Used for obtaining a visual representation of the FFT of a specified sample taken real time from the computer's microphone using the RtAudio API.

First makes sure you have installed the required libraries using:

sudo apt install libfftw3-dev libfftw3-bin librtaudio-dev libsfml-dev cmake

Then run:

mkdir build
cd build
cmake ..
make

And then execute the program in the build/ folder using:

./realtime-beat