title: Find a file, convert and store it in the same sub-directory
body: <p>I want to convert a <strong>.au</strong> audio dataset to <strong>.wav</strong>. It's stored genre-wise in folders (genres -> rock,jazz,metal,etc). I can find the audio files using the command - </p>
  
  <pre><code>find -type f -name '*.au'
  </code></pre>
  
  <p>But I don't know how to pass that list to sox. Also that list has the sub-directory name appended to it at the beginning. How do I remove that?</p>