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Morse Code Audio Player

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OUTPUT

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Guide

Morse Code Audio Player

Type any text and listen to it played as real Morse code in your browser. Adjust the speed and tone to match practice exam standards or vintage CW radio gear, then download the result as a WAV file you can use offline.

How to Use

Type or paste any letters, numbers, or punctuation in the text box.
Set the speed in words per minute (PARIS timing) and the tone frequency in Hz.
Press Play to hear the Morse audio and watch the visual timeline highlight each dot and dash.
Press WAV to download the audio as a 16-bit mono WAV file.

Features

Real audio playback – generated live with the Web Audio API, no external libraries.
Adjustable WPM (5–40) – matches amateur radio practice ranges.
Adjustable tone (300–1200 Hz) – tune to the pitch you find clearest.
Visual dot/dash timeline – follows the playback symbol by symbol.
WAV download – save a clean 8 kHz mono WAV for offline practice.
ITU character set – letters, digits, and standard punctuation supported.

 FAQ

What is Morse code?

Morse code is a method of encoding text characters as sequences of two signal durations, traditionally called dots and dashes. It was developed in the 1830s for telegraph systems and is still used today in amateur radio, aviation, and emergency signalling because it works reliably over noisy channels with minimal bandwidth.
What does WPM mean in Morse code?

WPM stands for words per minute. The standard reference word is PARIS, which is exactly 50 dot units long including spacing. At 20 WPM, that means 1000 dot units per minute, or a single dot duration of 60 milliseconds. The PARIS standard keeps speed measurements consistent across operators and equipment.
What tone frequency is used for Morse code on the radio?

Most CW (continuous wave) operators prefer a sidetone in the 500–800 Hz range. Lower tones are easier on the ears during long sessions, while higher tones can be easier to pick out in a crowded band. Morse practice oscillators commonly default to 600 or 700 Hz for that reason.
Why is the SOS distress signal three dots, three dashes, three dots?

SOS was chosen in 1906 because the pattern ···———··· is short, unmistakable, and contains no letter spacing, so it cannot be confused with normal traffic. The letters S and O were not picked for any meaning – the pattern itself was the design goal.