You can capture AVio directly into OBS without VLC (strongly advised) as follows:
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Open OBS
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With a scene selected in the Scenes section at the bottom of the OBS Studio window, click the + sign in the Sources pane, then Video Capture Device ; the Create/Select Source dialog appears.
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Give your new source a name (like “AV.io HD”) and click OK .
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Set the following options and leave the remaining settings at defaults (see image below):
– Device: <The name of your AV.io device, as listed> (e.g. “AV.io HD Video”)
– Resolution/FPS Type: Custom
– Resolution: 1280x720 (or whatever the output resolution of source)
– Use custom audio device: Checked
– Audio Device: <The name of your AV.io device, as listed> (e.g. “AV.io HD Audio”) -
Click OK