Fourier for earphonophiles

Yes, we all listen to music. But in doing that, we're listening to sine waves. Back in the 1800s, Joseph Fourier showed how we can build up any complex wave, like a sound wave, out of a combination of sine waves. Square waves? Those are sine waves. Impulse? It's a combination of sine waves. Here, I go over these concepts as they pertain to audio and headphone users in particular. There's zero math in the video, just live demos. I also cover "minimum phase" and what this means for us and how headphones differ from speakers in rooms on this.