{
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      "output": "/srv/music-files-platform-next/pipeline/batch-20260512-163605-19aedb/01_So Easy (To Fall In Love)_Second_Glance_20260512/suno_mixed_0.mp3",
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=63% Mid=35% High=2% W=5.9% Crest=14.2",
        "   目标: Low=47% Mid=51% High=2% W=8.2% Crest=12.1",
        "   差值: ΔLow=+16% ΔMid=-16% ΔHigh=+0% ΔW=-2.3% ΔCrest=+2.1",
        "   低频偏多+16%: 去闷=-1.6dB, 低频增强=0.2dB, 收紧=-1.0dB",
        "   高频接近目标(Δ+0%) → 微量空气感+0.3dB",
        "   LowMid偏少-19%: 600Hz=+0.5dB",
        "   Mid接近目标(Δ+2%) → 不调",
        "   宽度偏窄-2.3%: Side=+0.3dB",
        "   动态接近目标(Δ+2.1dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
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    {
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      "output": "/srv/music-files-platform-next/pipeline/batch-20260512-163605-19aedb/01_So Easy (To Fall In Love)_Second_Glance_20260512/suno_mixed_1.mp3",
      "before": {
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          "mid": 2.5999999046325684,
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        "low_pct": 69.5,
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        "pre_gain_db": -1.5,
        "hp_hz": 30,
        "dull_hz": 300,
        "dull_db": -2.0,
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        "sub_shelf_hz": 80,
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        "tight_db": -1.4420000314712524,
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        "air_db": 0.3,
        "comp_threshold_db": -6.0,
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        "limiter_threshold_db": -1.0,
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        "_global_high": 1.2000000476837158
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      "reasons": [
        "🎯 参考曲匹配模式",
        "   输入: Low=78% Mid=20% High=1% W=5.1% Crest=12.8",
        "   目标: Low=47% Mid=51% High=2% W=8.2% Crest=12.1",
        "   差值: ΔLow=+31% ΔMid=-31% ΔHigh=-1% ΔW=-3.1% ΔCrest=+0.7",
        "   低频偏多+31%: 去闷=-2.0dB, 低频增强=0.0dB, 收紧=-1.4dB",
        "   高频接近目标(Δ-1%) → 微量空气感+0.3dB",
        "   LowMid偏少-24%: 600Hz=+0.5dB",
        "   Mid偏少-7%: 2.5kHz=+0.2dB q=1.0",
        "   宽度偏窄-3.1%: Side=+0.4dB",
        "   动态接近目标(Δ+0.7dB) → 极轻压缩(-6dB/1.5:1/PC 3%)"
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        "confidence": "high",
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  "time": 35.7
}