Hello,
I've found so many threads on the FFT for arduino but quite frankly, I'm kind of confused. There is a lot of information and I'm not familiar with audio and signals and sampling and all that jazz. I've downloaded many FFT libraries, but when I open them up, I'm just completely confused on how they work. From what I've gathered, they:
- Take a certain amount of samples and store them in an array (128 or 256)
- do some jazz
- are 8 bit or something
I just want to use the information, process it and then shift it out to make a simple FFT spectrum analyzer.
How would I accomplish the FFT side?