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Exercise

Calculating features from the envelope

Now that you've removed some of the noisier fluctuations in the audio, let's see if this improves your ability to classify.

audio_rectified_smooth from the previous exercise is available in your workspace.

Instructions
100 XP
  • Calculate the mean, standard deviation, and maximum value for each heartbeat sound.
  • Column stack these stats in the same order.
  • Use cross-validation to fit a model on each CV iteration.