shalshal 0 Newbie Poster

Hi, i really need help with this.. i am trying to create an application that will be able to recognize the sounds that the user has already recorded. and once the sounds are matched, it must alert the user.

Any idea on how i can go about to start this?
This is my major project and i have no idea on how to start :S

what are the softwares that i would need other than visual studios?
and if possible does anyone have any sample codes for reference.

Please help.. Thank you in advance :)