# TCA-Bench Evaluation Protocol

The evaluator scores candidate audiovisual captions in four stages:

- `1v`: Stage-1 visual caption quality against `gt/captions.json`.
- `1a`: Stage-1 audio caption quality against `gt/captions.json`.
- `2`: Stage-2 audio-visual binding accuracy against `gt/stage-2.json`.
- `3`: Stage-3 temporal relation F1 against `gt/stage-3.json`.

Prompt files are located in `prompts/`. `caption_prompt.txt` is the recommended prompt for generating candidate captions before evaluation.