Capture card audio desync - only fixed by toggling "Audio Buffering"

splatfest

New Member
Capture card: EVGA XR1 Lite
OS: Windows 10 (19043.1889)
Log file

i got a capture card a while ago, mainly intending to use it to play Nintendo Switch games on my other monitor, and to stream them for friends to watch.
when i capture the Switch in OBS, if it's been long enough since i last captured it in OBS, or if i un-dock and re-dock the Switch, then the game audio will, sometimes strongly, be desynced with the visuals.
the only solution i've found that fixes this is toggling the "Audio Buffering" setting - by this, i mean changing it from whatever it's currently set to, to the opposite setting. (e.g: if i launch OBS and Buffering is set to Disabled, then enabling it can fix this, and vice versa. the Auto-Detect option doesn't help from my testing.)

is there any reason why this would happen, and is there a way to fix it? i've tried searching this forum for this before and haven't really found anyone else with this problem, or any solutions that have helped fix mine.
i have the Audio Output Mode set to "Capture audio only", "Use custom audio device" toggled on, and said audio device set to the XR1 Lite's capture box.
 
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