title: C:Split wav file by silence gap
body: <p>I have a bunch human reading simple sentence (hello world) as a wav file,
  How can I break the wav file for 2 wav files each contains word (hello and world) by automatically recognizing the gap between the words? 
  Unfortunately I was unable to find tool to do it for me, so I will write C code that do that,
  As for my understanging, the gaps should be low numeric values in the wav file, is that correct? 
  I know how to break the files, 
  I Will glad to get approach for the gap recognition problem.
  Thank you!</p>