Sound refers to waves generated by vibrations propagating through media such as air, with core parameters as follows:
Frequency (Hz): Determines pitch. Low frequency corresponds to low-pitched sound, while high frequency corresponds to shrill sound.
Amplitude (dB): Determines loudness. Larger amplitude generates louder sound.
Time-domain waveform: Variation of sound signals over time.
Frequency-domain spectrum: Energy distribution of sound signals across different frequencies.
Sound visualization methods are generally realized based on the above parameters, combined with signal processing technologies such as Fourier transform and computer graphics.

(1) Time-domain Visualization
(2) Frequency-domain Visualization
(3) Joint Time-Frequency Analysis
(4) 3D & Dynamic Visualization
(5) Psychoacoustic Visualization