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Audio crackling - Link/AirLink

Level 3

Crackling noises are heard at certain sound frequencies when streaming via Link/AirLink. Especially human voices. The issue seem to be specific to Link. Playing Test sound on "Oculus Virtual Audio Device" via Sound panel also triggers this crackling noise after a few attempts. Can be reproduces with other sounds as well, like voice from the free Berlin Blitz app on Steam (even when watching gameplay on YouTube). It feels like there's some kind of audio buffer getting overflowed or something. No distortions when playing the exact same sounds via YouTube inside Oculus Browser (outside of Link). Or playing any standalone game for that matter.


I'm using Oculus v34 on Quest 2 and tried both v34/v35 PTC on PC.


What I tried:

  • Switching from my third-party USB 3.0 cable to provided charging Type-C(x2) cable.

  • Completely uninstalling Oculus software (removing Oculus folders in /Users/**) and reinstalling it.

  • Setting various bitrate settings in Oculus Debug Tool, as well as reverting to defaults (by setting everything to 0/Auto).

  • Updating BIOS on my motherboard to the latest version.

  • Forcing my MSI X570 motherboard to use PCI-E 3.0 for chipset and PCI slot.

  • Using DDU to completely uninstall Video AND Audio drivers, then Installing the latest NVidia display drivers.
  • Installing the latest chipset, integrated audio (Realtek) and LAN drivers from MSI support page.
  • Double-checking that "Oculus Virtual Audio Devices" is set as default Playback and Recording device.

  • Recording audio that produces noise on PC (by enabling "Hear VR Audio from Computer") and playing it back via Oculus browser from YouTube I confirmed that the issue is likely not hardware related, but an issue with Link.
  • Enabling "Hear computer audio in VR" and playing certain sounds on PC - triggers the same crackling via Link after a while. This also hints to some kind of audio buffer issue.
  • Removing all USB devices in Device Manager and restarting Windows.
  • Connecting over AirLink using 2.4Ghz router - the same crackling noise.
  • Changing priority of process OVRServer_x64.exe to High.
  • Different combinations of checkbox values in Oculus Virtual Audio Device speakers.phobos2077_0-1637615786342.png



Has anyone else encountered this?


I created a support ticket #3596583 but they just sent me to SteamVR support (via incorrect link, btw) despite this being a problem not specific to SteamVR apps.