[Groxx]

Quite neat, thanks for sharing! I've never been able to play portions like this before, it's interesting.

Is there any way to make this display in real time, or is that not (currently?) possible with audio APIs?

[Bewelge]

The WebAudio API has an anlayser node that can create spectrogramms in real-time. The ones I've created in the past were nowhere near as detailed as this one though.

https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_A...