Decode Morse code from microphone input. Practice sending codes and check accuracy. Adjust signal strength and speed for better decoding. Sync with 5-10 characters for accurate timing.
by koji kamogawa★ 5.06 ratingsEducationFreeData updated 2026-09-06
Learn and practice Morse Code by touching the screen to generate tones. Adjust tone frequency from 300 Hz to 1200 Hz and control volume. Send dots with short touches and dashes with longer holds.
Udio test tones with adjustable frequency and amplitude. Create sine waves from 20 Hz to 20 kHz. Add white noise, pink noise, and frequency sweeps via in- purchases. Support square, sawtooth, and triangle waves on compatible devices.
Provides a comprehensive list of international , including letters, numbers, and substitutes. View detailed descriptions of each flag. Take custom quizzes to test knowledge. Includes flashlight morse code examples and a minimalist design.
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Turn on flashlight instantly with bright illumination. Use camera flash for additional light. Send Morse Code messages in real time. Locate objects in the dark or navigate by lighting pathways.
Support multiple input methods including Easy English, Emoji, Morse code, X-SAMPA, Unicode, Swift Kana, Simplified Greek, Manchu/Hebrew, Mandarin (mountain head enhanced), and various pinyin and double-pinyin schemes.
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Practice code with adjustable speed settings and customizable exercises. Generate random characters for timed drills. Track progress with accuracy and speed metrics. Share results and compare with other users. Sync sessions across devices.
Learn and practice code with modes for beginners and professionals. Practice listening comprehension and alphabet character recognition. Create text archives for classroom dictation exercises. Transmit LED-coded messages for encrypted communication.
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Decode code audio into text. Display audio spectrum and tone amplitude graphs. Adjust narrow band audio filter between 400-1600 Hz. Set WPM speed for dot/dash detection. Configure tone frequency thresholds. Export decoded text.