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Thread: Biquad Filter Transfer Function

  1. 10-17-2016, 06:57 PM #1
    steven32bits
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    Biquad Filter Transfer Function

    I would like to know if there is documentation on the transfer functions used specifically for the band-pass and band-stop (notch) filters?
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  2. 10-17-2016, 08:21 PM #2
    drmartin
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    The source code for those filters in the audio library on your system is found in filter_biquad.cpp and filter_biquad.h.

    The comments in those files say

    // Compute common filter functions
    // http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt

    so I would refer to the above link for the nasty details.
    Last edited by drmartin; 10-17-2016 at 08:29 PM.
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  3. 10-18-2016, 03:21 PM #3
    steven32bits
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    Thank you I had seen it before but I had forgotten where it was and I couldn't find it again. These are the nasty details I was looking for.

    Thank you
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