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Plantronics USB Headset Stutters After Upgrading to 10.12.4

I've got a Plantronics USB Headset (a basic headset, http://www.plantronics.com/us/product/audio-478). I've used it on this and previous MacBooks for about three years with no problems. Today, after updating to 10.12.4, it started stuttering. It's bad enough I can't understand anything through it.


I am on an early 2015 MacBook Pro Retina, 13".


- Input and Output from the built-in audio is fine

- Output from a USB connected headphone amp is fine

- Other USB devices, like my keyboard, are fine

- I have two of these headsets, both exhibit the stuttering but both worked fine before the upgrade.

- I have reset the SMC and PRAM.

- I have changed which USB port it is plugged into including unplugging all other devices


I'm not sure what else to try at this point. Any help would be greatly appreciated.

MacBook Pro (Retina, 13-inch,Early 2015), macOS Sierra (10.12.4)

Posted on Mar 27, 2017 9:24 PM

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Posted on Mar 31, 2017 12:12 PM

I have a MacBook Pro Retina, 15-inch and a Plantronics 478 USB headset, and I found a temporary solution for myself. Not ideal but it fixed the stuttering after updating to Sierra 10.12.4.


Because this MacBook only has 2 USB ports (really disappointing discovery I might add ...ahem looking at you Apple), I was forced to buy a small USB hub containing 4 more ports.


I only get the stuttering when I plug the headset directly into native USB slot on the MacBook itself. For some reason when I plug the headset into one of the ports on the USB hub, the stuttering goes away and the sound is back to normal.


Hope this is helpful is some way.

49 replies

Apr 19, 2017 9:42 AM in response to jamesdmeacham3

You skipped one step, before executing the command in terminal you need to Disable SIP in the system disk.

To do that just restart you mac and hold cmd + R to enter in recovery mode.

Now from there open utilities menu and start the terminal. Execute this command: "csrutil disable"

Now again restart the mac normally, login to your user and try again with sudo infront of it.

Apr 20, 2017 7:14 AM in response to alexkochnev

I think the permissions need to be rwxr-xr-x (755 in octal) and owner should be root:wheel.


You can correct this with chmod and chown, but I think it is easier to just install the .kext from the update package using Pacifist with admin privileges and it will take care of everything.


If the .kext has the quarantine flag set up since it was downloaded from internet, that needs to be cleared as well with

xattr -d com.apple.quarantine /System/Library/Extensions/AppleUSBAudio.kext

Apr 25, 2017 10:48 AM in response to dstengel

Thanks for the prompt, I have a USB hub with Ethernet for my MacBook Air sitting on the desk, didn't think of trying it but it solves the problem, for now.


This really is pretty poor from Apple and needs an urgent fix, this renders all Macs useless for VOIP.


Interestingly I have a Jabra USB speakerphone which works normally, don't know why.

Plantronics USB Headset Stutters After Upgrading to 10.12.4

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