Question about Atmos

Platforms Apple TV
1

I have a Sony X900F and i’m considering buying a new atmos soundbar. The bar will need to be hooked up via the ARC port on the TV. I’m aware ARC doesn’t support lossless codecs but it should handle EAC-3 Atmos (netflix etc).

My questions are as follows.

  1. If i were to play an EAC-3 Atmos file in infuse, would the audio be bit-streamed in DD+ container or is it output as PCM MAT 2.0?

  2. Does the audio setting in the apple tv system settings have any impact for this use case scenario (‘auto’ v ‘dolby digital’)?

  3. Can Infuse transcode TrueHD Atmos to EAC-3 and retain Atmos metadata.

I’m asking because i dont believe the X900F can passthrough PCM MAT 2.0 so an atmos soundbar may be pointless. As i said, it has to be connected over ARC due to a minimalist installation.

Thanks.

2
  1. PCM
  2. Auto is required for Dolby atmos
  3. No. All lossless tracks are stripped of object based data and transcoded to PCM.
1 Like
3

Thanks

4

One last thing, if Infuse is able to decode TrueHD Atmos, and the apple TV can output MAT, why does the the atmos data get lost?

5

It can’t decide TrueHD atmos. It just reads the TrueHD portion. Apple only supports decoding of dd+ atmos to MAT.

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6

Some sound bars have a HDMI in and out.

If you had a TV which couldn’t pass through all the formats then this would solve that issue.