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# SFX training extension
Open-Sora-v2 itself does not provide a native SFX generator checkpoint.
Keep SFX as a separate model/adapter until a licensed audio dataset and
real audio generator are selected.
The intended v2.1 artifact layout is:
```text
/audio/
sfx_model.safetensors
config.json
```
Training examples should contain licensed audio plus event metadata such as:
```json
{
"start": 1.25,
"duration": 0.35,
"event": "footstep",
"intensity": 0.72
}
```
The video generation Job can then create a timeline and mux generated SFX
into the final MP4. Do not claim SFX is trained until an actual audio model
has been trained and evaluated.

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