Here connected audeze (Port 8: Dev 8) and xd05p ( Port 1: Dev 7). It
share bus 3, but only keyboard and mouse here. i have no other usb.
Cracks exists even if only one usb audio is connected at a time. And the
major thing - it was fine before upgrade.

/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
    |__ Port 5: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
    |__ Port 5: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 5: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 6: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 3: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 
1.5M
        |__ Port 3: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 
1.5M
    |__ Port 8: Dev 8, If 0, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 8: Dev 8, If 1, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 8: Dev 8, If 2, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 8: Dev 8, If 3, Class=Human Interface Device, Driver=usbhid, 480M
    |__ Port 9: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 7, If 1, Class=Audio, Driver=snd-usb-audio, 480M
        |__ Port 1: Dev 7, If 2, Class=Application Specific Interface, Driver=, 
480M
        |__ Port 1: Dev 7, If 0, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 12: Dev 6, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 12: Dev 6, If 2, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 12: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 12M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M

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https://bugs.launchpad.net/bugs/1930550

Title:
  usb sound devices crackling

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