Fruity Peak controller can be used as an effect to convert audio sample values into MIDI values, by dividing the range of sample values by 128, and assigning a value equal to one MIDI unit out of the the audio bit-depth sample range.  ie. a 16-bit audio stream would have a sample value range of 0-65536.  If the value fell with in the first 128th part of the range (0-511) the MIDI value would return 1.