Getting Started with Audio Visualization

I saw an article today [ Audio Visualization: Sampling, Frequency and Fourier Transform ], taking a group of pillars in the upper left corner of Qianqian Jingting that dance with the music as an example, and deeply analyzed the behind-the-scenes principles, which is helpful for learning some audio Sampling, Frequency and Fourier Transform. The speech is very good, and the video of 3Blue1Brown, a mathematics student at Stanford University, is also quoted, which vividly introduces the principle of Fourier transform. It is very good: the introduction of the image: what is Fourier transform ? .