title: PocketSphinx python and setting the acoustic model?
body: <p>I was reading this guide on <a href="http://cmusphinx.sourceforge.net/wiki/tutorialconcepts" rel="noreferrer">speech recognition</a>, and it mentioned that I need three items for speech recognition: Acoustic model, Language Model, Phonetic Dictionary.</p>
  
  <p>I wanted to start playing with this <a href="http://cmusphinx.sourceforge.net/wiki/gstreamer" rel="noreferrer">python demo</a>, which uses Gstreamer to capture from the mic and resample to 8kHz, 16-bit PCM audio. </p>
  
  <p>I see that I can specify the language model and phonetic dictionary, and I use the one [provided by cmu]:</p>
  
  <pre><code>http://sourceforge.net/projects/cmusphinx/files/Acoustic%20and%20Language%20Models/US%20English%20HUB4%20Language%20Model/
  </code></pre>
  
  <p>But I am confused where I should specify the acoustic model? Does gstreamer have its own acoustic model I'm implicitly using? I was hoping to use the acoustic model provided here for slightly better results:</p>
  
  <pre><code> http://sourceforge.net/projects/cmusphinx/files/Acoustic%20and%20Language%20Models/US%20English%20HUB4%20Acoustic%20Model/
  </code></pre>
  
  <p>(Sorry about the hyperlinks. I can't post more than 2 links with rep less than 10)</p>