The Multi Channel Analyzer (MCA) is an easy-to-use, graphical signal processing software for use in teaching. In the graphical user interface, signal processing blocks can be connected together and their parameters can be varied easily. The MCA can be downloaded via the links below. If you already have a working Python installation, you can install the MCA with

pip3 install git+https://github.com/emtpb/mca.git

and start it by calling mca from the command line.