GIVE ANSWERS - English

Stem nou!onbeantwoord
Why can't I hear some word in a sentence?

In the audio book:''Streamline English Connection'' there is a sentence:''Why aren't  you interested in the news?''.I only hear ''Why you interested in the news?''.Is it possible that the speaker ignore the word:''aren't''?Why do I not hear the consonants ''nt''.It seems to me that there is a discontinue between ''Why'' and ''you''.Please give me an explain about that.