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Subject: Re: DSP: low pass filter

Re: DSP: low pass filter

From: Magnus Holmgren <>
Date: Sun, 14 Aug 2005 17:55:34 +0200

Tomas wrote:

> Ok, then the next problem is... how to make a lowpass filter if I have
> an FFT? (I've found some other FFT sources too)

What you get out of an FFT is a set of amplitudes for a set of
equal-sized frequency ranges. So just check the right bunch of
amplitudes. Wikipedia should explain the basics...

Received on 2005-08-14

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