Required Voice Levels at Distance A normal voice level is between 60-70 dB. A raised voice is between 65-75 dB. A very loud voice is between 75-85 dB. A shouting voice is above 85 dB.
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!
Sounds above 90 dB can lead to chronic hearing damage if people are exposed to them every day or all the time. Hearing becomes uncomfortable if the sound pressure level is above 110 decibels (threshold of discomfort), and it becomes painful above 130 decibels (threshold of pain).
Sounds above 150 dB have the potential of causing life-threatening issues. Sounds between 170-200 dB are so intense that they can cause lethal issues like pulmonary embolisms, pulmonary contusions, or even burst lungs.
Apparently, a sound of 1,100 decibels would create so much energy, it would act as a immensely high quantity of mass. This would, in turn, create enough gravity to form an extremely large black hole!
80 decibels is fairly loud. It's equivalent to the noise of a busy downtown street. Being loud, it is a noise level that may harm your hearing if you are exposed to it for longer periods (more than 8-10 hours/day). There's no better way to understand how loud 80 dB is than to take examples from everyday life.
First 1000 dB is a physical impossibility, anything over 150dB would burst your eardrums, anything over 194dB is no longer sound and anything over 200dB is fatal.
On the morning of 27 August 1883, on the Indonesian island of Krakatoa, a volcanic eruption produced what scientists believe to be the loudest sound produced on the surface of the planet, estimated at 310 decibels (dB).
A sonic black hole, sometimes called a dumb hole or acoustic black hole, is a phenomenon in which phonons (sound perturbations) are unable to escape from a region of a fluid that is flowing more quickly than the local speed of sound.
120 – 140 decibels: Such as, a rock concert, auto racing, or a hammer pounding a nail. 125 – 155 decibels: Like, firecrackers or fireworks, or a jet engine. 170 – 190 decibels: For example, a shot gun blast or a rocket lift off.
As a basic guide, venues with sound limiters set at 95 decibels or preferably higher are pretty live music-friendly and won't hamper a live wedding band or entertainer too much. For example, our rock and indie wedding band League of Gentlemen (above) perform within 95 decibels or higher all the time.
The effective distance of a 100 dB(A) sounder in a very noisy environment is 1.8m, the distance for a 120 dB(A) sounder is approx 18m (10 times the distance).
At 194 dB, the energy in the sound waves starts distorting and they create a complete vacuum between themselves. The sound is no longer moving through the air, but is in fact pushing the air along with it, forming a pressurized wall of moving air.
150 decibels is usually considered enough to burst your eardrums, but the threshold for death is usually pegged at around 185-200 dB.
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. Fun fact!
Of course, neighbors don't want to deal with neighbors playing music at a volume that harms hearing. Limits are usually around 60 dB, though some locations permit volume at 70 dB.
A whisper is about 30 dB, normal conversation is about 60 dB and conversations can reach 85-90 db with a tiled floor venue with 80-100 guests. A motorcycle engine running is about 95 dB…. so 90 db for a party is quiet and below practical levels.
Compared to other moderate or loud dB levels (of up to 85 decibels), 100 decibels is considered very loud and dangerous to human hearing. When measuring a sound, a 10 dB increase equals a 10-time increase in the intensity of the sound.
How loud is a gunshot? Decibel levels for firearms average between 140 and 165 dB.
First 1000 dB is a physical impossibility, anything over 150dB would burst your eardrums, anything over 194dB is no longer sound and anything over 200dB is fatal.
A sound of 500 decibels is not physically possible. includes a table relating sound in decibels to power in Watts. A Saturn V rocket emits a sound of 200 dB, or 100 million Watts. An increase of 10 dB corresponds to a factor of 10 in power, so 210 dB is 1 billion Watts.
Jim Fuller. The loudest sound in the universe definitely comes from black hole mergers. In this case the “sound” comes out in gravitational waves and not ordinary sound waves.