If you own Ableton Live (Standard or Suite), it comes with an "Audio to MIDI" feature. Right-click an audio track and select "Convert Harmony to New MIDI Track." It is not real-time like Dubler 2, but for post-production entertainment, it is a $0 add-on.
Unlike the original version, Dubler 2 can be calibrated to work with your own dynamic or condenser microphone . Dubler 2 Free Download HOT-
