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. 如何量测<br />

由扬声器发出一粉噪声到待测房间。声源从发出到声能量被吸收达平衡,<br />

停止声源信号。AL1会感应到声源中断,触发自动量测并计算衰减时间,得<br />

到RT60 测试结果。<br />

请依照下面量测 RT60 的步骤:<br />

量程<br />

• 选择 RANGE 后按回车,量测目前房间<br />

内的声压级(无测试信号状态)。<br />

• SET RANGE 视窗弹出。选OK确认自动<br />

量程。<br />

现在的上标是完成一个量测所需要的最小粉<br />

噪声。下标无任何测试信号时的环境噪声。<br />

37

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