1 · Start with a recording
Choose an audio file or try a built-in example. If your signal is playing through a speaker, switch to the microphone input.
Processed on your device
Morse Code Audio Translator
Translate Morse code audio from noisy files or video soundtracks. Use this audio Morse code translator locally, then replay the original to check the text.
Processed on your deviceNo sign-upAudio files · Local processing
Drop your audio or video here
or choose a file to get started
MP3 · WAV · M4A · OGG · FLAC / MP4 · MOV · WebM · MKV
Up to 30 minutes · 200 MB. Files over 2 minutes open the first 60 seconds as a preview; you can pick other parts afterwards. Format support depends on your browser.
You can also paste a file with ⌘ / Ctrl + V
No recording? Try an exampleSynthesized Morse; music is credited below. Speech is synthesized.
Music excerpt: “Monkeys Spinning Monkeys” by Kevin MacLeod, cropped and mixed with synthesized Morse. incompetech.com · CC BY 4.0
Audio, video and images are processed in your browser. Your files are not uploaded.
2 · Read the first interpretation
Look for groups of short and long tones. The initial result gives you a starting point; an unfamiliar letter may need another listen.
3 · Keep a checked result
Listen to the selected passage, or replay individual characters where timing is available. Correct what you can verify, then copy the text or download the result. Keep the original recording for comparison.
Morse code: letters, numbers and signals
Morse code represents characters with short dots and longer dashes. International Morse uses a separate group for each letter or digit, with pauses marking the boundaries. Use the alphabet and number charts below to look up a character, or choose the text translator and generator to create a message before practicing with audio.
Choose the tool for the signal you have
A saved sound recording belongs here. Use the video decoder for a local clip or screen recording, the image translator for printed dots and dashes, or the text translator when you already have written Morse. A microphone listener is useful when the source cannot be imported as a file.
What audio translation can tell you
The decoder interprets tone timing as International Morse letters, numbers and supported symbols. It does not translate spoken language or explain the meaning of a code word. Music, overlapping signals and irregular spacing can change the result, so a readable sentence alone is not proof of a correct transcription.
First check: a known message
.... . .-.. .-.. --- / .-- --- .-. .-.. -..This is HELLO WORLD in written Morse. Try the clean built-in example and compare the letter groups. Then try a noisy example to see why a first result may need review. The examples are demonstrations, not an accuracy benchmark.
Inspect a difficult recording with the audio decoder →Questions before you start
Do I need to know Morse code first?
No. Start with a known sample and use the text beside the observed marks. You can replay available character intervals before deciding whether to accept or edit a letter.
Are my recordings uploaded?
The decoding and playback run on your device. The application and optional model need to be downloaded, but importing a recording does not upload it to a transcription server.
Which audio format should I use?
Common inputs include WAV, MP3 and M4A, subject to browser codec support. If a file cannot be read, export it as PCM WAV in your own audio editor and try again.
Morse code reference
Look up letters, numbers and familiar phrases, or generate a practice signal.