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pghalliday
Contributor I
June 11, 2020

I occasionally get a loud buzzing over the audio from Beam connected with HDMI

Is anybody else experiencing this. It only started happening yesterday and I have had my Beam for about a year.

I have the Beam connected to my Samsung Smart TV using HDMI (ARC) and it happened when I started a YouTube video through the TV YouTube app. There was a loud buzzing noise over the audio. At first I thought it was a TV problem, but I switched to the TV speaker and it was fine. When I switched back to HDMI the problem persisted. I also unplugged the HDMI from the Beam and plugged it back in but the problem persisted. After rebooting the Beam (by removing and reinserting the power cord) the problem went away. However it has happened at least 3 times over the last 24 hours.

It should be noted that if I stream to the beam over airplay while in this state the buzzing doesn’t happen.

Also the Beam is in a surround setup with a Sub and 2 Sonos Ones.

As it just started happening I wondered if it was due to a software update or something.

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    rixcc
    Lyricist I
    July 3, 2020

    Hello @Jean C. 

    I have disabled the Quick Start+ feature, but the problem persists.

    So far, what has actually made the buzzing go away was to turn OFF eARC. Sound is still HDMI ARC, but there is an option to enable/disable ‘eARC’.

    With eARC disabled, everything still seems to work fine. I’m just worried that I’m not getting the best possible sound quality. I am not sure it is making a difference in my case (please enlighten me), but I did read that eARC is basically an improved ARC that supports higher bandwidth.

    Jean C.
    Jean C.
    Retired Sonos Staff
    July 4, 2020

    Hello @Vosabhoy,

    Thank you for the additional information. Your Beam is still reading as using the optical connection in your diagnostic reports. 

    If your Beam is connecting via HDMI/ARC, can you check these settings in your Sonos app:

    Settings → System → TV Room → Home Theater set-up.

    This may force the Beam to recognize the HDMI/ARC connection formally.  

       

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    Jean C.
    Jean C.
    Retired Sonos Staff
    July 4, 2020

    @rixcc, Thank you for the additional information.

    eARC is only necessary if you have an Arc and were trying to support Atmos.

    For Dolby Digital or stereo sound on your Beam, the HDMI/ARC is just right.

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    Vosabhoy
    Trending Lyricist I
    July 4, 2020

    Checked settings...further diagnostic 1624290399. 

    Jean C.
    Jean C.
    Retired Sonos Staff
    July 4, 2020

    Thanks @Vosabhoy, I can see that your system is reading the HDMI-ARC connection now.

    I’m re-reading to see if I suggested disabling any Quick Start+ options on your LG TV and I mentioned it to @rixcc but it should also be relevant to you since you have an LG also.

    Some LG TV's have a "Quick Start+" features that has been observed and confirmed by LG that when enabled can cause unexpected audio for third party home theater devices. 
    To disable Quick Start+ setting on the TV:
    Settings -> All Settings -> General -> Quick Start+ (toggle to off)  

    Let me know if you have already done this and if it has made any difference in your audio behavior. 

    If you could also reboot your Beam and surround speakers by un-powering them briefly, this will also help.  

      

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    Vosabhoy
    Trending Lyricist I
    July 4, 2020

    Hi,

    Ive turned quick start off and rebooted all speakers.

    montrano
    Contributor I
    July 4, 2020

    We’ve just started having the same problem as well. 

    It seems to start out of nowhere, both times mid song. 

    The beam has two play 1 as surrounds and is connected via HDMI to an LG tv, which had an update around a week ago. 

    It has happened twice now, starting both times when streaming youtube to the tv from our phones. We’ve tested music via deezer and playing sound from the TV normally and that works fine, but streaming from either youtube or netflix causes loud buzzing. 

    The only solution Ive found so far is to turn everything off at the plug, after which it returns to normal. 

    I did a diagnostic, but only after Id powered it off and on again if it helps at all. 

    1891020492

    Jean C.
    Jean C.
    Retired Sonos Staff
    July 4, 2020

    Hello @montrano,

    Have you disabled the Quick Start+ settings as I have recommended earlier in this thread? 

     

    @Vosabhoy,

    The most recent diagnostic I have from you is still showing that you system has been up for 10+ days without restarting. Can you submit a current report along with the current status of your issue? 

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    Vosabhoy
    Trending Lyricist I
    July 4, 2020

    I restarted my beam and two sonus ones today.

    Jean C.
    Jean C.
    Retired Sonos Staff
    July 4, 2020

    @Vosabhoy, Can you follow up with a new diagnostic report so I can see if there is any changes in your system? 

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