USB Sound garbled since upgrading to Sierra 10.12.4

[nomad411]

I finally have everything mostly under control, but I lost the ability to use my USB headset. The sound coming out of it sounds like it's going through a Wawa filter.. I have not been able to figure it out, after trying every recommendations and adjustments I could find on here..

My sound card works fine using regular headphones. And a separate USB microphones works well as well.

I'm at a loss as to how to proceed and would appreciate any clues or hints you might have to help me pursue debugging this issue.

Thanks

 

[nomad411]

Ok, it's looking like a problem on the OSX side after all https://www.******.com/r/apple/comments/62bp93/macos_sierra_10124_screws_up_usb_audio/

 

[nomad411]

Yes, definitely on Apple to fix it.. Man! So many days tryign to fix this thinking I'd messed up something! Grrr https://discussions.apple.com/message/31563193?start=15&tstart=0

 

[vulgo]

Yes, definitely on Apple to fix it.. Man! So many days tryign to fix this thinking I'd messed up something! Grrr https://discussions.apple.com/message/31563193?start=15&tstart=0

I was able to get USB audio to work with my Sound Blaster Play! 2 by replacing AppleUSBAudio.kext in /S/L/E with the version from 10.9.5

 

[nomad411]

Wow.. can you share that kext or point me to where we can download it? I'd love to try

 

[nomad411]

Though, for me, it worked in 10.12.3

 

[kiiroaka]

Apple supposedly knows about the issue. Hopefully they will get an update out soon to remedy the problem. I suspect that it is a USB-C driver problem that affects USB3.0 ports.

 

[oldMac7]

Apple supposedly knows about the issue. Hopefully they will get an update out soon to remedy the problem. I suspect that it is a USB-C driver problem that affects USB3.0 ports.

I also have the issue through USB2.0 using my m-audio MobilePRE preamp from Mac Pro 5,1.
Sound out is like a severed cable intermittently making contact.

 

[dazz]

yes same problem on a config i have, Tapco usb interface doesn't work properly anymore, but USB Logitech headset works properly. And Tapco audio interface works on Macbook correctly...