TheExtractor from TazMan is a Windows PC VST plug-in that can extract audio information in real-time and convert it into MIDI message.
It can control of up to four parameters simultaneously from a single audio source. Features include two different pitch detection algorithms, note and beat transient detectors for automatic generation of MIDI notes, and input gate for tracking specific input signals.
For more information, visit www.tazman-audio.co.uk.