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I am programming the simplest way of implementing and IIR filter. However, I am struggling with the use of buffers. Do any of you have any simple implementation of an IIR filter implementing manually the convolution? I would like to have something simple, implemented on a function or something like that on C/C++.

thanks in advance.

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    $\begingroup$ Did you google IIR filter C++ source code? There are dozens of online sources out there. $\endgroup$
    – Hilmar
    Dec 1, 2020 at 16:33
  • $\begingroup$ I did but most of them are outdated or not working properly $\endgroup$
    – Gabriel Galeote-Checa
    Dec 2, 2020 at 8:41

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In my opinion, you could use a couple of easiest and more optimized solutions, unless you need only that filter and you want to avoid third party or extra library/files:

Cheers.

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  • $\begingroup$ Cool! I will have a look into it! $\endgroup$
    – Gabriel Galeote-Checa
    Dec 2, 2020 at 8:43

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