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The variable pitch steam whistle at the New York Wire Company in York, Pennsylvania, was entered in the Guinness Book of World Records in 2002 as the loudest steam whistle on record at 124.1dBA from a set distance [clarify] used by Guinness. [84] The York whistle was also measured at 134.1 decibels from a distance of 23-feet. [12]
Train horns are sounded where a whistle post (marked with the letter "S" for siffler – "to whistle") is present. If the whistle post is labelled "J" (meaning jour – "day"), the horn is only to be sounded between 07:00 and 20:00. Horns must also be sounded when passing an oncoming train, and shortly before reaching the last car of the train.
One of two (front and rear) whistles on steam locomotive 60163 Tornado. A train whistle or air whistle (originally referred to as a train trumpet or air trumpet) is an audible signaling device on a steam or gas locomotive, used to warn that the train is approaching, and to communicate with rail workers.
A calliope (see below for pronunciation) is a North American musical instrument that produces sound by sending a gas, originally steam or, more recently, compressed air, through large whistles—originally locomotive whistles. A calliope is typically very loud. Even some small calliopes are audible for miles. There is no way to vary tone or ...
Spectrogram of the train sound. The Train is the name given to a sound recorded on March 5, 1997, on the Equatorial Pacific Ocean autonomous hydrophone array. The sound rises to a quasi-steady frequency. According to the NOAA, the origin of the sound is most likely generated by a very large iceberg grounded in the Ross Sea, near Cape Adare. [10
The Grand Ophicleide in the organ's Pedal Right division, behind the Right Stage chamber grille, speaking on 100" wind pressure, was recognized by Guinness World Records as the loudest organ stop in the world. It is described as having "a pure trumpet note of ear-splitting volume, more than six times the volume of the loudest locomotive whistle."
Also included in this organ are pipes operating on 100 inches of pressure, the Grand Ophicleide being the loudest and also most famous. The Guinness Book of World Records noted "a pure trumpet note of ear-splitting volume, six times louder than the loudest train whistle." However, these stops are actually well-refined and are not overpowering ...
The Grand Ophicleide in the Pedal Right Division, speaking on 100" wind pressure, is also recognised by Guinness World Records as the loudest organ stop in the world. It is described as having "a pure trumpet note of ear-splitting volume, more than six times the volume of the loudest locomotive whistle".