Macbook pro 16" M1 pro 2021 popping sound OS 12.0.1

Hi, I just got my Macbook pro 16" M1 pro 2021 over a month. It is on OS v12.0.1. It is a great machine. But it developed some popping sound today. I played some Spanish guitar music for around 1.5 hours (not at the highest volume) then it randomly developed some popping sound on the right side speaker. When I lift the mac and tile to the right to listen closely, the popping sound is getting worse and constant, especially at the high pitch. When I put it down the popping sound still existing but less even when I put the volume to 4 bars. Apple support suggested to upgrade to OS to12.1. After upgrade the popping sound is gone, even at the highest volume. Is it possible that the OS upgrade fix the issue? (i.e. limited the frequency range?).

I see some discussion that the popping sound comes when cpu /memory is high. In my case, I only open the apple music nothing else.

Has anyone see the same issue?

Thanks

Posted on Jan 3, 2022 2:16 PM

Top-ranking reply

Singervienna

Level 1

8 points

Posted on Jul 26, 2022 6:36 AM

DON'T SEND IN YOUR DEVICES! It has nothing to do with hardware. It's a software issue. What you hear is rosetta not being able to keep up translating the audio-stream therefore loosing samples, which makes the clicking and pooping sound.

There are no solutions at the time being coming from apple. It has nothing to do with the hardware. It is an issue with rosetta, aggregate devices and/or buffering of the Audio.

There are some workarounds though. If you install any software core audio drivers (mixup audios' decibel, sonnox's listenhub or something similar) the problem goes away immediately and doesn't return when you set the sample rate buffers to a reasonable size. So unless you run nothing (not even one process) that needs rosetta, this problem will not occur anymore. Apple won't fix it and will hope complaints go away when in 2 or 3 years everything runs natively. It's a shame but that's how it's gonna be, I fear.

I am a professional audio engineer and read a lot about it in the apple dev forums, so if you dig deep enough you can find the causes and get a picture what's happening. Best solution if you need rosetta is using a third party core audio driver that buffers the audio after it is "created" by the os (grab's the zeroes and ones) and then hands it over to the speakers. This extra layer of calculation seems to introduce the necessary latency (slows the audio-stream down) so that rosetta can deal with it calculating it in "real-time".

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Macbook pro 16" M1 pro 2021 popping sound OS 12.0.1

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