As of today, the ARA Audio Random Access interface extension is available to all software manufacturers. ARA allows for the improved integration of Melodyne and similar plug-ins into digital audio workstations (DAWs).
As an extension of existing plug-in interfaces such as VST or Audio Unit, ARA opens an additional channel of communication through which the DAW and plug-in are able to exchange information about the audio files and their placement in the song, as well as over their tempo, pitch, rhythm and more. The plug-in is “far closer to the action" in the DAW and therefore works considerably more efficiently; the DAW, for its part, is able to integrate the plug-in and take specific advantage of its strengths, as though the plug-in were part of the DAW itself...
I purchased the Melodyne program and would like to report that it lives up to its claim. I've take a guitar track and converted it to midi in Dimesion Pro and the altered the sound to that od a Pad intruument. Quite amazing actually. I do not know how to add the MP3 to this post.
Maybe I did it. This is the audio guitar track used to make a midi track . So, we have the same chords in both the audio, a guitar, and the midi track an organy pad. http://soundcloud.com/stros29/1st-audio-and-midi-sound