{
  "songs": [
    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260514-120504-ff9f9f/04_nostalgia_20260514/suno_raw_0.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260514-120504-ff9f9f/04_nostalgia_20260514/suno_mixed_0.mp3",
      "before": {
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        "centroid": 191.0,
        "bands": {
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          "bass": 68.69999694824219,
          "low_mid": 17.899999618530273,
          "mid": 1.399999976158142,
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        "peak": 0.30000001192092896,
        "rms": -13.399999618530273,
        "crest": 13.699999809265137,
        "width": 6.599999904632568,
        "low_pct": 76.0,
        "mid_pct": 23.899999618530273,
        "high_pct": 0.10000000149011612,
        "centroid": 215.0,
        "bands": {
          "sub": 11.699999809265137,
          "bass": 64.30000305175781,
          "low_mid": 22.299999237060547,
          "mid": 1.600000023841858,
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      },
      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.15839998424053192,
        "mid_peak_hz": 60,
        "mid_peak_db": 0,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
        "mid_kick_db": 0,
        "mid_kick_q": 1.0,
        "mid_snap_hz": 1000,
        "mid_snap_db": 0.0,
        "mid_snap_q": 0.5,
        "parallel_comp_enabled": true,
        "parallel_comp_threshold_db": -20.0,
        "parallel_comp_ratio": 8.0,
        "parallel_comp_attack_ms": 5,
        "parallel_comp_release_ms": 150,
        "parallel_comp_mix": 0.03,
        "pre_gain_db": -1.5,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": -2.0,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.0,
        "tight_hz": 120,
        "tight_db": -1.306999921798706,
        "tight_q": 1.5,
        "air_hz": 16000,
        "air_db": 0.3,
        "comp_threshold_db": -6.0,
        "comp_ratio": 1.5,
        "comp_attack_ms": 20,
        "comp_release_ms": 100,
        "limiter_threshold_db": -1.0,
        "limiter_release_ms": 100,
        "dynamic_eq": false,
        "mp3_bitrate": 320,
        "_lowmid_boost_db": 0.5,
        "side_gain_db": 0.5279999375343323,
        "_global_low": 80.5999984741211,
        "_global_mid": 19.299999237060547,
        "_global_high": 0.10000000149011612
      },
      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=81% Mid=19% High=0% W=4.5% Crest=13.4",
        "   目标: Low=54% Mid=45% High=1% W=8.9% Crest=15.6",
        "   差值: ΔLow=+27% ΔMid=-26% ΔHigh=-1% ΔW=-4.4% ΔCrest=-2.2",
        "   低频偏多+27%: 去闷=-2.0dB, 低频增强=0.0dB, 收紧=-1.3dB",
        "   高频接近目标(Δ-1%) → 微量空气感+0.3dB",
        "   LowMid偏少-25%: 600Hz=+0.5dB",
        "   Mid接近目标(Δ-1%) → 不调",
        "   宽度偏窄-4.4%: Side=+0.5dB",
        "   动态接近目标(Δ-2.2dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
        "genre": "edm",
        "confidence": "high",
        "source": "audio",
        "bpm": 161.5,
        "centroid": 827.0,
        "onset_density": 4.1,
        "low_energy": 81.9000015258789
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      "ref": {
        "lufs": -15.2,
        "peak": -1.100000023841858,
        "rms": -16.700000762939453,
        "crest": 15.600000381469727,
        "width": 8.899999618530273,
        "low_pct": 53.70000076293945,
        "mid_pct": 45.099998474121094,
        "high_pct": 1.2000000476837158,
        "centroid": 424.0,
        "bands": {
          "sub": 24.600000381469727,
          "bass": 29.100000381469727,
          "low_mid": 42.599998474121094,
          "mid": 2.5,
          "high_mid": 1.100000023841858,
          "air": 0.10000000149011612
        }
      }
    },
    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260514-120504-ff9f9f/04_nostalgia_20260514/suno_raw_1.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260514-120504-ff9f9f/04_nostalgia_20260514/suno_mixed_1.mp3",
      "before": {
        "lufs": -14.6,
        "peak": 0.0,
        "rms": -16.0,
        "crest": 16.100000381469727,
        "width": 6.800000190734863,
        "low_pct": 80.69999694824219,
        "mid_pct": 19.100000381469727,
        "high_pct": 0.10000000149011612,
        "centroid": 213.0,
        "bands": {
          "sub": 17.100000381469727,
          "bass": 63.70000076293945,
          "low_mid": 17.100000381469727,
          "mid": 2.0999999046325684,
          "high_mid": 0.10000000149011612,
          "air": 0.0
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      },
      "after": {
        "lufs": -13.4,
        "peak": 0.30000001192092896,
        "rms": -14.899999618530273,
        "crest": 15.199999809265137,
        "width": 9.399999618530273,
        "low_pct": 73.30000305175781,
        "mid_pct": 26.600000381469727,
        "high_pct": 0.10000000149011612,
        "centroid": 259.0,
        "bands": {
          "sub": 16.700000762939453,
          "bass": 56.599998474121094,
          "low_mid": 23.899999618530273,
          "mid": 2.700000047683716,
          "high_mid": 0.10000000149011612,
          "air": 0.0
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      },
      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.07559997588396072,
        "mid_peak_hz": 60,
        "mid_peak_db": 0,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
        "mid_kick_db": 0,
        "mid_kick_q": 1.0,
        "mid_snap_hz": 1000,
        "mid_snap_db": 0.0,
        "mid_snap_q": 0.5,
        "parallel_comp_enabled": true,
        "parallel_comp_threshold_db": -20.0,
        "parallel_comp_ratio": 8.0,
        "parallel_comp_attack_ms": 5,
        "parallel_comp_release_ms": 150,
        "parallel_comp_mix": 0.03,
        "pre_gain_db": -1.5,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": -2.0,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.0,
        "tight_hz": 120,
        "tight_db": -1.309999942779541,
        "tight_q": 1.5,
        "air_hz": 16000,
        "air_db": 0.3,
        "comp_threshold_db": -6.0,
        "comp_ratio": 1.5,
        "comp_attack_ms": 20,
        "comp_release_ms": 100,
        "limiter_threshold_db": -1.0,
        "limiter_release_ms": 100,
        "dynamic_eq": false,
        "mp3_bitrate": 320,
        "_lowmid_boost_db": 0.5,
        "side_gain_db": 0.2519999146461487,
        "_global_low": 80.69999694824219,
        "_global_mid": 19.100000381469727,
        "_global_high": 0.10000000149011612
      },
      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=81% Mid=19% High=0% W=6.8% Crest=16.1",
        "   目标: Low=54% Mid=45% High=1% W=8.9% Crest=15.6",
        "   差值: ΔLow=+27% ΔMid=-26% ΔHigh=-1% ΔW=-2.1% ΔCrest=+0.5",
        "   低频偏多+27%: 去闷=-2.0dB, 低频增强=0.0dB, 收紧=-1.3dB",
        "   高频接近目标(Δ-1%) → 微量空气感+0.3dB",
        "   LowMid偏少-25%: 600Hz=+0.5dB",
        "   Mid接近目标(Δ-0%) → 不调",
        "   宽度偏窄-2.1%: Side=+0.3dB",
        "   动态接近目标(Δ+0.5dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
        "genre": "rnb",
        "confidence": "medium",
        "source": "audio",
        "bpm": 80.7,
        "centroid": 610.0,
        "onset_density": 3.5,
        "low_energy": 79.5
      },
      "ref": {
        "lufs": -15.2,
        "peak": -1.100000023841858,
        "rms": -16.700000762939453,
        "crest": 15.600000381469727,
        "width": 8.899999618530273,
        "low_pct": 53.70000076293945,
        "mid_pct": 45.099998474121094,
        "high_pct": 1.2000000476837158,
        "centroid": 424.0,
        "bands": {
          "sub": 24.600000381469727,
          "bass": 29.100000381469727,
          "low_mid": 42.599998474121094,
          "mid": 2.5,
          "high_mid": 1.100000023841858,
          "air": 0.10000000149011612
        }
      }
    }
  ],
  "time": 22.6
}