🚀 go-pugleaf

Here's a question from a computer scientist (EE wanna-be) who likes to  
tinker.  Lately I've been building things with logrithmic dot/bar display  
drivers. (You know how Computer Scientists love flashing lights :-)).   
Anyway, it occurs to me that using some combination of resistors and  
capacitors in an RC circuit one should be able to filter out all but a  
given frequency from an analog audio source.  The ultimate goal here would  
be to set up a number of filters at different freqs. and send the output  
of these filters to log. dot/bar display drivers yielding a spectrum  
analyzer.

Can someone illuminate me as to how figure out what values to use to get a  
specific frequency isolated?

thanks in advance.


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