Hi,
Capturing screen seems a hot issue regarding audio synchronization.
It occur frequently when using screen capture tools, not only with AVS. Why? Can't tell you?!
But maybe you can add an audio time-shift ability so it is possible to adjust audio sync?!
Preferred accuracy: ms
Maybe when check the checkbox "listen to device" of StereoMixer, it might be possible to audit audio sync in realtime?
Totally exclude audio Sync issues when capturing screen is difficult to achieve, but I suppose you can reduce the risk, how:
start recording not before the video is running less than 5 sec and FreeUp memory by ending needless task via eg task manager, or via batch file using "taskkill"
When I do this, It occur less, and time-shifts are smaller.
Also welcome in Screen Capture:
Ability to change frame-rate and bit-rate.
On the other hand very user friendly tool