K7FJ - CW Morse Code KEYBOARD APP - CWMaestro - live demo

[Chuck aa0hw]

CWMaestro - A morse code cw sending keyboard program written for the DOS operating system decades ago...still working by using the DOSBOX program which has versions for windows, linux and mac. This keyboard software also has a logging program and adjustable cw timing settings, hot key creator, custom messages...etc...
CWMaestro is a very versatile program with many other features too...and has a very good CW MAESTRO DOCUMENTS FILE explaining all the features and how to use them.

if interested, please contact DON, via his address listed at QRZ.

NOTE: the audio output of the dosbox/audio tone, is a bit on the rough/harsh sounding side, so to take care of that issue, a cw regeneration method is used to "clone" the original tone, and re-create it by keying a special software sine wave synthesizer with adjustable pitch, volume, rise & fall times.

NOTE: the scope is showing the original audio tone from dosbox on the LEFT//TOP(GREEN) of both scopes...and the regenerated tone is shown on the RIGHT//BOTTOM(RED) of both scopes.

REAPER and 3 of its own plugins are used to do this.
PATH: audio output of dosbox goes to input of a Reaper track...the first effects vst plugin in the track is an audio to midi note output gate trigger...called REAGATE, that sends a MIDI NOTE OUTPUT that perfectly duplicates the length of the original cw element length input, when the input volume just goes over the threshold setting of REAGATE. The reagate send midi note output (78) feature tells the next plugin, REASYNTH, to send a sine wave output at a pitch of about 740 hertz. another reaper plugin called the APPLE 12 filter, is setup as a final bandpass filter to polish the sounds of the final cw audio output.

[Chuck aa0hw]

Here is another video demo'N CWMaestro sending QRQ CW at 80 wpm with extreme accuracy

CW MAESTRO uses DOSBOX in order to operate, so you can test this DOS CW KEYBOARD on MAC, LINUX, RASPBERRY PI, WINDOWS ...

i was surprised by how accurate the cw timing was at qrq speeds using CWMaestro...i increased the DOSBOX CPU CYCLES to 22,000 and also put DOSBOX in turbo mode using alt -F12...
it did not put any strain on my laptop quad core whatsoever and gave DOSBOX and CWMaestro the power it needed for constructing precision cw elements

NOTE: you can key your rig with this keyboard, since CWMaestro can activate the serial port pins "DTR" and "GROUND" - to key a simple circuit - to key your rig's CW JACK

http://www.arvm.org/exames/cw/cwprogramas.html
https://youtu.be/5MJ7wHdpTHg
http://qrqcwnet.ning.com/profiles/blogs/k7fj-cw-morse-code-keyboard...

NOTE: if you want the "FULL" VERSION of the exe file for CWMaestro, since the shareware version at the link above will not include some features, you will need to contact the creator of CWMaestro at his QRZ email listing for K7FJ