If you are sat next to a 350db transmission
Unlikely to be at 350 dB - it's Logarithmic in the way it goes up. every 3 dB is DOUBLE the power, so 103 dB is twice the energy of 100 dB. 350 dB would turn you into a 'Pink Mist.' Even the LRAD Acoustic Weapon has a maximum continuous volume: 162dB (you don't want to hear that!)
120 dB = Threshold of discomfort
130 dB = Threshold of Pain
140 dB = Jet Aircraft (Full Power) at 50m
Assumption: The maximum sound pressure is 194 dBSPL that cannot be exceeded because the average air pressure of 101325 Pa. L = 20 × log (101325 / 0.00002) = 194 dB. RMS value is not peak value.
A typical false statement: "No noise levels can exceed 194 dB ever". Is the end at 194 dB? In addition to this perception threshold is discussed more often a physical limit to 194 dB. Sound is nothing more than a minor disturbance of air pressure and 194 dB is theoretically the same as the disturbance itself. It must be distorted. Even louder noise is possible, but much distorted". (Chaos).
This high sound pressure will break all measurement microphones and human beings are completely torn when they are close to the center of a nuclear explosion. No hearing protection (ear muffs or ear plugs) can help you there.
These madness sound levels will never be measured but only estimated or calculated.
But it is true. the S-92 is awesomely loud in the front office, especially with the door open in the SAR role.
