[tech] AVR

Nick Bannon nick at ucc.gu.uwa.edu.au
Sun Mar 26 14:17:28 WST 2000


On Sun, Mar 26, 2000 at 01:12:42PM +0800, John West McKenna wrote:
[...]
> is measured in (low) Hz, and the input you're interested in is only the
> bass, how much CPU grunt can you need?

Well, we could use a hardware-accelerated FFT, otherwise known as
filterbank, otherwise known as a few resistors and capacitors. ::-)
One low pass filter might be all we need. The software then comes down
to edge or peak detection.

Nick.

-- 
  Nick Bannon  | "I made this letter longer than usual because
nick at it.net.au | I lack the time to make it shorter." - Pascal




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