Default [Q] Spearkers make weird noise when talking over Loudspeaker

First of all, aahhh, good to be back on XDA! Been a long time This place still as cool as before? I sure damn hope so

Ok guys, here is the thing. I have a problem with my Galaxy S3. Whenever I turn on the loudspeakers, there comes this sharp, weird, annoying sound. If I am only listening to the person on the other side, it works fine but when I say something, that cracking, weird sound comes back. It is so loud and so annoying that I almost always have to switch over to the handset speaker. I'd love to be able to use my phone and use the hands free option. It's just more productive this way.

Oh by the way, I haven't rooted my phone as I am OK with the JB updated I received a few months ago.

As always, thanks a lot for your time and consideration