title: Gender and Age group identification from audio data set in python
body: <p>I am a newbee in ML and trying to identify gender and age group of a speaker based on the audio files data set. I am trying to use <em>librosa</em> for this.</p>
  
  <p>Can run up to this code and now don't know how to proceed further. 
  Any help would be appreciated.</p>
  
  <pre><code>for file in range(0,len(audio_files),1):
      audio, sfreq = lr.load(audio_files[file])
      time = np.arange(0,len(audio)) / sfreq
  
      fig, ax = plt.subplots()
      ax.plot(time,audio)
      ax.set(xlabel='time(s)', ylabel='Sound Amplitude')
      plt.show()
  </code></pre>