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

I had this issue for the first time yesterday. My Beam was plugged into my Samsung blu-ray player using an optical cable. I was watching a YouTube video from the Samsung app, and it was working fine. I paused it, then when I resumed, there was a constant tone in the background. Playing the same YouTube video through the TV speakers was fine. I tried switching optical cables, and tried plugging the Beam into my TV’s optical output instead, but the loud tone continued as soon as any audio was playing through it. In the end I unplugged the Beam, plugged it back in, and that fixed it. I just hope this doesn’t happen frequently since the plug socket is hard to get to and there’s no other apparent way to reboot the Beam. Maybe there should be an option in the application to do so?

I would like to report that I factory reset my Playbar 2 weeks ago and, since then, I have not experienced any more buzzing. Not sure if this is related, but for me factory reset seems to have solved the problem. The reset instructions are here: https://support.sonos.com/s/article/1096?language=en_US

i have a beam and had the same issue. i factory reset it and it was working fine for 2 days and the buzzing noise just came back like 20mins ago. Darn.

Sorry to hear that. My Playbar has not buzzed once since I factory reset more than 3 weeks ago. This issue might be affecting the Beam in a different way.

Hello all,

I'm facing the very same issue. My Sonos Beam gets a buzzing annoying sound after a few hours of being used (YouTube, Netflix), the only way to fix it is disconnecting the Beam from the power and then connnect it again.

It's connected to a Samsung smart TV through HDMI ARC port. This also started happening since latest app update, I didn't have any issue before this.

I see Sonos staff is now ignoring this thread, I was going to get a Sonos Arc, but after this horrible service I'm definitely spending my money somewhere else.

Hi.  I am having the same issues. Samsung TV,  Playbar with two play 1 and a sub using S2.  First time it happened was three weeks ago and it kind of resolved itself.  It came back last night and I had to unplug the playbar to fix it.  Has anyone gone back to S1?  I’m tempted but want to wait to see if anyone has had success doing that.  Thanks, Jim

same issue with my Beam .. I have only noticed it recently… samsung TV ARC connected BEAM connnected via LAN… HDMI input coming from a Orange LiveBox 

it seems like the left hand side is buzzing and all the sound comes from the other side…  unplug/replug resolves it but it comes back ?

this must be a software issue...

I too have had this issue twice in the last month from my Beam and I'm on S1. There's been a buzzing from the right hand side of the speaker outputting from my Samsung TV (radio and other music sources were fine though). 

Oddly it was fine from Netflix or Amazon using the TV apps but the Channel 4 app and TV channels played from my Virgin TiVo box emitted the buzzing.

I switched off TV and TiVo which eventually sorted it so I was convinced one of those was the problem. Reading this, it sounds more widespread so I'll submit a diagnostic next time.

Happened tonight again. Playing from the Channel 4 app (in the UK). It's more of a continuous tone from the right hand side of the speaker. I powered off and on which cleared it. Diagnostic 1659162737. If someone at Sonos could take a look please?

Cheers 

Jacob

Can someone at Sonos take a look please as it keeps happening and is really annoying? Cheers