Spectrograms plot frequency against time to show both at once

Evidence

Figure 1.64 is a useful way of showing both the time and frequency char­ acteristics of a sound signal at the same time, called a spectrogram. In this representation the spectrum of a signal is plotted as a function of time, with frequency and time forming the main axes. The decibel amplitude of 15F Hz 13F Hz 11F Hz 9F Hz 7F Hz 5FHz 3F Hz Figure 1. — David Howard, Jamie Angus, coustics and Psychoacoustics, 490

Categorization

• DEFINE: Defines the spectrogram as a two-axis representation of sound.