config.json

{
  "model_type": "wav2vec2",
  "sample_rate": 16000,
  "n_mels": 128,
  "n_fft": 1024,
  "hop_length": 512,
  "duration": 4,
  "batch_size": 64,
  "num_epochs": 25,
  "learning_rate": 0.0001,
  "num_workers": 2,
  "max_samples_per_dataset": 20000,
  "weight_decay": 0.01
}