Install librtfilter1 by entering the following commands in the terminal:
sudo apt update sudo apt install librtfilter1
Description:
realtime digital filtering library
rtfilter is a library that provides a set of routines implementing realtime digital filter for multichannel signals (i.e. filtering multiple signals with the same filter parameters). It implements FIR, IIR filters and downsampler for float and double data type (both for real and complex valued signal). Additional functions are also provided to design few usual filters: Butterworth, Chebyshev, windowed sinc, analytical filter... . One of the main differences from other libraries providing digital signal processing is that the filter functions have been specifically designed and optimized for multichannel signals (from few channels to several hundred).
Homepage: http://cnbi.epfl.ch/software/rtfilter.html
Version: 1.1-4
Section: universe/libs