How to steal audio from specific application? [closed]

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I am trying to figure out how to capture the audio from a given software running on a mac, just like audio hijack does.

I'm aware that this is not the first question on the subject, but I'd like to better understand the possibilitie开发者_JAVA百科s on how to do it. Crete a user space driver is the only solution to achieve it?

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The best way that I've found is to get soundflower from cycling74.com. This basically gives your computer an internal interface that you can route to audio programs. If you then get a DAW like audacity you can choose soundflower as your audio input, set soundflower as your system audio output and record audio directly into your DAW.

GW