supertonic-3 — GGUF for CrispASR

GGUF conversion of Supertone/supertonic-3 for the native ggml runtime in CrispASR (issue #434). Non-autoregressive flow-matching TTS, 44.1 kHz, 31 languages, ~99 M parameters, ten preset voices.

ONE file: the four networks (duration predictor, text encoder, vector estimator, vocoder), the unicode indexer, the NFKD text-normalisation tables and all ten voice styles (F1–F5, M1–M5) are embedded.

Usage

crispasr --backend supertonic -m supertonic3-f16.gguf \
    --tts "Hello from Supertonic." -o out.wav
# language / voice / speed / flow steps
crispasr --backend supertonic -m auto --tts "Guten Tag." -l de \
    --voice F2 --tts-speed 1.1 --tts-steps 8 -o out_de.wav

License and attribution

The model weights are OpenRAIL-M, inherited from Supertone/supertonic-3 (Supertone, Inc.). The license permits commercial use but carries USE RESTRICTIONS (see the base repo's LICENSE) — you are responsible for complying with them. The upstream sample code that defines the inference pipeline is MIT (supertone-inc/supertonic). This conversion changes the storage format only; all credit for the model belongs to Supertone.

Validation

Converted and validated on Kaggle (chr1str/crispasr-supertonic-434): per-stage parity against the upstream onnxruntime pipeline (text encoder, all 8 CFG flow steps and the vocoder), plus a TTS→ASR roundtrip with an upstream-reference control arm. See validation/results-434.json.