Volume triggered Muffled Speakers - 2016 MBP 15” Fault (w/ Video Demonstration)

2017 15" macbook pro with touch bar. Started experiencing this issue about 6 months ago (I have two posts in this thread already about it).

I finally took the laptop into the Apple store for repair, and they replaced the top case assembly, as others have reported, plus the logic board itself. By my understanding, this means they replaced everything on the computer except for the chassis and the display. If I hadn't purchased the extended AppleCare when I bought the laptop, it would not be worth the expense to repair.

I can confirm the issue is still there.

It think it is even worse, because some times the sound is completely dead after waking up from standby and cannot be repaired by "sudo killall coreaudiod". Wether Chrome, iTunes nor any other app play any sound. I have to restart the CrapBookPro to get sound again.

Also with a similar problem on my 2017 MacBook Pro.

The problem is not exactly the same but very similar.

The sound does not become muffed, instead, on the same conditions, the speaker makes a pop sound as I increase the volume and after that the quality of that speaker is drastically worse even if I decrease the volume.

It kind of sounds like the speaker lost the base.

Had the problem earlier this year and got it repaired. They replaced the entire top-case of the computer.

Today the same problem occurred again (computer out of warranty by now)

Apple should really acknowledge this problem and find a solution quickly!

We paid a lot for this computer.

Should also refer that the first time I had this problem, both speakers suffered from this.

This time only the left speaker has this problem.

Same problem for me. I have a 15" Late 2016 MBP w/ Touch Bar, running macOS Catalina 10.15 (Up to date as of the writing of the post–I just installed the Oct. 15th supplemental update).

Often times, when I am watching a video on YouTube, the audio coming from the internal speakers will just randomly get "muffled", and stay that way for a period of time. I am not sure what causes it to happen or when/why it stops... and it doesn't seem to happen when I am streaming on a site like Netflix or Xfinity Stream though...? Very strange. I really need this fixed as the issue tends to flare up when I am at work. I need to play a videos at a decent-enough volume for everyone in our small office or in a small conference room to hear on a fairly regular basis and it's quite frustrating when the audio goes haywire halfway through–and stays that way.

Plus:

I am also having the issue that many others on this thread have referenced regarding the keys on the keyboard getting somewhat stuck or blocked... some keys, seemingly at random, will cease to have the amount of travel they are supposed to. With this keyboard, it's not like I can just easily use a pressurized air canister to push out any debris or dust that might be causing the issue like I used to on my 15" Early 2011 MBP. Dust or debris are likely the culprit because the problem is never permanent.

Additionally, I get an issue where keys tend to double tap even though I only hit them once (For example: every time I hit a given key, say the "b" key, I end up with "bb"). This issue tends to last on average for about a week.

Both of these keyboard issues are extremely frustrating... imagine typing in a password and not knowing if a keystroke is A. registering or not, or B. if one is doubling up on its own.

Hi everyone.

I have MacBook Pro 15 inch 2016 - with same issue muffled speakers that trigged by volume control.

Just came back from apple store appointment - the guy went through test of my Mac and confirmed that the issue is speakers it self and will need the whole bottom housing replaced which includes new keyboard, new battery and etc.

Over all he said it’ll cost me £408 just because my Mac is out warranty !!! That’s ridiculous I have paid over £2k just Two years ago and my Mac is in very good condition and by no means this issue is caused by regular use ! I’ve got a 8 year old thinkpad that still works 100 %

Apple needs to address this issue and offer free repair - we spend a lot of money on Apple tech.

Im not happy with a apple lately.

Hi Matt,

did you solve the issue? I am having the same issue now and have the same late 2016 mbp 15 with touchbar. Thanks.

Hey,

I had this exact same problem with a 2017 15" MBP. The repairer ended up replacing the top assembly including keyboard and speakers and its fixed the issue.

Good luck with yours!

Same issue here. Apple, please address this.

Same issue with my son's MBP. The MBP is just a month out of warranty and they offered to fix it for $400. Has Apple covered this for anyone that's out of warranty?

That’s insane. This isn’t User inflicted damage, and a restart of core audio fixes it temporarily.

I would escalate this to the store manager.

Still hoping for a software fix here.

Heading to the Apple Store on Saturday to see what is happening.

Keyboard issue as well. This machine really is trouble... 4 issues and 2 replacements already.

This is also happening to me, trying Bryan's solution fixed only 1 speaker, not both, this is weird and frustrating, I find it odd that so many users are experiencing this at the same time.

I took mine yesterday to an authorized dealer and immediately he told me: "ah, we need to service it. iIts probably the board"

Maybe it happened already with some other custo

Stop sending

On Sat, 6 Jan 2018 at 9:18 AM, Apple Support Communities Updates <

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