[audit13]

ok thanks i'm using now  hdmi cable 2.0 high speed same as yours yet i dnt get true hd and dts hd....btw what version of kodi are you using? i installed kodi leia and krypton but in the allow audio pass through option in expert mode i dont see the dts hd capable and at true hd capable switch only dd digital plus and dts capable is in the pass through option.   

I'm using Leia RC2 and also get HD audio on my Win10 HTPC. Do you get TrueHD and DTS-HD using Kodi on other devices?   

 yes i have a gaming pc win10 with nvidia graphics 4k hdmi out with updated drivers i installed kodi leia and yet in the audio pass through options expert mode it does not show the true hd and dts hd switch only dolby digital ac3 and dts capable switch same thing on my mi box s. i dont understand if kodi removed that option. my receiver is a pioneer vsx923 4k true hd Dts HD capable hdmi set to auto but i only get dts-ddigital-ddgital plus but my movie mkv files are in dts-hd and true hd i even have some atmos format mkv but no luck. im giving up i think i have to settle for ddigital and dts only no hd audio in my mi box s. mybe planning to get nvidia shield next year instead but still expensive. i hope kodi and the mi box team is reading this. its 2019 already why can't they make things run smoothly...dts-hd and true hd existed almost a decade already at this point it should have been in standard automatic or default setup already. 

I get passthrough of DTS-HD and TrueHD on my Win10 home theatre PC. Did you get HD passthrough with any version of Kodi on any devices?

The screenshots I posted are with Leia on the Mi Box 3.