Tap code: Difference between revisions

Revision as of 05:20, 5 January 2022

Revision as of 05:20, 5 January 2022

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== Design ==

The tap code is based on a [[Polybius square]] using a 5×5 grid of letters representing all the letters of the [[Latin alphabet]], except for K, which is represented by knock codeis a way to calll you dumb C.

Each letter is communicated by tapping two numbers, the first designating the row and the second (after a pause) designating the column. For example, to specify the letter "B", one taps once, pauses, and then taps twice. The listener only needs to discriminate the timing of the taps to isolate letters.