| 不同类型噪声源的声压级/dB | |||||||||
| 声源 | 频率/Hz | ||||||||
| 31.5 | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 | |
| 吊扇 | .3 | 62.3 | .2 | 65.3 | 72.8 | 67.2 | .8 | 63.5 | 68.2 |
| 空调外机 | 40.3 | 48.4 | 53.6 | 58.8 | 61.3 | .5 | 71.1 | 74.8 | 82.2 |
| 电瓶车充电器 | 35.4 | 44.8 | 43.2 | 48.2 | 53.1 | 54.2 | 61.2 | .1 | .7 |
| 树林中的鸟叫声 | 56.5 | 55.8 | 57.1 | 54.7 | 54.7 | 53.6 | 51.6 | 50.4 | 47.2 |
| 东教前车流 | 58.9 | 58.1 | 56.4 | 54.3 | 51.6 | 50.4 | 51.2 | 58.7 | 46.1 |
| 割草机 | 59.9 | 79.4 | 76.3 | 71.3 | 76.9 | 73.1 | 71.1 | 71.9 | 61.3 |
| 东教上课 | 57.7 | 55.5 | 57.1 | 54.7 | 54.7 | 53.6 | 51.6 | 50.3 | 47.2 |
| 风声 | 56.2 | 56.5 | 55.7 | 54.3 | 52.7 | 52.2 | 46.5 | 41.3 | 46.1 |
| 交谈声 | 61.2 | 65.6 | 76.8 | 72.3 | 79.4 | .5 | 92.2 | 75.5 | 73.5 |
| 猫叫 | 57.9 | 56.1 | 58.1 | 58.8 | 54.2 | 53.6 | 51.6 | 50.3 | 47.2 |
| 水龙头滴水 | 56.8 | 56.8 | 55.6 | 53.9 | 52.8 | 51.9 | 58.5 | 52.5 | 47.1 |
| 南门建筑施工 | 63.2 | 61.3 | 66.4 | .4 | 73.4 | 80.9 | 81.2 | 78.6 | 83.6 |
| 创业园车流 | 55.3 | 56.5 | 57.5 | 55.4 | 59.2 | 57.3 | 58.2 | 60.2 | 62.1 |
| 桃李排风扇 | 59.9 | 55.7 | 62.1 | 65.4 | 71.2 | 68.4 | 63.7 | 61.2 | 63.5 |
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