FFT Analysis for Dummies 
FFT Analysis for Dummies 
Mar 27 2010, 21:41
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#1


Group: Members Posts: 248 Joined: 12May 09 From: New Milford, CT Member No.: 69730 
Folks,
I'd like to learn more about FFTs. I'm not a math guy, so I imagine I'll never fully understand all the nuances. But I'd like to try anyway. I understand the general concept, that an FFT shows how much energy is present at different frequencies. What I'd like to know is how to set the various parameters such as FFT Size and Overlap, when to use the different types of window smoothing and why, and so forth. Below is a list of settings in the Rightmark FFT analyzer with my associated questions, and hopefully this is a good place to start. FFT Size: I understand that the higher the number, the better the frequency resolution. So why is this I realize this is a lot to ask! If anyone knows of a good newbielevel tutorial that explains this in plain English with minimal math, I'd love to see it. Everything I've found through Google starts right in with math that's way over my head. Ethan  I believe in Truth, Justice, and the Scientific Method



LoFi Version  Time is now: 28th February 2015  20:20 