Load the stereo WAV into the standalone VI Suite. Hit "Acoustic Scan." The suite listens for phase anomalies, reverb tails, and transient density. This takes about 30 seconds for a 3-minute song.
V.I Stereo to 5.1 Converter Suite by Steve Thomson - KVR Audio vi stereo to 51 converter suite exclusive
Due to its exclusive licensing model, the is not on Plugin Boutique or Sweetwater. It is sold directly through VI Audio Technologies (often requiring a consultation call to verify your studio setup). Load the stereo WAV into the standalone VI Suite