Hello, I am working on an audio spectrum analyzer with
LPCXpresso54608 (Cortex-M4F).
I am working on a program to calculate the FFT spectrum of an input
signal.
All the functions from CMSIS library work fine but I don't understand
the length of the input and output vectors.
The ARM CMSIS official documentation is, in my opinion, a bit
confusing on this topic and I'd like to share my thoughts.
Here's an outline of my algorithm:
Start with a sample buffer of length N=1024 (Skip
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