You're looking at this wrong. Question titles should not be repeated in the question body. That's, at best, noise. It should be expanded in the question body.
The question title is supposed to be a very short, concise, version of the question you're about to ask. The question body should provide the context, all the necessary details (like code, error messages, description of the behavior you're seeing that's not what you expect), and then your actual problem you're not managing to solve yourself. It should also include what you've already attempted to fix your issue/resolve your problem. (Not necessarily in that order.)
If you find yourself writing a question on Stack Overflow that entirely fits in the title, chances are it's not a good question for Stack Overflow – the first revision of the post you link to is a pretty good example of that. It doesn't show any effort on your side, and looks like you've dumped that title into the Stack Overflow question page by mistake, when you were actually trying to hit a search engine to get leads.
You'll get better help (and less close votes) if you show that you've tried to help yourself before posting on any Stack Exchange site, and you make sure your question body all the following:
- What you're trying to achieve
- What you've tried so far
- How these things have failed
- Where exactly you're stuck at.
For questions that are more in the form of:
Can someone explain how this thing works?
You should make sure that you explain what part of that thing exactly you don't understand, whether it's the syntax, the algorithm, a specific function/keyword/whatever, interactions with another library/runtime/browser/...
As it was when you posted here, your question was lacking this. So it was hard to know how to answer. Are you looking for a theoretical treatment of noise generation? (That could require entire books.) Or it there something you're not getting the loop structure? The event handling? What these channels do/represent? How they're tied to your audio?
tl;dr: The title is a teaser. It should tell people casually browsing the site what your question is going to be about so they can quickly determine if they're interested or knowledgeable in that area and could help (or benefit from answers). The body should give all the necessary details so that someone can actually solve your problem.