OT, does anyone know of an app that will decode Morse code that I type in using a single key like the space bar, holding it down long for dah and pressing it quickly for dit? It should figure out the wpm I'm using on its own, like a human would, rather than making me specify it, or at least it should let me select an arbitrary (possibly fractional) wpm rather than offering only a fixed list like 15/20/25.