Weird voice or sound during birthday scene?

During the scene at the birthday party when the mom takes Skeeter outside to discuss the school closing, right after Skeeter says "You're scary, bad with people and children are nervous around you, that doesn't sound right", I can hear what sounds like a girl or ghost-sounding voice right over the "sound right" spot in the sentence. It is very hard to hear but I heard it slightly clearer while wearing headphones.

Does anyone else hear this sound? It is not background noise as it almost distorts that part of the sentence. It may just be an audio error since I've heard there are issues with the audio in some parts of this movie. Can anyone else hear this on their copy of the dvd? It is hard to hear but once you can pick it out, you can hear it every time. Just wondering if my dvd is defective.