New Sonos ARC - DTS support

That’s an important development - do you have the source for that promise?

I have a new SONY XBR-A9G (with eARC HDMI), ARC, two Sonos 1SL rears coupled with my older Sony UBP-X800 player and Sonos Sub.  ATMOS is wonderful, streaming Disney+ movies in DD5.1 is great, cable TV in DD5.1 is good,  but my Blu-ray library is mostly DTS-HD Master Audio 7.1 or 5.1.  I cannot find any combination of settings to play these movies in anything but STEREO 2.0.  Amazingly if I switch the audio track to any of the foreign language DD5.1 they all play as 5.1 (but alas, I am only mono-lingual)….  I thought the new Sony A9G with eARC would transcode DTS to DD5.1 but it does not.  I have been on chat with Sony for an hour with Level 2 support and they conclude that Sony is passing the DTS signal (neither Sony product transcodes).  So I can play DTS from the TV speakers and left with Stereo 2.0 in the Sonos rear speakers.  

After reading this post, I realize the problem is with the SONOS ARC.  Prior to launch, I asked the SONOS preorder person if the ARC would support all the Dolby and DTS formats and was told “Yes it will”.  Obviously, this person was miss-informed.

I have looked for other players that transcode on the fly, but could only find people saying Samsung and Oppo did this and unfortunately Samsung does not produce them anymore and Oppo has discontinued making theirs (can only find used ones).  our PS4 has the ability but ONLY if using optical out (and I dont want to run another wire through my walls to the mounted TV/ARC).  Are there any other 4K UHD player brands out there with this capability?????

Optimal solution is Sonos to provide the ARC with capability to transcode DTSx to DDx instead of Stereo 2.0….

Get yourself a second hand Xbox one -  it transcodes DTS Blu rays to Dolby Atmos on the fly and works perfectly with no lip sync issues on my setup (LG C9 - Xbox one x - Sonos arc)

Great, thanks… and the Xbox One connects and transcodes via HDMI?  I have a PS4 but it requires using optical cable.

Yes - I have my Xbox one X connected to my TV via HDMI and it works without a hitch.  Quick tip - When watching UHD discs with Dolby Atmos true HD soundtracks I have found you need to select the option in the Blu ray settings titled ‘let my receiver decode audio’ otherwise the Sonos app says it is receiving only lossy Dolby Atmos and not the lossless True HD signal.  If you are watching a disc with a DTS soundtrack you need to deselect that option - the Xbox will then transcode to Dolby Atmos on the fly.  Changing this setting takes only seconds so it is not much of an inconvenience.

I may continue to use my Sony player for 4k atmos movies.  Maybe I can find someone local who wants to trade an Xbox one for my PS4 -- see what my kids friends have :)

hi all - just to confirm - no DTS on my sonos - 

what a shame

otherwise amazing soundbar 

Just received my new Sonos ARC and so disappointed it does not support DTS. I have a lot of Sonos speakers and had a Receiver until I decided to make the move to a Sonos setup. Most of my Blu-ray collection have DTS only, and is a shame I have to downgrade to stereo on my zappiti media player, which by the way is highly recommended if you have a Nas unit. When ATMOS is used on the ARC the sound is amazing. Please make sure DTS is not your main audio if you are considering updating your setup to SONOS. 

You might benefit from checking whether your Blu-ray player will transcode to Dolby Digital on the fly (many do) so that you don’t have to make do with stereo. 

I love sonos, but this is absolute garbage that they don't suppose DTS. If they want to be in the home theater market, this is a no brainer. I'm hesitant to buy a sonos home theater simply because of this!