Awais193,
Posting the same message in such a short duration will not get your question answered any quicker.
I do not own a PS3, but I'm positive that a DVI cable can only pass through video signals only. So theoretically if you use a HDMI to DVI cable you will not get sound only visuals because DVI is for visuals not sound!
HDMI cable should be avoided for audio unless you have the proper equipment such as a compatible AV receiver.
Your best bet is to use the red, white and yellow cable and hook it up to the TV. The white and red cable is for the audio.