Skip to main content
Talvish
Enthusiast II
June 21, 2020

Sonos Arc + Samsung Q90T | Sound Cutting Out | Anyone else?

So I recently picked up the Sonos Arc + Sub and a Samsung Q90T TV (which has HDMI 2.1/eArc) and I am experiencing the sound cutting out periodically. Some details:

  • Only devices I can test with are an Xbox One S, Xbox One X and the built-in Samsung TV Apps

  • Sonos, Xboxes and Saumsung are properly set to have Dolby Atmos

  • I have experienced sound cutting out on both Atmos and 5.1 

  • I have experienced sound cutting out from both the Xboxes as well as the built-in Samsung TV Apps (only tested the Netflix app) . . . so I know the Xboxes aren't the issue

  • At times the sound cuts out very infrequently (minutes apart) and other times about every 10 to 20 seconds and there is no discernible pattern on what changes this.

  • There is a sound setting on the TV showing ‘sound output’ that should should normally say ‘Receiver(HDMI-eARC)’ when you have the ‘HDMI eARC Mode’ set to ‘auto’ but sometimes shows ‘Receiver(HDMI)’ instead (as if it lost the eARC signal).

  • The most stable I have seen the sound (though it did cut out once during a 30 to 40 minute session, so perhaps it is just much less likely) is if I go to the Samsung TV settings and set ‘HDMI eARC Mode’ to ‘off’ (only other option is ‘auto’). When doing this Dolby Atmos still works (at least it says so in the Sonos app).

I don't know if this is a Samsung issue, a Sonos issue, or just the two of them working together. Curious if this is some form of eARC / HDMI signaling issue.

Perhaps related side-note: the Samsung settings do say when playing with the settings it may cause temporary muting, which is kind of what this is, so wondering if when in 'auto eArc' mode, there is a problem. Unfortunately there is no way to force on, just 'off' and 'auto'.

On reddit, someone with a Samsung Q80T also said they had this issue. They also mentioned that toggling ‘Dolby Atmos compatibility’ fixed it (though obviously no Atmos). My experience was more temperamental. Sometimes it got better and sometimes it didn’t.

Anyone else experiencing anything like this?

    This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.

    98 replies

    Show previous replies
    EndoRay
    Lyricist II
    August 31, 2022

    I was unable to resolve the issue after numerous calls to Sonos including system diagnostic submissions. I returned the ARC and went back to using my old Playbar. There is obviously some issue with the HDMI Arc connection because the optical connection on the playbar works fine.

      othersteve
      Lyricist I
      September 3, 2022

      Same problem here, QN90a + Arc. Sound randomly will not function at all after TV has been powered off for any period of time. Setting audio mode on Samsung TV to Auto corrects the problem, but downgrades audio to Stereo PCM on some inputs (Nintendo Switch among them). Setting back to Pass-Through on the TV options resolves this once more, restoring full surround on affected devices (e.g. 5.1 on Switch)… but only until power cycling TV again, after which it's back to no audio at all.

      I am aware that Samsung TVs have some issues with Pass-Through audio. However there has to be a fix for this…

      Cables are all high quality 48 Gbps Cable Matters from Amazon. Connections all good. Firmware of all devices is latest.

        Tmag
        Contributor I
        December 30, 2022

        Bought a Samsung QN 75 6 months ago used my old Samsung power bar and worked fine, at Christmas I got the Sonos Arc hood everything up to the E-Arc hdmi. From the get go sound keeps cutting out every 15 sec off 15 seconds on what is happening the HDMI keeps loosing connection. When TV setting is on auto keeps bouncing back and forth from tv speakers and Sonos hdmi. Not sure what to do return the Sonos Arc for a Bose 900 ???you spend all this money and can’t enjoy 

          PipeCL
          Trending Lyricist I
          November 9, 2023
          Me he comunicado 4 veces con asistencia de SONOS, finalmente reconocieron que hay un error entre dispositivos SAMSUNG - SONOS, me dijeron que están trabajando en ello pero esta discusión tiene 3 años por lo que no se ha solucionado. Tengo el mismo problema de cortes de audio cada 15 minutos (tv samsung q70t-Sonos beam gen 2).
          OV Don
          Contributor I
          December 17, 2023

          Same issue with Samsung here.  Swapped HDMI cable initially and it was a fix for about a week.  Issue came back yesterday.

          Does Sonos have a fix?

          OV Don
          Contributor I
          December 17, 2023

          Is there a fix for ARC audio cut out problem?

          Tgdrschoentom
          Contributor I
          January 3, 2024

          Same problem.  Thought I had a nice Xmas gift, but nope!   My TV is Samsung QN65, so it’s certain not limited to the QT90 or any other size/brand.    (multiple brands are mentioned here)

          The original post says the Speaker Output flips between ‘Receiver(HDMI)’ and Receiver(HDMI-eARC).   That’s exactly what happens to mine…. anywhere from 5 to 17 minutes apart.   I found I  can easily see  this “flip” occur when, on the TV, I turn ON the HDMI-eARC option, and then go back a screen to watch the Speaker Output flip from ‘Receiver(HDMI-eARC)’ and Receiver(HDMI) … and at the same time the sound cuts-out.   And, watching it for a few minutes, it flips back the other way.

          OV Don
          Contributor I
          January 3, 2024

          On advice from Sonos CS I added a CEC LESS adapter which did not eliminate the cut out. I am Still pursuing with Sonos.

          Terms & ConditionsAccessibility statement