Is it defying physics to hear a conversation through a glass front building, while outside?

Question

Is it defying physics to hear a conversation through a glass front building, while outside? If there aren't any other outside noises interfering, and the building is a small cabin-like structure, where four people crowds it? If it is possible, how far would the sound wave travel?

Answer 1

What an odd question. When the sound inside the building strikes the glass part of the sound passes through the glass to the outside and part of the sound reflects back into the building. The laws of physics concerning conservation of energy and momentum must be preserved. By matching the boundary conditions at the air glass interface this can be accomplished. 

So, the answer to the question is no it is not defying physics for this to happen. The sound waves could travel very far, there is really no limit.