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To activate HD in Zoom please go to Settings -> Video -> Enable HD. For me it really takes 640x480, but this is what Zoom developers decided to use (see below). To see what resolution Zoom takes please right-click on big blue button. This is advanced option as well as above one. Normally you should use this feature if you have many CPU cores (4+) and FPS in Skype/Zoom is lower than expected. “Asynchronous frame transmission” - activates asynchronous mode for sending video to Man圜am virtual camera (to e.g. Use this option only if you have described capture issues, otherwise keep it off as it slows capturing. Since it is not possible to detect how window is rendered, Man圜am has built-in list of popular apps that use this feature, including Chrome, MS Office, Skype, etc. Capturing such windows may result in black video except window frames.
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HI Hardware Accelerated Windows” - some apps like Google Chrome use hardware acceleration to render their windows (we call it hardware accelerated windows).
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