Feature Engineering
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Fourier transform
, by Jonathan Hui - a/d, boost, Mel-frequency cepstral coefficients (MFCC), Perceptual Linear Prediction (PLP), Hanning vs Hamming, window, discrete fourier transform (DFT), IDFT.
Learning from Audio Series by mlearnere
Spectrogram
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Mel-frequency cepstral coefficients (MFCC)