What are the libraries for sound processing in JavaScript (if possible OpenSource)?

Question

JavaScript

Good day! There was a task of sound processing (for example, to draw visualizations, as in Winamp) using Javascript. Tried to find some libraries for this case. Of the most trusted ones, I called Audio_Data_API. Actually the question is, what other libraries exist? Thanks in advance for your replies.

Answer 1

Googling a bit I found :
www.smartjava.org/content/exploring-html5-web-audi...
ianreah.com/2013/02/28/Real-time-analysis-of-strea...
request audio spectrum js

Answer 2

I doubt there are proprietary JS libraries :)