title: RuntimeError: Binary 'sox' could not be found
body: <p>I am playing with google speech library as follows:</p>
  
  <pre><code>from google_speech import Speech
  
  # say "Hello World"
  text = "Hello World"
  lang = "en"
  speech = Speech(text, lang)
  speech.play()
  </code></pre>
  
  <p>getting this error:</p>
  
  <pre><code>RuntimeError                          
  
      Traceback (most recent call last)
  &lt;ipython-input-2-4daa3294f636&gt; in &lt;module&gt;()
  ----&gt; 1 from google_speech import Speech
        2 
        3 # say "Hello World"
        4 text = "Hello World"
        5 lang = "en"
  
  D:\soft\Ins\anac\lib\site-packages\google_speech\__init__.py in &lt;module&gt;()
      321 
      322 # check deps
  --&gt; 323 bin_dep.check_bin_dependency(("sox",))
      324 
      325 
  
  D:\soft\Ins\anac\lib\site-packages\google_speech\bin_dep.py in check_bin_dependency(bins)
        5   for bin in bins:
        6     if shutil.which(bin) is None:
  ----&gt; 7       raise RuntimeError("Binary '%s' could not be found" % (bin))
  
  RuntimeError: Binary 'sox' could not be found
  </code></pre>
  
  <p>i am working on windows, and i did all instructions:</p>
  
  <p>If you don't already have it, install pip for Python 3
  Install Google Speech: <code>pip3 install google_speech</code>
  Install SoX, with MP3 support. On Ubuntu and other Debian derivatives: <code>sudo apt-get install sox libsox-fmt-mp3</code>. Windows users can download binaries on the SoX website, once installed you also need to copy libmad DLL in the directory where you have installed SoX, and to add this directory to your PATH environment variable.</p>