Contributor I

SL One rears hissing

18 replies
1239 views

I’ve dug through various forums including here and can’t find a solution to this problem.

I have just purchased a Beam with two SLOne’s as rears. The rears are right by the sofa. When they aren’t being used, the have a constant high pitched hissing sound. It’s not loud, but the point is, I can hear it, which isn’t good!

I’m downsizing from a regular amp/speakers 5.1 set up, and I would never hear anything coming from the rears when it wasn’t supposed to.

Digging around the forums, nobody seems to have a resolution for this. Any ideas?

edit: these are on latest upgrade - all brand new units.

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A

aviHilAuthor

Contributor I

No this was never resolved unfortunately.
it appears Sonos devices used as rears in a surround setup, will always display this behaviour. I think less people have flagged it up because they don’t sit with the rears close enough to notice the hissing.. but it’s there.

Paul A

Retired Sonos Staff

Hi @Count D.

Welcome to the Sonos community and thanks for reaching out regarding this topic. My last reply was a recommendation to contact our technical support team as they have more tools and means necessary to troubleshoot and help you guys out with your concern and hopefully e resolved within the same point of contact.

Hi @aviHil.

Thanks for submitting a diagnostic and for your immediate response.

Based on the provided diagnostic, the audio codec from the TV going to the Sonos Beam is PCM. It is the generic audio format. Can we try changing it to Dolby digital or surrounds on the TV settings and check if the issue would persist? If yes, I would like to highly recommend contacting our technical support team for more in-depth troubleshooting steps to see what is triggering this hissing sound. You can also try unplugging the HDMI cable from the back of the Sonos Beam and TV and plug it back while both are turned off. This recommendation is a shot in the dark since I could not think of any other reason why would it generate a hissing sound for the surrounds.

I hope this helps.

Please let us know if you still have further questions or concerns. We are always here to help.

Thanks,

Please let us know if you still have further questions or concerns. We are always here to help.

Thanks,

Help others find useful content by clicking the like button and selecting the best answer to your question

Paul A

Retired Sonos Staff

Hi @aviHil

Thanks for the update and feedback. I would still like to recommend contacting our technical support team. They may find the cause of this hissing sound to get things sorted out for you. It may be a glitch, it may be wireless interference or other devices capable of connecting to the internet that is causing this hissing sound or possible TV audio codec issue. Depending on the findings or result of the diagnostic and troubleshooting done with in the point of contact with our technical support team.

I hope this helps.

Please let us know if you still have further questions or concerns. We are always here to help.

Thanks,

Help others find useful content by clicking the like button and selecting the best answer to your question

C

California_Kenny

Lyricist II

Hi all.

I just installed my two Sonos One SLs yesterday in the same arrangement as the original poster. I immediately noticed a faint hiss and it feels/sound similar to a ringing in my ears when my LG OLED is on. When I mute the TV, and get close to my rear speakers, I hear the faint airy hiss. The hiss persists for a few minutes after turning off the TV.

I also hear the hiss when playing music over AirPlay and when the music is paused. Therefore, I searched for this topic.

Has anyone been able to solve this? If so, how?

I sent a diagnostic just in case it helps: 348230699

Thanks!

G

GuitarSuperstar

Lead Maestro

@California_Kenny Are the One SLs plugged in to two different outlets or the same outlet? If different, try plugging both speakers into the same outlet or power strip.

Are there any other wireless devices that could be causing interference near your speakers?

"Receive with simplicity everything that happens to you." - Rashi

C

California_Kenny

Lyricist II

Thanks @GuitarSuperstar. I have each speaker plugged into different outlets. I’ll try putting them in the same one and report back tomorrow. The only wireless devices in the room are the One SLs and my Arc...and I doubt my iPhone is causing interference.

I appreciate the tips!

C

California_Kenny

Lyricist II

Putting both in the same outlet did not make a difference. I can still hear a faint wind-like sound coming from the rears when on. Thanks again.

L

lm1980

Lyricist I

Hello all

this is not a new issue but is common with Sonos and in my case a pair of Sonos Ones SLs and also a pair of Echo Studios. Both brands do the same.

The Sonos One SLs have hissed (white noise) since new. It’s not electrical interference as this would sound similar to a fax machine (but quieter).

I love music and having a white noise being audible even with music playing at low volumes is degrading the sound quality. The noise does not however increase with volume but isn’t heard when the volume of the music is increased. I listen to music all day at lower volume levels more than at higher levels. If I can hear the hissing then I’m not enjoying the music.

There is little point in product swapping under warranty (which Sonos are good for) as it is the tech inside that is probably the cause. My only option has been to go back to a dedicated separates system and bigger speakers and even though is use a digital amplifier I do not hear white noise or digital amp whining.

Have Sonos found the cause and a solution. This was the noise that caused me to stop using my Sonos Beam. And also why I stopped using other smart speakers.

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