Fixed!
Hey,
For those who stumble to this thread with the same problems.
For me I managed to fix it.
It was an easy fix!
What happened with my MBA is that, when I installed everything I installed Chrome and I didn't install the dedicated Adobe Flash (Because Chrome already has Flash built-in to the browser).
So for me, the popping and static sounds were coming mainly when I had my browser open (So when YouTubing, surfing other sites that has flash and sound etc.).
The way to fix it is to disable the flash in Chrome and install Adobe's Flash and then VOILA! It works
To disable Chrome's Flash, follow
this link.
Once you've disabled your Chrome's Flash, go to a YouTube video.
It will then ask you to install flash, click on the links provided and it will take you Adobe's site. Then download it.
Once downloaded and installed you will have to restart your laptop (If you don't it won't work).
Once restarted, it shouldn't pop or crackle anymore
