title: FileNotFoundError: [WinError 2] system can't find the file specified
body: <p>I used to load waveform file with librosa but failed</p>
  
  <p>I tried to check the kernel.jason file to fix it</p>
  
  <pre><code>import librosa
  import matplotlib.pyplot as plt
  import numpy as np
  import librosa.display
  import IPython.display as ipd
  %matplotlib inline
  
  filepath = './audio_train/happy/'
  filename = filepath + '00334.wav'
  
  y, sr = librosa.load(filename, sr=None)
  </code></pre>
  
  <blockquote>
    <p>FileNotFoundError: [WinError 2] The system cannot find the file
    specified.</p>
  </blockquote>