ggml-org/llama.cpp b11850

on GitHub

mtmd : add Soprano TTS support (#28607)

Add Soprano-80M and Soprano-1.1-80M (https://huggingface.co/ekwek/Soprano-1.1-80M)
as an audio generation model: a Qwen3 backbone plus a Vocos decoder that runs
as a gen-only mmproj.

• convert: detect Soprano checkpoints and export the backbone as qwen3 and the
  decoder.pth Vocos weights as the mmproj
• vocab: add the soprano pre-tokenizer (lowercase, whitespace collapse,
  per-digit split, [UNK] fallback)
• mtmd: add the Vocos graph and ISTFT, allow loading a gen-only mmproj for
  Soprano and include the gen-audio context in mtmd_get_memory_usage
• mtmd-helper: add the Soprano pipeline; the decoder runs over the whole
  utterance, so stream mode sends the audio in one chunk after flush()
• tts: document Soprano usage

Assisted-by: Codex
Assisted-by: Claude Opus 5.5