C********n
发帖数: 6682 | 1 还是看wiki的table吧
http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
zero pressure) >101,325 Pa >194 dB
Theoretical limit for undistorted sound at 1 atmosphere environmental
pressure 101,325 Pa ~194.094 dB
Theoretical limit based on Atmospheric pressure records, Min & Max western
Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
400 Pa 192.8–194.7 dB
Krakatoa explosion - unmeasured[5]
Stun grenades 6,000–20,000 Pa 170–180 dB
Rocket launch equipment acoustic tests ~4000 Pa ~165 dB
Simple open-ended thermoacoustic device[6] 12,619 Pa 176 dB
.30-06 rifle being fired 1 m to shooter's side 7,265 Pa 171 dB (peak)
M1 Garand rifle being fired at 1 m 5,023 Pa 168 dB
Jet engine at 30 m 632 Pa 150 dB
Threshold of pain 63.2 Pa 130 dB
Vuvuzela at 1 m 20 Pa 120 dB(A)[7]
Hearing damage (possible) 20 Pa approx. 120 dB
Jet engine at 100 m 6.32 – 200 Pa 110 – 140 dB
Jack hammer at 1 m 2 Pa approx. 100 dB
Traffic on a busy roadway at 10 m 2×101 – 6.32×101 Pa 80
– 90 dB
Hearing damage (over long-term exposure, need not be continuous) 0.
356 Pa 85 dB[8]
Passenger car at 10 m 2×102 – 2×101 Pa 60 – 80 dB
EPA identified level as the level necessary to protect the public from
hearing loss and other disruptive effects from noise, such as sleep
disturbance, stress-related problems, learning detriment, etc.
70 dB[9]
TV (set at home level) at 1 m 2×102 Pa approx. 60 dB
Handheld electric mixer 65 dB
Washing machine, dish washer 50-53 dB
Normal conversation at 1 m 2×103 – 2×102 Pa 40 – 60 dB
Very calm room 2×104 – 6.32×104 Pa 20 – 30 dB
Light leaf rustling, calm breathing 6.32×105 Pa 10 dB
Auditory threshold at 1 kHz 2×105 Pa 0 dB[8 | C********n
发帖数: 6682 | 2 刚刚用iphone上的sound level meter 测试了一下denon d7000的输出，
用我的笔记本直推d7000,最大音量下，最高分贝数(紧挨着)振膜, 164 dB,足可以致聋
了(
120分贝以上1秒即可以损伤听力)
所以带耳机听音乐一定要小心，一定要确认了音量再带上耳机
耳塞也一样
【在 C********n 的大作中提到】
: 还是看wiki的table吧
: http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
: Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
: zero pressure) >101,325 Pa >194 dB
: Theoretical limit for undistorted sound at 1 atmosphere environmental
: pressure 101,325 Pa ~194.094 dB
: Theoretical limit based on Atmospheric pressure records, Min & Max western
: Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
: 400 Pa 192.8–194.7 dB
: Krakatoa explosion - unmeasured[5]
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