{
  "songs": [
    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260412-022438-7a4822/01_Despacito (Remix)_20260412/suno_raw_0.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260412-022438-7a4822/01_Despacito (Remix)_20260412/suno_mixed_0.mp3",
      "before": {
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          "mid": 8.300000190734863,
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          "air": 2.5
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        "rms": -12.899999618530273,
        "crest": 12.899999618530273,
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        "low_pct": 64.19999694824219,
        "mid_pct": 29.5,
        "high_pct": 6.400000095367432,
        "centroid": 955.0,
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          "bass": 35.599998474121094,
          "low_mid": 16.299999237060547,
          "mid": 13.100000381469727,
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      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.27000001072883606,
        "mid_peak_hz": 60,
        "mid_peak_db": 0.5,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
        "mid_kick_db": 0.5,
        "mid_kick_q": 1.0,
        "mid_snap_hz": 2500,
        "mid_snap_db": 0.22499999403953552,
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        "parallel_comp_enabled": true,
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        "parallel_comp_ratio": 8.0,
        "parallel_comp_attack_ms": 5,
        "parallel_comp_release_ms": 150,
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        "pre_gain_db": 0.0,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": -1.4399998188018799,
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        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.28000009059906006,
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        "comp_threshold_db": -6.0,
        "comp_ratio": 1.5,
        "comp_attack_ms": 20,
        "comp_release_ms": 100,
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        "_global_mid": 19.100000381469727,
        "_global_high": 4.699999809265137
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=76% Mid=19% High=5% W=5.0% Crest=14.2",
        "   目标: Low=62% Mid=36% High=2% W=12.5% Crest=12.9",
        "   差值: ΔLow=+14% ΔMid=-17% ΔHigh=+2% ΔW=-7.5% ΔCrest=+1.3",
        "   低频偏多+14%: 去闷=-1.4dB, 低频增强=0.3dB, 收紧=-0.9dB",
        "   高频偏多+2%: 空气感=0.1dB",
        "   LowMid偏少-9%: 600Hz=+0.3dB",
        "   Mid偏少-8%: 2.5kHz=+0.2dB q=1.0",
        "   宽度偏窄-7.5%: Side=+0.9dB",
        "   动态接近目标(Δ+1.3dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
        "genre": "edm",
        "confidence": "high",
        "source": "audio",
        "bpm": 184.6,
        "centroid": 2973.0,
        "onset_density": 3.6,
        "low_energy": 62.599998474121094
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      "ref": {
        "lufs": -7.7,
        "peak": 2.5999999046325684,
        "rms": -10.300000190734863,
        "crest": 12.899999618530273,
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        "low_pct": 61.79999923706055,
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        "high_pct": 2.4000000953674316,
        "centroid": 654.0,
        "bands": {
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          "low_mid": 20.0,
          "mid": 15.800000190734863,
          "high_mid": 1.2000000476837158,
          "air": 1.2000000476837158
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    {
      "input": "/srv/music-files-platform-next/pipeline/batch-20260412-022438-7a4822/01_Despacito (Remix)_20260412/suno_raw_1.mp3",
      "output": "/srv/music-files-platform-next/pipeline/batch-20260412-022438-7a4822/01_Despacito (Remix)_20260412/suno_mixed_1.mp3",
      "before": {
        "lufs": -12.8,
        "peak": -1.100000023841858,
        "rms": -14.699999809265137,
        "crest": 13.5,
        "width": 6.099999904632568,
        "low_pct": 78.5999984741211,
        "mid_pct": 17.299999237060547,
        "high_pct": 4.099999904632568,
        "centroid": 664.0,
        "bands": {
          "sub": 21.0,
          "bass": 57.599998474121094,
          "low_mid": 9.699999809265137,
          "mid": 7.599999904632568,
          "high_mid": 1.399999976158142,
          "air": 2.700000047683716
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      "after": {
        "lufs": -10.3,
        "peak": 0.0,
        "rms": -12.600000381469727,
        "crest": 12.600000381469727,
        "width": 7.599999904632568,
        "low_pct": 66.30000305175781,
        "mid_pct": 27.600000381469727,
        "high_pct": 6.099999904632568,
        "centroid": 971.0,
        "bands": {
          "sub": 22.100000381469727,
          "bass": 44.20000076293945,
          "low_mid": 14.899999618530273,
          "mid": 12.699999809265137,
          "high_mid": 1.899999976158142,
          "air": 4.199999809265137
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      "adapted_params": {
        "side_hp_hz": 120,
        "side_high_shelf_hz": 10000,
        "side_high_shelf_db": 0.23040001094341278,
        "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": 2500,
        "mid_snap_db": 0.2460000216960907,
        "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": -1.6799999475479126,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.1600000262260437,
        "tight_hz": 120,
        "tight_db": -1.003999948501587,
        "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": 0.3089999854564667,
        "side_gain_db": 0.7680000066757202,
        "_global_low": 78.5999984741211,
        "_global_mid": 17.299999237060547,
        "_global_high": 4.099999904632568
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=79% Mid=17% High=4% W=6.1% Crest=13.5",
        "   目标: Low=62% Mid=36% High=2% W=12.5% Crest=12.9",
        "   差值: ΔLow=+17% ΔMid=-18% ΔHigh=+2% ΔW=-6.4% ΔCrest=+0.6",
        "   低频偏多+17%: 去闷=-1.7dB, 低频增强=0.2dB, 收紧=-1.0dB",
        "   高频接近目标(Δ+2%) → 微量空气感+0.3dB",
        "   LowMid偏少-10%: 600Hz=+0.3dB",
        "   Mid偏少-8%: 2.5kHz=+0.2dB q=1.0",
        "   宽度偏窄-6.4%: Side=+0.8dB",
        "   动态接近目标(Δ+0.6dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
        "genre": "edm",
        "confidence": "medium",
        "source": "audio",
        "bpm": 123.0,
        "centroid": 3020.0,
        "onset_density": 3.5,
        "low_energy": 64.80000305175781
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      "ref": {
        "lufs": -7.7,
        "peak": 2.5999999046325684,
        "rms": -10.300000190734863,
        "crest": 12.899999618530273,
        "width": 12.5,
        "low_pct": 61.79999923706055,
        "mid_pct": 35.70000076293945,
        "high_pct": 2.4000000953674316,
        "centroid": 654.0,
        "bands": {
          "sub": 29.5,
          "bass": 32.29999923706055,
          "low_mid": 20.0,
          "mid": 15.800000190734863,
          "high_mid": 1.2000000476837158,
          "air": 1.2000000476837158
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      }
    }
  ],
  "time": 47.6
}