code: def testMD5(self):
      dir = join(testdata.audio_dir, "recorded")
      _, _, _, md5_wav, _, _ = AudioLoader(
          filename=join(dir, "dubstep.wav"), computeMD5=True
      )()
      _, _, _, md5_flac, _, _ = AudioLoader(
          filename=join(dir, "dubstep.flac"), computeMD5=True
      )()
      _, _, _, md5_mp3, _, _ = AudioLoader(
          filename=join(dir, "dubstep.mp3"), computeMD5=True
      )()
      _, _, _, md5_ogg, _, _ = AudioLoader(
          filename=join(dir, "dubstep.ogg"), computeMD5=True
      )()
      _, _, _, md5_aac, _, _ = AudioLoader(
          filename=join(dir, "dubstep.aac"), computeMD5=True
      )()
  
      # results should correspond to ffmpeg output (computed on debian wheezy)
      #   ffmpeg -i dubstep.wav -acodec copy -f md5 -
      self.assertEqual(md5_wav, "bf0f4d0613fab0fa5268ece9b043c441")
      self.assertEqual(md5_flac, "93ee45bc8776eed656a554b32d0d9616")
      self.assertEqual(md5_mp3, "1e5a598218e9b19cfe04d6c2f61f84a6")
      self.assertEqual(md5_ogg, "a87dad40fea0966cc5b967d5412e8868")
      self.assertEqual(md5_aac, "9a4c7f0da68d4b58767f219c48014f9c")
  
file_path: essentia/test/src/unittests/io/test_audioloader_streaming.py
imports: from essentia_test import *
  import essentia
  from essentia.streaming import AudioLoader
  import sys
label_desc: Use image node_id 12 for calling the TestAudioLoader_Streaming obj's underlying member method code with example usage: obj.testMD5() without return types