New Post: Spectrum Analyzer FFT

I'm trying to get my spectrum analyzer to display a more realistic curve.

At the moment most of the frequency band is at the bass end. Here is a clip (its only 620KB M4V format)
http://www.filedropper.com/fft

I calculate the FFT 2048 complex samples at a time
FastFourierTransform.FFT(true, m, complexClone);


Rather than post the code I have right now I'd rather just know the 'proper' way of converting the FFT data to 16 bars.

For example, do I need to use FastFourierTransform.HammingWindow?

Do I mix L and R this way? float fLandR = (float)Math.Sqrt(fL * fL [PLUS] fR * fR);