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SONOS ACE : Impossible to stop Bluetooth with usb-c to jack cable

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I have a SONOS ACE and I use it only with the usbc to jack 3.5 cable because I don't want wave on my head.

I test it with an electric field meter : despite the led is white, the headphone always emits in bluetooth (10V/m instead of 0.6V/m).

This value is very very high because the bluetooth of my smartphone is off : The headphone ping in continuous to search it.

If I turn on the bluetooth with the cable and I use the Sonos application : the value decreases at 3V/m but it's again high.

I don't have this problem with my old headphone from an other mark (0.6V/m with cable, it's the environmental noise).

There a solution to really turn OFF the bluetooth or it's a software bug ?

Sonos can confirms this problem ?

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Corry PAnswer

Sonos Staff

Hi @SebMoi

Welcome to the Sonos Community! And, thanks for your post!

Sorry to hear of this issue you are having.

The quoted text does indicate that you will not be able to use Bluetooth connections when Ace is connected to a device via USB, but at no point does it say that Ace’s internal radio is deactivated completely, resulting in no Electromagnetic Radiation (EMR) whatsoever.

If EMR is a thing that concerns you, I have to side with the other posters here - return your Ace for a refund (assuming you are still in the Money Back Guarantee period) or sell it and purchase headphones that do not have Bluetooth (or WiFi) functionality instead.

Having said all that, with Bluetooth and Sound Swap unavailable, I am not sure why the radio is not deactivated - perhaps because as it is getting charged via USB, there is no need to save the battery. So, I guess it is possible that we may disable Ace’s radio while connected to USB in the future. I will mark this thread as a feature request, and it will be seen by the relevant teams for consideration. Thanks for the feedback!

I hope this helps.

Incidentally, it is for moderators to decide when someone is off-topic - if you feel a post needs to be evaluated, please report it using the 3-dot menu to the side of the post. Please do not try to police threads yourself. Thanks.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

Show previous replies

AjTrek1

@SebMoi

I’m really not understanding your issue as it appears it could have been easily avoided.

The Ace was designed as a headset to audio swap with specific Sonos sound bars
The Ace also offers BT connectivity with a source that can transmit audio to them via BT
The Ace also offers connectivity via USB-C to an audio source

You obviously have a specific use case for headphones which is number three (3) above. That said why did you purchase the Ace knowing it has BT capability that you prefer not to use; as there are plenty of wired headsets with no BT capability on the market? 🤔

Click here for wired headsets with no BT

You are off topic.

Off topic???? 🤔

This is what you wrote….

“I work in an open space and I need a good active noise cancelling. Do you know other models only wired, with ANC and at this price ? Me, not.”

However, if you believe I’m off -topic….then so be it. I'll not add anymore to this thread. Good luck to find what you’re looking for.

Together Everyone Achieves More = T.E.A.M.

106rallye

Come on. You use a Sonos headphone out of context and literally ask for a list of noise cancelling headphones without bluetooth. I’m not prepared to start a discussion about the the tissue heating effects of bluetooth, but if you do not want this kind of radiation you should not have bought a wireless headphone. Even without bluetooth (probably the BLE that Sonos never turns off) with the USB-C connector the headphones are battery operated, which could also cause electrical effects.

S

SebMoiAuthor

Come on. You use a Sonos headphone out of context and literally ask for a list of noise cancelling headphones without bluetooth. I’m not prepared to start a discussion about the the tissue heating effects of bluetooth, but if you do not want this kind of radiation you should not have bought a wireless headphone. Even without bluetooth (probably the BLE that Sonos never turns off) with the USB-C connector the headphones are battery operated, which could also cause electrical effects.

The topic is : "Impossible to stop Bluetooth with usb-c to jack cable"

I seach a solution or a support contact for my Sonos Ace because I love it (the best active noise canceling for open space), not other.

The user manuel says :

"Note that the Bluetooth functionality of the Sonos Ace is disabled when connected to a wired audio source. This means that you cannot adjust the settings of the Sonos Ace in the Sonos app as long as a wired audio source is used. To access the Sonos Ace settings in the app, disconnect the USB-C cable from the Sonos Ace, and then wait for it to reconnect to your mobile device."

It's false, I think it's a software bug.

An old Bose QC35 do it (airplane mode) with ANC always on.

Normaly use the câble is most good to save battery, for the sound (no codec compression), for no radiative EMI and I can use ANC.

Here, a person who thinks that the Bluetooth is off in wired mode and stop the bluetooth or the SONOS application of his phone : It's as he puts a wifi box in his head during several hours.

I think it's easy to correct this in a new firmware, if there is no other solution.

Corry PAnswer

Sonos Staff

Hi @SebMoi

Welcome to the Sonos Community! And, thanks for your post!

Sorry to hear of this issue you are having.

The quoted text does indicate that you will not be able to use Bluetooth connections when Ace is connected to a device via USB, but at no point does it say that Ace’s internal radio is deactivated completely, resulting in no Electromagnetic Radiation (EMR) whatsoever.

If EMR is a thing that concerns you, I have to side with the other posters here - return your Ace for a refund (assuming you are still in the Money Back Guarantee period) or sell it and purchase headphones that do not have Bluetooth (or WiFi) functionality instead.

Having said all that, with Bluetooth and Sound Swap unavailable, I am not sure why the radio is not deactivated - perhaps because as it is getting charged via USB, there is no need to save the battery. So, I guess it is possible that we may disable Ace’s radio while connected to USB in the future. I will mark this thread as a feature request, and it will be seen by the relevant teams for consideration. Thanks for the feedback!

I hope this helps.

Incidentally, it is for moderators to decide when someone is off-topic - if you feel a post needs to be evaluated, please report it using the 3-dot menu to the side of the post. Please do not try to police threads yourself. Thanks.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

Ken_Griffiths

From a personal point of view - I hope that things are not changed too much here. If I connect Ace to my iPad Pro I hear it switch from its multipoint (two) Bluetooth connections to the wired connection and hear the earcon as it switches that connection. The Ace begins charging and the status LED switches to amber to indicate the Ace is charging. The LED switches to green when the Ace is fully charged.

In this wired state I am able to play from native Apps, like Amazon Music etc. (which shows the connection as wired) see attached. I can though still open the Sonos App and see the Ace and go into its settings and adjust EQ, Balance, Start/Stop playback etc. I assume that’s over the .BLE connection, rather than the original Bluetooth link🤔?

I just hope that things stay working that way - when I uncable the Ace I hear it switch back to the two (full) Bluetooth connections - multipoint in my case, as I hear it link back to my iPhone too aswell as the iPad Pro.

Corry P

Sonos Staff

Hi @Ken_Griffiths

Thanks for this - I just checked again and see the same as you. I guess I did not give the app sufficient time to realise Ace was connected in my last test!

So @SebMoi, it does indeed seem that the Bluetooth radio is kept on in order to provide you with settings for the headphones in the Sonos app - I honestly don’t know if we’d want to change this behaviour or not, but your feature request stands, nonetheless.

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

Ken_Griffiths

Just to say @SebMoi I wasn’t trying to impede your ‘feature request’ here, more the case that I like the way things work at the moment with the Ace and hope that doesn’t change too much from my own use-case perspective, but if users prefer to have a toggle option to disable the radios when in wired mode and not have the options to access the Ace settings via the Sonos App, or maybe not have the headset automatically connect back to devices over Bluetooth when the cable is removed etc. then I guess that’s fine - but would prefer it if users are given a choice here. I just much prefer the convenience of leaving the radios enabled at all times, with App access etc.

S

SebMoiAuthor

Hi @Ken_Griffiths

Thanks for this - I just checked again and see the same as you. I guess I did not give the app sufficient time to realise Ace was connected in my last test!

So @SebMoi, it does indeed seem that the Bluetooth radio is kept on in order to provide you with settings for the headphones in the Sonos app - I honestly don’t know if we’d want to change this behaviour or not, but your feature request stands, nonetheless.

I hope this helps.

So @Corry P

Thanks,

I think if it's only software, it's possible to add condition to stop bluetooth (ex : If wired and no pairing after 1 minutes, then stop bluetooth).

It's possible to add also a parameter inside application to say stop bluetooth at Sonos Ace.

And I confirm the level of wave is really very high if the Sonos Ace is not paired with the application by bluetooth.

In my work, I am currently surtounded by bluetooth transmitters (for battery management system)... I do not want to add any.

@SebMoi

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