simple iir filter implementation in C++ 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.
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:

SigPack: http://sigpack.sourceforge.net/index.html
Kfr: https://www.kfr.dev/

Cheers.