Hi,
is there an option to create some kind of script that will run multiple Plex media scanners to generate loudness/voice data faster since now it only use 1 of 12 cores in my system
I agree.
While video preview thumbnails are OK on just one CPU core IMO it takes too long to do the voice analysis. And if you set it to run on low priority it takes even longer.
It would be nice if you could set up to run scheduled tasks at 50% of the cores (and not 50% of the CPU charge).
Keep in mind that Plex implemented more and more scheduled tasks over the year so it should be considered to give these a bit of a boost! 
