title: FileNotFoundError in Jupyter Notebook, even though the file is there
body: <p>This was all written in Jupyter Notebook online. What supposed to happen, is the first line of the code is a command that converts some file in the folder labeled "capstone" into an mp4. This works fine, however the problem I'm running into is a "FileNotFoundError", and I'm not sure why this is happening, as I check to see if the file is there, it is in fact there.</p>
  
  <pre><code>!ffmpeg -i recording1.mov -q:v 0 output.mp4
  
  import librosa
  audio_path = '/home/gentry/capstone/output1.mp4'
  x , sr = librosa.load(audio_path)
  print(type(x), type(sr))
  
  import matplotlib.pyplot as plt
  import librosa.display
  plt.figure(figsize=(14, 5))
  
  librosa.display.waveplot(x, sr=sr)
  
  X = librosa.stft(x)
  Xdb = librosa.amplitude_to_db(abs(X))
  plt.figure(figsize=(14, 5))
  
  librosa.display.specshow(Xdb, sr=sr, x_axis='time', y_axis='hz') 
  
  librosa.display.specshow(Xdb, sr=sr, x_axis='time', y_axis='log')
  </code></pre>
  
  <p>The output should be a visualized waveform of a sound, and two subsequent Fourier transform graphs.
  I can provide additional details as requested</p>