title: os.system() returns error code 32512 - Python
body: <p>I am using the following system command in Python 2.7. I am able to execute the same command in terminal successfully whereas I am not able to run it in python(getting return code = <strong>32512</strong>). The command basically converts a mp3 file into a wave file along with stereo to mono conversion. I am able to run the same command in terminal successfully.</p>
  
  <p>Below is the command I'm trying out:</p>
  
  <pre><code>os.system("ffmpeg -i /Users/krish/audio.mp3 -acodec pcm_s16le -ar 16000 -ac 1 /Users/krish/converted_audio.wav")
  </code></pre>
  
  <p>I also tried using the subprocess command but it gave the same <strong>32512</strong> return code.</p>
  
  <p>Could anyone help me out on what's wrong with this?</p>