Variable, color font as audio visualizer

Grzegorz Luk (gluk)

The animation was created in search of new applications for variable, color fonts

https://youtu.be/qAvhR4Owsxk

mitradranirban

Excellent work. We are yet to find out many uses of color and variable fonts. 
With a bit of css and JavaScript, I am trying to make a variable font help in training writing in Bangla in a website. 
https://youtube.com/shorts/O6frDIHFjJ4

Grzegorz Luk (gluk)

next try, this time with variable contrast.

https://youtu.be/biNWMPaUkYA

James Puckett

Nice work.

Peter Constable

Some work by Rob Stenson this reminded me of—these use variable fonts (plus other animation tools), though not colour variable fonts:

Santhosh Thottingal

Hi, I am the designer of Nupuram color font. I had created an interactive demo where the letters will "dance" as per the voice input from mic.
You may try it here: It may ask microphone permission. After that sing a song and watch letters dance with the song.
https://codepen.io/santhoshtr/pen/dyjdyoY
I have a recording here https://youtu.be/y1RY_6xuAxA

The colorfont palettes are animatable(Only in Chrome). Based on that I have an interactive demo here https://codepen.io/santhoshtr/pen/JjzrzVm - Moving mouse over letters make the letters glow.