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Put the duck in a vacuum chamber and you won't hear it quack. You won't hear it explode due to pressure differential either! 
i would say yes it would be possible but you would have to restrict the sound to frequencys beyond the the range at which we can hear, cotrol the fequenc
Na it vill yeach me two get tings wrght first time.
It is possible to arrange things with multiple speakers emitting a pure tone so that when you stand in a particular place you can't her anything coming out of them no matter how loud you turn the volume up.This is all about the addition and subtraction of waves.It's a bit harder to work out where you should stand but it is possible to do this with reflected sound too.The sound still reflects but when it eventually comes together at your ear all the positive going waves are cancelled by the negative going waves and you hear no sound.This is an extremely contrived setup however and you would have difficulty reproducing the effect with your 7:1 home theatre system.