This allows, for example, the output of CamTwist to be fed into the camera for Google Meet, Skype, etc. They can create a virtual camera for other applications to use as an input video stream. Similarly there are programs that can do this with video, such as CamTwist on the Mac. The second application then selects a Microphone called BlackHole from which it gets the audio stream.) You select that and the audio output goes to BlackHole. (BlackHole etc appears alongside speakers and headphones as the output device. BlackHole and Soundflower are example applications on Mac that can connect the audio output of one program to the microphone of another, if you can tell the application to use different “speakers”. There are some 3rd party utilities around that make this possible, such as “Virtual Cable”.
That is, on Mac and WIndows you cannot just hook the audio/video output of program 1 to the input of program 2. It may be obvious to most, but it took me a moment to realize that applications can read from the microphone or camera, and can send output to the speakers or screen, but that does not mean you can do a UNIX pipe command between them. There are lots of interesting things you can do, but they don’t always all work together as you plan. It was interesting to see how the complexity can blow out pretty quickly. In this post I focus on some of the underlying technologies.
#DO A VIDEO SKYPE CALL FOR FREE ON MY MAC BOOK SERIES#
In my last post I talked about some of the decision process I used when exploring which video platform to use a series of online office hours for ecommerce.
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