Please add more Algorithms and return the iZotope SRC (legacy).
Could we look at a Dolby Atmos Spatial model Algorithm ??
In what context?
X stereo channels
The Dolby Atmos Binaural Renderer produces a ‘Spatial’ multi-channel surround psychoacoustic (stereo) mix , which only requires headphones to audition the recording/production… It really is all about binaural Dolby Atmos multi-channel psychoacoustic/spatial content availability.
Otherwise, playing Dolby Atmos binaural psychoacoustic multi-channel surround/spatial productions via a pair of speakers, is sub-optimum, in comparison to the binaural headphone experience.
Your right it would need to an Audio Units Effect, perhaps a wider sound stage effect option if it exists
Atmos Binaural content does not require any other processing…
There exists stereo speaker cross-talk removal plug-ins…
X-talk Shaper
Universal BACCH 3D for Speakers
PANORAMA 7
And other HRTF/psychoacoustic virtualization plug-ins just for headphones… ( a few examples)
REDLINE MONITOR
CanOpener
And this suite of stereo and multichannel HRTF virtualizations…
There are many more…
1 Like
The Hang Loose Convolver has an example of cross talk cancellation filtering for headphones. This example is included with the HLC install so one can try it out.
RTFM 
And there are several dozens of pro audio plugins that will do soundstage manipulation like height, depth and width… Even some EQs like Michelangelo with Mid/Side Processing can do that… Google is your frenemy…
1 Like