Depends on your setup…
The Apple TV natively supports Dolby Digital Plus and Dolby Atmos. Those streams will usually be transferred over HDMI as bitstream (LPCM).
The advanced player (currently in Plex Pass preview phase) will play more audio formats (e.g. DTS).
Limitation will likely be the sequence how you feed that signal to your TV / sound bar. If the soundbar is linked to the TV via ARC you might not get the audio signal through – that should require eARC (supports higher bandwidth/bitrates)
That being said… from the Bose homepage it reads like the soundbar you got only supports Dolby Digital anyway… so you should be good anyway (and the new player should be capable to transcode your audio streams to the respective format).
The Apple TV doesn’t support audio passthrough, so you won’t get the full benefit of them. We convert TrueHD to FLAC, AAC, or Opus (depending on the situation). DTS-HD will play the DTS core
Thank you very much for the replies. Will the “regular” Nvidia Shield TV work better? I assume it has the Plex client? I mean this one: https://www.nvidia.com/en-us/shield/shield-tv/
Yes although any issues I have read about with the Shield has been with the tube version that you linked. The Pro version is fantastic if you stretch to the extra cost.
I have yet to come across anything that it has failed to direct play regardless of video type, subs type and more importantly to yourself audio type.
I’m not saying stay away from the tube version and maybe those issues I recall reading about are a thing of the past, I really can’t say. But as someone who owned the older version of the Shield and also an ATV 4K, I exclusively used the ATV 4K for day to day viewing and just switched to the Shield for high octane movies. However I was intrigued by the remote of the newer Shields and took the plunge.
Suffice to say I no longer have the ATV 4K or older Shield. I would add i did really like the clean looks of the UX on the ATV 4K, but life became too short for switching clients all the time.
Considering the Bose soundbar is only dealing with Dolby Digital (no Atmos, no TrueHD, no DTS), the quality output will be the same or on a similar level. Both clients can serve that audio quality nicely or ensure your higher quality audio is properly adjusted to meet the soundbar’s needs.