Dolby TrueHD Triggering Transcoding?

[nodiaque 64]

Hello,

I hae 2 LG TV. One is OLED65C8PUA which is an old 2014 model or so that only have HDMI ARC and the other one is OLED77C5PUA, 2025 model with HDMI E-ARC. Both are connected to 7.1+ Atmos Receiver (Sony STR-DN1080 and Denon AVR-X4800H).

I know the 77 can do Dolby Atmos 7.1 no problem but the second a TrueHD stream is sent, even 2.0, Emby transcode it. I'm wondering why because it shouldn't. In the user guide, it says it support Dolby TrueHD on EArc

http://kr.eguide.lgappstv.com/manual/w25/w25_u33/enga.html#6227

 

I know the 65 also support TrueHD but not on output at 7 channel. But TrueHD for 2 channel is supported.

 

Thank you

[yocker 1842]

49 minutes ago, nodiaque said:

Hello,

I hae 2 LG TV. One is OLED65C8PUA which is an old 2014 model or so that only have HDMI ARC and the other one is OLED77C5PUA, 2025 model with HDMI E-ARC. Both are connected to 7.1+ Atmos Receiver (Sony STR-DN1080 and Denon AVR-X4800H).

I know the 77 can do Dolby Atmos 7.1 no problem but the second a TrueHD stream is sent, even 2.0, Emby transcode it. I'm wondering why because it shouldn't. In the user guide, it says it support Dolby TrueHD on EArc

http://kr.eguide.lgappstv.com/manual/w25/w25_u33/enga.html#6227

 

I know the 65 also support TrueHD but not on output at 7 channel. But TrueHD for 2 channel is supported.

 

Thank you

TVs in general can't passthrough TrueHD and/or above 5.1 so transcode is needed.
If you want TrueHD and 7.1+ you will need to use for example a Nvidia Shield connected to the AVR.