The continuous noise level of a jet engine is 130 dB and the sound pressure at which it begins to be noticeable for humans is 120 dB.
The difference in noise levels between these two levels is extremely small — just one-tenth of a decibel or 0.1 of a meter. It’s important to note that the volume of a jet engine doesn’t change over its 100,000-hour lifetime. In fact, the sound intensity stays about the same for that long as well.
That means that roughly every 100,000 hours, you could hear an engine passing by your bedroom window if you were sleeping at night. And if you sleep through it (which I don’t recommend), then in a few hours or days you will be able to hear it again (though not as loudly).
You don’t have to worry about being awake when this happens; engines are so powerful they will just continue on past your window until they burn out completely.
130 dB is as loud as, for example, a jet engine take off.
This is a fairly common question. In this topic, I will discuss the impact of 130 dB on your hearing and how loud it is.
You can hear sound clearly at a frequency of about 20 Hz. A sound source at 20 Hz is at a distance of about one meter to you. Around this distance, the human ear will not detect any significant difference in sound level. However, if you are standing closer to the source, these sounds will be perceived as louder if you are exposed to them for longer periods of time (i.e., imagine your ears as having been “turned up”).
If you have had any experience with music or listening to radio or TV, then it’s likely that you have heard sounds which are louder than those normal background noises which are already a prominent part of the environment around you. For example, in the car or in a quiet room, some people may hear background noise such as traffic sounds or other people talking while others may only hear music playing out loud; however no one can hear what is playing out loud unless they are right next to it (if they don’t move away).
130 decibels is approximately equivalent to the sound level emitted by a jet engine taking off from an airport at an elevation of 50 m (164 feet). At this distance from the noise source, there should be no audible difference between the two types of noise because neither type of noise has much energy when compared against each other (at 70 m (230 feet) from the noise source), but as someone gets closer towards it, there should be noticeable differences due to attenuation and electricity currents present between different types of electrical cables and wires in buildings and automobiles .
130 dB is an extremely intense noise level that can instantly damage your hearing.
It is difficult for most people to imagine how loud a sound is. They might assume a sound level of 130 decibels is too loud to register in the ears of an average person, but this is not the case. 130 decibels is as loud as, for example, a jet engine take off. It is an extremely intense noise level that can instantly damage your hearing.
When you hear 130 dB, it is important to note that it’s not actually louder than a jet engine at takeoff (for comparison sake). The noise source used in this experiment was a fan and the aircraft was 50 feet away.
The fan was used because it produces much more sound pressure than several other sources of sound such as cars and airplanes, which are used in many commercial jet engines tests.
Airplane engines do produce high-intensity sounds but they don’t cause hearing damage compared with other types of noise sources such as explosions.
The best way to understand how loud 130 dB really can be is to spend some time with a friend who works on big construction projects. Let them know that they will have to work on a very long shift without any break at all if they want to keep their hearing intact.
After that, let them try listening to an experiment where you turn up the volume on their computer speakers by using headphones rather than speakers because both are equally loud sources of sound (although headphones are quieter than speakers).
It should be quite easy for them to determine just how much louder their computer speakers are than their friends’ headphones (though your friends’ headphones may seem more comfortable).
But if they simply connect their phones or similar devices into their computer speakers, then listen at full blast with no distractions, then in about 20 minutes they will not only be able to hear clearly, but also feel what it’s like when someone pushes on your eardrums with full force!
How do humans survive sound blasts at such high levels?
The intensity of sound at 130 decibels can instantly damage your hearing. It is the sonic equivalent of a jet engine take off. For most people, 130 decibels is enough to cause temporary deafness .
The human ear can only physically tolerate sounds up to 120 dB
In the world of sound, the human ear is not an instrument. It is an organ. As such, it can only hear sounds that are at or below a certain volume.
The human ear works differently from other organs when it comes to listening to sounds. If you ever heard a very loud opera singer your ears would probably be ringing for days.
That’s because the maximum level that can be reached by our ears is about 90 dB (decibels). The blood vessels in our ears dilate and blood rushes into them to help the organs work more efficiently. This increase in blood flow ensures there is more oxygenated blood flowing through the ear canal and around the eardrum, which is why we hear better at higher volumes!