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Thread: Bandpass filter usng FFT

  1. #1
    Join Date
    Jun 2001
    Location
    UK, Surrey
    Posts
    1

    Bandpass filter usng FFT

    I need to apply a bandpass filter to a set of data.
    Does anybody have a suitable algorithm

    David


  2. #2
    Join Date
    Aug 2000
    Location
    West Virginia
    Posts
    7,716

    Re: Bandpass filter usng FFT

    Maybe this will give you some ideas :

    http://www.smartelectronix.com/musicdsp/filters.php


  3. #3

    Re: Bandpass filter usng FFT

    Hmm,

    implementing a FIR-filter is not difficult. Use this to calculate your data.

    y(n) = sigma( a(n)*x(n-k) ) ; n = 0...m where m is the number of coef-1

    ( How can I get a math-symbol like sigma into a thread ??? )

    If you want a reday-to-use-lib go and get the free (!) Signal-Processing-Lib from Intel.

    So far ... Mario///


    ------------------------
    Mario www.klangwerker.de
    ------------------------

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