bboy7895 Hello,
I don't get any audio lag at all when using regular Stereo or Spatial audio for both Gaming and watching videos. Even the videos in a Facebook 360 TBE 8.2 format provided in the Original Studio Matroska container (.mkv video files) Even with 10 bit VR videos. Or playing heavy games like Half Life Alyx with Steam Audio HRTF or other VR games with binaural audio.
The experience is the same for both my previous headset (Quest 2) and current headset (Quest 3).
I use the following hardware/ software:
My current PC Specs are: Intel Core i9-14900K/ RTX 4080/ 32BG DDR5 2800 MHz Memory.
Quest 3 up to date with latest V72 update. I don't have any Games, Apps or files installed on it currently after I am done many testing/ experiencing with it.
JSAUX Oculus Link 2 in 1 Connector and Charger for Quest 2/ 3 connected to USB 3.0 port directly on the Motherboard, NOT on the PC case ports, be aware of that! As I had awful experiences with them.
Windows 11 Pro Version 24H2 up to date with all drivers and have the free HEVC Codec installed from Microsoft store (HEVC Video Extensions from Device Manufacturer) NOT the 1$ paid one from Microsoft, which is awful and not always working BTW. I also have the AV1 Video Extension from Microsoft Store. I don't have ANY other video codecs/ LAVFilters installed on my PC. Believe me, you'll save yourself MANY problems.
Official Meta Quest Link App and SteamVR and enables the "Oculus Virtual Audio Device" or "Steam Streaming Speakers" depending on the game and use scenarios. I don't use Virtual Desktop or any other Apps.
DeoVR from Steam with "Direct show" turned Off. Don't use this garbage, always use the hardware accelerated playback engine in any VR video player which uses GPU decoders for example.
As I'm not familiar with Pico headsets unfortunately, I don't know about their PC audio drivers quality and stability compared to Meta, so I can't help with that.
Here is what I humbly can help with (some obvious, some advanced):
1- Just for a simple and quick testing. Try to play the video file with the Windows Modern Media Player App first in the regular Windows desktop mode, if it worked perfectly in terms of video smooth playback and the audio is supported and synced perfectly with the video (You'll get a Notification if the Audio is not supported) then it should play perfectly with DeoVR and any other VR video players since all of them uses/ prefers the newer "Media Foundation Codecs" instead of the older "DirectShow Codecs".
2- Be sure of the video file you are playing is encoded with HEVC or AV1 and not any other garbage. Believe me, there are STILL Studios using dumb codecs for high resolution video files which are not supported by the CPU, APU (Accelerated Processing Unit) or GPU decoders. You can use "MediaInfo" to check the video codec. Avoid ANY video that's not encoded with HEVC or AV1 when its resolution is higher than 4K. Convert it yourself if necessary, to do that, I suggest the free version of "Any Video Converter" and set its decoding setting to HEVC.
3- Uninstall ANY Codecs/ Filters you have and just keep HEVC and AV1 video extensions from Microsoft Store. Sometimes you'll need third-party softwares to do this unfortunately as you should remove whatever values they left in Windows Registry, too.
4- Use a high quality cable to connect your headset to PC directly to the PC Motherboard's USB 3.0+ Port as I mentioned previously. I suggest the "JSAUX Oculus Link 2 in 1 Connector and Charger" worked great with my Q2 and still work great with Q3.
5- Be sure that both your PC hardware and OS/ Software doesn't have any conflicts or weird issues/ activities and you have the latest Pico 4 Ultra firmware and Pico Connect up to date with all its virtual audio drivers and be sure the "Direct show" is turned Off in your VR Video Player Settings.
Sorry for the long post, I know we all want a simple, short answers and quick solutions but it's not always the case unfortunately 🙁
Tell me how things turned to you after you try these steps and if we can spot the issue together.
Best of luck and best regards.