6403| 20
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[Sony] 有谁成功使用了广电专业系的XLR麦克风在A7系列上 |
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点评
20dB是ATT即衰减值,即在正常麦克风输入基础上衰减20dB。实际测试发现,0dB不衰减时底噪较大,衰减后有所改善
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