{
  "name": "bigvgan_disc_fm_retest",
  "description": "Retest discriminator feature matching after bfloat16 dtype fix. Uses optimal config from overnight sweep (snake_alpha, GAFilter, lr=1e-4, phase=1.0, L2-SP=1e-3, 5000 steps).",
  "data_dir": "/media/unraid/davinci/Selva/BJ/features",
  "output_root": "/media/unraid/davinci/Selva/BJ/experiment/bigvgan_disc_fm_retest",
  "base": {
    "train_mode": "snake_alpha_only",
    "steps": 5000,
    "lr": 1e-4,
    "batch_size": 8,
    "segment_seconds": 0.5,
    "lambda_l2sp": 1e-3,
    "use_gafilter": true,
    "gafilter_kernel_size": 9,
    "lambda_phase": 1.0,
    "save_every": 1000,
    "seed": 42,
    "lora_adapter": "/media/unraid/davinci/Selva/BJ/experiment/pissa_sweep/standard_baseline/adapter_final.pt"
  },
  "experiments": [
    {
      "id": "snake_5k_control",
      "description": "Control: best config from overnight sweep without discriminator. Baseline for A/B comparison."
    },
    {
      "id": "disc_fm_5k",
      "description": "Discriminator feature matching at 5k steps. Tests if perceptual FM loss improves over mel+phase alone.",
      "discriminator_path": "/media/unraid/davinci/Selva/BJ/experiment/bigvgan_discriminator_optimizer.pt"
    }
  ]
}