Spectrogram: Difference between revisions

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A spectrogram is a graph showing the distribution of energy between frequency bands.
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[[File:variable q spectrogram.png|256px|thumb|A spectrogram of a short song segment.]]
A spectrogram is a graph showing the distribution of energy between frequency bands over time.


The data that is necessary to create such a graph is gathered by transforming [[time domain]] ([[PCM]]) data to [[frequency domain]], e.g. using [[FFT]].
The data that is necessary to create such a graph is gathered by transforming [[time domain]] ([[PCM]]) data to [[frequency domain]], e.g. using [[FFT]].
[[Category:Signal Processing]]
[[Category:Technical]]

Latest revision as of 07:05, 1 July 2023

A spectrogram of a short song segment.

A spectrogram is a graph showing the distribution of energy between frequency bands over time.

The data that is necessary to create such a graph is gathered by transforming time domain (PCM) data to frequency domain, e.g. using FFT.