# Adding color to a spectrogram and making it round

**URL:** <https://discourse.processing.org/t/adding-color-to-a-spectrogram-and-making-it-round/26138>\
**Category:** Libraries\
**Tags:** homework\
**Created:** [December 11, 2020, 1:33pm UTC](https://discourse.processing.org/t/adding-color-to-a-spectrogram-and-making-it-round/26138 "2020-12-11T13:33:21Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [December 12, 2020, 4:52pm UTC](https://discourse.processing.org/t/adding-color-to-a-spectrogram-and-making-it-round/26138/4 "2020-12-12T16:52:15Z")

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Hello,

Related post:

> [@Drawing a spectogram 2D (or 3D) from a recorded audio](https://discourse.processing.org/t/drawing-a-spectogram-2d-or-3d-from-a-recorded-audio/25708/20):
>
> Hello, I was able to add a few lines of code to the Processing sound library examples and do this: Upper left is the FFT plot of amplitude (y) vs frequency (x) with color added to amplitudes for each frequency. Lower left is time (y) vs frequency (x) with color added to amplitudes for each frequency. Right side is frequency (radius) vs time (angle) with a rotating sweep of the same data from lower left plot. Time was updated each frame. I am posting this to demonstrate that…

I did this with the Processing sound library.

`:)`

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