Hello all, I’ve been looking through many different threads and trying to compile information, could someone please reply if this is correct, as I suspect at least some of this is not accurate. Note this assumes a TV equipped with eARC or something approximating (e.g. HDFury Arcana):
|Audio Input||Xbox Setting||Sonos output|
Locals source/Blu-ray w/Dolby Atmos TrueHD
|Bitstream → Dolby Atmos||Dolby Atmos (lossless for local sources)|
Local source/Blu-ray/game with DTS-HD
|Bistream → Dolby Digital Plus||Multichannel 5.1 (lossy due to format conversion)|
Local source/Blu-ray/game with DTS
|Bistream → Dolby Digital Plus||Multichannel 5.1|
Local source with DD+/DD 5.1
|Bitstream → Dolby Digital Plus||Multichannel 5.1*|
|Local source with DD+/DD 5.1 |
Streaming source with DD+/DD 5.1 (Netflix, Amazon)
Games with DD+/DD 5.1
|Uncompressed 5.1|| |
Multichannel PCM 5.1**
* = Know for sure this is lossy even for local sources but some people (myself included) are finding it to actually sound “fuller” than the “uncompressed” option.
** = Is this correct? When I test DD 5.1 content on Netflix I see “Multichannel LPCM 5.1” being outputted which seems right, but then I read this thread and maybe I shouldn’t want the “multichannel” word there or it means something is lossy? I know as of April 2021 Sonos is working on a fix to downmix properly to LPCM 5.1 but didn’t think that would apply here.
- I guess any non-Atmos source (disc/streaming/game) mixed with 7 channels would also fall into the final two rows?
- And I guess we should never set Xbox to output Uncompressed 7.1 at this point since we would for sure hit downmix problem, but once the update hits, we could (and rely on Arc to do the conversion instead of Xbox)?
- For blu-ray sources in the first two rows, I believe we are also supposed to set “dynamic range control” to off and “let my receiver decode audio” to on.