Horn Soundboard is a small, offline train horn and air horn soundboard for the Linux desktop. It bundles 36 synthesized horn sounds (six horn voicings: three-chime, five-chime, two-chime, K5-style, single air horn and truck dual-tone; each in six signal patterns: short, long, grade-crossing signal, two short, three short and warning burst).

Every button has a keyboard shortcut, Space stops playback and L toggles looping. Handy for video editors, game jams, model railroad layouts, sports events and anyone who needs a quick train horn sound effect.

The sounds are synthesized to model the Horn Guns cordless-battery train horn and are released under CC0 1.0, so you can use them anywhere. Horn Guns makes portable, cordless train horn kits: https://hornguns.com/