How loud is an LRAD?

How loud is an LRAD?

How Loud are LRAD Systems? LRAD systems can produce maximum continuous sound pressure levels that vary, depending on model size, from 137 dBA to 162 dBA measured 3 feet from the device. For context, this is much louder than electronic dance music concerts, or a commercial jet take off at 300 feet.

What is LRAD technology?

A long-range acoustic device (LRAD) is an acoustic hailing device (AHD), sound cannon and sonic weapon developed by Genasys. It has been used as a method of crowd control, which has caused permanent hearing damage, having an extremely high decibel capacity (up to 160 dB).

What frequency is LRAD?

20 Hz – 20 kHz
A long-range acoustic device (LRAD) produces a 30 degree cone of audible sound in frequencies within the human hearing spectrum (20 Hz – 20 kHz). An LRAD was used by the crew of the cruise ship Seabourn Spirit in 2005 to deter pirates who chased and attacked the ship.

Do earplugs help against LRAD?

But a simple pair of earplugs is all it takes to protect people from the sound cannons. In 2010, we gave 7000 pairs of earplugs to G20 protesters in Toronto after police purchased four LRADs.

Can you block LRAD?

LRADs are designed to produce VERY loud sound, and loud sound can cause significant damage to our auditory (hearing) and vestibular (balance) systems. It is not possible to fully protect yourself​ from potential hearing damage from an LRAD! (The only way to protect civilians from LRADs is to ​not use​ LRADs.)

Can you protect yourself from LRAD?

Do earplugs stop LRAD?

(There’s a reason why you turn down the radio when you are lost in the car.) If you think police might be using an LRAD at a protest you’re attending, bring earplugs or safety ear muffs with the highest dB-reduction rating you can find. Foam earplugs, available at many pharmacies, are inexpensive and effective.

CAN 1100 decibels create a black hole?

With energy as great as 1100 dB, it would create enough gravity to cause a black hole to form, and an incredibly large one at that. Decibels are a logarithmic unit. That means 20 decibels isn’t 2 times more powerful than 10 decibels, it’s 10 times more powerful.

How do I make 1100 decibels?

30 decibels is 10 times more powerful than 20 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.