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1分贝刚能听到的声音15分贝以下感觉安静30分贝耳语的音量大小40分贝冰箱的嗡嗡声60分贝正常交谈的声音70分贝相当于走在闹市区85分贝汽车穿梭的马路上95分贝摩托车启动声音100分贝装修电钻的声音110分贝卡拉OK、大声播放MP3的声音120分贝飞机起飞时的声音
1 dB Sounds just heard 15 dB or less Quiet 30 dB Whisper volume 40 dB Refrigerator hum 60 dB Normal conversation sound 70 dB Equivalent to walking in the downtown area 85 dB Car shuttle on the road 95 dB Motorcycle Car start sound 100 decibels decoration drill sound 110 deca Kara OK, loudly play MP3 sound 120 decibels Aircraft takeoff sound