{
  "songs": [
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      "output": "/srv/music-files/pipeline/batch-20260404-102449/03_Get You_Still_Waters_20260404/suno_mixed_0.mp3",
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=85% Mid=13% High=2% W=4.0% Crest=13.6",
        "   目标: Low=50% Mid=48% High=1% W=6.2% Crest=14.1",
        "   差值: ΔLow=+35% ΔMid=-35% ΔHigh=+1% ΔW=-2.2% ΔCrest=-0.5",
        "   低频偏多+35%: 去闷=-2.0dB, 低频增强=0.0dB, 收紧=-1.5dB",
        "   高频接近目标(Δ+1%) → 微量空气感+0.3dB",
        "   LowMid偏少-29%: 600Hz=+0.5dB",
        "   Mid偏少-6%: 2.5kHz=+0.2dB q=1.0",
        "   宽度偏窄-2.2%: Side=+0.3dB",
        "   动态接近目标(Δ-0.5dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
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        "confidence": "medium",
        "source": "audio",
        "bpm": 129.2,
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    {
      "input": "/srv/music-files/pipeline/batch-20260404-102449/03_Get You_Still_Waters_20260404/suno_raw_1.mp3",
      "output": "/srv/music-files/pipeline/batch-20260404-102449/03_Get You_Still_Waters_20260404/suno_mixed_1.mp3",
      "before": {
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        "peak": -0.10000000149011612,
        "rms": -14.0,
        "crest": 13.899999618530273,
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        "mid_pct": 13.600000381469727,
        "high_pct": 3.5,
        "centroid": 473.0,
        "bands": {
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          "mid": 3.5,
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          "air": 1.7999999523162842
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        "rms": -12.399999618530273,
        "crest": 12.899999618530273,
        "width": 5.699999809265137,
        "low_pct": 69.5,
        "mid_pct": 24.0,
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        "centroid": 800.0,
        "bands": {
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          "low_mid": 18.5,
          "mid": 5.599999904632568,
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        "mid_peak_db": 0,
        "mid_peak_q": 1.0,
        "mid_kick_hz": 100,
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        "mid_snap_db": 0.14400000870227814,
        "mid_snap_q": 1.0,
        "parallel_comp_enabled": true,
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        "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": -2.0,
        "dull_q": 1.5,
        "sub_shelf_hz": 80,
        "sub_shelf_db": 0.0,
        "tight_hz": 120,
        "tight_db": -1.4749999046325684,
        "tight_q": 1.5,
        "air_hz": 16000,
        "air_db": 0.06000000238418579,
        "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,
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        "_global_low": 82.9000015258789,
        "_global_mid": 13.600000381469727,
        "_global_high": 3.5
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=83% Mid=14% High=4% W=3.9% Crest=13.9",
        "   目标: Low=50% Mid=48% High=1% W=6.2% Crest=14.1",
        "   差值: ΔLow=+32% ΔMid=-35% ΔHigh=+2% ΔW=-2.3% ΔCrest=-0.2",
        "   低频偏多+32%: 去闷=-2.0dB, 低频增强=0.0dB, 收紧=-1.5dB",
        "   高频偏多+2%: 空气感=0.1dB",
        "   LowMid偏少-30%: 600Hz=+0.5dB",
        "   Mid偏少-5%: 2.5kHz=+0.1dB q=1.0",
        "   宽度偏窄-2.3%: Side=+0.3dB",
        "   动态接近目标(Δ-0.2dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
      ],
      "genre": {
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        "confidence": "medium",
        "source": "audio",
        "bpm": 129.2,
        "centroid": 2360.0,
        "onset_density": 2.6,
        "low_energy": 76.0
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        "peak": 0.699999988079071,
        "rms": -13.399999618530273,
        "crest": 14.100000381469727,
        "width": 6.199999809265137,
        "low_pct": 50.400001525878906,
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        "bands": {
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          "mid": 8.300000190734863,
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          "air": 0.20000000298023224
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  ],
  "time": 51.1
}