Spectrogram: Difference between revisions

Revision as of 02:01, 6 December 2021

Revision as of 05:23, 17 January 2022

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{{short description|Visual representation of the spectrum of frequencies of a signal as it varies with time}}

{{redirect|Sonograph|the musical recording|Sonograph (EP)}}

{{for|the scientific instrument|SpectrographOptical spectrograph}}

[[Image:Spectrogram-19thC.png|thumb|400px|Spectrogram of the spoken words "nineteenth century". Frequencies are shown increasing up the vertical axis, and time on the horizontal axis. The legend to the right shows that the color intensity increases with the density.]]

[[File:3D battery charger RF spectrum over time.jpg|thumb|400px|A 3D spectrogram: The RF spectrum of a battery charger is shown over time]]