I am curious if anyone has experience building a standalone application that captures the Stereo Mix (e.g. “What you hear”) to apply effects to it?
I am looking to implement such functionality on both Windows and MacOS X.
For Windows I should be able to use WASAPI (https://msdn.microsoft.com/en-us/library/windows/desktop/dd370844(v=vs.85).aspx).
I haven’t done in-depth research for OSX yet but it’s likely possible too: http://www.rogueamoeba.com/audiohijack/
If anyone has experience doing this, were you able to capture the normal audio and replace with your own processed sound on the fly? I am concerned about being only able to record and replaying later, but not being able to process the audi on the fly.