Those of you who wish for a more academic approach can scroll to the bottom to check out our initial research. Have some fun clicking around on our all-singing-and-dancing infographic below. Also, based in London, we don’t live close enough to Cape Canaveral to run around waving our own decibel meter…. Further investigation revealed that people forget to mention how far away they were when actually measuring the sounds. Indeed, most of our research showed that an aeroplane taking off is louder than a spaceship launch and surely this cannot be the case. We found so many different accounts of how loud the same sound was. However, we didn’t know where the ‘cut-off’ point should have been and we got somewhat carried away until we found the worlds loudest noise!ĭespite all of our in-depth research, noise levels and decibels are still controversial and subjective. We initially wanted to create an amazingly informative infographic to best explain how loud our air conditioners are. So we started to delve into the dark world of decibels to make the blinking things easier to understand. The findings from this exploratory study suggested that the Cold Air Drain®#1550 with each power unit may be significantly quieter than traditional wind machines (e.g., 90dB at 126ft1).Our initial attempt to explain how loud air conditioners are via an internet page was, in our opinion, a minor disaster.Īn indisputable fact is that 99.999% of us haven’t got a clue what a decibel either sounds like or looks like! Let’s be honest, we didn’t even know ourselves precisely what a decibel was! At a distance of 100ft the decibel levels for both the engine side and opposite the engine approximated the level of normal conversation (see Table 2). The decibel levels at 5ft from each power unit on the side opposite of the engine are comparable to the levels of a telephone dial tone (see Table 2). The decibel levels at 5ft from each power unit on the engine side are comparable to the level of city traffic from inside a car (see Table 2). The decibel level for each power unit tested was highest at 5ft from the engine for both the engine side and the side opposite the engine. As the distance from the Cold Air Drain® unit increased, the decibel level decreased. Actual decibel levels will likely be significantly lowered depending on soil type, ground cover, topography, obstructions (e.g., buildings, plants), temperature, and weather conditions.įindings: Table 1 shows the decibel levels by distance from the Cold Air Drain® #1550 operating with each power unit. Decibel readings were taken from 5ft to 150ft in 10ft increments. Decibel readings were taken using a Checkmate CM-130 on both the engine side and on the side directly opposite from the engine at a height of 5ft The ambient decibel level was measured at 5ft from the unit. The temperature was 58☏ at start of testing and had risen to 70☏ by the completion of the test, with 59% humidity (throughout the testing period). Each Cold Air Drain® model was tested in the same location at the facility on a level asphalt surface, with an aluminum building to the north of the testing area and a rail yard to the south of the testing area. Testing was conducted on Jbetween 7:00AM and 10:30AM. Methods: An exploratory study measuring the decibel levels for the Cold Air Drain® #1550 model with several available power options was conducted at the Shur Farms Frost Protection® manufacturing facility in Colton, California. For example, 70dB is 10 times as loud as 60dB. All readings used the A-weighted decibels (dBA). An increase of 10dB means the sound is 10 times as loud. An increase of 3dB is a doubling of the "strength" of the sound. You cannot add and subtract dB like ordinary numbers. General Decibel Information: The decibel (dB) is a logarithmic unit.
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