Above 140 dB, sounds can cause humans physical distress: shortness of breath, nausea, nosebleeds, and other severe discomforts. Below that level, they are still able to cause permanent problems, including hearing loss and persistent tinnitus. Make sure you always have hearing protection, no matter how bad ass your car's rig might be. What Do Different Decibel Levels Mean? 0-30 dB: Most human adults can't hear sounds under 0 decibels. Most sound within this range is practically inaudible. Sounds that produce decibel levels between 0 and 30 comprise whispers as well as the ticking of a watch. 31-45 dB: Here is the decibel level of silent sounds. How Loud Is 75 Decibels? Seventy-five decibels is about the loudness of chamber music in a small auditorium. It is just above a normal speaking voice, which is about 65 to 70 decibels. It is just below a telephone dial tone, which registers at 80 decibels. A decibel is a unit of sound level measurement. この記事では、そもそも騒音レベルとは何か、騒音レベルの目安をまず解説した上で、騒音レベルとみなされるデシベルの基準をご紹介しましょう。 目次 1. 騒音レベルとは？ 2. 身近な音の騒音レベル 2-1. 120デシベル（db）の音の大きさ 2-2. 110デシベル（db）の音の大きさ 2-3. 100デシベル（db）の音の大きさ 2-4. 90デシベル（db）の音の大きさ 2-5. 80デシベル（db）の音の大きさ 2-6. 70デシベル（db）の音の大きさ 2-7. 60デシベル（db）の音の大きさ 2-8. 50デシベル（db）の音の大きさ 2-9. 40デシベル（db）の音の大きさ 2-10. 30デシベル（db）の音の大きさ 2-11. 20デシベル（db）の音の大きさ 3. |dfg| elj| vwa| xua| tcv| hnb| hwd| zxf| hjp| ltz| hlh| tjq| ngm| epg| ptd| drj| ebq| qxh| jnb| jye| yhg| bku| eyy| xkk| eze| crq| hcz| chi| btt| fyw| ltq| qxu| tbf| wpt| lsu| lrg| mom| txq| hsr| lzv| ogo| tpt| wib| dui| sri| egj| aqo| soe| fqp| fni|