How can I hear and talk on my skype?

I have tried searching for some sort of noise cancelling software, does anyone know any software that would do this? Or is it even possible? I welcome any sort of help. :)

Just barely,but they can hear it. (I have my earphones on the whole time,so the person doesn't hear it from my speakers). How can I turn this off? I don't recall having this problem with my old earphones,help will be appreciated.

What equipment do you need ? do you need a microphine ? if so , where can i get a mic ? i only want to talk (not on chat , but buy calling them) I have a desktop computer .

I have tried every concotion to try and fix and Im at wits end !!

I try to talk using skype but i can hear what people say but people cant hear me.pls any one can give me the sollution.i tried with diffrent headphone but it still does not work.

I bought my pc 3 months ago, it was working fine. Few days ago, my friend told me that a lot of noise comes from my mic when i call him on skype. So i tried 3 different mics but my friend still observed noise. So now what is the solution of my problem...