title: Recursing through a directory and converting music
body: <p>I'm writing a quick script to go through huge amounts of music to convert all the m4as to mp3s. Most of them are already mp3s, but I'd like all of them to be mp3s. Here's what I have so far:</p>
  
  <pre><code>for f in *.m4a; do ffmpeg -i "$f" -acodec libmp3lame -ab 320 "${f%.m4a}.mp3"; done
  </code></pre>
  
  <p>Does it on one level, how do I integrate this <code>ffmpeg</code> into a <code>find</code> command to do it recursively?</p>
  
  <p>Thanks for the help!</p>