Spectrogram explained

A Spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. A spectrogram is usually depicted as a picture with amplitude displayed by varying the color or brightness. In automotive acoustics, a spectrogram is often referred to as Colormap or Campbell plot. Learn more about how a spectrogram is plotted and what are the benefits of viewing data in such a plot in greater detail in this video. How to interpret a Spectrograph:    • How to interpret a Spectrograph