Waveform vs. Spectrogram — What's the Difference?

In electronics, acoustics, and related fields, the waveform of a signal is the shape of its graph as a function of time, independent of its time and magnitude scales and of any displacement in time.In electronics, the term is usually applied to periodically varying voltages, currents, or electromagnetic fields. In acoustics, it is usually applied to steady periodic sounds—variations of pressure in air or other media.

A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. When applied to an audio signal, spectrograms are sometimes called sonographs, voiceprints, or voicegrams.

The mathematical representation of a wave, especially a graph obtained by plotting a characteristic of the wave against time.

A graphic or photographic representation of a spectrum. Also called spectrograph.

(mathematics) The shape of a wave function represented by a graph showing some dependent variable as function of an independent variable. Category:en:Curves Category:en:Trigonometric functions Category:en:Functions

A visual representation of the spectrum of a sound changing through time.

The shape of a physical wave, such as sound, electric current or electromagnetic radiation, or its representation obtained by plotting a characteristic of the phenomenon (such as voltage) versus another variable, often time.

(astronomy) A visual representation of the spectrum of a celestial body's radiation.

The shape of a wave illustrated graphically by plotting the values of the period quantity against time

A photograph, map, or diagram of a spectrum.

A photographic record of a spectrum