General > General Technical Chat
FFT - Spectrum analyser - math illiterate!
jonpaul:
Our work on history of speech and signal processing:
FFT RT analyzers for pitch, formants, speech spectrograms.
Easily avail pgms for PC, W10 etc.
Enjoy,
Jon
EPAIII:
If the end purpose is just to have a pretty, dancing light (LED) display that more or less corresponds to the 32 various audio frequencies, why on earth are you using Fourier transforms?
32 OP amps, each forming a band pass filter then a gain stage so you can dial each one in and finally an audio/vu meter circuit driving the LEDs.
Yea, yea, yea, I know it isn't digital. SO WHAT? It WILL work. And it's a lot easier to design.
Nominal Animal:
--- Quote from: EPAIII on November 13, 2022, 05:45:27 am ---Yea, yea, yea, I know it isn't digital. SO WHAT? It WILL work. And it's a lot easier to design.
--- End quote ---
I agree. You should always go the easiest route. Why do something if you can't profit from it?
By the way, anyone interested in a lightly-used granny? I'd be willing to sell her for a fiver; I don't have enough of a use for her anymore.
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