"Before extracting features from a frame of audio, we first multiply the frame by a window, such as the Hamming window pictured below, to reduce artifacts caused by the edges of the frame."
"Mel-frequency cepstral coefficients (MFCCs) are a set of features that describe the coarse overall shape of a spectrum but not the fine harmonic structure. MFCCs are often used to describe the timbre of a musical signal."
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