How loud can a human yell?

Human screams can be quite loud, possibly exceeding 100 dB (as of March 2019, the world record is 129 dB!) —but you probably want to avoid that because screams that loud can hurt your ears! You should also have found sound levels drop off quickly as you get farther from the source.
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How loud is the loudest human voice?

'Quietttt!!!

What was the sound? No other than their teacher, who just happens to have the world's loudest shout. Miss Flanagan entered the record books back in 1994 with a thunderous rendition of 'quiet!' The shout clocked up an earth-shattering 121.7 decibels, setting a world record.
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Why is 194 dB the loudest sound possible?

A note on the loudest possible sound in air

A sound of 194 dB has a pressure deviation of 101.325 kPa, which is ambient pressure at sea level, at 0 degrees Celsius (32 Fahrenheit). Essentially, at 194 dB, the waves are creating a complete vacuum between themselves.
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Can you make a 1100 dB sound?

It's not possible as a continuous sound in air because the maximum overpressure is double atmospheric, with the troughs a vacuum, which works out at 194 decibels.
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How loud can a human take?

If we're talking about sounds within the human hearing frequency range (between 20 and 20,000 Hz), high-intensity sounds above 150 decibels can burst your eardrums, while sounds above 185 dB can impact your inner organs and cause death.
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The Loudest Person at Smosh is...



What sound is 200 decibels?

A sperm whale's click is 200 decibels, the unit used to measure the intensity of a sound, said Jennifer Miksis-Olds, associate professor of acoustics at Penn State. To give you a sense of the scale, the loudest sound NASA has ever recorded was the first stage of the Saturn V rocket, which clocked in at 204 decibels.
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How loud is the sun?

One heliophysicist crunched the numbers and estimates the noise would be around 110 decibels, or about the same volume as speakers at a rock concert.
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How loud is a nuke?

Listen to this. A nuclear bomb. Decibel meters set 250 feet away from test sites peaked at 210 decibels. The sound alone is enough to kill a human being, so if the bomb doesn't kill you, the noise will.
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How loud is a black hole?

With a period of oscillation of 10 million years, the sound waves were acoustically equivalent to a B-flat 57 octaves below middle C, a tone that the black hole has apparently been holding for the last two billion years.
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How loud is a supernova?

Sounds—which are simply pressure variations in a medium such as air or water—can't propagate in the vacuum of space, so the roiling surface of a star would make an impression on the eyes, but not the ears. A supernova would sound like 10 octillion two-megaton nuclear bombs exploding.
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How loud is 1100 decibels?

40 decibels is 10 times more powerful than 30 decibels. Each time the decibel number goes up by 10, the power of the sound is multiplied by 10. The number 1100 is like starting with 10 decibels, and adding 10 on 109 times. That means 1100 is 10109 times more powerful than 10 decibels.
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What happens if you make a sound louder than 1100 dB?

"If you could produce a sound louder than 1100 dB, you would create a black hole, and ultimately destroy the galaxy".
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How many decibels is a gunshot?

How loud is a gunshot? Decibel levels for firearms average between 140 and 165 dB.
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What was the loudest yell ever?

The loudest shout by an individual was achieved by Annalisa Wray (UK) back in 1994. She shouted the word 'quiet' at 121.7 dBA.
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Who has the strongest voice ever?

Irish teacher Annalisa Flanagan holds the world's loudest shouting record with 121 decibels (dB), but there was no previous singing record. The lively Bulgarian from the southern city of Plovdiv faced a series of tough requirements.
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What is the loudest word ever screamed?

The current shouting record has been held by Annalisa Wray since 1994. At the Citybus Challenge in Belfast, Northern Ireland, she ironically yelled the word "quiet" to a level of 121.7 dBA. That's almost as loud as a jet engine! Classroom assistant Jill Drake holds the scream title at an ear-piercing 129 dBA.
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How loud is space?

Studies on a single space shuttle flight found temporary partial deafness in the crew. Inside the International Space Station (ISS) it is so loud that some fear for the astronauts' hearing. At its worst, the noise level in sleep stations was about the same as in a very noisy office (65 decibels).
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Can sound destroy the universe?

It may be possible to destroy everything with a loud enough sound. NASA estimates the mass energy of the universe at 4x1069 joules. But that number that is considerably smaller than the energy created by 1,100 decibels of sound.
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Did NASA record a black hole?

NASA has just released an audio recording from inside a black hole - the largest in the universe. From inside the Perseus black hole, listeners are invited to listen to the ripples of sound remastered for the human ear by NASA, which is also said to feature the 'lowest note in the universe'.
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What does a nuke smell like?

Other bombs smell like the materials which cause the explosion, e.g., napalm smells like gasoline and tnt smells like gun powder.
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Is Hiroshima still radioactive?

Is there still radiation in Hiroshima and Nagasaki? The radiation in Hiroshima and Nagasaki today is on a par with the extremely low levels of background radiation (natural radioactivity) present anywhere on Earth. It has no effect on human bodies.
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How loud is a plane taking off?

A study of noise on Airbus A321 aircraft reported levels of 60-65 decibels (dBA) before takeoff; 80-85 dBA during flight; and 75-80 dBA during landing. The outside of aircraft engines (around 140 dB at takeoff) and conditions on other aircraft may have higher or lower noise levels.
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Do black holes make sound?

For the first time in history, earthlings can hear what a black hole sounds like: a low-pitched groaning, as if a very creaky heavy door was being opened again and again.
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How loud is a shock wave?

As mentioned previously, shock waves exist that exceed 2 atmospheres, and as a result have a higher dB level than 194 dB, but not as a sustained sound. Such shock and impact sound levels are usually very violent and were reported previously.
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