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发表于 2015-10-26 10:02
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来自 日本
Garbage disposal, dishwasher, average factory, freight train (at 15 meters). Car wash at 20 ft (89 dB); propeller plane flyover at 1000 ft (88 dB); diesel truck 40 mph at 50 ft (84 dB); diesel train at 45 mph at 100 ft (83 dB). Food blender (88 dB); milling machine (85 dB); garbage disposal (80 dB).
80
2 times as loud as 70 dB.
Possible damage in 8 hr exposurey.
连续处于80分贝环境八小时可能会造成听力障碍与损伤
另外参见
The effects of noise on hearing vary among people. Some people's ears are more sensitive to loud sounds, especially at certain frequencies. (Frequency means how low or high a tone is.) But any sound that is loud enough and lasts long enough can damage hearing and lead to hearing loss.
In general, sounds above 85 are harmful, depending on how long and how often you are exposed to them and whether you wear hearing protection, such as earplug.
大意是有些人耳朵很敏感灵敏,对低音量捕捉就很精确,有些人耳朵则天生相反,所以体感是毫无疑问不一样的
嘛,这和有些人不怎么锻炼跑得也很快,随便读读书就考第一,每天看电脑十二个小时都不近视是类似道理
虽然都是两只手两只腿,但人的基因差别其实还是很大的,自己把握自己情况吧
其实关于这个我咨询过医生,平时头戴耳机听音在80db左右是什么情况,也如上文所说,就算每个人耳朵灵敏度不一样,80-85db左右乃至上方其实对大部分大部分人是有害级的(当然大千世界hiv自愈的案例都有,长时间暴露120db能毫发未伤的耳朵肯定也是有的,大概)
太多就不说了不然说我制造恐慌,总之控制住绝对别让自己往90,100db接着前进吧
想想世界上还有这么多现在还买不起的hiend器材,等买得起了耳朵却听不出区别了多没劲对吧lol |
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