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Audio glitches with USB headset after upgrade to macOS Sierra 10.12.4

Hi,


I am using a USB headset (a Plantronics 478) with my MacBook Pro Retina 2015, and I am experiencing some glitches since I've upgraded to the latest version of macOS Sierra.


The glitch affects the audio input as well as the output. In terms of output, the sound "flickers", as in the audio goes silent and full volume many times (4 or 5) per second which renders the device completely unusable.


The problem goes away when I roll back the laptop to an earlier version of macOS Sierra which tells me there is an audio driver issue with the latest update.


I've done a PRAM and SMC resets and the problem still persists.


I am wondering if other people are experiencing the same problem.

MacBook Pro with Retina display, macOS Sierra (10.12.4), Plantronics 478 USB headset

Posted on Mar 29, 2017 12:11 AM

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Posted on Mar 29, 2017 8:46 AM

I've got the same issue with a USB Logitech H340 headset. Stuttering and choppy output regardless of source.

Tried it on different Mac's and even tried new headset new from package and same result. Works fine on 10.12.3.

Tried p-ram, 10.12.4 re-install and changing Audio Midi settings to no avail.


There's a new AudioAUUC.kext extension installed so it might be that one. I've raised a call with Apple so we'll see what they say.

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Audio glitches with USB headset after upgrade to macOS Sierra 10.12.4

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