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Contributor I
April 23, 2022

Lost surround and sub ( after update ?)

  • April 23, 2022
  • 1604 replies
  • 81295 views

Hi 

I don’t know if my issue is related to the 14.6 update but I noticed today that I had no sound from my surround (play 3) and my sub (Gen 2), only the Arc is working They are still present in the app under the my System view but now sound which every sources

When I reboot each of them, the sound comes back temporary, but when I switch to another source or audio format, thé Sound disappears again. Tried several times, same behavior

Thanks for your help

 

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1604 replies

Enthusiast II
May 22, 2022

don’t get me wrong, this bug sucks but on streaming devices using Dolby digital instead of LPCM is not lower quality. The source stream is Dolby digital and lossy anyway the device is just decoding it and outputting as LPCM

Most common streaming services use Dolby Digital Plus for 5.1 titles I think so Dolby Digital could be considered a downgrade. I’m not sure how noticeable the difference is in practice though. Probably not much. 

peterbault
Enthusiast II
May 22, 2022

don’t get me wrong, this bug sucks but on streaming devices using Dolby digital instead of LPCM is not lower quality. The source stream is Dolby digital and lossy anyway the device is just decoding it and outputting as LPCM

Most common streaming services use Dolby Digital Plus for 5.1 titles I think so Dolby Digital could be considered a downgrade. I’m not sure how noticeable the difference is in practice though. Probably not much. 

Fair enough but yeah not noticeable at all in my experience 

Enthusiast I
May 22, 2022

To mitigate the issue until they produce a fix, I have fallen back to adjusting audio to Dolby Digital on the  Apple TV, changed the TV settings to ARC, and Auto to eliminate possible opportunities for the encoding to change and break the experience.  So far, I have been able to enjoy my setup again even with lower quality audio, it still sounds better than losing my sub and surrounds.

As someone without eARC on their TV who had only ever used Dolby Digital/Dolby Digital+ (not Atmos, other than converted) … I’m still suffering from the issue. This workaround doesn’t resolve things for me. I’m on an older (no eARC, just ARC) Sony Bravia and still plagued by the issue when the AppleTV is set to output Dolby Digital. 

 

Enthusiast II
May 22, 2022

Hello,

Just an update, did another test and made sure the network was perfect by plugging in the ARC and the AppleTV to my router. The Matrix showed as solid green all the time - it was pretty much optimal conditions. 

132955780 is the next diagnostics where the issue occurred switching between Amazon Prime (Stereo PCM) and then to Disney (MPCM 5.1). There is (as others have said time and time again) no way this is a networking issue! 

 

Enthusiast II
May 22, 2022

To mitigate the issue until they produce a fix, I have fallen back to adjusting audio to Dolby Digital on the  Apple TV, changed the TV settings to ARC, and Auto to eliminate possible opportunities for the encoding to change and break the experience.  So far, I have been able to enjoy my setup again even with lower quality audio, it still sounds better than losing my sub and surrounds.

As someone without eARC on their TV who had only ever used Dolby Digital (not Atmos, other than converted) … I’m still suffering from the issue. This workaround doesn’t resolve things for me. I’m on an older (no eARC, just ARC) Sony Bravia and still plagued by the issue when the AppleTV is set to Dolby Digital. 

 

Interesting. Does the Sonos app report Dolby Digital or some kind of multichannel PCM when you’re watching 5.1 content?

mejustowen
Trending Lyricist I
May 22, 2022

There’s another new software update y’all. Maybe this is the one?! 

Enthusiast II
May 22, 2022

There’s another new software update y’all. Maybe this is the one?! 

Newer than 14.6.2?

Enthusiast I
May 22, 2022

Here’s my latest theory:

Looking for commonalities in this thread, everyone experiencing this issue has an Apple TV 4K or Nvidia Shield and a newer high end TV that should support eARC.

 

I have a 1st Gen Apple TV 4K and a Sony A1E OLED with the older ARC (not eARC) standard. The problem initially occurred in my system not with Apple TV but through the native Android TV apps. Navigating between various Youtube (on Android TV) videos, all encoded differently, would trigger it, in fact it would kill all sound not just from surrounds and sub but also from Sonos Arc soundbar itself.

I only noticed the subs and surrounds dropping out after I stopped using Youtube on the native Android TV OS completely and switched to watching Youtube on my Apple TV 4K. At that point I started switching more regularly between various sources i.e. I would watch Netflix, Prime, Disney + on native Android TV and I would use the Apple TV for Plex, Apple TV+ and Youtube as well as regular TV through the Cable Box.

After this, I noticed I had set my Audio Output on Apple TV 4K to ‘Dolby 5.1’ and not ‘auto’. Using the the Apple TV solely would not trigger any sub or surround drops and I assumed it was because all audio was being encoded to a single codec output. That is when I had initially surmised that something was going on with codec changes that was triggering the issue. (I initially reported my findings on page 13 of this thread)

Enthusiast II
May 22, 2022

There’s another new software update y’all. Maybe this is the one?! 

I am stuck on 14.6.1 (UK based) so have not even got 14.6.2 available. Also, I suspect 14.6.3 is something to do with the music issue they are reporting…..

mejustowen
Trending Lyricist I
May 22, 2022

There’s another new software update y’all. Maybe this is the one?! 

Wait… maybe not. It just did a super fast update, like 15 seconds. No idea what it was, still on 14.6.2