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



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I have exact same issue however it’s only when I play channel 7HD...everyone other channel including other channel 7 variants (7TWO, 7MATE) all play perfectly.  When I play 7HD through Sony Bravia TV speakers it plays fine. However 7HD through the Sonos Playbar will play a loud humming sound...very bizarre and annoying.

 

I have taken the advice of other people on this thread and the hard power reset has fixed the issue. (For now)

I will echo what everyone else has been reporting on this thread. Playbar plugged to Samsung TV via optical. No problem until maybe 3 weeks ago. Now, several times a week, the playbar emits a buzzing sound, only when outputting from the TV. Playing music wirelessly from the app never triggers the buzzing noise. Sometimes, I’m able to get rid of the buzzing when switching the TV audio from dolby surround to PCM, but some other times, this does not resolve the problem. Unplugging the playbar is the only remedy, but it is only a temporary fix since the buzzing starts again a few hours or a few days later. I tried to switch the optical cable, recheked all my connections, … As everyone reported here, this has to be a firmware issue. Please Sonos, solve this! I don’t want to end up with a giant $500 paperweight.

I just purchased the Sonos Beam. 2 days later watching internet TV I get loud buzzing from right speaker on beam- no resolution available.  £360 for a speaker- I expected a little better than this Sonos. Terribly disappointed, returning for a full refund. I will never recommend Sonos to anybody. 

Dear Sonos support,

just wanted to let you know this issue is still unresolved!

I'm forced to powercycle by Beam every other day. This is NOT normal!

Creating support cases gets us nowhere as many have stated in thi thread.

Please can we at least get an acknowledgement form Sonos side that you are aware of this problem? Communication regarding this has been very poor and although product is good othervise I would never suggest Sonos to anyone due to this attitude!

 

I have the exact same issue as OP: Samsung Smart TV hooked up to beam via HDMI (ARC) and only happens when I’m on YouTube. If I switch to other apps like Netflix or Spotify I don’t get the buzzing. This has been going on since the beginning of the year for me, but I notice it happens only while watching a YouTube video.

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.

 

I'm having exactly the same problem with a Samsung TV and it started a few months ago. First time I noticed the static background noise was via the TV's Facebook app. Once it starts, the tone of the static noise changes when I start a different video or I stop it. Same happens if I open a different TV app. The problem solves only after a power cycle the Sonos Beam. The problem is happening roughly once a week. Please, do something Sonos. Look how many people in this thread is complaining about the exact same problem.

After not experiencing this for a while I though that problem has been fixed in latest sofware updates, but I just experienced what I believe is a new form of same issue:

turned on TV and sound seamed to be odd (no buzzing though). After I came closer to Beam I understood that central channel (speach) is coming not from the central speakers but from left speaker instead. It was hard to determine what exactly was going on with center and right speakers, but seamed that there is some sound coming out - I’m guessing channels were swapped and center speakers were playing left or right channel audio.

Powercycle set everything back to normal.

I was unfortunately on the same boat as everyone else. I have a Samsung smart tv and the buzzing appeared fairly recently.  I didn’t change any settings at all and I have done everything that was suggested in this thread to no avail and whatever recent updates happened they didn’t help at all.  Unplugged the optical cable and blew air into it to get any dust out.  After all the resetting I looked at power and the plug was partially out of the power socket! I made sure it was plugged in tightly and the buzzing went away. Bad grounding! I hope my bone headedness fixes the problem for some of you 😀 

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Hi all. There’s a update today on the sonos app. Hopefully this might fix the issue. 
 

Aaron

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Hi All,

I have had the same issue with my Playbar 5.0 surround set up. Started a couple of months ago. 

The Playbar is optical only so i tried a new cable but that didn't work i have a Samsung TV. I seem to only get the buzzing when the apps are used and then the only way to reset it is to pull the power cable. 

I email technical support and we have tried assorts of things. Both the software on the TV & the Sonos is up to date (which might be the issue). I have tried removing the rear surrounds (Sonos Ones) and i still get the issue. I then re added them same problem. I tried turning true play off that also didn't work. 

It doesn't seem to do it as often at the moment and I have sort of given up with the tech support as it seems like they dont know what the issue is. I might email them a link to this thread. 

If anyone has a fix that would be good to know. 

Thanks

Aaron 

Hi Aaron, I'm convinced it's a problem with the recent update of the app to S2.  Everyone who's reported the problem seems to think that to. Sonus unfortunately seem to have given up on this thread as they've not posted in a while.

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Hi All,

I have had the same issue with my Playbar 5.0 surround set up. Started a couple of months ago. 

The Playbar is optical only so i tried a new cable but that didn't work i have a Samsung TV. I seem to only get the buzzing when the apps are used and then the only way to reset it is to pull the power cable. 

I email technical support and we have tried assorts of things. Both the software on the TV & the Sonos is up to date (which might be the issue). I have tried removing the rear surrounds (Sonos Ones) and i still get the issue. I then re added them same problem. I tried turning true play off that also didn't work. 

It doesn't seem to do it as often at the moment and I have sort of given up with the tech support as it seems like they dont know what the issue is. I might email them a link to this thread. 

If anyone has a fix that would be good to know. 

Thanks

Aaron 

Same problem here.

LG OLED TV using ARC.

Switching to PCM makes the buzzing higher pitch and much more unpleasant.

 

Rebooting the Beam help for sometime but it does reverts.

 

Happens both on apps and live TV.

Hi Morten, don't expect much from Sonus. This thread has been going on for months and it seems now we're getting ignored.

Then I must create a support case on it.

Here in Denmark we fortunately has 2 years of warranty, and if the problem isn’t solved “within reasonable time” you can demand the purchase to go back.

Hi Morten, we've the same warranty period in Scotland but this issue wont be resolved by replacing your speakers. Sonus need to fix the firmware issue on the S2 app.

Then we should demand the purchase to go back.

 

Even though I would much rather have a working Beam soundbar!

Badge +1

Same problem here.

LG OLED TV using ARC.

Switching to PCM makes the buzzing higher pitch and much more unpleasant.

 

Rebooting the Beam help for sometime but it does reverts.

 

Happens both on apps and live TV.

Hi Morten, don't expect much from Sonus. This thread has been going on for months and it seems now we're getting ignored.

Then I must create a support case on it.

Here in Denmark we fortunately has 2 years of warranty, and if the problem isn’t solved “within reasonable time” you can demand the purchase to go back.

Hi Morten, we've the same warranty period in Scotland but this issue wont be resolved by replacing your speakers. Sonus need to fix the firmware issue on the S2 app.

Same problem here.

LG OLED TV using ARC.

Switching to PCM makes the buzzing higher pitch and much more unpleasant.

 

Rebooting the Beam help for sometime but it does reverts.

 

Happens both on apps and live TV.

Hi Morten, don't expect much from Sonus. This thread has been going on for months and it seems now we're getting ignored.

Then I must create a support case on it.

Here in Denmark we fortunately has 2 years of warranty, and if the problem isn’t solved “within reasonable time” you can demand the purchase to go back.

Badge +1

@Vosabhoy

Do you have a DVD/DVR/Game System that has either and ARC or an Optical port?

Hi Jean,

When are Sonus going to admit theres a firmware issue after the S2 update?

Badge +1

Same problem here.

LG OLED TV using ARC.

Switching to PCM makes the buzzing higher pitch and much more unpleasant.

 

Rebooting the Beam help for sometime but it does reverts.

 

Happens both on apps and live TV.

Hi Morten, don't expect much from Sonus. This thread has been going on for months and it seems now we're getting ignored.

Same problem here.

LG OLED TV using ARC.

Switching to PCM makes the buzzing higher pitch and much more unpleasant.

 

Rebooting the Beam help for sometime but it does reverts.

 

Happens both on apps and live TV.

Badge +1

When are Sonus going to do something about the S2 update issues? Things are going from bad to worse. I've lost all my speakers from the the app took me over an hour of deleting then re installing the app pulling cables the reconnecting. I'm now experiencing loss of sound from time to time. I have to reseat the hdmi Arc cable to get the sound back. Nearly £700 spent and since the S2 update it's been a nightmare.

Same issue for me. (Samsung Smart TV, Beam + 2 surrounds connected via HDMI) It is a pity. I really hope that Sonos will solve this via a software upgrade. Before the S2, it worked fine.

I am also having this issue, and would like to add to the above (Samsung Smart TV, Beam + 2 surrounds connected via HDMI). The only thing that has changed in my system is the S2 update so I’m pretty sure its related.

Watching Channel4 OD in the UK via the TV app - buzzing in right channel occurs only while the main programme is playing but not when the adverts are on. I assume this is due to the audio format of the playout being different for ads. When it first happened using input from a Google Cast it was very loud like a swarm of angry wasps. It was much quieter (though still audible) when it happened using the 4 OD app.

I did raise a support case but currently having to go through the usual “try a different HDMI cable” , “turn your router off and on” troubleshooting is a bit frustrating. I am not keen on the idea of nailing the TV output to PCM as I enjoy the surround sound (when it works properly).

Prior to this I was very happy with my Sonos setup.

I'm inclined to agree. This is definitely a firmware issue on the Beam itself. The S1 firmware did not have this issue. Rebooting the TV does nothing. Even after the TV has been rebooted the problem persists. Only a hard kill on the Beam fixes the problem.

As my first Sonos product, I'm less than impressed that the solution appears to be force my TV to output in a format that doesn't sound as good. 

The Beam is definitely receiving and processing something that gets it stuck in this error state. No matter what signal it subsequently receives, it'll remain in this state. My suspicion is that the diagnostic logs are incapable of capturing this, and simply report it as receiving a normal valid signal. A TV reboot would ensure that it is receiving an error free signal, yet the error persists. The issue is 100% on the Beam side.

If it helps any diagnostic work. My experiments to date seem to show that the error happens when the Sonos app says the Beam is receiving Dolby Digital 2.0. So in my case, we're generally witnessing the issue in the Amazon Prime Video app. However a programme outputting Dolby Digital 5.1 can be seeked backward and forward with no issue. A programme outputting in Dolby Digital 2.0 will cause the Beam to go bonkers if I attempt to seek backwards/ forwards through the programme.

This is clearly a Beam firmware issue (bug) and it’s very sad that Sonos fails to admit that.

As many have confirmed before - once Beam enters this “buzzing” state, HDMI input won’t work normally no matter what you do - rebooting TV, changing settings or connecting HDMI to other device will result in buzz.

There is no way to get it back to normal behaviour besides doing a powercycle on Beam itself.

As a software developer myself I know that there are those cases when bug occours in specific circumstances and can be very hard to track down but denying that there is a problem in Beam software and blaming TV’s is not going to solve this.

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@Vosabhoy 

Do you have a DVD/DVR/Game System that has either and ARC or an Optical port?

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Unfortunately I don't have another hdmi arc cable or alternative tv with this port.

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Hello @Vosabhoy 

I completely understand your frustration, unfortunately your TV doesn’t allow us to lock in the audio format to anything other than PCM/Stereo.

With your set-up I would like to see you up and running with full 5.0 surround. 

Way back in the beginning of this thread, when you were using the optical adapter, the buzzing behavior and the LG TV were the same?

Do you have another device with an HDMI/ARC or Optical audio port that we can test with your Beam?

Do you have another HDMI/ARC cable that we can switch out so we can eliminate the cable itself as a source of this audio issue? 

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