Convert plain text to International Morse Code (ITU-R M.1677-1) and decode incoming radiotelegraph signals with the Browser-Based Universal Morse Code & Transmission Suite on RiazHub.com. Powered by high-performance client-side Web Audio API synthesis and synchronized optical strobe lighting, this tool allows users to encode text, decode Morse code, customize transmission speeds from 5 to 40 WPM (Paris Standard), adjust audio pitch frequencies (300 Hz–1000 Hz), choose between Sine, Square, and Triangle waveforms, and export studio-quality 16-bit PCM WAV audio files directly in the browser with zero server data transfer and 100% privacy.
ITU-R M.1677 Telecommunications Standard
Universal Text to Morse Code & Audio Transmission Suite
Convert plain text to International Morse Code and decode signals with real-time Web Audio sound synthesis, visual strobe flashers, and precision WPM timing controls.
Quick Presets:
Dot & Dash Elements • —
0 Dots | 0 Dashes
Ratio: 1:3 ITU Calibrated
Audio Duration ⏱
0.0s
@ 20 WPM (Paris Standard)
Speed & Pitch 🎚
20 WPM • 600 Hz
Sine Wave Synthesis
Conversion Mode 🔄
Text ➔ Morse
Bidirectional Engine
1
Drag & drop file (.txt, .md, .log, .csv) or click to browse
Audio Synthesizer & Timing Engine
▼
Transmission Speed (WPM):20 WPM
Tone Frequency (Pitch):600 Hz
Sync Flash
Notation & Separator Symbols
▼
Transmission Studio
Idle • Ready to Transmit
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ITU International Morse Code Alphabet & Prosigns Reference Chart
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Click any character to preview its authentic audio tone transmission.
Developed in the 1830s by Samuel Morse and Alfred Vail for the electrical telegraph, Morse code revolutionized long-distance telecommunications. It was later standardized under the International Telecommunication Union recommendation ITU-R M.1677-1 to harmonize telegraphic, maritime, and aviation signaling across global borders.
2. The Mathematical "Paris Standard" WPM Timing Calibration▼
Transmission speed is calibrated using the standard international reference word "PARIS " (which equals exactly 50 dot time units). The duration of a single unit (1 dot) is computed as:
Duration of 1 Dot Unit (ms) = 1200 / WPM
Under standard ITU ratios: 1 Dash = 3 Dots; Intracharacter gap = 1 Dot; Intercharacter gap = 3 Dots; Interword gap = 7 Dots.
3. Maritime Distress Signals (SOS) & Radio Etiquette▼
The famous SOS signal (··· --- ···) was adopted at the 1906 Berlin International Radiotelegraphic Convention. Transmitted as a continuous prosign without inter-letter pauses, its unmistakable rhythm ensures instant recognition through severe atmospheric noise and radio static.
All plain text processing, Morse signal compilation, Web Audio API synthesis, and WAV binary encoding happen 100% locally inside your web browser. No messages, keystrokes, or generated audio files are ever transmitted to any remote server.
