Recording Problem in w890i

hi
i start a music in my pc and then i try to record it using my w890i i place the phone near my keybord and not near the speakers. when i listenn to the recorded sound i hear some cracking sound i background and sound i not loud either poor quality i would say . but when i do the sam thing but this time i go into the camera and start recording a video clip and i place the phone i exactly same place and record the music and now sound quality is better and i don't hear thoes cracking sound. what does this meens is there a fault in my phone or is it firmware.
can any one with w890i do what i did and tell me their result
please.

have a nice day
/surajalok