sinus wave of fft

Jun 18, 2011 at 10:26 PM

does anyone know how to create a sinus wave out of the fft data?

I cant find anything >.<

Coordinator
Jun 19, 2011 at 8:35 AM

I'm not sure what you mean. Do you want to do an inverse FFT?

Mark

Jun 20, 2011 at 9:23 PM

something like that http://s7.directupload.net/images/110620/9hg33go9.png

How to calculate that what name does it has? Do you now any websites or something else that describs how to calc something like that.

And how to draw that very efficient

Coordinator
Jun 22, 2011 at 8:10 AM

that's not drawn from the FFT, it's just the waveform. NAudio does have some waveform drawing code, but it is not super efficient.

Mark

Jun 22, 2011 at 3:53 PM

oh really wheres the difference?

And another question what would be an efficient code. It should not look like it is lagging. So i may would have to return an image like bass.dll does?