Acid Morse Trainer

Back in 2004 I wrote a very simple CW trainer which later I gave away as freeware. Here's the feature list :
  • 4 waveforms to choose from
  • variable speed ( 40 - 300 LPM )
  • variable tone ( 100 - 1000 Hz )
  • allows combinations of chars for specific training
  • resonant low pass filter ( variable cutoff and resonance )
  • variable volume
  • basic AR volume envelope shaping


That's how the output screen looks like :



You can get the file here.