Update:
Apparently this is not because of SVP. But because of the movie audio is DTS/5.1 and my speaker is simply 2.1 stereo.
MPC-HC 64 bit and VLC has been set up to output to 2.1 stereo. While i hasn't set up the newly installed MPC-HC 32 bit properly.
Put AC3Filter as preferred external filter has solved this problem.