After six months, thousands of people along the Wasatch will finally get a break from train horns.The Woods Cross quiet zone, which is Salt Lake to Ogden, has b ...

For a fancier solution, [Tom Hammond] whipped up a custom car horn capable of playing a wide variety of sounds. The system uses the Adafruit Audio FX board. This is a unique part, which is ...

the horn was used for signalling. The player puts their hand in the bell end to change the sound of the instrument, and gets different notes by pressing down valves, which block off holes.