Linux Morse Code Decoding Software

demorse:
demorse is a Morse code decoding application for the console. It detects the receiver's audio output via the computer's sound card, using simple dsp techniques, and then decodes the mark/space sequence into characters which are printed on the console screen. demorse has some tolerance to bad operator "fists" and noise or interference, however it could be improved by using more sophisticate audio signal detection. demorse can measure and adapt to the Morse transmission's speed within the range of 10-30 words per minute, the default starting speed being set to about 20 wpm.

Manual Read more details on-line or download demorse's manual.

PackageDownload source package of demorse.

xdemorse:
xdemorse is a GTK+ based Morse code signal decoder. It has an integer-arithmetic FFT-derived "waterfall" display of the incoming audio signal's spectrum, as well as a 'scope-like display of the audio detector's output and status of the mark/space discriminator ("slicer"). xdemorse also has CAT for the FT-847 and FT857 and this can be used to net the receiver's frequency to the incoming signal, by clicking near its trace in the waterfall display.

Manual Read more details on-line or download xdemorse's manual.

PackageDownload source package of xdemorse.

xdemorse This is xdemorse decoding the ARRL's Morse code bulleting from W1AW, on a frequency of 7047.5 kHz at around 0345Z on August 21, 2010. Reception was done at my home (KM64MR) in Limassol, Cyprus (5B4 land). Despite the long distance and the QRN and QSB, xdemorse did a fair job of decoding the 18 WPM Morse code bulletin. Signal strength was around S5.