AFAIK no major DAW like Cubase or Nuendo has implemented such a tool.
I think it could be useful as it shows different things at once.
Possible use cases for example:
- Showing phase relationship per frequency band, not just overall.
- Detects band-specific phase cancellations (e.g., bass vanishing in mono).
- Monitors mono compatibility in problematic ranges.
- Reveals stereo width issues in individual bands.
- Helps diagnose stereo enhancers or EQ phase shifts.
- Useful in mixing, mastering, and broadcast, for keeping low-end mono.
BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent