Macbook Pro 16 inch speaker pulsating noise?

THIS WORKED! in Logic Pro X we changed Buffer Size up to 1024 samples and there is no pulsating sound anymore. It took a few minutes, but then the sound also stopped happening both in Garage Band and iTunes. Somehow the fix in Logic propagated to the rest of our sound applications.

Thanks for the tip!

Hi everyone.

Just thought I’d share my current situation with this issue. I noticed this galloping echo sound on the evening when my new Mac arrived and immediately phoned for a replacement model. I was shocked to find the issue was prominent again on my new machine which arrived yesterday. I didn’t even install anything, just opened GarageBand straight out of the box. I’ve now got two state of the art MacBook Pro’s in my possession with a horrendous defect.

It’s hard to believe this somehow escaped them, for a device which is sold with its new improved speaker quality being a huge selling point!

After phoning just about every person working for Apple I’ve managed to get to this.. I recreated the issue over the phone and the senior tech advisor acknowledged its existence. However, she said that there’s no record of this issue on their side. I find this bizarre as a few of you have mentioned that he have acknowledged an issue. She has forwarded the video evidence I sent to Apple engineers and they’re getting back to me tomorrow.

I have been offered a refund or a replacement, none of which I want. My work and life is on these machines, and for the price we pay we expect them to work.

I intend to keep the device, as I need it, and enquired on the phone saying that if the issue isn’t fixed after 12 months, I want a full refund or new replacement model (when the new Mac’s come out). The advisor said that if I can reproduce the issue, have evidence of it being there the day I bought it as well as all being logged on my case number, I would be covered under the warranty and consumer law. This was all on the phone, I’m going to ask for clarification and a statement in writing when they next call me. (I’ll send updates about this in here as I think it’d help you all and put your minds at ease)

Its good (well, bad) to see so many others with the issue. Hopefully if I put this thread under the advisors nose they can escalate it. For a device that is sold as being the best audio production machine on planet Earth, it’s pretty **** poor.

That's interesting. It won't allow 48k while Garageband is open. Every time I try (I tried like 20 times) it would go back to 44.1. So I think this is a solution as long as you don't intend to open GarageBand again...

It's exclusive to the 16" macbook pros. So much for a top of the line product.

When I spoke with apple about it here in the US, they act like they've never heard of this issue before even tho many of you and others have spoken to them. I'm glad they are saying it will be a software update, but to me they just want me to continue to run pointless tests and spend hours on the phone.

Yes, this is the same problem that I have. And it only appears when using speakers and not headphones. Did you hear back from Apple Support on the fix?

https://support.apple.com/en-gb/HT201295

This worked for me !!