How can the audio data being sent to the speakers be captured from an application?

Posted by witch on Stack Overflow See other posts from Stack Overflow or by witch
Published on 2010-03-13T08:32:33Z Indexed on 2010/03/13 11:35 UTC
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audio

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audio-recording

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Windows

Is there an API that is suitable for doing this? A possible application of this is for writing a visualiser, and to play with real time signal processing.

EDIT: The operating system in question is Windows. On Linux, a roundabout way to accomplish this is with Jack, but I'm hoping for a way to read the data in the audio buffer without having to couple apps to Jack.

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