Mario sunshine’s sound keeps cutting out.

my specs are.
CPU: Intel® Core™ i5 CPU 650 @ 3.20GHz
Ram: 4,00 G
Operating system: windows 7.
Video card: NVIDIA Ge Force GTX 650.

My dolphin build is 4,0-1776.

My configurations are.
I’m using DSP HLE emulation (fast)
DSPLLE on Separate Thread is unchecked.
Dump audio is unchecked.
Audio Backend is set to xAudio2und options are.