Hi,may computer sound is cutting,please help me thank u

Hi
My computer sound is cutting
Please help
Thank u

1. Reset PRAM.  http://support.apple.com/kb/PH14222
2. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".
Best.

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