Signal processing

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2 resources

But What Is the Fourier Transform? A Visual Introduction
▶ YouTube Single video

But What Is the Fourier Transform? A Visual Introduction

3Blue1Brown · YouTube

An animated visual introduction to the Fourier transform and how it decomposes a signal into its constituent frequencies.

Difficulty: beginner
Think DSP
⬡ Website Textbook Interactive tutorial

Think DSP

Allen B. Downey · Green Tea Press

A free Python-based introduction to digital signal processing, teaching Fourier analysis and filtering through code and sound.

Difficulty: intermediate