Im planning an install where i have a 10x10 HDbaseT matrix.

8x of the TV zones are using the inbuilt TV 2ch speakers.

2x of the TV zones are multi channel audio zones.

All Video sources need to be available on all TVs.

I dont want to set every source to output 2ch audio over HDMI. So my 2ch TV speaker zones, need to be able to locally downmix multi channel audio.

In the past ive done this with signal managers (this can get expensive, its another box to provide power for and hide etc)

Ive also noticed that Samsung TVs from 2017 onwards seemed to have onboard multi channel audio to 2ch audio downmixing. Ive seen some Sony's do this to.

Is there a name for this feature, so that i can check if the TVs im specifying have it ?

At the moment im choosing between LG, Sony and Samsung, not sure if the feature is called different things, by different manufactures