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  _____    _    _               _____     ____    
 /  ___|| | || | ||   ____     |  ___||  |  _ \\  
| // __   | || | ||  |    \\   | ||__    | |_| || 
| \\_\ || | \\_/ ||  | [] ||   | ||__    | .  //  
 \____//   \____//   |  __//   |_____||  |_|\_\\  
  `---`     `---`    |_|`-`    `-----`   `-` --`  
                     `-`

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Text this: Vertical Directivity Pattern of Train Noise