This is a project that I made for fun that displays audio on a visualizer.

Currently, the visualizer is based on a 8x20 grid of LEDs. I plan on making this more flexible in the future, but for now, this will have to do.

Based on Lightshowpi, it currently takes audio in from shairport-sync input, and outputs it to the LEDs after doing a bit of audio processing. Direct mic input is in the works, but for now shairport is the best way to stream audio.

This project requires third party libraries to run, which are located in requirements.txt. I would recommend a virtualenv in order to keep your global python path clean. On mac, install this using homebrew using brew install virtualenv On Ubuntu, install using sudo apt install virtualenv. It may already be installed on 16.04.

Then to activate virtualenv, run source <virtualenv_name>/bin/activate. You should see a prompt similar to

(equalizer) ➜ cd-router-dna-tests git:(master) ✗ in zsh. The important part is the part in the parentheses which specifies your current virtualenv.

Once you are in your virtualenv, run pip install -r requirements.txt to install necessary libraries.

To run the library, simply use ./equalizer.py to start the equalizer. There are also flags you can use to modify the behavior of the equalizer.

optional arguments:
  -h, --help       show this help message and exit
  --use-shairport  Indicates whether audio will be played over shairport or
                   not