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| title: Morse Code Timing Visualiser | |
| emoji: 📡 | |
| colorFrom: yellow | |
| colorTo: gray | |
| sdk: static | |
| pinned: false | |
| license: cc0-1.0 | |
| short_description: See dits, dahs and gaps on a timeline at any WPM | |
| tags: | |
| - morse-code | |
| - audio | |
| - signal-processing | |
| - education | |
| # Morse Code Timing Visualiser | |
| Type some text and see exactly how it is sent in Morse code: every dit, dah and gap on one timeline, measured in units and milliseconds. | |
| - Change the character speed (WPM) and the Farnsworth effective speed and watch the gaps stretch. | |
| - Play it as a tone, with a playhead that follows the timeline. | |
| - Compare the same word at three speeds, which shows why an audio decoder can't use fixed thresholds and has to estimate the unit length from the signal. | |
| Timing follows the PARIS standard (50 units per word, so one unit is 1200 / WPM milliseconds) and the ARRL formula for Farnsworth spacing. | |
| Everything runs in the browser in a single HTML file. No libraries, no data leaves the page. | |
| Made by [SimpleMorse](https://simplemorse.com/morse-code-audio-decoder), which has a free Morse audio decoder that reads from a file or the microphone. CC0: reuse it however you like. | |