The most powerful sound in the world. The sound of the Krakatoa volcano eruption in 1883 was so intense that it had broken the ears of people 40 miles away, travelled around the world four times, and was clearly heard at 3000 miles away.
The hottest band in the world is the subject of a dispute in musical circles. Many bands claimed to be the most powerful, measuring this in a number of ways, including with decibel meters at concerts and technical analysis of the CDs on which their albums are published. Guinness World Records no longer celebrate “the hottest band in the world” for fear of losing hearing.
Strong sounds have long been known to affect the ears. In Norway, this has been proved for coppers meters since 1731. Also, acoustic instruments may pose a risk of hearing damage, especially with prolonged exercise in high-reverberation rooms.
However, the sound level and the risk increased with stronger amplifiers and loudspeakers and the volume at some concerts is well above the level that can cause such damage without ear protection. On average, 115 dBA (Decibel-A) can be risky even after 30 seconds, and an increase of 3 dB means doubling the sound level (an angle grinder at 1 m gives about 100 dBA, and the UK, Norway, etc.).
Forbidden workers to use it for more than a few minutes without ear protection). The sound level claimed for some of Manowar’s performance may cause ear damage almost immediately; the deafening phrase should be taken literally. The 2005 Workplace Noise Control Regulation has introduced safety limits for daily exposure to noise in the UK, such as 92 dBA as an average over 30 minutes.