Foundation for the LTX-2.3 T2VS port (card/loop/program wiring + GPU verify to follow):
- TorchLTX2DiT.__call__ gains an optional joint audio path: pass audio_latent[8,T,16] + audio_text and it
feeds audio_hidden_states/audio_encoder_hidden_states/audio_timestep/audio_sigma in ONE forward
(LTX-2.3 cross-attends video<->audio) and returns (video_velocity, audio_velocity). Video-only call is
byte-for-byte unchanged (audio_latent=None).
- TorchGemma.encode_av returns the SEPARATE (video_text, audio_text) projections from the 2.3 connector
(video=last_hidden_state, audio=hidden_states[0]); 2.0 returns them equal.
- TorchLTX2AudioVAE (AudioDecoder -> Vocoder -> waveform@24kHz) + TorchLTX2Vocoder wrapper.
Additive + backward-compatible; CPU suite unaffected (adapters are GPU-lazy).
SolitaryThinker
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