MMM spreading
Some news about people using the technique of Moving Mic Measurement :
Charles Sprinkle (former Harman R&D, now at Kali Audio)
https://producelikeapro.com/blog/room-calibration-at-echo-bar-studios-the-moving-mic-method/
https://www.youtube.com/watch?v=6RiuwqzjqlQ
The same Charles Sprinkle also wrote a paper for the AES about MMM in cinemas
http://www.aes.org/e-lib/browse.cfm?elib=19477
Samsung now recommands MMM (they call it MMA) for the new generation of cinema screens
https://mountaincrest.net/dev/wp-content/uploads/2018/12/Samsung_Harman_Onyx_AudioSolution_Whitepaper.pdf