The full joint text->video+audio LTX-2.3 path now generates on the real 18.99B model:
- GPU audio components: build_torch_audio_vae (AudioDecoderLoader -> LTX2AudioDecoder, chains the
vocoder) + build_torch_vocoder (VocoderLoader -> LTX2Vocoder); registered the 'audio_vae'/'vocoder'
cuda component kinds; stamped their checkpoint subfolders (_WAN21_SUBFOLDERS).
- Fix: TorchGemma.encode_av must pass output_hidden_states=True — the 2.3 connector's SEPARATE audio
projection lives in hidden_states[0] only then (gemma.py:703); without it the audio text fell back to
the video embedding (4096 vs 2048 -> audio cross-attn shape mismatch).
- GPU-verified T2VS: video (3,33,256,384, std 0.68) + audio (stereo 2x61920 @24kHz, nonzero, std 0.059).
- test_torch_backend: cuda component kinds now include audio_vae + vocoder. CPU suite green (202+2).
SolitaryThinker
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