This software is part of a hardware project for ham radio. It's a Morse keyer designed to use the human voice as a trigger for a transmitter in CW mode.
The full write up is available at http://kb9rlw.blogspot.com/
The project video is available at https://youtu.be/GpDYJO81-LE