Figure 2

An example of MFCC features calculated from a descending scale of notes from G#4 to F#3 (fundamental frequency from 415 Hz to 208 Hz) sung by a male singer with the phoneme /m/. The solid line represents the 3rd MFCC and the dashed line the 7nd MFCC. The 3rd MFCC is clearly affected by the variation in pitch.