Config files

Every ESPnet3 recipe is driven by a small set of YAML files under conf/. Each stage reads exactly one of them; there are no CLI key-value overrides.

training.yaml

Dataset, model, trainer, optimizer, and dataloader settings for create_dataset, collect_stats, and train.

inference.yaml

Decoder settings, test sets, output layout, and inference contract for the infer stage.

Contract

Declarative description of model inputs and outputs with kinds, constraints, and normalizers.

publication.yaml

Model card and Hugging Face Hub settings for pack_model / upload_model.

demo.yaml

Gradio demo definition for pack_demo / upload_demo.

Related pages

• Stages — which stage reads which config file.
• metrics.yaml — documented together with the measure stage.
• Experiment naming — how exp_tag and exp_dir are derived.