It may take several initial preceding Morse Code characters containing both dots and dashes before the WPM speed estimation starts to lock on to the actual WPM. The quality of Morse code decoding depends on the signal level, signal-to-noise ratio, stability of the frequency and WPM speed, keying "fist" quality, and whether you have configured the app properly for the signal. There is a High Speed WPM Mode which may work better for code speeds in the range of 40 to 80 WPM. The Morse code WPM (words per minute) detection speed is automatically adaptive from about 8 to 40 WPM, and can be locked to the current estimated WPM dot speed (WPM lock icon locked). Other user configurable settings include the WPM dot/dash speed used for Morse code detection, a noise threshold level, and whether Farnsworth timing is to be used for detecting spaces between characters. The audio filter can be set for tone frequencies in the range of 400 to 1600 Hz. The HotPaw Morse Code Decoder can decode the sounds of Morse Code characters, and transcribe the results into text.īoth an audio spectrum graph and a tone amplitude graph are displayed to assist with setting a narrow band audio filter. This is a macOS version of the HotPaw Morse Decoder app for iPhone and iPad. Both an audio spectrum graph and a tone amplitude graph. The HotPaw Morse Code Decoder can decode the sounds of Morse Code characters, and transcribe the results into text.
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