Urgent plz sound lagged

[tushardehra]

hi during gameplay today bf3 multiplayer my sound lagged for 2 seconds like jjjjjj...thn no problem anybody tell me if it is software or hardware all temperatures r normal
i5 2500k
msi h61mp20
palit gt430
16gb ddr3 kingston

 

[gamerk316]

What does the audio setup look like?

 

[tushardehra]

mean?