Morse Decoder is a simple to use Mac OS X app for translating Morse Code sounds into text, using the built-in microphone on your Mac, and including audio filtering and DSP signal analysis.
The Morse Code Decoder includes a built-in spectrogram to detect the audio frequency of the Morse Code tones, and an optional narrow band audio filter to help filter out background noise.
If the audio filter is enabled, the filter can be set for frequencies in the range of 400 to 1400 Hz. Click the spectrogram to set the audio filter to the desired frequency of signal. Checkboxes can be used to toggle squelch, AGC, filter and WPM modes.
It may take several initial and immediately preceding characters containing both dots and dashes before the WPM speed estimation starts to get close to the actual WPM. Background sounds and signal fading can interfere with detection and decoding.
The quality of detection depends on the signal level, signal to noise ratio, stability of the frequency and WPM speed, and keying "fist" quality.
NOTE: To buy Morse Decoder via the App Store an Apple account is required.
What's New in This Release: [ read full changelog ]
· Improvements to Auto-threshold, AGC and Squelch, plus additional bug fixes.
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