I starting gaming with a friend on a PC and I cannot talk with him.

I have checked all settings for my internals: the sound input/output/mic settings... I can barely hear my voice which sounds tiny and scratchy. Do I need to purchase externals?

Do I need to get some type of gaming addon?

I've been using Apple/Mac since the beginning. I had one of the original LC's with the signatures of those who worked on it. LOVE MAC but still stupid.

Thanks for any help or advice.