{
  "version": "0.1",
  "default_mode": "3s",
  "modes": {
    "3s": {
      "description": "Recommended FastAligner v0.1 production mode.",
      "chunk_seconds": 3.0,
      "overlap_seconds": 0.75,
      "chunk_mel_frames": 300,
      "overlap_mel_frames": 75,
      "feature_normalization": "full_utterance_before_chunking",
      "stitching": "linear_logit_crossfade",
      "crossfade_min_weight": 0.05,
      "global_ctc_alignment_after_stitch": true
    },
    "full": {
      "description": "Runs the same dynamic ONNX model on the full normalized utterance.",
      "chunk_seconds": null,
      "overlap_seconds": 0.0,
      "feature_normalization": "full_utterance",
      "stitching": null,
      "global_ctc_alignment_after_stitch": true
    }
  },
  "ctc": {
    "blank_token_id": 0,
    "frame_duration_seconds": 0.02,
    "word_end_extra_seconds": 0.025,
    "algorithm": "global_viterbi_forced_alignment"
  }
}