Feature Engineering

1. Fourier transform

   1. youtube

2. Read this first, by Jonathan Hui - a/d, boost, Mel-frequency cepstral coefficients (MFCC), Perceptual Linear Prediction (PLP), Hanning vs Hamming, window, discrete fourier transform (DFT), IDFT.

3. Learning from Audio Series by mlearnere

   1. Learning from Audio: Wave Forms

   2. Learning from Audio: Time Domain Features

   3. Learning from Audio: Fourier Transformation

   4. Learning from Audio: The Mel Scale, Mel Spectrograms, and Mel Frequency Cepstral Coefficients

   5. Learning from Audio: Pitch and Chromagrams

4. Spectrogram

   1. Understanding the Mel Spectrogram, 2, 3, 4, delta deltas

5. Mel-frequency cepstral coefficients (MFCC)

   1. youtube