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Bose investigation concludes QC35 firmware update didn’t break noise cancellation

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Bose is bringing an finish to the long-running saga of complaints relating to noise cancellation points with its Quiet Consolation 35 and Quiet Consolation 35 II Bluetooth headphones. After spending months trying into stories of lowered NC efficiency — one thing many shoppers have blamed on firmware updates — Bose has concluded that firmware isn’t answerable for the perceived drop in noise cancellation effectiveness. However it’s going to let QC35 house owners downgrade again to older firmware in the event that they need to, which is an possibility that the corporate had beforehand supported, however later pulled amid all this controversy.

As famous by Gizmodo, Bose printed a long, in-depth forum post about its findings on Thursday. “After we launched QC35 I and II, we set stringent specs for noise cancelling efficiency,” the corporate wrote in its report. “By way of all of our investigation and testing, we’re assured that firmware 4.5.2 didn’t have an effect on the noise cancelling function.”

The corporate performed intensive lab testing and went as far as to go to some clients at house to look at them utilizing the QC35 and QC35II headphones. “This sturdy analysis of customer-returned models didn’t reveal any points with noise cancellation efficiency, and Bose was not in a position to replicate the considerations of our clients,” the report says.

A number of the {hardware} that Bose used to check the QC35 and QC35II headphones.
Picture: Bose

However since there was nonetheless a disconnect between buyer suggestions and its personal findings, the corporate wasn’t glad to finish the investigation there. So it went additional and sought out unbiased testing by “a third-party acoustics take a look at laboratory.” Once more, the up to date 4.5.2 firmware confirmed no indicators of being the offender behind degraded noise cancellation.

So what’s the issue, then? There’s received to be one thing occurring that created this refrain of complaints, proper? Nicely, Bose has an evidence. Within the few small circumstances the place it did discover a measurable distinction in noise canceling high quality, the corporate says the ear cups weren’t totally snapped on; Bose says lacking even one of many 10 tabs could make a distinction. Third-party ear cushions had been additionally discovered to “negatively impression passive discount efficiency” and put the headphones out of spec, and Bose additionally observed that some models from clients had mechanical harm — probably from on a regular basis put on and tear.

“Our full engineering evaluation decided that the degradation in all circumstances was the results of {hardware} associated points with ear cushions, aftermarket elements, or mechanical integrity. As soon as once more, the firmware replace 4.5.2 was not discovered to be the reason for any degradation in general noise discount efficiency.”

In response to all of this, Bose is updating its testing procedures, bettering its firmware replace web site, and (briefly) giving clients the choice to downgrade in the event that they so select — even whereas insisting that firmware was by no means the issue. QC35II house owners can downgrade to 4.3.6, and the unique QC35 can return to 2.5.5. “If you happen to want to make the most of this downgrade possibility, we advise you to take action as quickly as doable,” Bose stated, and the corporate stated it encourages all clients to stay updated on the most recent firmware. It additionally made the above video for troubleshooting noise cancellation issues.

Take all of it in, and I feel it is a fairly commendable job from Bose in attempting to seek out no matter downside has been irritating folks. The corporate took a very long time to deal with the preliminary buildup of complaints, but it surely’s onerous to argue that Bose didn’t put in some severe work right here. To that finish, Bose has posted a forum thread where customers can discuss the latest report. Some are appreciative of the corporate’s effort, however others nonetheless assume Bose has missed the mark and say the lowered noise cancellation concern stays unresolved.

The general takeaway is that this: in case your QC35 or QC35II are working properly, possibly simply attempt to preserve them on no matter firmware they’re operating for so long as doable if you wish to keep away from this headache.

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