[Roen]

How are the flagship Sony SoC’s for playing 4K HDR (VP9, HEVC, AV1) at Blu-ray remux bitrates and passing through the truehd atmos or dts:x audio to a receiver?

[random_username]

How are the flagship Sony SoC’s for playing 4K HDR (VP9, HEVC, AV1) at Blu-ray remux bitrates and passing through the truehd atmos or dts:x audio to a receiver?

I recently got an 2021 A9S OLED - I've not tried a really high bit rate remux, but pass through of Atmos etc works with an external receiver via eARC. It doesn't appear that refresh rate switching is supported, but as per earlier comments the Sony post-processing is very, very good - I could not spot any judder on a variety of frame rate sources. 

That said, there's something amiss with the audio pass through - it will randomly glitch and drop out for a few milliseconds every now and then, with some sources appearing to be worse than others. It doesn't appear to be a Kodi issue though - it also does it in Netflix/Prime etc as well. I tried certified HDMI 2.1 cables, disabling eARC, reboots etc but couldn't fix it All of the other reports of drop outs I've seen are different to this, so there's a chance it could be an incompatibility with my Amp. So I'm back to using the Shield again...

[justinwu]

@wrxtasy 

Seems like A9G will not be good enough for 4K blue ray disc.

"MediaTek MT5893 (BRAVIA UR2/BRAVIA UR3 - 4 x ARM Cortex-A73 @ 1.5 GHz) + Sony X1 Ultimate image co-processor - Geekbench - X950G, A9G, X950H, A8H"

[noggin]

@wrxtasy 

Seems like A9G will not be good enough for 4K blue ray disc.

"MediaTek MT5893 (BRAVIA UR2/BRAVIA UR3 - 4 x ARM Cortex-A73 @ 1.5 GHz) + Sony X1 Ultimate image co-processor - Geekbench - X950G, A9G, X950H, A8H"

Apologies if I'm missing something - but nothing in the quoted specs details the hardware decode functionality of the SoC?  AV1/h.265/h.264 etc. aren't typically CPU decoded in consumer devices - they are hardware decoded. The X1 will handle upscaling duties - possibly - for non-panel native resolution content?  However UHD Blu-ray will be at panel native resolution - so won't need upscaling?

Historically the issue with Sony Android TV sets has been that they ran Android at a fixed 60.00Hz frame rate - so 23.976/24.00/25/29.97/59.94 stuff was all converted to 60.00Hz - with MotionFlow having to try to unpick the dodgy cadences that this introduced. (Confusingly - in Europe - HbbTV apps running on the same TVs are fine and run at 50Hz with no problem)

I don't know if Sony's latest Android/Google TV models now handle refresh rate switching within Android apps better (Though last time I checked Netflix didn't use the API in their app to switch frame rates anyway - though Kodi, of course, does...)

[looun]

That said, there's something amiss with the audio pass through

android TV firmware is optimized for exoplayer NOT media codec(kodi) .
force kodi to use exoplayer https://forum.kodi.tv/showthread.php?tid...pid2975374.

Or use other player like : Vimu , plex, emby ecc..

Seems like A9G will not be good enough for 4K blue ray disc.

ANY TV can playback UHD from file, The problem is LAN100 and wifi limited bandwidth

mine can playck UHD 120fps H.265 without nay issues.
 

It doesn't appear that refresh rate switching is supported

Historically the issue with Sony Android TV sets has been that they ran Android at a fixed 60.00Hz frame rate - so 23.976/24.00/25/29.97/59.94 stuff was all converted to 60.00Hz - with MotionFlow having to try to unpick the dodgy cadences that this

TV not need auto-switch fps/hz.

ANdroid TV use different API "Frame rate" https://developer.android.com/guide/topi...frame-rate.

film at 23,976fps was "refresh rate" ad 119,88hz ( = 59.94 *2).