If you want the end of this video (around 8:20) https://www.youtube.com/watch?v=BHtKOxGEiAw
You'll see the 3D guru Hugh Hou talk about using this free command line tool from Mike Swanson:
https://blog.mikeswanson.com/spatial
It works ready well.
The Spatialfy app works too, but I like the control, performance and overall look of the final product using the command line.