FAQ: Advanced sound capture

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Usually our users use built-in or external microphone as sound sources. But sometimes user would likes capture sound from system output. There are examples for it: capture sound from YouTube-video or sound from game. So let explain how do it.




Step 1: install SoundFlower 

For the task you should install open-source software called SoundFlower.

project page:https://github.com/mattingalls/Soundflower/releases/

So download package from download link and install it step-by-step.  Please use right-click menu for open package (see picture)




Step 2: configuration 

 a) open Application --> Utilities --> Audio MIDI Setup


b) in bottom-left corner click "+" and select "Create Multi-Output Device"




c) so you have  "Multi-Output Device". Select it and check checkbox as on picture.


d) make new device as system output


Step 3: usage in JustBroadcaster

Use "Soundflower (2ch)"-audio source for capture system output.



Of course you can mix built-in microphone and "Soundflower(2ch)":






Be aware: we recommended use headphones for this case because you can get auto-echo 
(see about echo)


Example:







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