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I get this error all the time as well (usually with error code -12780). I have a feeling it is related to files that have small errors (like missing keyframes, or a videotrack that is out of sync with the audiotrack). Unfortunately the only solution i have found thus far is re-encoding the video and trying again (using a tool like ffmpeg or Handbrake) or ...


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There is a shareware/free software designed specifically for this task called BlackHole which I use on a weekly basis. Here is the developer's website and here is his project on GitHub.


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It’s not clear if you want a good tool that lets you choose which audio gets recorded or a tool to make a patch panel to change audio routing. For either of these “good general purpose tools”, I’m a fan of https://rogueamoeba.com/loopback/ http://www.telestream.net/screenflow/overview.htm Based in how you define internal and external audio, a free or less ...


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This happened maybe because your computer/CPU was not powerful enough for the large .mov file. If the .mov file was encoded in H265/HEVC, your computer should be more powerful to process this highly-compressed video. As for the solution, you can try to transcode your MOV video, or compress it to a smaller video. And in the future, if you need to record a ...


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Here in 2020 - macOS Catalina and later allows the built-in /usr/sbin/screencapture tool has options for specifying the capture area. And if you use it graphically, it remembers the last selection so unless you change it, you can relaunch the app and get the same settings without the details below. -R<x,y,w,h> capture screen rect -v capture ...


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