Help!!!!!!! please answer!!!!! lots of points!!!!!!!!!!?

i recently got a metallic blue flip camera. i try to film a video but when i spoke in real life iSounded any other girl but when i re-watched the clip i sounded really deep like a man!!!!!!!! the camera didnt really have an effect much on my brother. he sounded a little higher than he really was. just a tiny bit. but i sound super deep. so can anyone tell me what is wrong with my filming or how can i find out what i really sound like?