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XAudio2 - Spectral analysis?

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Hi there! I want to see a Sound Spectrum, like this one in my game: [IMG]http://i50.tinypic.com/snorqv.jpg[/IMG] I need both, the left and the right one. But the left one is more important. After using google, I found out, that I have to use a "FFT". This seems to be pretty complicated :( Is there any easy sample code, which shows how to do it with XAudio2? Thanks for helping me! :) [Edited by - WuTz on February 14, 2010 10:02:42 AM]

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