This is an experiment in using free VST PLUGINS to create a MIDI KEYED morse code sine wave oscillator(software). It is "keyed" by MIDI INPUT. You can also use this midi setup to regenerate morse code audio tones from another source. FLdigi is used in the video for this purpose. Using MIDI to key a software CPO, shows great promise, since the accuracy of midi input keying is far superior to using a SERIAL PORT for this kind of a setup, in regards to accurate timing. Even at extreme QRQ CW (200wpm), the MIDI keying proved to be virtually "perfect" in timing, accurately producing an "exact" replica of the original source of the MIDI input.
NOTE: - MIDI speed has been stated to be capable of 500 notes per second -