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The Nathan model M5 pictured is a 5 chime horn. A train horn is an air horn used as an audible warning device on diesel and electric-powered trains. Its primary purpose is to alert persons and animals to an oncoming train, especially when approaching a level crossing. They are often extremely loud, allowing them to be heard from great distances.
BRAAAM is a loud, low sound typically produced using real or synthesized brass instruments.One of the best-known examples also involved a prepared piano.Seth Abramovitch of The Hollywood Reporter described the sound as "like a foghorn on steroids" which is "meant to impart a sense of apocalyptic momentousness". [3]
Spectrogram of the train sound. The Sea 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
Quiet zones along the Brightline corridor through the Treasure Coast could silence the train horns local residents have been hearing from morning until night since the higher-speed railroad began ...
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Several distinct sounds are created by various parts of the train, such as engines, traction motors, brakes, and the wheels rolling on the rails. Roughness and irregularities on the wheel and rail surfaces are a source of noise and vibration. Rail joints and squats on the rail cause a familiar "clickety-clack" sound as train wheels roll over them.
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In rail transport, a wayside horn is an audible signal used at level crossings. They can be used in place of, or in addition to, the locomotive 's horn as the train approaches the crossing. They are often used in special railroad "quiet zones" in the United States , where the engineer is not required to sound the locomotive's horn at a crossing.