{
  "songs": [
    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260412-021320-a55a57/01_thank u, next_20260412/suno_raw_0.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260412-021320-a55a57/01_thank u, next_20260412/suno_mixed_0.mp3",
      "before": {
        "lufs": -13.9,
        "peak": 0.0,
        "rms": -15.5,
        "crest": 15.5,
        "width": 8.899999618530273,
        "low_pct": 58.0,
        "mid_pct": 37.099998474121094,
        "high_pct": 4.900000095367432,
        "centroid": 765.0,
        "bands": {
          "sub": 31.899999618530273,
          "bass": 26.100000381469727,
          "low_mid": 29.899999618530273,
          "mid": 7.199999809265137,
          "high_mid": 1.7000000476837158,
          "air": 3.200000047683716
        }
      },
      "after": {
        "lufs": -10.9,
        "peak": 0.20000000298023224,
        "rms": -12.5,
        "crest": 12.699999809265137,
        "width": 8.300000190734863,
        "low_pct": 54.79999923706055,
        "mid_pct": 39.70000076293945,
        "high_pct": 5.5,
        "centroid": 834.0,
        "bands": {
          "sub": 35.0,
          "bass": 19.899999618530273,
          "low_mid": 32.0,
          "mid": 7.599999904632568,
          "high_mid": 1.899999976158142,
          "air": 3.5999999046325684
        }
      },
      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.0,
        "mid_peak_hz": 60,
        "mid_peak_db": 0.43199998140335083,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
        "mid_kick_db": 0.43199998140335083,
        "mid_kick_q": 1.0,
        "mid_snap_hz": 2500,
        "mid_snap_db": 0.09300000965595245,
        "mid_snap_q": 1.0,
        "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": 0.1340000033378601,
        "pre_gain_db": 0.0,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": 0.0,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 1.5279998779296875,
        "tight_hz": 120,
        "tight_db": 0.0,
        "tight_q": 1.5,
        "air_hz": 16000,
        "air_db": -0.07799999415874481,
        "comp_threshold_db": -10.15999984741211,
        "comp_ratio": 2.0,
        "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": -0.2369999885559082,
        "side_gain_db": 0.0,
        "_global_low": 58.0,
        "_global_mid": 37.099998474121094,
        "_global_high": 4.900000095367432
      },
      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=58% Mid=37% High=5% W=8.9% Crest=15.5",
        "   目标: Low=65% Mid=32% High=3% W=9.1% Crest=11.9",
        "   差值: ΔLow=-7% ΔMid=+5% ΔHigh=+2% ΔW=-0.2% ΔCrest=+3.6",
        "   低频偏少-7%: 去闷=0, 低频增强=1.5dB, Mid低频=0.4dB",
        "   高频偏多+2%: 空气感=0.1dB",
        "   LowMid偏多+8%: 600Hz=-0.2dB",
        "   Mid偏少-3%: 2.5kHz=+0.1dB q=1.0",
        "   Air偏多+2.1%: 空气感再降0.2dB→-0.1dB",
        "   宽度接近目标(Δ-0.2%) → Side增益归零",
        "   动态偏大+3.6dB: 压缩阈值=-10.2dB, PC mix=13%"
      ],
      "genre": {
        "genre": "pop",
        "confidence": "medium",
        "source": "audio",
        "bpm": 107.7,
        "centroid": 2912.0,
        "onset_density": 3.2,
        "low_energy": 48.5
      },
      "ref": {
        "lufs": -9.2,
        "peak": 1.2000000476837158,
        "rms": -10.699999809265137,
        "crest": 11.899999618530273,
        "width": 9.100000381469727,
        "low_pct": 64.5999984741211,
        "mid_pct": 32.29999923706055,
        "high_pct": 2.799999952316284,
        "centroid": 564.0,
        "bands": {
          "sub": 44.599998474121094,
          "bass": 20.0,
          "low_mid": 22.0,
          "mid": 10.300000190734863,
          "high_mid": 1.7000000476837158,
          "air": 1.100000023841858
        }
      }
    },
    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260412-021320-a55a57/01_thank u, next_20260412/suno_raw_1.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260412-021320-a55a57/01_thank u, next_20260412/suno_mixed_1.mp3",
      "before": {
        "lufs": -12.9,
        "peak": -0.8999999761581421,
        "rms": -14.300000190734863,
        "crest": 13.399999618530273,
        "width": 13.100000381469727,
        "low_pct": 69.4000015258789,
        "mid_pct": 27.799999237060547,
        "high_pct": 2.700000047683716,
        "centroid": 484.0,
        "bands": {
          "sub": 22.899999618530273,
          "bass": 46.599998474121094,
          "low_mid": 23.399999618530273,
          "mid": 4.400000095367432,
          "high_mid": 1.0,
          "air": 1.7000000476837158
        }
      },
      "after": {
        "lufs": -10.5,
        "peak": 0.0,
        "rms": -12.199999809265137,
        "crest": 12.199999809265137,
        "width": 11.399999618530273,
        "low_pct": 58.900001525878906,
        "mid_pct": 37.099998474121094,
        "high_pct": 4.0,
        "centroid": 659.0,
        "bands": {
          "sub": 21.0,
          "bass": 37.79999923706055,
          "low_mid": 31.700000762939453,
          "mid": 5.400000095367432,
          "high_mid": 1.399999976158142,
          "air": 2.5999999046325684
        }
      },
      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.0,
        "mid_peak_hz": 60,
        "mid_peak_db": 0.3,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
        "mid_kick_db": 0.3,
        "mid_kick_q": 1.0,
        "mid_snap_hz": 2500,
        "mid_snap_db": 0.1770000010728836,
        "mid_snap_q": 1.0,
        "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": 0.0,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": -0.3,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.5,
        "tight_hz": 120,
        "tight_db": -0.5,
        "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": 0.0,
        "side_gain_db": -0.4000000059604645,
        "_global_low": 69.4000015258789,
        "_global_mid": 27.799999237060547,
        "_global_high": 2.700000047683716
      },
      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=69% Mid=28% High=3% W=13.1% Crest=13.4",
        "   目标: Low=65% Mid=32% High=3% W=9.1% Crest=11.9",
        "   差值: ΔLow=+5% ΔMid=-4% ΔHigh=-0% ΔW=+4.0% ΔCrest=+1.5",
        "   低频接近目标(Δ+5%) → 微调模式",
        "   高频接近目标(Δ-0%) → 微量空气感+0.3dB",
        "   LowMid接近目标(Δ+1%) → 不调",
        "   Mid偏少-6%: 2.5kHz=+0.2dB q=1.0",
        "   宽度偏宽+4.0%: Side整体=-0.4dB",
        "   动态接近目标(Δ+1.5dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
        "genre": "pop",
        "confidence": "medium",
        "source": "audio",
        "bpm": 107.7,
        "centroid": 2518.0,
        "onset_density": 2.6,
        "low_energy": 37.20000076293945
      },
      "ref": {
        "lufs": -9.2,
        "peak": 1.2000000476837158,
        "rms": -10.699999809265137,
        "crest": 11.899999618530273,
        "width": 9.100000381469727,
        "low_pct": 64.5999984741211,
        "mid_pct": 32.29999923706055,
        "high_pct": 2.799999952316284,
        "centroid": 564.0,
        "bands": {
          "sub": 44.599998474121094,
          "bass": 20.0,
          "low_mid": 22.0,
          "mid": 10.300000190734863,
          "high_mid": 1.7000000476837158,
          "air": 1.100000023841858
        }
      }
    }
  ],
  "time": 43.2
}