title: Trying to get DeepSpeech to work. SoX not found even though I pip installed it?
body: <p>The error I'm getting is:</p>
  <blockquote>
  <p>FileNotFoundError: [Errno 2] SoX not found, use 16000hz files or
  install it: The system cannot find the file specified</p>
  </blockquote>
  <p>My audio file is from an mp4 video file that was then converted to a WAV file from VLC. The sampling rate is 8000 Hz by default, and it appears that DeepSpeech needs 16kHz files and therefore the SoX plugin.</p>
  <p>I ran pip install SoX and <code>pip install --upgrade SoX</code>.<br />
  Requirement already satisfied: SoX in <code>e:\downloads\deep speech\lib\site-packages (1.4.1)</code><br />
  Requirement already satisfied: numpy&gt;=1.9.0 in e:\downloads\deep speech\lib\site-packages (from SoX) (1.21.4)<br />
  So it's here. I then added E:\Downloads\Deep Speech\Lib\site-packages to system environment variables on Windows just in case. I'm new to Python in general and stumped here.</p>
  <p>Could someone give me a hand?</p>