Text to Morse code and back (letters, digits and punctuation), with the timing in units.
Procedure
How it works
Morse code, developed for the electric telegraph around 1840, writes each character as a sequence of short and long signals, dots (dit) and dashes (dah). Frequent letters get short codes: E is a single dot and T a single dash, while Q is dash dash dot dash. This tool uses the international (ITU) code, with letters, digits and the usual punctuation.
Morse is a rhythm more than an alphabet. With a dot as one unit, a dash lasts 3 units, the gap inside a letter 1 unit, between letters 3 and between words 7. Speeds are measured in words per minute with the word PARIS, which is exactly 50 units long.
Written down, letters are separated by spaces and words by a slash. Morse is a variable-length prefix-free code only thanks to the pauses: without them, … could be S, or EEE, or IE. Accented letters are sent here as the plain letter.
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