title: Search for a particular spoken word in audio files
body: <p>I have around 3000+ audio files of the same author. I need to transcribe those lectures, where the author has said about a particular word. </p>
  
  <p>So I need a software solution, which will find automatically all the files where the particular word is said.  There can be some variation how the word has been spoken , because the audio files were spoken over 15 years. </p>
  
  <p>Free/Open Source solution is appreciated.</p>
  
  <p>I tried searching , and got to know about Sphinx. But I am unable to set it up to use for my project. Any help is greatly appreciated. Please</p>