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PLAYBAR Crackling/Buzzing

  • 16 November 2017
  • 13 replies
  • 1879 views

About 2 months ago, my PLAYBAR started periodically making a strange buzzing noise on TV input. TV model is Vizio E70-E3, connected via optical. The buzzing stops when muting/unmuting sound, only to return after continued use. The frequency of this buzzing has steadily increased over the course of two months. Video of sound attached. Buzzing sound starts at 0:03.

The type of sound seems to me like a hardware, and not a network/interference problem. I've had the PLAYBAR for about a year now with no issues up until 2 months ago. Two surrounds are connected to the PLAYBAR. No sub is used. A BOOST sits in the same room as the PLAYBAR.

Diagnostic number: 8089561

No 5000+ phyerr events are shown when the sound occurs. Network matrix is showing OFDM ANI level 9 for one of the surround speakers attached to the PLAYBAR, which I believe is due to a new Wemo plug installed in the past 2 weeks. However, the buzzing sound on the PLAYBAR occurred before the addition of the Wemo plug and the increase in OFDM levels. The OFDM levels for the PLAYBAR itself show 0 when the buzzing occurs. Therefore, I don't believe this is due to wireless interference.
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Best answer by Ryan S 22 November 2017, 00:44

I'd recommend either calling them, or hitting their twitter. You can find the info about this at https://www.sonos.com/contact
I concur. It's sounding like a problem with that unit, which we'd be able to help with on the phones best.

Also, really great troubleshooting and analysis. Generally speaking, wireless noise shouldn't cause what you're describing. A buzz is more likely to be caused by a power related issue.
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13 replies

Can anyone from Sonos please assist?
I'd recommend either calling them, or hitting their twitter. You can find the info about this at https://www.sonos.com/contact
Userlevel 7
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I'd recommend either calling them, or hitting their twitter. You can find the info about this at https://www.sonos.com/contact
I concur. It's sounding like a problem with that unit, which we'd be able to help with on the phones best.

Also, really great troubleshooting and analysis. Generally speaking, wireless noise shouldn't cause what you're describing. A buzz is more likely to be caused by a power related issue.
I started seeing similar issue in my recently bought Playbar (3 months back) playbar. It started making Crackling/Buzzing sound.
I'd give them a call ASAP. https://www.sonos.com/contact
I have the same issue. My left surround cuts out at about the same time with a pulse frequency. Mute/Unmute works as does pausing/unpausing TV.
I'll suggest two things, First, check to be sure your TV has the latest software/firmware update, and second, submit a system diagnostic, and post the number here, for the folks at Sonos to look at. Or call them at the link I posted above.
Thanks Bruce. I shall do that tonight when I get home.
No promises, mind you. Some people have had success with the firmware option, others haven't. But at least it's a start, and removes at least one possibility. Contacting Sonos directly gives them an opportunity to do more direct troubleshooting, which is hard to do in an asynchronous forum fashion.
I have exactly the same issue - was there any resolution? I submitted diagnostic 8394658
Userlevel 7
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Hi, kmbr. Thanks for notifying us. As you can see, the resounding advice is to give us a call- I'd do just that.
Same problem here. Only happens with sound coming across optical from my TV with prolonged use (like usually middle of a movie), stops briefly with mute/unmute, then quickly returns. Tried changing optical cable, no dice. Will give a call, but would be nice to know if others have found a fix by calling Sonos.
Userlevel 1
Badge +5
I have the same problem.
More common with audio from PS4 PRO. Yesterday, for the first time, same problem coming seeing Netflix from TV, so it is a playbar problem.