igrell/audio_equalizer

A graphical audio equalizer using the Fast Fourier Transform written in C++ and Python.

Audio equalizer

Overview

This project implements an equalizer of audio signal on the human-perceivable spectrum of 20-20000 Hz with the use of Fast Fourier Transform (FFT), with the algorithm written in C++ and signal parsing/plotting written in Python.

Requirements

This project uses C++17 and Python 3, and as such will require:

• python3 interpreter
• Python libraries: tkinter, numpy, webbrowser, scipy, contextlib, pygame
• bash shell (default location: /bin/bash)

The C++ files come already compiled to an executable equalize file. However, if case of need, you can compile it yourself by invoking:

g++ -std=c++17 SignalSampling.cpp FFTSolver.cpp equalize.cpp -o equalize

Usage

Navigate to python_utils and execute:

python equalizerGUI.py

Note

This project was written as a part of a thesis for Bachelor's Degree in Computational Mathematics at Jagiellonian University in Kraków.

Acknowledgements

• Icon for the equalizer app was downloaded from: https://icons8.com/icons/set/equalizer